CN220653229U - Shaver control circuit - Google Patents
Shaver control circuit Download PDFInfo
- Publication number
- CN220653229U CN220653229U CN202322367940.1U CN202322367940U CN220653229U CN 220653229 U CN220653229 U CN 220653229U CN 202322367940 U CN202322367940 U CN 202322367940U CN 220653229 U CN220653229 U CN 220653229U
- Authority
- CN
- China
- Prior art keywords
- electrically connected
- chip
- main control
- grounded
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000007600 charging Methods 0.000 claims description 31
- 101000908580 Homo sapiens Spliceosome RNA helicase DDX39B Proteins 0.000 claims description 19
- 102100021298 b(0,+)-type amino acid transporter 1 Human genes 0.000 claims description 19
- 230000005611 electricity Effects 0.000 claims description 16
- 239000003990 capacitor Substances 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 230000000087 stabilizing effect Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010280 constant potential charging Methods 0.000 description 2
- 238000010277 constant-current charging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Control Of Direct Current Motors (AREA)
Abstract
The utility model provides a shaver control circuit which comprises a power supply module, a main control chip U3, a driving module and an indication module, wherein the driving module is used for driving the shaver to perform: the main control chip U3 is electrically connected with the grid electrode of the MOS tube Q1 through a resistor R6, the grid electrode of the MOS tube Q1 is grounded through a resistor R8, the source electrode of the MOS tube Q1 is grounded through a resistor R10, the source electrode of the MOS tube Q1 is electrically connected with the motor current detection end through a resistor R7, the motor current detection end is electrically connected with the main control chip U3, the drain electrode of the MOS tube Q1 is electrically connected with the negative electrode of the motor, and the positive electrode of the motor is electrically connected with the power end of the main control chip U3. According to the utility model, the master control chip sends out a PWM signal to control the MOS tube to be conducted, a current value is obtained through the motor current detection end, the negative voltage of the motor is combined with the resistance value of the resistor R7, the duty ratio of the master control chip sending out the PWM signal is regulated, the negative voltage of the motor is ensured to be stabilized at a required value, and the constant voltage operation of the motor is realized.
Description
Technical Field
The utility model relates to the technical field of shaver control circuits, in particular to a shaver control circuit.
Background
With the development of technology, shavers are used by people to shave beards. The shaver is generally internally provided with a rechargeable battery, and the energy of the rechargeable battery is gradually released and the voltage of the rechargeable battery is gradually reduced in the use process of the rechargeable battery. In the prior art, in order to ensure the stable normal operation of the motor of the shaver, a voltage stabilizing chip is generally arranged in an internal circuit of the shaver, and the input voltage is stabilized at a stable voltage required by the motor through the voltage stabilizing chip. However, due to the circuit design, the cost of the whole circuit is increased because of the need of the voltage stabilizing chip, and the environment needed by the normal operation of the voltage stabilizing chip is higher than that needed by the conventional MOS tube, resistor and capacitor, so the service life of the voltage stabilizing chip is limited.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the shaver control circuit solves the problem that in the prior art, an input voltage can be stabilized under the voltage required by a motor only by using a voltage stabilizing chip.
The utility model solves the problems by adopting the following technical scheme: the shaver control circuit comprises a power supply module for supplying power, a main control chip U3, a driving module for driving a motor to work and an indication module for displaying the residual electric quantity condition of the power supply module;
the driving module comprises a MOS tube Q1, a diode D2, resistors R6, R7, R8 and R10, and capacitors C3 and C5; the main control chip U3 is electrically connected with the grid electrode of the MOS tube Q1 through a resistor R6, the grid electrode of the MOS tube Q1 is grounded through a resistor R8, the source electrode of the MOS tube Q1 is grounded through a resistor R10, the source electrode of the MOS tube Q1 is electrically connected with the motor current detection end through a resistor R7, the motor current detection end is grounded through a capacitor C5, the motor current detection end is electrically connected with the main control chip U3, the drain electrode of the MOS tube Q1 is electrically connected with the negative electrode of the motor, the positive electrode of the motor is electrically connected with the power end of the main control chip U3, the positive electrode of the motor is electrically connected with the negative electrode of a diode D2, the positive electrode of the diode D2 is electrically connected with the negative electrode of the motor, and the capacitor C3 is connected with the two ends of the motor in parallel;
the indication module comprises a green light for displaying sufficient residual electric quantity of the power supply module, a red light for displaying insufficient residual electric quantity of the power supply module and a loudspeaker for sending out alarm information when the residual electric quantity of the power supply module is insufficient, and the power supply module, the green light, the red light and the loudspeaker are all electrically connected with the main control chip U3.
