CN207720132U - A kind of WIFI module power shutdown circuit - Google Patents
A kind of WIFI module power shutdown circuit Download PDFInfo
- Publication number
- CN207720132U CN207720132U CN201720775313.3U CN201720775313U CN207720132U CN 207720132 U CN207720132 U CN 207720132U CN 201720775313 U CN201720775313 U CN 201720775313U CN 207720132 U CN207720132 U CN 207720132U
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- China
- Prior art keywords
- circuit
- resistance
- decoupling capacitor
- wifi module
- driver
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- 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.)
- Expired - Fee Related
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- Logic Circuits (AREA)
Abstract
The utility model provides a kind of WIFI module power shutdown circuit；Including reset circuit, enabled circuit, power source deoupling circuit, power switch circuit；The reset circuit includes reseting port PA1, and the pin 1 of driver U1 is accessed after reseting port PA1 is in parallel with pull down resistor R1, and the pull down resistor R1 is connect with power supply VCC anodes；The enabled circuit includes enabled input terminal PA1, the Enable Pin series connection of access driver U1 after enabled input terminal PA1 connects with pull down resistor R2；The power source deoupling circuit includes power supply VCC, decoupling capacitor C1, decoupling capacitor C2, and the pin 8 of power supply VCC and driver U1 connects, and power supply VCC after decoupling capacitor C1 and decoupling capacitor C2 parallel connections with ground terminal GND by connecting；The utility model inputs high and low pressure level by switch tube, is that switching tube quickly controls WIFI module high-speed switch, prevents WIFI module power consumption.
Description
Technical field
The utility model is related to a kind of WIFI module power shutdown circuits.
Background technology
In battery powered application scenario, since WIFI module power consumption is big, need to drop power consumption when not needing its work
To minimum, or available circuit closes the anode power supply of module, circuit is complicated, of high cost or close cathode, but due to the use of crystal
Pipe causes conducting voltage high, easily causes circuit job insecurity.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of WIFI module power shutdown circuit.
The utility model is achieved by the following technical programs.
A kind of WIFI module power shutdown circuit provided by the utility model；It is gone including reset circuit, enabled circuit, power supply
Coupling circuit, power switch circuit；
The reset circuit includes reseting port PA1, and driver U1 is accessed after reseting port PA1 is in parallel with pull down resistor R1
Pin 1, the pull down resistor R1 connect with power supply VCC anodes；
The enabled circuit includes enabled input terminal PA2, and enabled input terminal PA2 is accessed after connecting with pull down resistor R2 and driven
The Enable Pin series connection of dynamic device U1；
The power source deoupling circuit includes power supply VCC, decoupling capacitor C1, decoupling capacitor C2, power supply VCC and driver U1's
VCC pin connects, and power supply VCC after decoupling capacitor C1 and decoupling capacitor C2 parallel connections with ground terminal GND by connecting；
The power switch circuit includes input terminal PA3, and the input terminal PA3 is connect with resistance R3, the rear end of resistance R3
It is connect with the poles G of metal-oxide-semiconductor T1, the poles S and the poles D of metal-oxide-semiconductor T1 are connect with ground terminal GND and driver U1 pins 9 respectively, the T1
The poles G also connect with ground terminal GND by ground resistance R4.
The driver U1 is ESP-07S microcontrollers.
The MOS type number is IPD50N10S3L, and conducting resistance is 15m Ω.
The model CC-0603-50V- of model CC-0805-16V-10 the μ F, decoupling capacitor C2 of the decoupling capacitor C1
0.1μF。
The resistance value of the resistance R1 is 5.1K ω, and the resistance value of resistance R2 is 1K Ω, and the resistance value of resistance R3 is 5.1K Ω, resistance
The resistance value of R4 is 1M Ω.
The beneficial effects of the utility model are：High and low pressure level is inputted by switch tube, is that switching tube quickly controls
WIFI module high-speed switch prevents WIFI module power consumption.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Specific implementation mode
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
A kind of WIFI module power shutdown circuit；Including reset circuit, enabled circuit, power source deoupling circuit, power switch
Circuit；
The reset circuit includes reseting port PA1, and driver U1 is accessed after reseting port PA1 is in parallel with pull down resistor R1
Pin 1, the pull down resistor R1 connect with power supply VCC anodes；
The enabled circuit includes enabled input terminal PA2, and enabled input terminal PA2 is accessed after connecting with pull down resistor R2 and driven
The Enable Pin series connection of dynamic device U1；
The power source deoupling circuit includes power supply VCC, decoupling capacitor C1, decoupling capacitor C2, power supply VCC and driver U1's
VCC pin connects, and power supply VCC after decoupling capacitor C1 and decoupling capacitor C2 parallel connections with ground terminal GND by connecting；
The power switch circuit includes input terminal PA3, and the input terminal PA3 is connect with resistance R3, the rear end of resistance R3
It is connect with the poles G of metal-oxide-semiconductor T1, the poles S and the poles D of metal-oxide-semiconductor T1 are connect with ground terminal GND and driver U1 pins 9 respectively, the T1
The poles G also connect with ground terminal GND by ground resistance R4.
