CN215528689U - Intelligent closestool treasured power supply circuit that charges - Google Patents
Intelligent closestool treasured power supply circuit that charges Download PDFInfo
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- CN215528689U CN215528689U CN202120718700.XU CN202120718700U CN215528689U CN 215528689 U CN215528689 U CN 215528689U CN 202120718700 U CN202120718700 U CN 202120718700U CN 215528689 U CN215528689 U CN 215528689U
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- mos transistor
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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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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The utility model discloses an intelligent closestool power supply circuit, which comprises a power supply interface, a first switch circuit, a second switch circuit, a power supply holding circuit, a switch power supply circuit and a voltage conversion circuit, wherein the power supply interface is connected with the first switch circuit; one end of the charger baby interface is electrically connected with the charger baby, and the other end of the charger baby interface supplies power to a load through the first switch circuit; the input end of the switch power supply circuit is used for accessing commercial power, the output end of the switch power supply circuit is respectively electrically connected with the first switch circuit, the second switch circuit and the voltage conversion circuit, the switch power supply circuit is used for controlling the on-off of the first switch circuit and the second switch circuit, and the switch power supply circuit supplies power to the load through the voltage conversion circuit. By adopting the utility model, the dummy load is closed when the mains supply exists, the standby energy consumption is low, the dummy load is opened when the power fails, the charge pal awakening state is kept, an awakening circuit and a voltage boosting plate are not needed, the charge pal is directly connected, and the utility model has the advantages of simple circuit and lower voltage drop.
Description
Technical Field
The utility model relates to the field of bathrooms, in particular to a power supply circuit for an intelligent closestool charger.
Background
The intelligent products are more and more popular, people have higher and higher requirements on the intelligent products, and the products are also correspondingly improved and advanced to meet the requirements on the quality of life. The existing toilet seat ring charger power-off flushing scheme is that charger 5V is boosted to 10-12V and isolated by a diode to a power panel, and then the power panel is waken up after power failure through a wakening-up circuit.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing an intelligent power supply circuit for a toilet charger, which can be directly connected with the charger without an awakening circuit and a voltage-boosting plate and has the advantages of simple circuit and low voltage drop.
In order to solve the technical problem, the utility model provides an intelligent closestool power supply circuit, which comprises a power supply interface, a first switch circuit, a second switch circuit, a power supply holding circuit, a switch power supply circuit and a voltage conversion circuit, wherein the power supply interface is connected with the first switch circuit; one end of the charger baby interface is electrically connected with the charger baby, and the other end of the charger baby interface supplies power to a load through the first switch circuit; the input end of the switch power supply circuit is used for accessing commercial power, the output end of the switch power supply circuit is respectively electrically connected with the first switch circuit, the second switch circuit and the voltage conversion circuit, the switch power supply circuit is used for controlling the on-off of the first switch circuit and the second switch circuit, and the switch power supply circuit supplies power to the load through the voltage conversion circuit.
Preferably, the first switch circuit includes a first MOS transistor and a first diode, a gate of the first MOS transistor is electrically connected to the second switch circuit, a source of the first MOS transistor is electrically connected to the gate, a source of the first MOS transistor is electrically connected to the charger interface, a drain of the first MOS transistor is electrically connected to the second switch circuit through the power supply holding circuit, a drain of the first MOS transistor is further electrically connected to a load, and a source and a drain of the first MOS transistor are electrically connected to the first diode.
Preferably, the second switch circuit includes a second MOS transistor, a first resistor and a second resistor, the gate of the second MOS transistor is electrically connected to the switch power supply circuit through the first resistor, the gate and the drain of the second MOS transistor are electrically connected to the second resistor, the drain of the second MOS transistor is grounded, the source of the second MOS transistor is electrically connected to the drain of the first MOS transistor through the power supply holding circuit, and the gate of the second MOS transistor is electrically connected to the gate of the first MOS transistor.
Preferably, the intelligent closestool treasured power supply circuit that charges still includes overcurrent protection circuit, overcurrent protection circuit's one end with treasured interface electric connection charges, the other end with the source electric connection of first MOS pipe.
