CN207367149U - One kind simply powers on automatic boot circuit - Google Patents
One kind simply powers on automatic boot circuit Download PDFInfo
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- CN207367149U CN207367149U CN201721215293.0U CN201721215293U CN207367149U CN 207367149 U CN207367149 U CN 207367149U CN 201721215293 U CN201721215293 U CN 201721215293U CN 207367149 U CN207367149 U CN 207367149U
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Abstract
Automatic boot circuit field is the utility model is related to, it is more particularly to a kind of simply to power on automatic boot circuit.The circuit includes power on signal input channel, starting-up signal output module, starting-up signal shut-off module, one end of the power on signal input channel and starting-up signal output module, its other end sets and is connected with system power supply, the starting-up signal output module is connected with power supply managing chip PMIC, one end of the starting-up signal shut-off module is in parallel with power on signal input channel, its other end is connected with MCU.This programme is suitable for without manually on duty, and system needs to power on the application field with regard to Auto Power On work, and it is simple to possess circuit, and reliability is high, it is of low cost the characteristics of.In the case where abnormal power-down such as restores electricity at the abnormal conditions again, system can timely automated start work, the loss produced due to power-off is alleviated or avoided.
Description
Technical field
Automatic boot circuit field is the utility model is related to, it is more particularly to a kind of simply to power on automatic boot circuit.
Background technology
Android SOC mainboards based on platforms such as MTK, Rockchip, it is general to can be not only used for tablet computer, smart mobile phone etc.
Logical consumer electronics field, can be also used for the fields such as industrial monitoring, data monitoring, smart home, when for these fields, lead to
Often need system electrification just energy Auto Power On work, such as refrigerator.And the scheme of existing market is more defeated using application-specific integrated circuit
Go out starting-up signal, cost is higher.
Utility model content
The utility model provides one kind and simply powers on automatic boot circuit, it is desirable to provide one kind upon power-up of the system, can
Starting-up signal is exported immediately to system, after system boot starts, closes the circuit of starting-up signal.
The utility model provides one kind and simply powers on automatic boot circuit, including power on signal input channel, starting-up signal
Output module, starting-up signal shut-off module, one end and the starting-up signal output module of the power on signal input channel, its is another
End sets and is connected with system power supply, and the starting-up signal output module is connected with power supply managing chip PMIC, the start
One end of signal shut-off module is in parallel with power on signal input channel, its other end is connected with MCU.
As further improvement of the utility model, the power on signal input channel includes resistance R1, resistance R2, capacitance
C1, described resistance R1 one end connect resistance R2, capacitance C1, starting-up signal shut-off module, starting-up signal output module respectively, its is another
One end is connected with system power supply, the other end of the resistance R2, another termination GND of capacitance C1.
As further improvement of the utility model, the resistance value of the resistance R1 is 47K.
As further improvement of the utility model, the resistance value of the resistance R2 is 47K.
As further improvement of the utility model, the capacitance of the capacitance C1 is 10UF.
As further improvement of the utility model, the starting-up signal output module includes metal-oxide-semiconductor Q1, the metal-oxide-semiconductor
The grid of Q1 is connected with resistance R1, its connection power supply managing chip PMIC that drains, its source electrode meets GND.
As further improvement of the utility model, the starting-up signal shut-off module includes triode Q2, resistance R3, electricity
R4 is hindered, the drain electrode of the triode Q2 is connected with resistance R1, its grid connects resistance R3, one end of resistance R4, its source electrode respectively
The other end, the GND of resistance R4, the other end connection MCU of the resistance R3 are connected respectively.
As further improvement of the utility model, the resistance value of the resistance R3 is 1K.
As further improvement of the utility model, the resistance value of the resistance R4 is 100K.
The beneficial effects of the utility model are：Suitable for no manually on duty, system needs to power on just to open automatically this programme
Fields such as the application field of machine work, such as industrial monitoring, data monitoring, smart home etc..It is simple to possess circuit, reliability is high,
The characteristics of of low cost.In the case where abnormal power-down such as restores electricity at the abnormal conditions again, system can timely automated start work, mitigate or
Avoid the loss produced due to power-off.
