CN217769594U - Power supply circuit and electric equipment - Google Patents
Power supply circuit and electric equipment Download PDFInfo
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- CN217769594U CN217769594U CN202221579521.3U CN202221579521U CN217769594U CN 217769594 U CN217769594 U CN 217769594U CN 202221579521 U CN202221579521 U CN 202221579521U CN 217769594 U CN217769594 U CN 217769594U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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Abstract
The utility model discloses a supply circuit and consumer relates to power electronic technology field. The power supply circuit includes: the power supply input module is used for converting an accessed external power supply into a first power supply; the capacitor module is charged by utilizing a first power supply; the switch module provides a second power supply by utilizing the discharge of the capacitor module when in a conducting state; the control module is used for outputting a first signal to the switch module when the input of an external power supply is detected; the power supply module is also used for outputting a second signal to the switch module when the external power supply input is not detected and the power supply signal is detected; the first signal is used for controlling the switch module to be in a disconnected state, and the second signal is used for controlling the switch module to be in a connected state; the power output module supplies power to the control module and the load by utilizing the first power supply or the second power supply, realizes that the preset action is completed under the condition of power failure of the equipment, cancels a standby battery in the equipment, reduces the equipment cost, and ensures that the equipment is more energy-saving, environment-friendly and low-carbon.
Description
Technical Field
The utility model relates to a power electronic technology field especially relates to a supply circuit and consumer.
Background
At present, most of intelligent household equipment has a transient operation function in a power failure state, and is mainly used for completing operations which are not completed due to sudden power failure or providing an emergency operation function of a user in an emergency state. For example, the intelligent closestool can both realize carrying out the function of washing by water under the power failure state, avoids the in-process outage that the user went to the lavatory, can't wash the lavatory.
However, the main way for most smart home devices to realize the transient operation function in the power failure state is to use a backup battery as an emergency power supply. However, the spare battery is consumable and needs to be replaced regularly, the cost after sale is high, and the requirements of low carbon, energy conservation and environmental protection are not met. Therefore, providing a low-cost, energy-saving and environment-friendly emergency power supply mode is a technical problem to be solved urgently.
Novel content
The utility model discloses a main aim at provides a supply circuit and consumer aims at solving among the prior art urgent power supply mode under the equipment power-off state and needs to rely on the battery to realize, leads to equipment cost high, is not conform to the technical problem of low carbon, energy-concerving and environment-protective requirement.
In order to achieve the above object, the present invention provides a power supply circuit, the power supply circuit includes:
the power supply input module is used for converting an accessed external power supply into a first power supply;
the capacitor module is connected with the power input module and is charged by the first power supply;
the switch module is connected with the capacitor module, and provides a second power supply by utilizing the discharge of the capacitor module when the switch module is in a conducting state;
the control module is connected with the power input module and the switch module and used for outputting a first signal to the switch module when the external power input is detected; the power supply module is also used for outputting a second signal to the switch module when the external power supply input is not detected and a power supply signal is detected; the first signal is used for controlling the switch module to be in an off state, and the second signal is used for controlling the switch module to be in an on state;
and the power output module is respectively connected with the power input module, the switch module, the control module and the load, and supplies power to the control module and the load by utilizing the first power supply or the second power supply.
Optionally, the control module includes:
the first end of the impedance unit is respectively connected with the power input module and the switch module and is used for being connected with the external power supply;
the key unit is connected with the second end of the impedance unit and used for grounding the second end of the impedance unit and generating a power supply signal when being pressed;
the main control chip is connected with the key unit and used for providing a third signal when the external power supply input is not detected and the power supply signal is detected;
and the holding unit is respectively connected with the main control chip and the second end of the impedance unit and is used for grounding the second end when the third signal is received.
Optionally, the key unit includes;
the first end of the key is grounded, the second end of the key is connected with the second end of the impedance unit, and the first end is communicated with the second end when the key is pressed;
the input end of the first voltage division unit is connected with the power output module, the output end of the first voltage division unit is connected with the main control chip, and the voltage division end of the first voltage division unit is connected with the second end of the key.
Optionally, the holding unit includes:
and the collector of the triode is connected with the second end of the impedance unit, the emitter of the triode is grounded, and the base of the triode is connected with the main control chip and is used for accessing the third signal.
Optionally, the main control chip is further connected to the load, and is configured to control the load to operate when the power supply signal is received.
Optionally, the switch module includes:
and the grid electrode of the MOS tube is connected with the control module, the source electrode of the MOS tube is connected with the capacitance module, the drain electrode of the MOS tube is connected with the power output module, and the grid electrode of the MOS tube is connected with the source electrode of the MOS tube through a resistor.
Optionally, the power output module includes:
the voltage boosting unit is respectively connected with the power input module, the switch module and the load, and is used for boosting the first power supply or the second power supply to obtain a third power supply and supplying power to the load by using the third power supply;
and the first voltage reduction unit is respectively connected with the voltage boosting unit and the control module and is used for carrying out voltage reduction on the third power supply to obtain a fourth power supply and supplying power to the control module by utilizing the fourth power supply.
Optionally, the power output module further includes:
and the output end of the second voltage division unit is grounded, the voltage division end of the second voltage division unit is connected with the control module, and the input end of the second voltage division unit is connected with the voltage boosting unit and used for being connected to the third power supply.
Optionally, the power input module includes:
the power supply access end is used for accessing an external power supply;
and the second voltage reduction unit is respectively connected with the power supply access end, the capacitor module and the power supply output module and used for reducing the external power supply to obtain a fifth power supply, and the fifth power supply is used for charging the capacitor module and providing an input power supply for the power supply output module.
In order to achieve the above object, the present invention further provides a power consumption device, which includes the power supply circuit.
The utility model discloses in, through setting up the power input module, the electric capacity module, the switch module, control module and power output module constitute supply circuit, utilize the electric capacity module as the energy storage component in the equipment, and when the power input module inserts external power source, charge, when the power input module does not insert external power source, at the switch module, discharge under control module's control, supply power for equipment through the power output module, thereby realize accomplishing predetermined action in the condition of equipment outage, spare battery in the equipment has been cancelled, the equipment cost is reduced, make equipment more energy-conserving, the environmental protection, the low carbon.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a block diagram of an embodiment of a power supply circuit according to the present invention;
fig. 2 is a block diagram of another embodiment of the power supply circuit of the present invention;
fig. 3 is a schematic circuit diagram of an embodiment of the power supply circuit of the present invention;
fig. 4 is a block diagram of a power supply circuit according to another embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name(s) | Reference numerals | Name (R) | |
| 1 | |
405 | First |
|
| 10 | |
50 | |
|
| 101 | Power |
501 | |
|
| 102 | Second |
502 | First |
|
| 20 | |
503 | Second |
|
| 30 | |
2 | Load(s) | |
| 40 | Control module | V1～V2 | First to |
|
| 401 | Impedance unit | VCC | |
|
| 402 | Key unit | | Triode transistor | |
| 403 | Master control chip | | MOS tube | |
| 404 | Holding unit | A | Push-button |
The realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a block diagram of a power supply circuit according to an embodiment of the present invention. The utility model provides an implementation mode of supply circuit.
As shown in fig. 1, in an embodiment, the power supply circuit 1 includes: a power input module 10 for converting an accessed external power into a first power; a capacitor module 20 connected to the power input module 10 and charged by a first power source; the switch module 30 is connected with the capacitor module 20, and when the switch module 30 is in a conducting state, the second power supply is provided by utilizing the discharge of the capacitor module 20; a control module 40 connected to the power input module 10 and the switch module 30, for outputting a first signal to the switch module 30 when detecting an external power input; and is further configured to output a second signal to the switch module 30 when the external power input is not detected and the power supply signal is detected; the first signal is used to control the switch module 30 to be in the off state, and the second signal is used to control the switch module 30 to be in the on state; and the power output module 50 is respectively connected with the power input module 10, the switch module 20, the control module 40 and the load 2, and supplies power to the control module 40 and the load 2 by using a first power supply or a second power supply.
The capacitive module 20 may comprise one or more capacitive elements, for example the capacitive module 20 may consist of a super capacitor. The charging and discharging times of the super capacitor can reach 50 ten thousand, and the super capacitor can be normally used in the service life of the equipment without replacement.
The control module 40 controls the on/off of the switch module 30 according to whether there is an external power input or a power supply signal, and further controls the charging/discharging of the capacitor module 20. Wherein, the external power supply can be the power supply provided by the commercial power or other power adapters. When there is an external power input, the apparatus including the power supply circuit 1 is in a power-on state. When the external power is input, the switch module 30 is in the off state, the capacitor module 20 charges the power output by the power input module 10, and the power of the load 2 is derived from the power output by the power input module 10. In the absence of an external power input, the device comprising the power supply circuit 1 is in a powered-on state. At this time, if the device needs power, the amount of power stored in the capacitor module 20 can be used.
The load 2 may be an electrical component in the device. Taking the device containing the power supply circuit as an example of an intelligent toilet, the load 2 may be a flushing mechanism, which may include a siphon pulse valve and a flush pulse valve, which may be controlled by the control module 40. When the external power supply is input, if the input of the power supply signal is detected, the control module 40, the siphon pulse valve and the flushing pulse valve are powered by the external power supply, and the control module 40 directly controls the siphon pulse valve and the flushing pulse valve to flush water. When no external power supply is input, if the input of a power supply signal is detected, the control module 40 firstly controls the switch module 30 to be conducted, and then controls the siphon pulse valve and the flushing pulse valve to flush.
The power supply signal can be triggered by user operation, and when the user needs to use power (such as flushing), the power supply signal can be input through an interaction assembly preset on the operation equipment. Moreover, since the control module 40 also needs power during operation, the switch module 30 can be briefly controlled to be turned on when the interactive component is operated without an external power source, so that the capacitor module 20 supplies power to the load 2 and the control module 40. After the power-on, the control module 40 outputs a second signal to keep the switch module 30 on and control the operation of the load 2. After the load 2 completes the predetermined operation, the switch module 30 is controlled to be turned off.
In this embodiment, the power supply circuit 1 includes a power input module 10, a capacitor module 20, a switch module 30, a control module 40 and a power output module 50, the capacitor module 20 is used as an energy storage element in the device, and when the power input module 10 accesses an external power supply, charging is performed, when the power input module 10 does not access the external power supply, discharging is performed under the control of the switch module 30 and the control module 40, power is supplied to the device through the power output module 50, thereby realizing that a predetermined action is completed under the condition of power failure of the device, a standby battery in the device is cancelled, the device cost is reduced, so that the device is more energy-saving, environment-friendly and low-carbon.
Referring to fig. 2, fig. 2 is a block diagram of another embodiment of the power supply circuit of the present invention. In one embodiment, the control module 40 may include: the first end of the impedance unit 401 is connected to the power input module 10 and the switch module 30, respectively, and is used for accessing an external power supply; a key unit 402 connected to the second end of the impedance unit 401, for grounding the second end of the impedance unit 401 and generating a power supply signal when being pressed; the main control chip 403 is connected to the key unit 402, and configured to provide a third signal when the external power input is not detected and a power supply signal is detected; and a holding unit 404, respectively connected to the main control chip 403 and the second end of the impedance unit 402, for grounding the second end when receiving the third signal.
The impedance unit 401 may be composed of one or more resistance elements, for example, the impedance unit 401 may include a resistor. The first terminal of the impedance unit 401 is connected to the control terminal of the switch module 30, so that when the external power is present, the external power is applied to the control terminal of the switch module 30, and the external power can be used as the first signal.
The switch module 30 is usually controlled by two opposite signals, and in case of an external power source as the first signal, the first signal can be understood as a high level signal, and thus the second signal needs to be a low level signal. To make the first terminal of the impedance unit 401 low, the second terminal of the impedance unit 401 may be grounded. The key unit 402 and the holding unit 404 are both provided with a ground terminal, and the ground terminal can be communicated with the second end of the impedance unit 401 when the key unit 402 is pressed. The holding unit 404 may be controlled by the main control chip 403 to connect the ground terminal to the second terminal of the impedance unit 401.
Due to the impedance unit 401, in the case of external power input, even if the second terminal of the impedance unit 401 is grounded, the signal received by the control terminal of the switch module 30 is still at a high level, thereby ensuring that the switch module 30 is not turned on after the key unit 402 is pressed.
The main control chip 403 is also connected to a load 2, and continuing to take the intelligent toilet as an example, the load 2 may be connected to a driving circuit of a siphon pulse valve and a flushing pulse valve. When the key unit 402 is pressed, a power supply signal is also transmitted to the main control chip 403, and after receiving the power supply signal, the main control chip 403 controls the actuation of the siphon pulse valve and the flushing pulse valve. Meanwhile, if the smart toilet is in a power-off condition, a third signal is transmitted to the holding unit 404. The drive circuits of the siphon pulse valve and the flushing pulse valve are well known in the art, and the detailed description of the embodiment is omitted here.
The main control chip 403 can determine whether the intelligent toilet is in a power-off state through recognizing the power supply signal. Specifically, when the intelligent toilet is not powered off, the main control chip 403 is always in a power-on state, and if the user presses the key unit 402, the main control chip 403 receives a power supply signal. When the intelligent toilet is in a power-off condition, a user presses the key unit 402 to transmit a power supply signal to the main control chip 403, and at the same time, the switch module 30 is turned on, the main control chip 403 is powered on, and at this time, the main control chip 403 immediately receives the power supply signal. Therefore, the main control chip 403 can determine whether the intelligent toilet is in a power-off condition by determining the interval between the time of receiving the power supply signal and the power-on time.
Referring to fig. 3, fig. 3 is a schematic circuit diagram of an embodiment of the power supply circuit of the present invention. In one embodiment, the key unit 403 may include; the first end of the key A is grounded, the second end of the key A is connected with the second end of the impedance unit 401, and when the key A is pressed, the first end is communicated with the second end; the input end of the first voltage division unit 405 is connected with the power output module 50, the output end of the first voltage division unit 405 is connected with the main control chip 403, and the voltage division end of the first voltage division unit 405 is connected with the second end of the key a.
The first voltage dividing unit 405 may include a plurality of resistors, for example, the first voltage dividing unit 405 is formed by connecting two resistors in series, a voltage dividing end of the first voltage dividing unit 405 is a connection point of the two resistors, and an output end and an input end of the first voltage dividing unit 405 are the other ends of the two resistors. When the key a is not pressed, the output end of the first voltage division unit 405 is at a high level, and when the key a is pressed, the output end of the first voltage division unit 405 is at a low level, and when the main control chip 403 receives the low level, it determines that the power supply signal is received. Wherein, in order to avoid the mutual interference of the two loops connected with the second end of the key A, the two loops are provided with diodes to prevent series flow.
Referring to fig. 3, in an embodiment, the holding unit 404 may include a transistor T, a collector of which is connected to the second terminal of the impedance unit 401, an emitter of which is grounded, and a base of which is connected to the main control chip 403 for receiving the third signal.
The third signal is a high level signal, the base electrode of the triode T is connected with the emitter electrode through a resistor, when the voltage of the base electrode is higher than a certain voltage, the second end of the triode T conduction impedance unit 401 is grounded, and the switch module 30 is turned on under the condition that the external power supply is not accessed.
Referring to fig. 3, in an embodiment, the switch module 30 may include a MOS transistor Q, a gate connected to the control module 40, a source connected to the capacitor module 20, a drain connected to the power output module 50, and a resistor connected between the gate and the source.
The gate of the MOS transistor Q is connected to the first end of the impedance unit 401, that is, when an external power supply is turned on, the voltage of the gate of the MOS transistor Q is the external power supply voltage V1, and the MOS transistor is in an off state. When the second terminal of the impedance unit 401 is grounded after the external power supply is turned off, the gate of the MOS transistor Q is at a low level, the MOS transistor Q is turned on, and the capacitor module 20 starts to discharge. Meanwhile, in order to prevent the gate of the MOS transistor Q from being transmitted to the power input module 10 when the capacitor module 20 discharges, a diode is disposed between the gate of the MOS transistor Q and the external power input terminal.
Referring to fig. 4, fig. 4 is a block diagram of a power supply circuit according to another embodiment of the present invention. In an embodiment, the power output module 50 may include a voltage boosting unit 501, which is respectively connected to the power input module 10, the switch module 30 and the load 2, and is configured to boost the voltage of the first power source or the second power source to obtain a third power source, and supply power to the load 2 by using the third power source; and the first voltage reduction unit 502 is respectively connected with the voltage boost unit 501 and the control module 40, and is used for reducing the voltage of the third power supply to obtain a fourth power supply and supplying power to the control module 40 by using the fourth power supply.