Preferably, the overcurrent protection circuit is a fuse.
Preferably, the intelligent closestool treasured power supply circuit that charges still includes overvoltage crowbar, the source and the grid of first MOS pipe pass through overvoltage crowbar electric connection.
Preferably, the overvoltage protection circuit is a zener diode.
Preferably, the intelligent closestool treasured power supply circuit that charges still includes unidirectional circuit, unidirectional circuit includes the second diode, the second diode with overcurrent protection circuit connects in parallel.
Preferably, the intelligent closestool treasured power supply circuit that charges still includes the third diode, switching power supply circuit's output passes through the third diode with first resistance electric connection.
Preferably, the intelligent closestool treasured power supply circuit that charges still includes filter circuit, filter circuit with it is parallelly connected to charge precious interface.
The beneficial effects of the implementation of the utility model are as follows:
when not having a power failure (the commercial power is normal), promptly switching power supply circuit's output is the high level, this moment first switching circuit and second switching circuit are the off-state, and the treasured that charges can't give the load power supply, when having a power failure (no commercial power), promptly switching power supply circuit's output is the low level, this moment first switching circuit and second switching circuit are the on-state, and the treasured that charges begins to supply power for the load, and passes through power supply holding circuit keeps the precious power supply state that charges. The power supply holding circuit adopted by the utility model is a resistor, is equivalent to a dummy load, the dummy load is closed when commercial power exists, the standby energy consumption is low, the dummy load is opened when power fails, and the charger baby is kept in an awakening state, so that the charger baby is directly connected into the charger baby without an awakening circuit and a boosting board, and has the advantages of simple circuit and lower voltage drop.
Drawings
FIG. 1 is a schematic block diagram of an intelligent power supply circuit for a toilet charger provided by the present invention;
FIG. 2 is a diagram of a first embodiment of a power supply circuit for an intelligent toilet charger provided by the utility model;
FIG. 3 is a diagram of a second embodiment of the power supply circuit for the intelligent toilet charger provided by the utility model;
fig. 4 is a diagram of a third embodiment of the intelligent toilet charger power supply circuit provided by the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the utility model is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the utility model.
As shown in fig. 1, the utility model provides an intelligent power supply circuit for a toilet charger, which comprises a charger interface 1, a first switch circuit 2, a second switch circuit 3, a power supply holding circuit 4, a switch power supply circuit 5 and a voltage conversion circuit 6; one end of the charger baby interface 1 is electrically connected with the charger baby, and the other end of the charger baby interface supplies power to a load (V port) through the first switch circuit 2; the input end of the switch power supply circuit 5 is used for accessing a mains supply, the output end of the switch power supply circuit 5 is respectively electrically connected with the first switch circuit 2, the second switch circuit 3 and the voltage conversion circuit 6, the switch power supply circuit 5 is used for controlling the on-off of the first switch circuit 2 and the second switch circuit 3, and the switch power supply circuit 5 supplies power to the load (V port) through the voltage conversion circuit 6.
Firstly, after alternating current power supplies such as commercial power supplies are converted into direct current voltage through the switching power supply circuit, working voltage required by a load on the intelligent closestool is obtained through the voltage conversion circuit; in addition, the charger baby supplies power to each load on the intelligent closestool through the charger baby interface 1 and the first switch circuit 2 in sequence; wherein, switching power supply circuit's input respectively with first switching circuit 2 and 3 electric connection of second switching circuit, when not having a power failure (the commercial power is normal), promptly switching power supply circuit 5's output is the high level, this moment first switching circuit 2 and second switching circuit 3 are the off-state, and the treasured that charges can't give the load power supply, when having a power failure (no commercial power), promptly switching power supply circuit 5's output is the low level, this moment first switching circuit 2 and second switching circuit 3 are the on-state, and the treasured that charges begins to supply power for the load, and pass through power supply holding circuit keeps the precious power supply state that charges. The power supply holding circuit adopted by the utility model is a resistor and is equivalent to a dummy load. By adopting the power supply circuit scheme of the charger, the dummy load is turned off when the mains supply exists, the standby energy consumption is low, the dummy load is turned on when the power fails, and the charger is kept in an awakening state.