Brief description of the drawings
Fig. 1 is a kind of simple circuit diagram for powering on automatic boot circuit of the utility model.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.
As shown in Figure 1, one kind of the utility model is simple to power on automatic boot circuit, including power on signal input channel 1,
Starting-up signal output module 2, starting-up signal shut-off module 3, one end and the starting-up signal output module of power on signal input channel 1
2, its other end sets and is connected with system power supply, and starting-up signal output module 2 is connected with power supply managing chip PMIC, start
One end of signal shut-off module 3 is in parallel with power on signal input channel, its other end is connected with MCU.
Power on signal input channel 1 includes resistance R1, resistance R2, capacitance C1, and resistance R1 one end connects resistance R2, electricity respectively
Holding C1, starting-up signal shut-off module, starting-up signal output module, its other end is connected with system power supply, the other end of resistance R2,
Another termination GND of capacitance C1.The resistance value of resistance R1 is 47K, and the resistance value of resistance R2 is 47K, and the capacitance of capacitance C1 is 10UF.
Starting-up signal output module 2 includes metal-oxide-semiconductor Q1, and the grid of metal-oxide-semiconductor Q1 is connected with resistance R1, its connection system that drains
Power management chip PMIC, its source electrode meet GND.
Starting-up signal shut-off module 3 includes drain electrode and the resistance R1 companies of triode Q2, resistance R3, resistance R4, triode Q2
Connect, its grid connects resistance R3, one end of resistance R4 respectively, its source electrode connects the other end of resistance R4, GND, resistance R3 respectively
The other end connection MCU.The resistance value of R3 is 1K.The resistance value of resistance R4 is 100K.
The structure of the technical program includes power on signal input channel 1, starting-up signal output module 2, starting-up signal shut-off
Module 3.Wherein power on signal input channel 1 is connected on external system power supply, and starting-up signal output module 2 is connected to system power supply pipe
The POWER_KEY starting-up signal input ports of chip PMIC are managed, the input of starting-up signal shut-off module 3 terminates to MCU master controls
On GPIO mouths.
The operation principle of this circuit is：
When system electrification and when being also not powered on, MCU does not start to work also, and the GPIO mouths of MCU are high-impedance state, start letter
The input pickup resistance R3 of number shut-off module 3 is not inputted, and the drain electrode of 3 feet of triode Q2 will not be pulled low, level SYSTEM_
POWER voltages, the G poles input high level of metal-oxide-semiconductor Q1, the drain electrode of 3 feet are pulled low, and power management chip PMIC detects start letter
Number, each road power supply of other modules of beginning output system, system starts to start.After system starts, by software to MCU's
GPIO mouthfuls of advance configurations, GPIO_POWER_LOCK keeps output high level after making system startup, drags down 3 foot collection of triode
Electrode, at this time the G of metal-oxide-semiconductor Q1 extremely low levels, metal-oxide-semiconductor Q1 will end, equivalent to POWER keys have been unclamped, complete start.
After system electrification, power on signal is converted to starting-up signal and is input to PMIC by starting-up signal output module 2, and system opens
After work(, starting-up signal is turned off after starting-up signal turns off module 3 by the cut-off signals of system oneself output starting-up signal, so that
The normal startup of completion system.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (9)
1. one kind simply powers on automatic boot circuit, it is characterised in that including power on signal input channel, starting-up signal output mould
Block, starting-up signal shut-off module, one end and the starting-up signal output module of the power on signal input channel, its other end are set simultaneously
It is connected with system power supply, the starting-up signal output module is connected with power supply managing chip PMIC, and the starting-up signal closes
One end of disconnected module is in parallel with power on signal input channel, its other end is connected with MCU.
2. according to claim 1 simply power on automatic boot circuit, it is characterised in that the power on signal input channel
Including resistance R1, resistance R2, capacitance C1, described resistance R1 one end connects resistance R2, capacitance C1, starting-up signal shut-off mould respectively
Block, starting-up signal output module, its other end are connected with system power supply, the other end, the other end of capacitance C1 of the resistance R2
Meet GND.