The voltage of the capacitor module 20 cannot be too high, otherwise, the capacitor module 20 cannot be used when the voltage is lower than that of the load 2, which may cause a large-capacity super capacitor to be required to implement the same number of operations of the load 2, and increase the equipment cost. Therefore, the voltage of the capacitor module 20 in this embodiment is smaller than the operating voltage VCC of the load 20. For example, if the operating voltage of the load 2 is 12V or 15V, the voltage of the capacitor module 20 is 5V or 5.4V. Accordingly, in order to normally supply power to load 2, it is necessary to boost the voltage output from capacitor module 20 by booster 501 and supply the boosted voltage to load 2. Meanwhile, since the working voltage of the main control chip 403 is low, the first voltage-reducing unit 502 needs to be set to reduce the voltage boosted by the voltage-boosting unit 501, and then the voltage is provided to the main control chip 403.
Referring to fig. 3, the voltage boosting unit 501 may be formed by a voltage boosting chip, and the voltage boosting is performed on the switching MOS transistor Q or the power transmitted by the power input module 10 by using an element such as an inductor. The first voltage-reducing unit 502 may be formed by a voltage-reducing chip, and the voltage after voltage reduction meets the voltage requirement of each unit in the main control module 40, such as 5V. The stepped-down voltage is a second voltage V2, and the second voltage V2 may be a working voltage of the main control chip 403 or an input voltage of the input terminal of the first voltage division unit 405.
Referring to fig. 4, in an embodiment, the power output module 50 further includes: and the output end of the second voltage division unit is grounded, the voltage division end of the second voltage division unit is connected with the control module, and the input end of the second voltage division unit is connected with the voltage boosting unit and is used for being connected to a third power supply.
Referring to fig. 3, the second voltage dividing unit 503 may include a plurality of resistors, for example, the second voltage dividing unit 503 is formed by connecting two resistors in series, a voltage dividing end of the second voltage dividing unit 503 is a connection point of the two resistors, and an output end and an input end of the second voltage dividing unit 503 are the other ends of the two resistors. The second voltage dividing unit 503 is mainly configured to collect the output voltage of the voltage boosting unit 501 to determine whether the power supply of the load 2 is normal, so as to effectively control the operation of the load 2.
Referring to fig. 4, the power input module 10 may include: a power supply access terminal 101 for accessing an external power supply; and the second voltage reduction unit 102 is connected with the power supply access end, the capacitor module and the power supply output module respectively, and is used for reducing an external power supply to obtain a fifth power supply, charging the capacitor module by using the fifth power supply, and providing an input power supply for the power supply output module.
Referring to fig. 3, since the voltage of the capacitor module 20 is low, in order to avoid breakdown of the capacitor module, a voltage reduction process is required for the connected external power source. And a power input terminal 101 for connecting with an external power supply terminal to input an external power supply. The output end of the second voltage-reducing unit 102 is connected to the capacitor module 20 and the voltage-increasing unit 501, respectively. The second voltage step-down unit 102 is also composed of a voltage step-down chip, and performs voltage step-down processing on the external power supply voltage V1. In order to prevent the capacitor module 20 from reversely flowing current to the second voltage-reducing unit 102 when discharging, a diode is disposed between the output terminal of the second voltage-reducing unit 102 and the capacitor module 20.
In order to achieve the above object, the present invention further provides an electrical device, which includes the power supply circuit as described above. This consumer can be intelligent closestool, and intelligent closestool is inside to be equipped with the bath structure, like siphon pulse valve and wash out the pulse valve. The power supply circuit is connected with the flushing mechanism and used for supplying power to the flushing mechanism. The specific structure of the circuit refers to the above embodiments, and since the apparatus can adopt the technical solutions of all the above embodiments, the apparatus at least has the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
The above is only the preferred embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings of the present invention, or directly or indirectly applied to other related technical fields, are included in the same way in the patent protection scope of the present invention.
Claims (10)
1. A power supply circuit, characterized in that the power supply circuit comprises:
the power supply input module is used for converting an accessed external power supply into a first power supply;
the capacitor module is connected with the power input module and is charged by the first power supply;
the switch module is connected with the capacitor module and provides a second power supply by utilizing the discharge of the capacitor module when the switch module is in a conducting state;
the control module is connected with the power input module and the switch module and used for outputting a first signal to the switch module when the external power input is detected; the power supply module is also used for outputting a second signal to the switch module when the external power supply input is not detected and a power supply signal is detected; the first signal is used for controlling the switch module to be in an off state, and the second signal is used for controlling the switch module to be in an on state;
and the power output module is respectively connected with the power input module, the switch module, the control module and the load, and supplies power to the control module and the load by utilizing the first power supply or the second power supply.
2. The power supply circuit of claim 1, wherein the control module comprises:
the first end of the impedance unit is respectively connected with the power input module and the switch module and is used for being connected with the external power supply;
the key unit is connected with the second end of the impedance unit and used for grounding the second end of the impedance unit and generating a power supply signal when being pressed;
the main control chip is connected with the key unit and used for providing a third signal when the external power supply input is not detected and the power supply signal is detected;
and the holding unit is respectively connected with the main control chip and the second end of the impedance unit and is used for grounding the second end when the third signal is received.
3. The power supply circuit according to claim 2, wherein the key unit includes;
the first end of the key is grounded, the second end of the key is connected with the second end of the impedance unit, and the first end is communicated with the second end when the key is pressed;
the input end of the first voltage division unit is connected with the power output module, the output end of the first voltage division unit is connected with the main control chip, and the voltage division end of the first voltage division unit is connected with the second end of the key.
4. The power supply circuit of claim 2, wherein the holding unit comprises:
and the collector of the triode is connected with the second end of the impedance unit, the emitter of the triode is grounded, and the base of the triode is connected with the main control chip and is used for accessing the third signal.
5. The power supply circuit of claim 2, wherein the main control chip is further connected to the load, and configured to control the load to operate when the power supply signal is received.
6. The power supply circuit of any one of claims 1-5 wherein the switching module comprises:
and the grid electrode of the MOS tube is connected with the control module, the source electrode of the MOS tube is connected with the capacitance module, the drain electrode of the MOS tube is connected with the power output module, and the grid electrode of the MOS tube is connected with the source electrode of the MOS tube through a resistor.
7. The power supply circuit of any one of claims 1-5 wherein the power output module comprises:
the voltage boosting unit is respectively connected with the power input module, the switch module and the load, and is used for boosting the first power supply or the second power supply to obtain a third power supply and supplying power to the load by using the third power supply;
and the first voltage reduction unit is respectively connected with the voltage boosting unit and the control module and used for carrying out voltage reduction on the third power supply to obtain a fourth power supply and supplying power to the control module by utilizing the fourth power supply.
8. The power supply circuit of claim 7 wherein said power output module further comprises:
and the output end of the second voltage division unit is grounded, the voltage division end of the second voltage division unit is connected with the control module, and the input end of the second voltage division unit is connected with the voltage boosting unit and used for being connected to the third power supply.
9. The power supply circuit of any one of claims 1-5 wherein the power input module comprises:
the power supply access end is used for accessing an external power supply;
and the second voltage reduction unit is respectively connected with the power supply access end, the capacitor module and the power supply output module, and is used for reducing the external power supply to obtain a fifth power supply, and utilizing the fifth power supply to charge the capacitor module and provide an input power supply for the power supply output module.
10. An electrical consumer, characterized in that the electrical consumer comprises a supply circuit according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221579521.3U CN217769594U (en) | 2022-06-22 | 2022-06-22 | Power supply circuit and electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221579521.3U CN217769594U (en) | 2022-06-22 | 2022-06-22 | Power supply circuit and electric equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217769594U true CN217769594U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221579521.3U Active CN217769594U (en) | 2022-06-22 | 2022-06-22 | Power supply circuit and electric equipment |
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| Country | Link |
|---|---|
| CN (1) | CN217769594U (en) |
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2022
- 2022-06-22 CN CN202221579521.3U patent/CN217769594U/en active Active
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