CN217545616U - Self-locking circuit of super capacitor - Google Patents
Self-locking circuit of super capacitor Download PDFInfo
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- CN217545616U CN217545616U CN202220209407.5U CN202220209407U CN217545616U CN 217545616 U CN217545616 U CN 217545616U CN 202220209407 U CN202220209407 U CN 202220209407U CN 217545616 U CN217545616 U CN 217545616U
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Abstract
The utility model discloses a super capacitor self-locking circuit, which comprises a first voltage detection module, a second voltage detection module, a super capacitor module, a first switch module, a second switch module, a power supply module and a control module; the first end of the first voltage detection module is electrically connected with the power supply module, the second ends of the first voltage detection module and the second voltage detection module and the control end of the first switch module are respectively electrically connected with the control module, the input end of the first switch module is electrically connected with the power supply module, the output end of the first switch module is electrically connected with the power supply end of the control module, and one end of the super capacitor module is electrically connected with the first end of the second voltage detection module and the power supply module and passes through the second switch module and the power supply end of the control module. Adopt the utility model discloses, can cut off super capacitor's power supply completely under the outage condition, not let the system consume stand-by power consumption.
Description
Technical Field
The utility model relates to a circuit field especially relates to a super capacitor self-locking circuit.
Background
The intelligent closestool is flushed by the switch of the pulse valve. And under the condition of power failure, the pulse valve is powered by the super capacitor to flush the excrement. The electric quantity of the super capacitor is relatively small, and if the system is in a standby state all the time, the electric quantity of the super capacitor can be consumed quickly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a super capacitor self-locking circuit is provided, can cut off super capacitor's power supply completely under the outage condition, not let the system consume stand-by power consumption.
In order to solve the technical problem, the utility model provides a super capacitor self-locking circuit, which comprises a first voltage detection module, a second voltage detection module, a super capacitor module, a first switch module, a second switch module, a power supply module and a control module; the first end of the first voltage detection module is electrically connected with the power supply module, the second ends of the first voltage detection module and the second voltage detection module and the control end of the first switch module are respectively electrically connected with the control module, the input end of the first switch module is electrically connected with the power supply module, the output end of the first switch module is electrically connected with the power end of the control module, one end of the super capacitor module is electrically connected with the first end of the second voltage detection module and the power supply module and passes through the second switch module and the power end of the control module, and the third ends of the first voltage detection module and the second voltage detection module and the other end of the super capacitor module are both grounded.
Preferably, the first switching module comprises a first switching tube unit and a second switching tube unit; the control end of the first switch tube unit is the control end of the first switch module, the output end of the first switch tube unit is grounded, the input end of the first switch tube unit is electrically connected with the control end of the second switch tube unit, and the input end and the output end of the second switch tube unit are respectively the input end and the output end of the first switch module.
Preferably, the first switch unit includes an NPN transistor and a first resistor; one end of the first resistor is a control end of the first switch tube unit, the other end of the first resistor is electrically connected with a base electrode of the NPN type triode, an emitter of the NPN type triode is an output end of the first switch tube unit, and a collector of the NPN type triode is an input end of the first switch tube unit.
Preferably, the second switching tube unit comprises an N-channel MOS tube, a second resistor and a first capacitor; the grid electrode of the N-channel MOS tube is the control end of the second switch tube unit, the source electrode of the N-channel MOS tube is the input end of the second switch tube unit, the drain electrode of the N-channel MOS tube is the output end of the second switch tube unit, the grid electrode and the source electrode of the N-channel MOS tube are electrically connected through the second resistor, and the drain electrode of the N-channel MOS tube is grounded through the first capacitor.
Preferably, the second switch module comprises a dial switch unit and a second capacitor; the input end of the dial switch unit is electrically connected with the super capacitor module and is grounded through the second capacitor, and the output end of the dial switch unit is electrically connected with the power end of the control module.
Preferably, the first voltage detection module comprises a first voltage-dividing resistor and a second voltage-dividing resistor; one end of the first voltage dividing resistor is a first end of the first voltage detection module, the other end of the first voltage dividing resistor is a second end of the first voltage detection module and is electrically connected with one end of the second voltage dividing resistor, and the other end of the second voltage dividing resistor is a third end of the first voltage detection module.