3. according to claim 2 simply power on automatic boot circuit, it is characterised in that the resistance value of the resistance R1 is
47K。
4. according to claim 2 simply power on automatic boot circuit, it is characterised in that the resistance value of the resistance R2 is
47K。
5. according to claim 2 simply power on automatic boot circuit, it is characterised in that the capacitance of the capacitance C1 is
10UF。
6. according to claim 2 simply power on automatic boot circuit, it is characterised in that the starting-up signal output module
Including metal-oxide-semiconductor Q1, the grid of the metal-oxide-semiconductor Q1 is connected with resistance R1, its connection power supply managing chip PMIC that drains, its source
Pole meets GND.
7. according to claim 2 simply power on automatic boot circuit, it is characterised in that the starting-up signal turns off module
Including triode Q2, resistance R3, resistance R4, the drain electrode of the triode Q2 is connected with resistance R1, its grid connects resistance respectively
One end of R3, resistance R4, its source electrode connect the other end of resistance R4, GND, the other end connection MCU of the resistance R3 respectively.
8. according to claim 7 simply power on automatic boot circuit, it is characterised in that the resistance value of the resistance R3 is
1K。
9. according to claim 7 simply power on automatic boot circuit, it is characterised in that the resistance value of the resistance R4 is
100K。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721215293.0U CN207367149U (en) | 2017-09-21 | 2017-09-21 | One kind simply powers on automatic boot circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721215293.0U CN207367149U (en) | 2017-09-21 | 2017-09-21 | One kind simply powers on automatic boot circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207367149U true CN207367149U (en) | 2018-05-15 |
Family
ID=62348956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721215293.0U Active CN207367149U (en) | 2017-09-21 | 2017-09-21 | One kind simply powers on automatic boot circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207367149U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109542199A (en) * | 2018-11-26 | 2019-03-29 | 广东天波信息技术股份有限公司 | The auto power on device of automatic boot circuit and Android system |
| CN110716757A (en) * | 2019-10-18 | 2020-01-21 | 展讯通信（深圳）有限公司 | Starting device, power management chip and electronic equipment |
| CN111381655A (en) * | 2018-12-29 | 2020-07-07 | 浙江华创视讯科技有限公司 | Electronic equipment and power-on control method |
-
2017
- 2017-09-21 CN CN201721215293.0U patent/CN207367149U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109542199A (en) * | 2018-11-26 | 2019-03-29 | 广东天波信息技术股份有限公司 | The auto power on device of automatic boot circuit and Android system |
| CN111381655A (en) * | 2018-12-29 | 2020-07-07 | 浙江华创视讯科技有限公司 | Electronic equipment and power-on control method |
| CN111381655B (en) * | 2018-12-29 | 2024-03-22 | 浙江华创视讯科技有限公司 | Electronic equipment and power-on control method |
| CN110716757A (en) * | 2019-10-18 | 2020-01-21 | 展讯通信（深圳）有限公司 | Starting device, power management chip and electronic equipment |
| CN110716757B (en) * | 2019-10-18 | 2022-09-06 | 展讯通信（深圳）有限公司 | Starting device, power management chip and electronic equipment |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 Meisheng Huigu Science Park, No. 83 Dabao Road, 33 District, Shanghe Street, Baoan District, Shenzhen City, Guangdong Province, 5 4th Floors of Meigu, 5 2nd Floors-2 of Meigu, 6 2nd Floors-2 of Meigu and 6 4th Floors of Meigu Patentee after: EMDOOR DIGITAL TECHNOLOGY Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Baoan District Xin'an Street Dabao Road No. 49-1 campoloy building 6 floor Patentee before: EMDOOR DIGITAL TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 901, building 1, No. 9, Jinxiu Middle Road, Laokeng community, Longtian street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: EMDOOR DIGITAL TECHNOLOGY Co.,Ltd. Address before: 518000 4th floor, building 5, building 2-2, building 6, building 2-2, building 6, building 4, Meisheng Huigu Science Park, 83 Dabao Road, Shanghe community, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: EMDOOR DIGITAL TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |