CN216596051U - Linear voltage stabilizing circuit and electrical equipment - Google Patents
Linear voltage stabilizing circuit and electrical equipment Download PDFInfo
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- CN216596051U CN216596051U CN202122390469.9U CN202122390469U CN216596051U CN 216596051 U CN216596051 U CN 216596051U CN 202122390469 U CN202122390469 U CN 202122390469U CN 216596051 U CN216596051 U CN 216596051U
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Abstract
本实用新型公开了一种线性稳压电路及电器设备，该线性稳压电路包括：基础电路和第一稳压电路；基础电路包括电源芯片和储能器件，基础电路用于将输入电压转换为第一预设电压；基础电路的输出端与第一稳压电路的输入端连接；第一稳压电路包括第一比较器和第一开关器件；第一开关器件设置于第一稳压电路的输入端与输出端之间，第一稳压电路的输出端与第一比较器的正相端连接，第一比较器的输出端与第一开关器件的控制端连接。本实用新型同时兼容降压与稳压功能，使用的二极管元器件较少，降低了电路损耗及失效风险，提升了电路的降压稳压效果。
The utility model discloses a linear voltage stabilization circuit and electrical equipment. The linear voltage stabilization circuit comprises: a basic circuit and a first voltage stabilization circuit; the basic circuit comprises a power supply chip and an energy storage device, and the basic circuit is used for converting an input voltage into the first preset voltage; the output end of the basic circuit is connected to the input end of the first voltage stabilizer circuit; the first voltage stabilizer circuit includes a first comparator and a first switch device; the first switch device is arranged on the first voltage stabilizer circuit Between the input end and the output end, the output end of the first voltage regulator circuit is connected with the non-inverting end of the first comparator, and the output end of the first comparator is connected with the control end of the first switching device. The utility model is compatible with both step-down and voltage-stabilizing functions, uses fewer diode components, reduces circuit loss and failure risk, and improves the voltage-voltage voltage-stabilizing effect of the circuit.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to a linear voltage stabilizing circuit and electrical equipment.
Background
The current voltage reduction circuit is mainly used for carrying out series voltage reduction through a plurality of diodes, the conducted voltage reduction of the diodes can change along with the change of the current flowing through and the temperature of devices, so that the output power supply voltage is unstable, when an electric load sensitive to a power supply is used, reset or shutdown caused by unstable power supply can occur, meanwhile, because the loss of the diodes is high, the plurality of diodes arranged in the voltage reduction circuit can generate large loss, the utilization efficiency of a power supply system is influenced, the fault rate of the diodes is high, the failure risk caused by semiconductor devices can be directly influenced by the number of the devices, and the failure risk of the circuit with the number of the diodes connected in series in the voltage reduction circuit is obviously higher than that of the circuits with the number of the devices. Therefore, the conventional voltage reduction circuit also has the problems of unstable output voltage, high circuit loss and high failure risk.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a linear voltage stabilizing circuit and electrical equipment, which can simultaneously have the voltage reducing and stabilizing functions, uses fewer diode components, reduces the circuit loss and the failure risk, and improves the voltage reducing and stabilizing effects of the circuit.
According to an embodiment of the present invention, in one aspect, a linear voltage regulator circuit is provided, including: the circuit comprises a basic circuit and a first voltage stabilizing circuit; the basic circuit comprises a power supply chip and an energy storage device, and is used for converting an input voltage into a first preset voltage; the output end of the basic circuit is connected with the input end of the first voltage stabilizing circuit; the first voltage stabilizing circuit is used for converting the first preset voltage into a second preset voltage, and comprises a first comparator and a first switch device; the first switching device is arranged between the input end and the output end of the first voltage stabilizing circuit, the output end of the first voltage stabilizing circuit is connected with the positive phase end of the first comparator, and the output end of the first comparator is connected with the control end of the first switching device; wherein the second preset voltage is less than the first preset voltage; the first comparator is used for controlling the first switching device to be switched on when the voltage of the output end of the first voltage stabilizing circuit is smaller than the second preset voltage, and controlling the first switching device to be switched off when the voltage of the output end of the first voltage stabilizing circuit is larger than or equal to the second preset voltage.