Preferably, the second voltage detection module comprises a third voltage dividing resistor and a fourth voltage dividing resistor; one end of the third voltage dividing resistor is the first end of the second voltage detecting module, the other end of the third voltage dividing resistor is the second end of the second voltage detecting module and is electrically connected with one end of the fourth voltage dividing resistor, and the other end of the fourth voltage dividing resistor is the third end of the second voltage detecting module.
Preferably, the super capacitor self-locking circuit further comprises a first current limiting module, one end of the first current limiting module is electrically connected to the power supply module, and the other end of the first current limiting module is electrically connected to the first end of the first voltage detection module and the input end of the first switch module.
Preferably, the super capacitor self-locking circuit further comprises a first diode module, one end of the first diode module is electrically connected with the power supply module through the first current limiting module, and the other end of the first diode module is electrically connected with the input end of the first switch module.
Preferably, the super capacitor self-locking circuit further comprises a second diode module, one end of the second diode module is electrically connected with the output end of the first switch module and is electrically connected with the super capacitor module through the second switch module, and the other end of the second diode module is electrically connected with the power end of the control module.
Implement the beneficial effects of the utility model reside in that:
the utility model comprises a first voltage detection module, a second voltage detection module, a super capacitor module, a first switch module, a second switch module, a power supply module and a control module; the first end of the first voltage detection module is electrically connected with the power supply module, the second ends of the first voltage detection module and the second voltage detection module and the control end of the first switch module are respectively electrically connected with the control module, the input end of the first switch module is electrically connected with the power supply module, the output end of the first switch module is electrically connected with the power end of the control module, one end of the super capacitor module is electrically connected with the first end of the second voltage detection module and the power supply module and is electrically connected with the power end of the control module through the second switch module, and the third ends of the first voltage detection module and the second voltage detection module and the other end of the super capacitor module are both grounded. By adopting the utility model, the power supply of the super capacitor can be completely cut off under the condition of power failure, and the system does not consume standby power consumption; the utility model discloses can effectively prolong super capacitor's operating time, super capacitor supplies power only when needs are washed just, need not wash just, and super capacitor is in the state of cutting off the power supply completely, effectively solves MCU's stand-by power consumption problem.
Drawings
Fig. 1 is a schematic block diagram of a super capacitor self-locking circuit provided by the present invention;
fig. 2 is a schematic circuit diagram of a control module provided by the present invention;
fig. 3 is a schematic block diagram of a first switch module provided by the present invention;
fig. 4 is a schematic circuit diagram of a first switching tube unit and a second switching tube unit provided by the present invention;
fig. 5 is a schematic circuit diagram of a second switch module provided by the present invention;
fig. 6 is a schematic circuit diagram of a first voltage detection module provided by the present invention;
fig. 7 is a schematic circuit diagram of a second voltage detection module provided by the present invention;
FIG. 8 is a functional block diagram of a first current limiting module provided by the present invention;
fig. 9 is a schematic block diagram of a first diode module provided by the present invention;
fig. 10 is a schematic block diagram of a second diode module provided by the present invention;
fig. 11 is a schematic circuit diagram of the self-locking circuit of the super capacitor provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside equidirectional wording that appears or will appear in the text only uses the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.
As shown in fig. 1, the utility model provides a super capacitor self-locking circuit, which comprises a first voltage detection module 1, a second voltage detection module 2, a super capacitor module 3, a first switch module 4, a second switch module 5, a power supply module 6 and a control module 7; the first end of the first voltage detection module 1 is electrically connected with the power supply module 6, the second ends of the first voltage detection module 1 and the second voltage detection module 2 and the control end of the first switch module 4 are respectively electrically connected with the control module 7, the input end of the first switch module 4 is electrically connected with the power supply module 6, the output end of the first switch module 4 is electrically connected with the power end of the control module 7, one end of the super capacitor module 3 is electrically connected with the first end of the second voltage detection module 2 and the power supply module 6 and is electrically connected with the power end of the control module 7 through the second switch module 5, and the third ends of the first voltage detection module 1 and the second voltage detection module 2 and the other end of the super capacitor module 3 are all grounded.
It should be noted that, as shown in fig. 2, the control module 7 is a single chip microcomputer U1, but is not limited thereto; the singlechip integrates various components such as an arithmetic unit, a controller, a memory, an input/output device and the like, and realizes various functions such as signal processing, data storage and the like. For example, an arithmetic unit includes a large number of comparison circuits, and can perform logical operation processing on a received signal instruction.
