The embodiment of the invention relates to the technical field of automotive electronics, in particular to a capacitance door handle signal acquisition circuit, a door handle device and a control method. A signal output circuit and a capacitance trigger circuit are arranged to replace a comparator in the prior art, and the signal output circuit outputs a level signal to a door handle controller according to a door handle signal of the capacitance trigger circuit. The first input power supply can directly use VBAT voltage, an LDO power supply can be saved, the value range of each circuit component of the capacitor trigger circuit is not high, the precision requirements of resistors and MOS tubes are not high, the selection range of the devices is wide, cost optimization can be carried out, and the influence of component parameters is small; the implementation mode and the implementation logic are simple; the generation of the quiescent current is only the configuration consumption of the resistor, and the quiescent current can be configured to be smaller.

    本发明实施例涉及汽车电子技术领域,具体涉及电容门把手信号采集电路、门把手装置及控制方法;通过设置信号输出电路、电容触发电路,替代现有技术中的比较器,信号输出电路根据所述电容触发电路的门把手信号,向所述门把手控制器输出电平信号。第一输入电源可以直接使用VBAT电压,可以节省LDO电源,电容触发电路的各电路元器件的取值范围不高,电阻、MOS管的精度要求也不高,器件的选择范围较广,可以做成本优化,受元器件参数的影响较小;实现方式及实现逻辑简单;静态电流的产生只是电阻的配置消耗,可以将静态电流配置的较小。


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    Title :

    Capacitance door handle signal acquisition circuit, door handle device and control method


    Additional title:

    电容门把手信号采集电路、门把手装置及控制方法


    Contributors:

    Publication date :

    2024-02-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H03K PULSE TECHNIQUE , Impulstechnik / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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