By adopting the technical scheme, the first switching device can be switched on when the output end voltage of the first voltage stabilizing circuit is smaller than the second preset voltage, so that the output end voltage of the first voltage stabilizing circuit is controlled to rise, and the first switching device is switched off when the output end voltage of the first voltage stabilizing circuit is larger than the second preset voltage, so that the output end voltage of the first voltage stabilizing circuit is controlled to be reduced, the voltage reducing and stabilizing functions are realized, meanwhile, fewer diode components are used, the circuit loss and failure risk are reduced, the material cost is reduced, and the voltage reducing and stabilizing effect of the circuit is improved.
Preferably, the linear voltage regulating circuit comprises: a second voltage stabilizing circuit; the second voltage stabilizing circuit is used for converting the second preset voltage into a third preset voltage, and comprises a second comparator and a second switching device; the second switching device is arranged between the input end and the output end of the second voltage stabilizing circuit, the output end of the second voltage stabilizing circuit is connected with the positive phase end of the second comparator, and the output end of the second comparator is connected with the control end of the second switching device; wherein the third preset voltage is less than the second preset voltage; the second comparator is used for controlling the second switching device to be switched on when the voltage of the output end of the second voltage stabilizing circuit is smaller than the third preset voltage, and controlling the second switching device to be switched off when the voltage of the output end of the second voltage stabilizing circuit is larger than or equal to the third preset voltage.
Through adopting above-mentioned technical scheme, use second switching device and second comparator to build second voltage stabilizing circuit, can further predetermine the voltage step-down with the second and convert the third into and predetermine voltage and keep it stable, have step-down and steady voltage function concurrently, use components and parts less, practiced thrift material cost, reduced the circuit loss.
Preferably, the linear voltage regulating circuit comprises: a third voltage stabilizing circuit; the input end of the third voltage stabilizing circuit is connected with the output end of the second voltage stabilizing circuit, the third voltage stabilizing circuit comprises a voltage stabilizing chip, the input end of the voltage stabilizing chip is connected with the output end of the third voltage stabilizing circuit, and the third voltage stabilizing circuit is used for converting the third preset voltage into a fourth preset voltage.
By adopting the technical scheme, the third voltage stabilizing circuit is built based on the voltage stabilizing chip, the third preset voltage can be further converted into the fourth preset voltage, the third preset voltage can be applied to a power supply module with various voltage requirements, and the universality of the voltage stabilizing circuit is improved.
Preferably, the first voltage stabilizing circuit further comprises a first resistor, a second resistor, a third resistor and a fourth resistor, two ends of the first resistor and the second resistor are respectively connected with the output end of the first voltage stabilizing circuit and the positive phase end of the first comparator, and the first resistor is connected with the second resistor in parallel; the third resistor is connected between the output end of the first comparator and the control end of the first switching device, and the fourth resistor is connected between the output end of the first comparator and the input end of the first voltage stabilizing circuit.
By adopting the technical scheme, the resistor element is arranged in the first voltage stabilizing circuit, so that the first comparator monitors whether the output voltage of the first voltage stabilizing circuit is the second preset voltage or not, the output voltage of the first voltage stabilizing circuit is stabilized at the second preset voltage, the voltage stabilizing effect is improved, the current is limited by the switching device, and the normal work of the first switching device is ensured.
Preferably, the first voltage stabilizing circuit further comprises a third capacitor and a third electrolytic capacitor, two ends of the third capacitor and two ends of the third electrolytic capacitor are respectively connected with the output end of the first voltage stabilizing circuit and the second resistor, and the third capacitor and the third electrolytic capacitor are connected in parallel.
By adopting the technical scheme, the third capacitor is arranged to carry out high-frequency filtering on the output second preset voltage power supply, and the third electrolytic capacitor is arranged to store energy of the power supply so as to ensure that the voltage stabilizing circuit can always output stable power supply voltage.
Preferably, the second voltage stabilizing circuit further comprises a fifth resistor, a sixth resistor, a seventh resistor and an eighth resistor, two ends of the fifth resistor and the sixth resistor are respectively connected with the output end of the second voltage stabilizing circuit and the positive phase end of the second comparator, and the fifth resistor is connected with the sixth resistor in parallel; the seventh resistor is connected between the output end of the second comparator and the control end of the second switching device, and the eighth resistor is connected between the output end of the second comparator and the input end of the second voltage stabilizing circuit.