Compared with the prior art, the utility model has the advantages that: the main control chip U3 sends a PWM signal to control the MOS tube Q1 to be conducted, a current value is obtained through a motor current detection end, and the voltage value of the motor negative electrode is combined with the resistance value of the resistor R7, so that the duty ratio of the PWM signal sent by the main control chip U3 is regulated, the obtained current value is ensured to be stable in a required range, the negative electrode voltage of the motor is ensured to be stable in a required value, and the constant voltage operation of the motor is realized; meanwhile, the electric quantity of the power supply module can be displayed through red lights, green lights and speakers.
Preferably, the red light comprises a light emitting diode D3 and a light emitting diode D4, and the green light comprises a light emitting diode D6 and a light emitting diode D7; the main control chip U3 is electrically connected with the anode of the light emitting diode D3 and the anode of the light emitting diode D4 through a resistor R11, and the cathode of the light emitting diode D3 and the cathode of the light emitting diode D4 are grounded; the main control chip U3 is electrically connected with the anode of the light emitting diode D6 and the anode of the light emitting diode D7 through a resistor R12, and the cathode of the light emitting diode D6 and the cathode of the light emitting diode D7 are grounded.
The technical scheme has the technical effects that: the red light and the green light are respectively formed by connecting two light emitting diodes in parallel, and if one light emitting diode is damaged, the indication can be performed through the other light emitting diode.
Preferably, the speaker includes loudspeaker BUZ1, main control chip U3 passes through resistance R13 and is connected with triode Q2's base electricity, triode Q2's projecting pole ground connection, triode Q2's collecting electrode is connected with loudspeaker BUZ 1's negative pole electricity, loudspeaker BUZ 1's anodal is connected with main control chip U3's power end electricity, loudspeaker BUZ 1's anodal is connected with diode D5's negative pole electricity, diode D5's anodal is connected with loudspeaker BUZ 1's negative pole electricity, loudspeaker BUZ1 both ends still connect a electric capacity C7 in parallel.
The technical scheme has the technical effects that: through setting up triode Q2, guarantee can start loudspeaker BUZ1 work.
Preferably, the power module comprises a USB interface, a charging chip U1, a battery protection chip U2 and a rechargeable battery BAT1, wherein the charging chip U1 is a TC4056 charging chip, and the battery protection chip U2 is an XB5608A battery protection chip; the anode of the USB interface is electrically connected with the anode of the diode D1, the cathode of the diode D1 is grounded, and the cathode of the USB interface is grounded; the first pin and the third pin of the charging chip U1 are grounded, the second pin of the charging chip U1 is grounded through a resistor R5, the fourth pin and the eighth pin of the charging chip U1 are electrically connected with the cathode of the diode D1, the fifth pin of the charging chip U1 is electrically connected with the anode of the rechargeable battery BAT1, the fifth pin of the charging chip U1 is grounded through a capacitor C2, and the sixth pin and the seventh pin of the charging chip U1 are electrically connected with the main control chip U3; the first pin and the second pin of the battery protection chip U2 are electrically connected with the negative electrode of the rechargeable battery BAT1, the third pin of the battery protection chip U2 is electrically connected with the positive electrode of the rechargeable battery BAT1 through a resistor R9, and the fourth pin and the fifth pin of the battery protection chip U2 are grounded; the positive pole of rechargeable battery BAT1 is connected with the power end electricity of main control chip U3, rechargeable battery BAT 1's positive pole passes through electric capacity C4 and rechargeable battery BAT 1's negative pole electricity and is connected.
The technical scheme has the technical effects that: the charging chip U1 is used for ensuring that the rechargeable battery BAT1 can be stably charged, realizing constant current or constant voltage charging and ensuring the charging efficiency; the work of the rechargeable battery is guaranteed through the battery protection chip U2, and the conditions of overcharge, overdischarge, overcurrent, overtemperature, short circuit and the like are prevented.
Preferably, the main control chip U3 is connected with the starting switch S1 and the resistor R14 in series to be grounded.
The technical scheme has the technical effects that: through setting up start switch S1, start switch S1 sends the start signal to main control chip U3, and main control chip U3 outputs PWM signal to MOS pipe Q1 control motor steady operation.
Drawings
Fig. 1 is a system block diagram of a shaver control circuit according to the present utility model;
fig. 2 is a circuit diagram of a power module of a shaver control circuit according to the present utility model;
fig. 3 is a circuit diagram of a shaver control circuit according to the present utility model.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
As shown in fig. 1 to 3, the present embodiment relates to a shaver control circuit, which includes a power module for providing power, a main control chip U3, a driving module for driving a motor to work, and an indication module for displaying the residual electric quantity of the power module, wherein the power module, the driving module and the indication circuit are all electrically connected with the main control chip U3.
The driving module comprises a MOS tube Q1, a diode D2, resistors R6, R7, R8 and R10, and capacitors C3 and C5; the main control chip U3 is electrically connected with the grid electrode of the MOS tube Q1 through a resistor R6, the grid electrode of the MOS tube Q1 is grounded through a resistor R8, the source electrode of the MOS tube Q1 is grounded through a resistor R10, the source electrode of the MOS tube Q1 is electrically connected with the motor current detection end through a resistor R7, the motor current detection end is grounded through a capacitor C5, the motor current detection end is electrically connected with the main control chip U3, the drain electrode of the MOS tube Q1 is electrically connected with the cathode of the motor, the anode of the motor is electrically connected with the power end of the main control chip U3, the anode of the motor is electrically connected with the cathode of the diode D2, the anode of the diode D2 is electrically connected with the cathode of the motor, and the capacitor C3 is connected with the two ends of the motor in parallel.
The main control chip U3 sends PWM signals to control the MOS tube Q1 to be conducted, a current value is obtained through the motor current detection end, the voltage value of the motor negative electrode is combined with the resistance value of the resistor R7, the duty ratio of the PWM signals sent by the main control chip U3 is regulated, the obtained current value is ensured to be stable in a required range, the negative electrode voltage of the motor is ensured to be stable in a required value, and the constant voltage operation of the motor is realized.
In this embodiment, the indication module includes a green light for displaying that the power module residual capacity is sufficient, a red light for displaying that the power module residual capacity is insufficient, and a speaker for sending out alarm information when the power module residual capacity is insufficient, where the green light, the red light and the speaker are all electrically connected with the main control chip U3.
Specifically, the red light comprises a light emitting diode D3 and a light emitting diode D4, and the green light comprises a light emitting diode D6 and a light emitting diode D7;
the main control chip U3 is electrically connected with the anode of the light emitting diode D3 and the anode of the light emitting diode D4 through a resistor R11, and the cathode of the light emitting diode D3 and the cathode of the light emitting diode D4 are grounded;
the main control chip U3 is electrically connected with the anode of the light emitting diode D6 and the anode of the light emitting diode D7 through a resistor R12, and the cathode of the light emitting diode D6 and the cathode of the light emitting diode D7 are grounded.
The electric quantity of the power supply module is displayed through a red light, a green light and a loudspeaker, the red light and the green light are respectively formed by connecting two light emitting diodes in parallel, and if one light emitting diode is damaged, the other light emitting diode can also be used for indicating.
Wherein, loudspeaker includes loudspeaker BUZ1, master control chip U3 passes through resistance R13 and is connected with triode Q2's base electricity, triode Q2's projecting pole ground connection, triode Q2's collecting electrode is connected with loudspeaker BUZ 1's negative pole electricity, loudspeaker BUZ 1's positive pole is connected with master control chip U3's power end electricity, loudspeaker BUZ 1's positive pole is connected with diode D5's negative pole electricity, diode D5's positive pole is connected with loudspeaker BUZ 1's negative pole electricity, loudspeaker BUZ1 both ends still parallelly connected a electric capacity C7. Through setting up triode Q2, guarantee can start loudspeaker BUZ1 work.
In this embodiment, the power module includes a USB interface, a charging chip U1, a battery protection chip U2, and a rechargeable battery BAT1, where the charging chip U1 is a TC4056 charging chip, and the battery protection chip U2 is an XB5608A battery protection chip;
the anode of the USB interface is electrically connected with the anode of the diode D1, the cathode of the diode D1 is grounded, and the cathode of the USB interface is grounded;
the first pin and the third pin of the charging chip U1 are grounded, the second pin of the charging chip U1 is grounded through a resistor R5, the fourth pin and the eighth pin of the charging chip U1 are electrically connected with the cathode of the diode D1, the fifth pin of the charging chip U1 is electrically connected with the anode of the rechargeable battery BAT1, the fifth pin of the charging chip U1 is grounded through a capacitor C2, and the sixth pin and the seventh pin of the charging chip U1 are electrically connected with the main control chip U3;
the first pin and the second pin of the battery protection chip U2 are electrically connected with the cathode of the rechargeable battery BAT1, the third pin of the battery protection chip U2 is electrically connected with the anode of the rechargeable battery BAT1 through a resistor R9, and the fourth pin and the fifth pin of the battery protection chip U2 are grounded;
the positive pole of rechargeable battery BAT1 is connected with the power end electricity of main control chip U3, and the positive pole of rechargeable battery BAT1 is connected with the negative pole electricity of rechargeable battery BAT1 through electric capacity C4.
The charging chip U1 is used for ensuring that the rechargeable battery BAT1 can be stably charged, realizing constant current or constant voltage charging and ensuring the charging efficiency; the work of the rechargeable battery is guaranteed through the battery protection chip U2, and the conditions of overcharge, overdischarge, overcurrent, overtemperature, short circuit and the like are prevented.
In this embodiment, the main control chip U3 is connected in series to the start switch S1 and the resistor R14 to be grounded. Through setting up start switch S1, start switch S1 sends the start signal to main control chip U3, and main control chip U3 outputs PWM signal to MOS pipe Q1 control motor steady operation.
The beneficial effects of the utility model are as follows: the main control chip U3 sends a PWM signal to control the MOS tube Q1 to be conducted, a current value is obtained through a motor current detection end, and the voltage value of the motor negative electrode is combined with the resistance value of the resistor R7, so that the duty ratio of the PWM signal sent by the main control chip U3 is regulated, the obtained current value is ensured to be stable in a required range, the negative electrode voltage of the motor is ensured to be stable in a required value, and the constant voltage operation of the motor is realized; meanwhile, the electric quantity of the power supply module can be displayed through red lights, green lights and speakers.
While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.
Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.
Claims (5)
1. A razor control circuit, characterized by: the power supply device comprises a power supply module for providing power, a main control chip U3, a driving module for driving a motor to work and an indication module for displaying the residual electric quantity of the power supply module;
the driving module comprises a MOS tube Q1, a diode D2, resistors R6, R7, R8 and R10, and capacitors C3 and C5; the main control chip U3 is electrically connected with the grid electrode of the MOS tube Q1 through a resistor R6, the grid electrode of the MOS tube Q1 is grounded through a resistor R8, the source electrode of the MOS tube Q1 is grounded through a resistor R10, the source electrode of the MOS tube Q1 is electrically connected with the motor current detection end through a resistor R7, the motor current detection end is grounded through a capacitor C5, the motor current detection end is electrically connected with the main control chip U3, the drain electrode of the MOS tube Q1 is electrically connected with the negative electrode of the motor, the positive electrode of the motor is electrically connected with the power end of the main control chip U3, the positive electrode of the motor is electrically connected with the negative electrode of a diode D2, the positive electrode of the diode D2 is electrically connected with the negative electrode of the motor, and the capacitor C3 is connected with the two ends of the motor in parallel;
the indication module comprises a green light for displaying sufficient residual electric quantity of the power supply module, a red light for displaying insufficient residual electric quantity of the power supply module and a loudspeaker for sending out alarm information when the residual electric quantity of the power supply module is insufficient, and the power supply module, the green light, the red light and the loudspeaker are all electrically connected with the main control chip U3.
2. A razor control circuit according to claim 1, wherein:
the red light comprises a light emitting diode D3 and a light emitting diode D4, and the green light comprises a light emitting diode D6 and a light emitting diode D7;
the main control chip U3 is electrically connected with the anode of the light emitting diode D3 and the anode of the light emitting diode D4 through a resistor R11, and the cathode of the light emitting diode D3 and the cathode of the light emitting diode D4 are grounded;
the main control chip U3 is electrically connected with the anode of the light emitting diode D6 and the anode of the light emitting diode D7 through a resistor R12, and the cathode of the light emitting diode D6 and the cathode of the light emitting diode D7 are grounded.