As shown in fig. 2, preferably, the first switch circuit 2 includes a first MOS transistor 21 and a first diode 22, a gate of the first MOS transistor 21 is electrically connected to the second switch circuit 3, a source and a gate of the first MOS transistor 21 are electrically connected, a source of the first MOS transistor 21 is electrically connected to the charger interface 1, a drain of the first MOS transistor 21 is electrically connected to the second switch circuit 3 through the power supply holding circuit 4, a drain of the first MOS transistor 21 is also electrically connected to a load (V port), and a source and a drain of the first MOS transistor 21 are electrically connected to the first diode 22.
It should be noted that, when power failure does not occur (the commercial power is normal), that is, the output end of the switching power supply circuit 5 is at a high level, at this time, the second switching circuit 3 is in a cut-off state, the first switching tube 21 is in a cut-off state, and the charger baby cannot supply power to the load, and when power failure occurs (no commercial power), that is, the output end of the switching power supply circuit 5 is at a low level, at this time, the first switching tube 21 and the second switching circuit 3 are both in a conducting state, and the charger baby starts to supply power to the load, and the power supply holding circuit holds the power supply state of the charger baby. In addition, the first diode is used for shunting, and when a loop is short-circuited, the first diode can bear larger current so as to ensure the safe use of the first switch tube.
As shown in fig. 3, preferably, the second switch circuit 3 includes a second MOS transistor 31, a first resistor 32 and a second resistor 33, a gate of the second MOS transistor 31 is electrically connected to the switch power supply circuit 5 through the first resistor 32, a gate and a drain of the second MOS transistor 31 are electrically connected to the second resistor 33, a drain of the second MOS transistor 31 is grounded, a source of the second MOS transistor 31 is electrically connected to a drain of the first MOS transistor 21 through the power supply holding circuit 4, and a gate of the second MOS transistor 31 is further electrically connected to a gate of the first MOS transistor 21.
It should be noted that, when power failure does not occur (the commercial power is normal), that is, the output terminal of the switching power supply circuit 5 is at a high level, at this time, the second switching tube 31 is in an off state, the first switching tube 21 is in an off state, and the charger baby cannot supply power to the load, and when power failure occurs (no commercial power), that is, the output terminal of the switching power supply circuit 5 is at a low level, at this time, the first switching tube 21 and the second switching tube 3 are both in an on state, and the charger baby starts to supply power to the load, and the power supply holding circuit holds the power supply state of the charger baby. In addition, the first resistor 32 is used for limiting current, so that the two switching tubes are prevented from being burned out by large current.
In addition, the MOS transistors adopted by the utility model are all PMOS transistors, but are not limited to the PMOS transistors.
As shown in fig. 4, preferably, the intelligent toilet power supply circuit further includes an overcurrent protection circuit 7, one end of the overcurrent protection circuit 7 is electrically connected to the charger baby interface 1, and the other end is electrically connected to the source of the first MOS transistor 21. Further, the overcurrent protection circuit 7 is a fuse.
It should be noted that the overcurrent protection circuit 7 is used to avoid burning out components in a short circuit situation.
Preferably, the intelligent toilet power supply circuit further includes an overvoltage protection circuit 8, and the source and the gate of the first MOS transistor 21 are electrically connected to the overvoltage protection circuit 8. Further, the overvoltage protection circuit 8 is a zener diode.
It should be noted that, according to the utility model, through the overvoltage protection circuit, the load can be prevented from being burned out by the too high voltage of the charger, and when the voltage exceeds 6V (but is not limited thereto), the circuit of the charger is disconnected, the load is not supplied with power, and the components and parts are prevented from being burned out.
Preferably, the power supply circuit for the intelligent toilet charger further comprises a one-way circuit 9, wherein the one-way circuit 9 comprises a second diode, and the second diode is connected in parallel with the overcurrent protection circuit 7.
It should be noted that, when the number of times of fusing of the fuse reaches the limit, the overcurrent protection circuit does not function, and the second diode can play a role in limiting current, so as to prevent the switch tube from being burnt out by a large current.