By adopting the technical scheme, the resistor element is arranged in the second voltage stabilizing circuit, so that the second comparator can monitor whether the output voltage of the second voltage stabilizing circuit is the third preset voltage or not, the output voltage of the second voltage stabilizing circuit is stabilized at the third preset voltage, the real-time control of the voltage stabilizing circuit is realized, the current is limited by the switching device, and the normal work of the second switching device is ensured.
Preferably, the second voltage stabilizing circuit further comprises a fourth electrolytic capacitor, and two ends of the fourth electrolytic capacitor are respectively connected with the output end of the second voltage stabilizing circuit and the sixth resistor.
By adopting the technical scheme, the fourth electrolytic capacitor is arranged in the second voltage stabilizing circuit to store energy of the power supply, so that the second voltage stabilizing circuit can always output stable power supply voltage.
Preferably, the third voltage stabilizing circuit further comprises a fourth capacitor, a fifth capacitor and a fifth electrolytic capacitor; the fourth capacitor is connected with the fourth electrolytic capacitor in parallel, the anode of the fifth electrolytic capacitor is connected with the output end of the voltage stabilizing chip, the cathode of the fifth electrolytic capacitor is grounded, and the fifth capacitor is connected with the fifth electrolytic capacitor in parallel.
By adopting the technical scheme, the capacitor and the electrolytic capacitor are arranged in the third voltage stabilizing circuit, so that high-frequency filtering and power energy storage of the output power voltage can be realized, and the reliability of the voltage reducing circuit is ensured.
Preferably, the first switching device is a triode, and the energy storage device comprises a first electrolytic capacitor, a second electrolytic capacitor and an inductor.
By adopting the technical scheme, the triode is used, the circuit can be accurately controlled to be switched off or switched on, the circuit controllability is improved, and the power supply energy storage can be realized by arranging the electrolytic capacitor and the inductor in the basic circuit.
According to an embodiment of the present invention, in another aspect, an electrical apparatus is provided, including the linear voltage stabilizing circuit of any one of the first aspect.
The utility model has the following beneficial effects: the voltage reduction circuit is provided with the comparator and the switch device, the output end of the first voltage stabilizing circuit is connected with the positive phase end of the comparator, the first switch device can be switched on when the output end voltage of the first voltage stabilizing circuit is smaller than the second preset voltage, so that the output end voltage of the first voltage stabilizing circuit is controlled to rise, the first switch device is switched off when the output end voltage of the first voltage stabilizing circuit is larger than the second preset voltage, the output end voltage of the first voltage stabilizing circuit is controlled to be reduced, the voltage reduction and voltage stabilization functions are realized, meanwhile, fewer diode components are used, the circuit loss and failure risk are reduced, and the voltage reduction and voltage stabilization effect of the circuit is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a diagram of a linear voltage regulator circuit according to the present invention;
FIG. 2 is a diagram of a voltage regulator circuit according to the present invention.
Description of reference numerals:
11-a base circuit; 12-a first voltage regulator circuit; u1-power chip; UB 1-first comparator; q1-first switching device; 21-a second voltage stabilizing circuit; 22-a third voltage stabilizing circuit; UB 2-second comparator; q2-second switching device; R1-R8-first to eighth resistors; C1-C5-first to fifth capacitors; E1-E5-first to fifth electrolytic capacitors; u2-voltage stabilization chip; D1-D2-first to second diodes; LK-inductance.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The present embodiment provides a linear voltage regulator circuit, referring to the linear voltage regulator circuit diagram shown in fig. 1, the linear voltage regulator circuit mainly includes: a base circuit 11 and a first regulation circuit 12.
The basic circuit 11 comprises a power supply chip U1 and an energy storage device, and is used for converting an input voltage into a first preset voltage; the output end of the basic circuit is connected with the input end of the first voltage stabilizing circuit. The input terminal of the base unit 11 is connected to the high voltage dc power VDC +, and the high voltage dc power is stepped down to a desired fixed voltage value, and the first predetermined voltage may be 15V.
The first regulating circuit 12 is configured to convert the first predetermined voltage into a second predetermined voltage, and includes a first comparator UB1 and a first switching device Q1. The first switching device Q1 is arranged between the input end and the output end O1 of the first voltage stabilizing circuit, the output end O1 of the first voltage stabilizing circuit is connected with the positive phase end + of the first comparator UB1, and the output end of the first comparator UB1 is connected with the control end of the first switching device Q1; the second preset voltage is less than the first preset voltage, and the second preset voltage may be 12V.
The first switching device Q1 may be a transistor, an output terminal of the first comparator UB1 is connected to a base terminal of the transistor Q1, a collector terminal of the transistor Q1 is connected to an output terminal of the base circuit 11, and an emitter terminal of the transistor Q1 is connected to an output terminal O1 of the first voltage regulator circuit.
The first comparator UB1 is configured to control the first switching device Q1 to turn on when the voltage at the output end of the first regulator circuit 12 is less than the second preset voltage, and control the first switching device Q1 to turn off when the voltage at the output end of the first regulator circuit 12 is greater than or equal to the second preset voltage.
The above linear voltage stabilizing circuit provided by this embodiment, through set up comparator and switching device in the step-down circuit, and connect the output of first voltage stabilizing circuit with the normal phase end of comparator, can make first switching device switch on when the output voltage of first voltage stabilizing circuit is less than second preset voltage, thereby control the output voltage of first voltage stabilizing circuit and rise, make first switching device turn-off when the output voltage of first voltage stabilizing circuit is greater than second preset voltage, thereby control the output voltage reduction of first voltage stabilizing circuit, step-down and voltage stabilization function has been realized, the diode components and parts that use simultaneously are less, circuit loss and failure risk have been reduced, the step-down and voltage stabilization effect of circuit has been promoted.
In one possible embodiment, referring to the voltage regulator circuit diagram shown in FIG. 2, the linear voltage regulator circuit further includes a second voltage regulator circuit 21 and a third voltage regulator circuit 22. The second voltage regulator circuit 21 is configured to convert the second preset voltage into a third preset voltage, and includes a second comparator UB2 and a second switching device Q2. The third preset voltage may be 5V.
The second switching device Q2 is disposed between the input end and the output end of the second voltage stabilizing circuit 21, the output end of the second voltage stabilizing circuit 21 is connected with the positive phase end of the second comparator UB2, and the output end of the second comparator UB2 is connected with the control end of the second switching device Q2; and the third preset voltage is smaller than the second preset voltage.
The second comparator UB2 is used to control the second switching device to turn on when the voltage at the output terminal of the second regulator circuit 21 is less than the third preset voltage, and to turn off when the voltage at the output terminal of the second regulator circuit is greater than or equal to the third preset voltage.
Through using second switching device and second comparator to build second voltage stabilizing circuit, can further predetermine the voltage step-down with the second and convert the third into and predetermine voltage and keep it stable, have step-down and steady voltage function concurrently, use components and parts less, practiced thrift material cost, reduced the circuit loss.
As shown in fig. 2, the input terminal of the third voltage stabilizing circuit 22 is connected to the output terminal of the second voltage stabilizing circuit, the third voltage stabilizing circuit 22 includes a voltage stabilizing chip U2, the input terminal of the voltage stabilizing chip U2 is connected to the output terminal of the third voltage stabilizing circuit, and the third voltage stabilizing circuit 22 is configured to convert the third preset voltage into a fourth preset voltage. The fourth preset voltage may be 3.3V, and the voltage regulation chip U2 down-converts the voltage of 5V into the voltage of 3.3V. Through building the third voltage stabilizing circuit based on the voltage stabilizing chip, the third preset voltage can be further converted into the fourth preset voltage, the power supply module with various voltage requirements can be applied, and the universality of the voltage stabilizing circuit is improved.
In a possible embodiment, as shown in fig. 1, the first regulator circuit further includes a first resistor R1, a second resistor R2, a third resistor R3, and a fourth resistor R4, two ends of the first resistor R1 and the second resistor R2 are respectively connected to the output end O1 of the first regulator circuit and the positive-phase end + of the first comparator UB1, the first resistor R1 is connected in parallel to the second resistor R2, and the negative-phase end of the first comparator UB1 is connected to the 3.3V power supply. The resistances of the first resistor R1 and the second resistor R2 may be determined according to the output voltage of the first regulator circuit (i.e., the second predetermined voltage) and the negative input voltage of the first comparator UB1, such as the negative input voltage of the first comparator UB1 is 3.3V, and when the output voltage of the first regulator circuit is 12V, the positive input voltage of the first comparator UB1 is 3.3V.