3. A razor control circuit according to claim 1, wherein: the loudspeaker comprises a loudspeaker BUZ1, a main control chip U3 is electrically connected with a base electrode of a triode Q2 through a resistor R13, an emitter electrode of the triode Q2 is grounded, a collector electrode of the triode Q2 is electrically connected with a negative electrode of the loudspeaker BUZ1, a positive electrode of the loudspeaker BUZ1 is electrically connected with a power end of the main control chip U3, a positive electrode of the loudspeaker BUZ1 is electrically connected with a negative electrode of a diode D5, a positive electrode of the diode D5 is electrically connected with a negative electrode of the loudspeaker BUZ1, and two ends of the loudspeaker BUZ1 are also connected with a capacitor C7 in parallel.
4. A razor control circuit according to claim 1, wherein: the power module comprises a USB interface, a charging chip U1, a battery protection chip U2 and a rechargeable battery BAT1, wherein the charging chip U1 is a TC4056 charging chip, and the battery protection chip U2 is an XB5608A battery protection chip;
the anode of the USB interface is electrically connected with the anode of the diode D1, the cathode of the diode D1 is grounded, and the cathode of the USB interface is grounded;
the first pin and the third pin of the charging chip U1 are grounded, the second pin of the charging chip U1 is grounded through a resistor R5, the fourth pin and the eighth pin of the charging chip U1 are electrically connected with the cathode of the diode D1, the fifth pin of the charging chip U1 is electrically connected with the anode of the rechargeable battery BAT1, the fifth pin of the charging chip U1 is grounded through a capacitor C2, and the sixth pin and the seventh pin of the charging chip U1 are electrically connected with the main control chip U3;
the first pin and the second pin of the battery protection chip U2 are electrically connected with the negative electrode of the rechargeable battery BAT1, the third pin of the battery protection chip U2 is electrically connected with the positive electrode of the rechargeable battery BAT1 through a resistor R9, and the fourth pin and the fifth pin of the battery protection chip U2 are grounded;
the positive pole of rechargeable battery BAT1 is connected with the power end electricity of main control chip U3, rechargeable battery BAT 1's positive pole passes through electric capacity C4 and rechargeable battery BAT 1's negative pole electricity and is connected.
5. A razor control circuit according to claim 1, wherein: the main control chip U3 is connected with the starting switch S1 and the resistor R14 in series to be grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322367940.1U CN220653229U (en) | 2023-08-31 | 2023-08-31 | Shaver control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322367940.1U CN220653229U (en) | 2023-08-31 | 2023-08-31 | Shaver control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220653229U true CN220653229U (en) | 2024-03-22 |
Family
ID=90262659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322367940.1U Active CN220653229U (en) | 2023-08-31 | 2023-08-31 | Shaver control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220653229U (en) |
-
2023
- 2023-08-31 CN CN202322367940.1U patent/CN220653229U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104617626A (en) | Charging protection circuit used for capacitor voltage reduction | |
| CN211377693U (en) | Power transmission line hybrid power supply based on solar energy and induction energy obtaining | |
| CN201142468Y (en) | Charging protection socket for electric car | |
| CN101937016A (en) | Low voltage promoting device | |
| CN220653229U (en) | Shaver control circuit | |
| CN104659847A (en) | Battery charging control circuit and lamp | |
| CN106080238B (en) | A kind of Intelligent charging system of electric automobile | |
| CN220491207U (en) | Constant voltage razor control circuit | |
| CN201113484Y (en) | Solar power supply equipment | |
| CN211151568U (en) | Battery management system slowly charges CP signal awakening circuit | |
| CN201134691Y (en) | Movable power source | |
| CN204424972U (en) | For the charge protector of capacitance decompression | |
| CN203056650U (en) | Lithium iron phosphate cell emergency power source | |
| KR101755187B1 (en) | Apparatus and method for controlling current | |
| CN218629962U (en) | New energy automobile fills electric pile detection circuitry | |
| CN215300215U (en) | Circuit with high-efficient pulse control function | |
| CN213585222U (en) | Double-battery low-power-consumption controller circuit | |
| CN219659443U (en) | Inter-battery charging system of lead-acid battery | |
| CN2235670Y (en) | Protector of accumulator for charging or discharging | |
| CN2150659Y (en) | Quick-acting charger for battery | |
| CN213310512U (en) | Electric toothbrush circuit | |
| CN213151910U (en) | Power supply conversion control circuit and device | |
| CN218276153U (en) | Charging circuit compatible with two charging modes and mobile lighting equipment thereof | |
| CN202424245U (en) | Lithium battery charger | |
| CN212063537U (en) | A dual input lead acid battery quick charge circuit for fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |