CN210819655U - Shaver control circuit - Google Patents
Shaver control circuit Download PDFInfo
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- CN210819655U CN210819655U CN201921250276.XU CN201921250276U CN210819655U CN 210819655 U CN210819655 U CN 210819655U CN 201921250276 U CN201921250276 U CN 201921250276U CN 210819655 U CN210819655 U CN 210819655U
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Abstract
The utility model relates to a razor control circuit, including chip and chip control circuit, the chip connect the chip control circuit that receives, the chip include pin EN, pin VDD, pin OUT, pin LED, pin GND and pin KEY, chip control circuit including charge detection circuitry, filter circuit and operational circuit, charge detection circuitry input connect the live wire, the output connects power BT1 zero line, the filter circuit input connect the live wire, output ground connection connects, operational circuit's input connect power BT1 anodal, power BT1 negative pole is connected to the output. The control circuit of the shaver adopts a CMOS process, has low power consumption, is internally provided with an oscillating resistor, is convenient to apply, has large power storage capacity and lasts for a long time.
Description
Technical Field
The utility model relates to a control circuit especially relates to a razor control circuit.
Background
The electric shaver drives the blade to move by adopting electric power, thereby realizing the shaving effect, being safe and convenient to use, being comfortable in the shaving process and being loved by more and more users. An electric shaver generally comprises a battery, a motor, a blade and a shell, wherein the battery is connected with the motor to supply power to the motor, and the motor drives the blade to move, so that the shaving effect is realized. However, the shaver adopting the mode of storing electricity by the battery in the market needs to carry the battery, and the power supply BT1 needs to be plugged in for shaving when the electricity stored in the battery is used up, so that the shaver is unsafe for users who use the shaver, electric shock is easy to cause, the electric storage quantity of the shaver with the function of storing electricity by charging in the market is small, and the shaver usually does not use much time due to large power consumption in the using process of the shaver.
SUMMERY OF THE UTILITY MODEL
To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a shaver control circuit is provided to solve prior art problem.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model provides a razor control circuit, a serial communication port, includes chip and chip control circuit, the chip connect the chip control circuit that receives, the chip include pin EN, pin VDD, pin OUT, pin LED, pin GND and pin KEY, chip control circuit including charge detection circuitry, filter circuit and operational circuit, charge detection circuitry input connect the live wire, the zero line is connected to the output, the filter circuit input connect the live wire, output ground connection connects, operational circuit's input connect power BT1 anodal, power BT1 negative pole is connected to the output.
Further, the detection circuitry that charges include resistance R2, R3 and emitting diode D3, resistance R3 one end connect the live wire, the other end is connected the pin EN of chip, R2 one end connect the live wire, the other end connect emitting diode D3's positive pole, emitting diode D3's negative pole connect the zero line and connect ground. The charge detection circuit thus causes the razor to be illuminated by the light emitting diode D3 during charging to indicate charging.
Furthermore, the filter circuit comprises a resistor R4, a diode D1 and a capacitor C1, the anode of the diode D1 is connected with the live wire, one end of the resistor R4 is respectively connected with the cathode of the diode D1 and the anode of a power supply BT1, and the other end of the resistor R4 is respectively connected with the capacitor C1 and a pin of a chip VDD. Therefore, the filter circuit enables the power supply BT1 to supply power to the chip in a single direction through green wave rectification through the diode D1 in the use process of the shaver.
Further, the operation circuit comprises a resistor R1, a light emitting diode D2, a control switch S1 and a MOS (metal oxide semiconductor) transistor, wherein the anode of the power supply BT1 is respectively connected with the resistor R1 and the motor M1, the other end of the resistor R1 is connected with the anode of the light emitting diode D2, the cathode of the light emitting diode D2 is connected with the chip pin LED, one end of the control switch S1 is connected with the chip pin KEY, the other end of the control switch S1 is connected with the cathode of the power supply BT1 and is connected with the cathode of the power supply in parallel, the other end of the motor M1 is connected with the NMOS transistor driving motor M1 of the MOS transistor, the PMOS of the MOS transistor is connected with the chip pin OUT, and the third port of the MOS transistor is connected with the ground. The running circuit is enabled to run and work by the power supply M1 under the power supply of the power supply BT1 through the MOS process.