The voltage of the output end of the first voltage stabilizing circuit is divided by a first resistor R1 and a second resistor R2 to obtain Vfb1, the Vfb1 is input to the positive phase end of a first comparator UB1, the Vfb1 is compared with the input voltage Vref1 of the negative phase end of the first comparator UB1, if Vfb1 is smaller than Vref1, the first comparator UB1 is opened and outputs Vbase1 which is 15V voltage, a first switching device Q1 is conducted, and the voltage of the output end of the first voltage stabilizing circuit is increased to 12V; if Vfb1> Vref1, the first comparator UB1 outputs a low level, Vbase1 becomes 0V, and the first switching device Q1 is turned off, so that the voltage at the output end of the first voltage regulator circuit is reduced to 12V.
The third resistor R3 is connected between the output terminal of the first comparator UB1 and the control terminal of the first switching device Q1, and the fourth resistor R4 is connected between the output terminal of the first comparator UB1 and the input terminal of the first regulator circuit 12. The third resistor R3 is used to current-limit the transistor Q1, and the transistor Q1 may be an NPN transistor.
The resistor element is arranged in the first voltage stabilizing circuit, so that the first comparator monitors whether the output voltage of the first voltage stabilizing circuit is the second preset voltage or not, the output voltage of the first voltage stabilizing circuit is stabilized at the second preset voltage, the current is limited by the switching device, and the normal work of the first switching device is ensured.
As shown in fig. 1, the first voltage regulator circuit further includes a third capacitor C3 and a third electrolytic capacitor E3, two ends of the third capacitor C3 and two ends of the third electrolytic capacitor E3 are respectively connected to the output end of the first voltage regulator circuit and the second resistor R2, and the third capacitor C3 is connected in parallel to the third electrolytic capacitor E3. High-frequency filtering can be carried out on the output second preset voltage power supply by arranging the third capacitor, and power energy storage can be carried out by arranging the third electrolytic capacitor so as to ensure that the voltage stabilizing circuit can output stable power supply voltage all the time.
As shown in fig. 2, the second regulator circuit further includes a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, and an eighth resistor R8, wherein two ends of the fifth resistor R5 and two ends of the sixth resistor R6 are respectively connected to the output terminal of the second regulator circuit and the non-inverting terminal of the second comparator, and the fifth resistor R5 is connected in parallel to the sixth resistor R6.
The resistance values of the fifth resistor R5 and the sixth resistor R6 may be determined according to the output terminal voltage (i.e., the third predetermined voltage) of the second regulator circuit and the negative input voltage of the second comparator UB2, such as the negative input voltage of the second comparator UB2 is 3.3V, and when the output terminal voltage of the first regulator circuit is 5V, the fifth resistor R5 and the sixth resistor R6 may make the positive input voltage of the second comparator UB2 be 3.3V.
The voltage at the output end of the second voltage stabilizing circuit is divided by a fifth resistor R5 and a sixth resistor R6 to obtain Vfb2, the Vfb2 is input to the positive phase end of a second comparator UB2 and is compared with the input voltage Vref2 at the negative phase end of the second comparator UB2, if Vfb2 is smaller than Vref2, the second comparator UB2 opens and outputs Vbase2 which is 12V voltage, a second switching device Q2 is conducted, and the voltage at the output end of the second voltage stabilizing circuit is increased to 5V; if Vfb2> Vref2, second comparator UB2 outputs a low level, Vbase2 becomes 0V, and second switching device Q2 is turned off, so that the voltage at the output end of the second voltage stabilizing circuit is reduced to 5V.
The seventh resistor R7 is connected between the output terminal of the second comparator and the control terminal of the second switching device, and the eighth resistor R8 is connected between the output terminal of the second comparator and the input terminal of the second voltage stabilizing circuit. The second comparator can monitor whether the output voltage of the second voltage stabilizing circuit is the third preset voltage or not by arranging the resistor element in the second voltage stabilizing circuit, so that the output voltage of the second voltage stabilizing circuit is stabilized at the third preset voltage, real-time control over the voltage stabilizing circuit is realized, current is limited for the switching device, and normal work of the second switching device is guaranteed.