The ports MCU PA1 and R1 forms WIFI module reset circuit；The enabled electricity of the ports MCU PA2 and R2 composition WIFI modules
Road；C1 and C2 forms power source deoupling circuit；The ports MCU PA3,3, R4 and T1 form WIFI module power control circuit, and module needs
When working, the ports MCU PA3 exports high level, and the T1 conductings of driving metal-oxide-semiconductor connect the ground of WIFI module, make its normal work,
When WIFI module does not need work, the ports MCU PA3 exports low level, so that metal-oxide-semiconductor T1 is ended, cuts off the ground of WIFI module
Line makes module not consume electric energy completely.MOS pipe IPD50N10S3L conducting resistances only have 15m Ω, and 3.3V level can be direct
Driving, application are very simple.
The driver U1 is ESP-07S microcontrollers.
The MOS type number is IPD50N10S3L, and conducting resistance is 15m Ω.
The model CC-0603-50V- of model CC-0805-16V-10 the μ F, decoupling capacitor C2 of the decoupling capacitor C1
0.1μF。
The resistance value of the resistance R1 is 5.1K ω, and the resistance value of resistance R2 is 1K Ω, and the resistance value of resistance R3 is 5.1K Ω, resistance
The resistance value of R4 is 1M Ω.
Every place for needing to carry out power remove can apply this circuit, simple and reliable.
Claims (5)
1. a kind of WIFI module power shutdown circuit, it is characterised in that：Including reset circuit, enabled circuit, power source deoupling circuit,
Power switch circuit；
The reset circuit includes reseting port PA1, and drawing for driver U1 is accessed after reseting port PA1 is in parallel with pull down resistor R1
Foot 1, the pull down resistor R1 are connect with power supply VCC anodes；
The enabled circuit includes enabled input terminal PA2, access driver U1 after enabled input terminal PA2 connects with pull down resistor R2
Enable Pin series connection；
The power source deoupling circuit includes power supply VCC, decoupling capacitor C1, decoupling capacitor C2, the VCC of power supply VCC and driver U1
Pin connects, and power supply VCC after decoupling capacitor C1 and decoupling capacitor C2 parallel connections with ground terminal GND by connecting；
The power switch circuit includes input terminal PA3, and the input terminal PA3 is connect with resistance R3, the rear end of resistance R3 and MOS
The poles G of pipe T1 connect, and the poles S and the poles D of metal-oxide-semiconductor T1 are connect with ground terminal GND and driver U1 pins 9 respectively, the poles G of the T1
Also it is connect with ground terminal GND by ground resistance R4.
2. WIFI module power shutdown circuit as described in claim 1, it is characterised in that：The driver U1 is ESP-07S
Microcontroller.
3. WIFI module power shutdown circuit as described in claim 1, it is characterised in that：The metal-oxide-semiconductor T1 models
IPD50N10S3L, conducting resistance are 15m Ω.
4. WIFI module power shutdown circuit as described in claim 1, it is characterised in that：The model of the decoupling capacitor C1
The model CC-0603-50V-0.1 μ F of CC-0805-16V-10 μ F, decoupling capacitor C2.
5. WIFI module power shutdown circuit as described in claim 1, it is characterised in that：The resistance value of the resistance R1 is 5.1K
The resistance value of ω, resistance R2 are 1K Ω, and the resistance value of resistance R3 is 5.1K Ω, and the resistance value of resistance R4 is 1M Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720775313.3U CN207720132U (en) | 2017-06-29 | 2017-06-29 | A kind of WIFI module power shutdown circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720775313.3U CN207720132U (en) | 2017-06-29 | 2017-06-29 | A kind of WIFI module power shutdown circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207720132U true CN207720132U (en) | 2018-08-10 |
Family
ID=63063002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720775313.3U Expired - Fee Related CN207720132U (en) | 2017-06-29 | 2017-06-29 | A kind of WIFI module power shutdown circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207720132U (en) |
-
2017
- 2017-06-29 CN CN201720775313.3U patent/CN207720132U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180810 Termination date: 20200629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |