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1. (WO2017156715) POWER-ON CIRCUIT FOR ON-VEHICLE SECURITY DEVICE

Pub. No.:    WO/2017/156715    International Application No.:    PCT/CN2016/076427
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Wed Mar 16 00:59:59 CET 2016
IPC: H02J 7/00
Applicants: STREAMAX TECHNOLOGY CO, LTD.
深圳市锐明技术股份有限公司
Inventors: FAN, Zhanghua
范章华
Title: POWER-ON CIRCUIT FOR ON-VEHICLE SECURITY DEVICE
Abstract:
A power-on circuit for an on-vehicle security device, the power-on circuit comprising a key state holding circuit, a power supply enabling circuit, a key state notifying circuit, a capacitor discharging circuit, and a self-powering controlling circuit. According to the present invention, pressed-down state information of the key is recorded by means of capacitor charging of the key state holding circuit, the key state information is transmitted to a controller by means of the key state notifying circuit, and the controller is caused to enter a work state by means of the power supply enabling circuit; when the controller detects a valid trigger, the power supply to the controller is held by means of the self-powering controlling circuit, and the capacitor of the key state holding circuit is discharged by means of the capacitor discharging circuit, such that the present invention can more flexibly realize the power on and power off of the on-vehicle security device, and cause the device to effectively enter an energy-saving state in a power-off state.