Powering-on/off control circuit and electronic equipment with same

A technology of switching machine control and switching circuit, which is applied in the direction of program control, program control, electrical program control, etc. in the sequence/logic controller, which can solve the problem of prolonging the battery charging time of mobile terminals, battery over-discharge protection, and consuming battery current. And other issues

Active Publication Date: 2015-09-09
HYTERA COMM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, running the above program when the system of the mobile terminal is shut down will still continue to consume battery current, thereby generating excessive shutdown leakage current. , on the other hand, excessive leakage current will prolong the ...

Method used

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  • Powering-on/off control circuit and electronic equipment with same
  • Powering-on/off control circuit and electronic equipment with same
  • Powering-on/off control circuit and electronic equipment with same

Examples

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Embodiment Construction

[0019] see figure 1 , is a schematic diagram of a circuit structure of an electronic device in an embodiment of the present invention. The electronic device 10 includes a switch control circuit 20 , a processing circuit 30 and a battery 40 . Wherein, the switch control circuit 20 is electrically connected between the processing circuit 30 and the battery 40 , and is used to control the battery 40 to supply power to the processing circuit 30 .

[0020] Specifically, the switch control circuit 20 includes a switch circuit 21 , a logic circuit 22 , a battery voltage monitoring circuit 23 and a power conversion circuit 24 . Wherein, the switch circuit 21 is electrically connected with the logic circuit 22 and the processing circuit 30 respectively, the logic circuit 22 is electrically connected with the battery voltage monitoring circuit 23, the power conversion circuit 24 and the processing circuit 30 respectively, and the power conversion circuit 24 is connected with the The p...

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PUM

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Abstract

The invention provides a powering-on/off control circuit and a piece of electronic equipment with the same. When a battery voltage monitoring circuit detects that the voltage of a battery is lower than a low threshold voltage, a logic circuit outputs a first enable signal according to a powering-on signal output by a switching circuit when the switching circuit is preset in a powering-on state, a voltage detection signal output by the battery voltage monitoring circuit after battery voltage detection and a power signal output by a processing circuit in response to the voltage detection signal, and a power conversion circuit stops working to cut off power supply of the battery to the processing circuit in response to the first enable signal. When the battery voltage monitoring circuit detects that the voltage of the battery is not lower than a powering-on threshold voltage, the logic circuit outputs a second enable signal, and the power conversion circuit makes the battery supply power to the processing circuit in response to the second enable signal and makes the system powered on. According to the invention, when the system is powered off due to low battery voltage, power supply of the system can be cut off completely to prevent the battery from over-discharge.

Description

technical field [0001] The invention relates to a switch machine control circuit and electronic equipment with the switch machine control circuit. Background technique [0002] When the mechanical switch of the power supply is normally on, the mobile terminal will automatically shut down when the battery power is lower than the system operating voltage, and after shutdown, the specific software inside the system needs to run the corresponding program to monitor the battery voltage, and when the battery voltage is monitored to rise After reaching the system start-up voltage threshold, the control system will automatically start up. [0003] However, running the above-mentioned program when the system of the mobile terminal is shut down will continue to consume battery current, thereby generating excessive shutdown leakage current. On the other hand, excessive leakage current will prolong the battery charging time of the mobile terminal. Furthermore, after the system is shut...

Claims

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Application Information

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IPC IPC(8): G05B19/04
CPCG05B19/0423
Inventor 符昌述梁滢罗辉辉朱德友符雅豪
Owner HYTERA COMM CORP
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