Compared with the prior art, the utility model has the advantages of:
the utility model provides a razor control circuit, includes chip and chip control circuit, the chip connect the chip control circuit that receives, the chip include pin EN, pin VDD, pin OUT, pin LED, pin GND and pin KEY, chip control circuit including charge detection circuitry, filter circuit and operational circuit, charge detection circuitry input connect the live wire, the output is connected power BT1 zero line, the filter circuit input connect the live wire, output ground connection connects, operational circuit's input connect power BT1 anodal, power BT1 negative pole is connected to the output. The control circuit of the shaver adopts a CMOS process, has low power consumption, is internally provided with an oscillating resistor, is convenient to apply, has large power storage capacity and lasts for a long time.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
As shown in fig. 1, the device comprises a chip and a chip control circuit, wherein the chip is connected with a received chip control circuit, the chip comprises a pin EN, a pin VDD, a pin OUT, a pin LED, a pin GND and a pin KEY, the chip control circuit comprises a charge detection circuit, a filter circuit and an operation circuit, the input end of the charge detection circuit is connected with a live wire, the output end of the charge detection circuit is connected with a zero wire, the input end of the filter circuit is connected with a live wire, the output end of the filter circuit is connected with a ground, the input end of the operation circuit is connected with the positive pole of a power supply BT1, the output end of the operation circuit is connected with the negative pole of a power supply BT1, the charge detection circuit comprises resistors R2, R3 and a light emitting diode D2, one end of the resistor R3 is connected with the live wire, the other end of the resistor is connected with the pin EN of the chip, one end, the cathode of the light emitting diode D2 is connected with the zero line and is connected with the ground, the charging detection circuit enables the shaver to be charged by the fact that the light emitting diode D3 is lightened in the charging process, the filter circuit comprises a resistor R4, a diode D1 and a capacitor C1, the anode of the diode D1 is connected with the live line, one end of the resistor R4 is respectively connected with the cathode of the diode D1 and the anode of a power supply BT1, the other end of the resistor R is respectively connected with the capacitor C1 and a chip VDD pin, the filter circuit enables the shaver to be powered to be used by the single direction of the green wave rectification of the power supply BT1 through the diode D1, the operation circuit comprises a resistor R1, a light emitting diode D2, a control switch S1 and a MOS tube, the anode of the power supply BT1 is respectively connected with the resistor R1 and the motor M1, the other end of the resistor R1 is connected with the anode of the light emitting diode D2, the negative electrode of the light emitting diode D2 is connected with the chip pin LED, one end of the control switch S1 is connected with the chip pin KEY, the other end of the control switch S1 is connected with the negative electrode of the power supply BT1 and is connected with the ground, the other end of the motor M1 is connected with the NMOS tube driving motor M11 of the MOS tube, the PMOS of the MOS tube is connected with the chip pin OUT, and the third port of the MOS tube is connected with the ground. The running circuit is enabled to run and work by the power supply M1 under the power supply of the power supply BT1 through the MOS process.
During specific operation, under the condition that the shaver is charged, the shaver is connected with an alternating current through a plug to enter a charging state, the chip pin EN is pulled down, the charging detection circuit is conducted, the power supply BT1 is charged at the moment, and the light-emitting diode D3 is turned on to indicate that the charging is in progress; when the shaver is used, the running circuit runs the motor M1 through the filter circuit under the power supply of the power supply BT1, specifically: when the switch KEY ON the chip pin KEY is pressed to be in an OFF state, the chip pin OUT is in a low level, the MOS transistor and the motor M1 are in a high level, and the motor M1 does not rotate. Triggering an ON-off KEY ON a chip pin KEY to an ON state: the chip pin OUT is in a high level, the motor M1 rotates, when the connection end of the MOS tube and the motor M1 is in a low level, the light emitting diode D2 is ON, meanwhile, the voltage of the chip pin VDD and the voltage of the chip pin EN are continuously detected, if the voltage of the chip pin VDD is lower than 1.6V and continues for 500mS or the high level of the chip pin EN continues for 15mS, the chip pin VDD is switched to be in an ON-OFF state, and in addition, if the high level of the chip pin EN triggers the ON-OFF state of the ON-OFF control KEY, the ON-OFF control KEY ON the chip pin KEY cannot be triggered again before the high level of the chip pin.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (4)
1. The utility model provides a razor control circuit, a serial communication port, includes chip and chip control circuit, the chip connect the chip control circuit that receives, the chip include pin EN, pin VDD, pin OUT, pin LED, pin GND and pin KEY, chip control circuit including charge detection circuitry, filter circuit and operational circuit, charge detection circuitry input connect the live wire, the zero line is connected to the output, the filter circuit input connect the live wire, output ground connection connects, operational circuit's input connect power BT1 anodal, power BT1 negative pole is connected to the output.
2. The control circuit as claimed in claim 1, wherein said charge detection circuit comprises resistors R2, R3, and led D3, said resistor R3 having one end connected to said hot line and the other end connected to pin EN of said chip, said resistor R2 having one end connected to said hot line and the other end connected to the anode of said led D3, and said cathode of said led D3 connected to the neutral line and ground.
3. The razor control circuit of claim 2, wherein said filter circuit comprises a resistor R4, a diode D1 and a capacitor C1, the anode of said diode D1 is connected to said hot line, one end of said resistor R4 is connected to the cathode of said diode D1 and the anode of a power supply BT1, and the other end is connected to said capacitor C1 and the chip VDD pin.
4. A razor control circuit as claimed in claim 3, wherein said operating circuit comprises a resistor R1, a light emitting diode D2, a control switch S1 and a MOS transistor, the positive terminal of said power supply BT1 is connected to said resistor R1 and said motor M1 respectively, the other terminal of said resistor R1 is connected to the positive terminal of said light emitting diode D2, the negative terminal of said light emitting diode D2 is connected to the LED of the pin of said chip, one terminal of said control switch S1 is connected to the KEY of said pin of said chip, the other terminal is connected to the negative terminal of said power supply BT1 and connected to ground, the other terminal of said motor M1 is connected to the NMOS transistor driving motor M1 of said MOS transistor, the PMOS of said MOS transistor is connected to the pin OUT of said chip, and the third port of said MOS transistor is connected to ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921250276.XU CN210819655U (en) | 2019-08-05 | 2019-08-05 | Shaver control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921250276.XU CN210819655U (en) | 2019-08-05 | 2019-08-05 | Shaver control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210819655U true CN210819655U (en) | 2020-06-23 |
Family
ID=71274371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921250276.XU Active CN210819655U (en) | 2019-08-05 | 2019-08-05 | Shaver control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210819655U (en) |
-
2019
- 2019-08-05 CN CN201921250276.XU patent/CN210819655U/en active Active
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