The utility model comprises a first voltage detection module, a second voltage detection module, a super capacitor module, a first switch module, a second switch module, a power supply module and a control module; the first end of the first voltage detection module is electrically connected with the power supply module, the second ends of the first voltage detection module and the second voltage detection module and the control end of the first switch module are respectively electrically connected with the control module, the input end of the first switch module is electrically connected with the power supply module, the output end of the first switch module is electrically connected with the power end of the control module, one end of the super capacitor module is electrically connected with the first end of the second voltage detection module and the power supply module and is electrically connected with the power end of the control module through the second switch module, and the third ends of the first voltage detection module and the second voltage detection module and the other end of the super capacitor module are both grounded. By adopting the utility model, the power supply of the super capacitor can be completely cut off under the condition of power failure, and the system does not consume standby power consumption; the utility model discloses can effectively prolong super capacitor's operating time, super capacitor supplies power only when needs are washed just, need not wash just, and super capacitor is in the state of cutting off the power supply completely, effectively solves MCU's stand-by power consumption problem.
As shown in fig. 3, the first switching module 4 includes a first switching tube unit 41 and a second switching tube unit 42; the control end of the first switch tube unit 41 is the control end of the first switch module 4, the output end of the first switch tube unit 41 is grounded, the input end of the first switch tube unit 41 is electrically connected with the control end of the second switch tube unit 42, and the input end and the output end of the second switch tube unit 42 are respectively the input end and the output end of the first switch module 4.
In this embodiment, the on-off state of the first switch tube unit 41 is controlled, and then the on-off state of the second switch tube unit 42 is controlled, so as to control the on-off state of the first switch module 4.
As shown in fig. 4, the first switching tube unit 41 includes an NPN transistor Q1 and a first resistor R2; one end of the first resistor R2 is a control end of the first switch unit 41, the other end of the first resistor R2 is electrically connected to a base of the NPN transistor Q1, an emitter of the NPN transistor Q1 is an output end of the first switch unit 41, and a collector of the NPN transistor Q1 is an input end of the first switch unit 41. Further, the second switching tube unit 42 includes an N-channel MOS tube Q2, a second resistor R1, and a first capacitor C1; the gate of N channel MOS pipe Q2 is the control end of second switch tube unit 42, the source of N channel MOS pipe Q2 is the input of second switch tube unit 42, the drain of N channel MOS pipe Q2 is the output of second switch tube unit 42, the gate and the source of N channel MOS pipe Q2 pass through second resistance R1 electric connection, the drain of N channel MOS pipe Q2 passes through first electric capacity C1 ground connection.
It should be noted that, in this embodiment, the on state of the NPN type triode Q1 is controlled to further control the on state of the first switching tube unit 41, and the current is limited by the first resistor R2 to avoid burning out the NPN type triode Q1; through control N channel MOS pipe Q2's the on-state and then control second switch tube unit 42's the on-state, and pass through second resistance R1 carries out the current-limiting in order to avoid burning out N channel MOS pipe Q2, simultaneously passes through clutter in the first electric capacity C1 filtering circuit is with the stability that improves the circuit.
As shown in fig. 5, the second switch module 5 includes a dial switch unit SW1 and a second capacitor C2; the input end of the dial switch unit SW1 is electrically connected with the super capacitor module (+ VB) and is grounded through the second capacitor C2, and the output end of the dial switch unit SW1 is electrically connected with the power supply end (+ 5V) of the control module.
It should be noted that, in this embodiment, the on-off state of the second switch module 5 is further controlled by controlling the on-off state of the dial switch unit SW1, and noise in the circuit is filtered by the second capacitor C2 to improve the stability of the circuit.
As shown in fig. 6, the first voltage detection module 1 includes a first voltage-dividing resistor R6 and a second voltage-dividing resistor R7; one end of the first voltage dividing resistor R6 is a first end of the first voltage detection module 1, the other end of the first voltage dividing resistor R6 is a second end of the first voltage detection module 1 and is electrically connected to one end of the second voltage dividing resistor R7, and the other end of the second voltage dividing resistor R7 is a third end of the first voltage detection module 1.