As shown in fig. 2, the second regulator circuit 21 further includes a fourth electrolytic capacitor E4, and both ends of the fourth electrolytic capacitor E4 are connected to the output end of the second regulator circuit 21 and the sixth resistor R6, respectively. The fourth electrolytic capacitor is arranged in the second voltage stabilizing circuit, so that energy storage of the power supply can be realized, and the second voltage stabilizing circuit can always output stable power supply voltage.
As shown in fig. 2, the third voltage regulating circuit further includes a fourth capacitor C4, a fifth capacitor C5, and a fifth electrolytic capacitor E5; the fourth capacitor C4 is connected in parallel with the fourth electrolytic capacitor E4, the anode of the fifth electrolytic capacitor E5 is connected with the output end of the voltage stabilizing chip U2, the cathode of the fifth electrolytic capacitor E5 is grounded, and the fifth capacitor C5 is connected in parallel with the fifth electrolytic capacitor E5. The capacitor and the electrolytic capacitor are arranged in the third voltage stabilizing circuit, so that high-frequency filtering of the output power supply voltage and power supply energy storage can be realized, and the reliability of the voltage reducing circuit is ensured.
In one embodiment, the first switching device and the second switching device are both NPN-type triodes, the base circuit 11 may be a BUCK base circuit, and as shown in fig. 1, the energy storage device in the base circuit 11 includes a power chip U1, a first electrolytic capacitor E1, a second electrolytic capacitor E2, an inductor LK, a first diode D1, a second diode D2, a first capacitor C1, and a second capacitor C2.
As shown in fig. 1, an input terminal of a power chip U1 is connected to a high-voltage dc power supply, an output terminal VCC of a power chip U1 is connected to a negative terminal of a first diode D1, an anode of a first diode D1 is connected to an output terminal of a basic circuit, a first electrolytic capacitor E1 and a first capacitor C1 are connected to an output terminal VCC of the power chip U1, a first electrolytic capacitor E1 and a first capacitor C1 are connected in parallel, two terminals of an inductor LK are respectively connected to the first capacitor C1 and the output terminal of the basic circuit, a negative terminal of a second diode D2 is connected between the first capacitor C1 and the inductor LK, an anode of the second diode D2 is grounded, the second diode D2 is a dc diode and starts to follow current, an anode of a second electrolytic capacitor E2 is connected to the output terminal of the basic circuit, a negative terminal of the second electrolytic capacitor E2 is grounded, and a second capacitor C2 is connected in parallel to the second electrolytic capacitor E2. The first diode D1 is a feedback diode, and can feed back the output voltage of the basic circuit to the power chip U1, so that the power chip can adjust the output voltage when the output voltage of the basic circuit is not the first preset voltage.
The above-mentioned linear voltage stabilizing circuit that this embodiment provided has step-down and steady voltage function concurrently, has adopted less components and parts to realize multistage step-down, and the circuit loss is less, and the reliability is high, and can realize the real-time control to the circuit break-make at steady voltage in-process, has promoted steady voltage effect.
Corresponding to the linear voltage stabilizing circuit provided in the foregoing embodiment, an embodiment of the present invention provides an electrical apparatus, and a power module of the electrical apparatus includes the linear voltage stabilizing circuit provided in the foregoing embodiment. The electrical equipment can be an air conditioner, and the linear voltage stabilizing circuit can be arranged in a load power supply system of an inner machine controller and an outer machine controller of the air conditioner.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202122390469.9U CN216596051U (en) | 2021-09-29 | 2021-09-29 | Linear voltage stabilizing circuit and electrical equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122390469.9U CN216596051U (en) | 2021-09-29 | 2021-09-29 | Linear voltage stabilizing circuit and electrical equipment |
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| CN216596051U true CN216596051U (en) | 2022-05-24 |
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Address after: 315191 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee after: NINGBO AUX ELECTRIC Co.,Ltd. Country or region after: China Patentee after: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. Address before: No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee before: NINGBO AUX ELECTRIC Co.,Ltd. Country or region before: China Patentee before: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. |
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