Preferably, the intelligent toilet power supply circuit further includes a third diode 10, and the output terminal of the switching power supply circuit 5 is electrically connected to the first resistor 32 through the third diode 10.
Further, precious power supply circuit that charges of intelligent closestool still includes filter circuit 11, filter circuit 11 with precious interface 1 connects in parallel charges.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.
Claims (10)
1. An intelligent closestool power supply circuit for a charger is characterized by comprising a charger interface, a first switch circuit, a second switch circuit, a power supply holding circuit, a switch power supply circuit and a voltage conversion circuit;
one end of the charger baby interface is electrically connected with the charger baby, and the other end of the charger baby interface supplies power to a load through the first switch circuit;
the input end of the switch power supply circuit is used for accessing commercial power, the output end of the switch power supply circuit is respectively electrically connected with the first switch circuit, the second switch circuit and the voltage conversion circuit, the switch power supply circuit is used for controlling the on-off of the first switch circuit and the second switch circuit, and the switch power supply circuit supplies power to the load through the voltage conversion circuit.
2. The intelligent power supply circuit for a charging station of a toilet according to claim 1, wherein the first switch circuit comprises a first MOS transistor and a first diode, a gate of the first MOS transistor is electrically connected to the second switch circuit, a source and a gate of the first MOS transistor are electrically connected, a source of the first MOS transistor is electrically connected to the charging station interface, a drain of the first MOS transistor is electrically connected to the second switch circuit through the power supply maintaining circuit, a drain of the first MOS transistor is further electrically connected to a load, and a source and a drain of the first MOS transistor are electrically connected through the first diode.
3. The intelligent power supply circuit for a toilet charger according to claim 2, wherein the second switch circuit comprises a second MOS transistor, a first resistor and a second resistor, the gate of the second MOS transistor is electrically connected to the switch power supply circuit through the first resistor, the gate and the drain of the second MOS transistor are electrically connected through the second resistor, the drain of the second MOS transistor is grounded, the source of the second MOS transistor is electrically connected to the drain of the first MOS transistor through the power supply maintaining circuit, and the gate of the second MOS transistor is further electrically connected to the gate of the first MOS transistor.
4. The intelligent power supply circuit for the charging pal of the toilet bowl as claimed in claim 3, further comprising an overcurrent protection circuit, wherein one end of the overcurrent protection circuit is electrically connected with the interface of the charging pal, and the other end of the overcurrent protection circuit is electrically connected with the source electrode of the first MOS transistor.
5. The intelligent power supply circuit for the toilet charger recited in claim 4, wherein the over-current protection circuit is a fuse.
6. The intelligent power supply circuit for the toilet charger according to claim 4, further comprising an overvoltage protection circuit, wherein the source and the gate of the first MOS transistor are electrically connected through the overvoltage protection circuit.
7. The intelligent power supply circuit for the toilet charger according to claim 6, wherein the overvoltage protection circuit is a zener diode.
8. The intelligent power supply circuit for a toilet bowl charge pal of claim 6, further comprising a unidirectional circuit comprising a second diode connected in parallel with the over-current protection circuit.
9. The intelligent power supply circuit for a toilet bowl charging device according to claim 8, further comprising a third diode, wherein the output terminal of the switching power supply circuit is electrically connected to the first resistor through the third diode.
10. The intelligent toilet power supply circuit according to claim 9, further comprising a filter circuit, wherein the filter circuit is connected in parallel with the charger baby interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120718700.XU CN215528689U (en) | 2021-04-08 | 2021-04-08 | Intelligent closestool treasured power supply circuit that charges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120718700.XU CN215528689U (en) | 2021-04-08 | 2021-04-08 | Intelligent closestool treasured power supply circuit that charges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215528689U true CN215528689U (en) | 2022-01-14 |
Family
ID=79801717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120718700.XU Active CN215528689U (en) | 2021-04-08 | 2021-04-08 | Intelligent closestool treasured power supply circuit that charges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215528689U (en) |
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2021
- 2021-04-08 CN CN202120718700.XU patent/CN215528689U/en active Active
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