As shown in fig. 7, the second voltage detection module 2 includes a third voltage dividing resistor R3 and a fourth voltage dividing resistor R4; one end of the third voltage dividing resistor R3 is the first end of the second voltage detection module 2, the other end of the third voltage dividing resistor R3 is the second end of the second voltage detection module 2 and is electrically connected to one end of the fourth voltage dividing resistor R4, and the other end of the fourth voltage dividing resistor R4 is the third end of the second voltage detection module 2.
As shown in fig. 8, the super capacitor self-locking circuit further includes a first current limiting module 8, one end of the first current limiting module 8 is electrically connected to the power supply module 6, and the other end of the first current limiting module 8 is electrically connected to the first end of the first voltage detection module 1 and the input end of the first switch module 4.
In this embodiment, the first current limiting module 8 is used to limit current to avoid burning out electronic components.
As shown in fig. 9, the super capacitor self-locking circuit further includes a first diode module 9, one end of the first diode module 9 is electrically connected to the power supply module 6 through the first current limiting module 8, and the other end of the first diode module 9 is electrically connected to the input end of the first switch module 4.
As shown in fig. 10, the self-locking circuit of the super capacitor further includes a second diode module 10, one end of the second diode module 10 is electrically connected to the output end of the first switch module 4 and is electrically connected to the super capacitor module 3 through the second switch module 5, and the other end of the second diode module 10 is electrically connected to the power end of the control module 7.
In summary, as shown in fig. 11, when there is electricity, +6V is electricity, the R6/R7 resistor constitutes a voltage detection circuit, 6V \udet is the MCU input terminal, and the MCU determines that the current power-on state is normal. The MCU outputs C _ SW high level, Q1 and Q2 are conducted, and +5V keeps supplying power to the MCU, so that the system works normally. When +6V disappears in the power-off state, the MCU judges that the current power-off state is the power-off state through 6V _DET, at the moment, the MCU outputs C _ SW low level, Q1/Q2 is disconnected, and +5V disappears. And the MCU enters a power-off state, and the system stops working. When the intelligent closestool needs to flush, the light touch switch SW1 is pressed down, the + VB of the super capacitor instantly provides voltage for +5V through SW1/D2, the MCU is started immediately, the MCU judges that the super capacitor is in a power-off starting state at the moment through 6V/DET voltage, the MCU judges that the voltage of the super capacitor is in a state above 3V through V _ DET at the moment, C _ SW of the MCU outputs high level immediately, Q1/Q2 is conducted, + VB supplies follow current for +5V through Q2/D2, and after the light touch switch SW1 is disconnected at the moment, +5V still maintains voltage power supply, and the system works normally. At the moment, when the MCU judges that the voltage of the super capacitor is in a state below 3V through V _ DET, the super capacitor is not started, or C _ SW is started for a short time to output high level, after the LED indicator lamp gives a short-time low-voltage alarm, the MCU outputs C _ SW low level, Q1/Q2 is switched off, and +5V disappears. And the MCU enters a power-off state, and the system stops working. When the defecation flushing time is 15S and the MCU times 15S, the C _ SW outputs low level, Q1/Q2 is disconnected, the +5V disappears, the MCU enters a power-off state, and the system stops working.
Therefore, the utility model discloses a under the outage condition, cut off super capacitor's power supply completely, do not let the system consumption stand-by power consumption. When the toilet flushing is needed, for example, within 15 seconds, the super capacitor supplies power to the system through the self-locking circuit, after the toilet flushing is finished, the MCU cuts off the self-locking circuit and cuts off the power supply of the system, standby 0 loss of the super capacitor is achieved, and the service time of the super capacitor after single charging is prolonged. The intelligent closestool is flushed by a switch of the pulse valve, and under the condition of power failure, the pulse valve is powered by the super capacitor to flush. Adopt the utility model discloses, can effectively prolong super capacitor's operating time, super capacitor supplies power only when needs are washed just, need not wash when just, and super capacitor is in the state of cutting off the power supply completely, effectively solves MCU's stand-by power consumption problem.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (10)
1. A super capacitor self-locking circuit is characterized by comprising a first voltage detection module, a second voltage detection module, a super capacitor module, a first switch module, a second switch module, a power supply module and a control module;
the first end of the first voltage detection module is electrically connected with the power supply module, the second ends of the first voltage detection module and the second voltage detection module and the control end of the first switch module are respectively electrically connected with the control module, the input end of the first switch module is electrically connected with the power supply module, the output end of the first switch module is electrically connected with the power end of the control module, one end of the super capacitor module is electrically connected with the first end of the second voltage detection module and the power supply module and passes through the second switch module and the power end of the control module, and the third ends of the first voltage detection module and the second voltage detection module and the other end of the super capacitor module are both grounded.
2. The self-locking circuit of claim 1, wherein the first switch module comprises a first switch tube unit and a second switch tube unit;
the control end of the first switch tube unit is the control end of the first switch module, the output end of the first switch tube unit is grounded, the input end of the first switch tube unit is electrically connected with the control end of the second switch tube unit, and the input end and the output end of the second switch tube unit are respectively the input end and the output end of the first switch module.
3. The super capacitor self-locking circuit as claimed in claim 2, wherein the first switching tube unit comprises an NPN transistor and a first resistor;
one end of the first resistor is a control end of the first switch tube unit, the other end of the first resistor is electrically connected with a base electrode of the NPN type triode, an emitter of the NPN type triode is an output end of the first switch tube unit, and a collector of the NPN type triode is an input end of the first switch tube unit.
4. The super capacitor self-locking circuit as claimed in claim 2, wherein the second switching tube unit comprises an N-channel MOS tube, a second resistor and a first capacitor;
the grid electrode of the N-channel MOS tube is the control end of the second switch tube unit, the source electrode of the N-channel MOS tube is the input end of the second switch tube unit, the drain electrode of the N-channel MOS tube is the output end of the second switch tube unit, the grid electrode and the source electrode of the N-channel MOS tube are electrically connected through the second resistor, and the drain electrode of the N-channel MOS tube is grounded through the first capacitor.
5. The super capacitor self-locking circuit as claimed in claim 1, wherein the second switch module comprises a dial switch unit and a second capacitor;
the input end of the dial switch unit is electrically connected with the super capacitor module and is grounded through the second capacitor, and the output end of the dial switch unit is electrically connected with the power end of the control module.
6. The self-locking circuit of claim 1, wherein the first voltage detection module comprises a first voltage dividing resistor and a second voltage dividing resistor;
one end of the first voltage dividing resistor is a first end of the first voltage detecting module, the other end of the first voltage dividing resistor is a second end of the first voltage detecting module and is electrically connected to one end of the second voltage dividing resistor, and the other end of the second voltage dividing resistor is a third end of the first voltage detecting module.
7. The self-locking circuit of claim 1, wherein the second voltage detection module comprises a third voltage dividing resistor and a fourth voltage dividing resistor;
one end of the third voltage dividing resistor is the first end of the second voltage detecting module, the other end of the third voltage dividing resistor is the second end of the second voltage detecting module and is electrically connected with one end of the fourth voltage dividing resistor, and the other end of the fourth voltage dividing resistor is the third end of the second voltage detecting module.
8. The self-locking circuit of any one of claims 1 to 7, further comprising a first current limiting module, wherein one end of the first current limiting module is electrically connected to the power supply module, and the other end of the first current limiting module is electrically connected to the first end of the first voltage detection module and the input end of the first switch module.
9. The self-locking circuit of claim 8, further comprising a first diode module, wherein one end of the first diode module is electrically connected to the power supply module through the first current limiting module, and the other end of the first diode module is electrically connected to the input end of the first switch module.
10. The supercapacitor self-locking circuit according to any one of claims 1 to 7, further comprising a second diode module, one end of the second diode module being electrically connected to the output end of the first switch module and electrically connected to the supercapacitor module through the second switch module, and the other end of the second diode module being electrically connected to the power supply end of the control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220209407.5U CN217545616U (en) | 2022-01-25 | 2022-01-25 | Self-locking circuit of super capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220209407.5U CN217545616U (en) | 2022-01-25 | 2022-01-25 | Self-locking circuit of super capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217545616U true CN217545616U (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220209407.5U Active CN217545616U (en) | 2022-01-25 | 2022-01-25 | Self-locking circuit of super capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217545616U (en) |
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2022
- 2022-01-25 CN CN202220209407.5U patent/CN217545616U/en active Active
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