Chongqing University

Star Institute of Intelligent Systems

Db (chongqing) Intelligent Technology Research Institute Co., Ltd.

Chongqing Yingdi Industry (group) Co., Ltd.

Mi Fang

Yongduan Song

Jiawei Chen

Shuaicheng Hou

A detection circuit for open, close and suspension states of a high and low level effective switch in a vehicle. The circuit includes an optocoupler circuit module, a low-level active path module, a high-level active path module, a filtering and debouncing module, a transient suppression module, and a wiring terminal. The optocoupler circuit module is connected to the low-level active path module, the high-level active path module and the low-level active path module are connected in parallel to the filtering and debouncing module, and the filtering and debouncing module is connected to the transient suppression module, and then connected to the external high-level active switch or low-level active switch through the wiring terminal. Whether it is a high-level active switch or a low-level active switch, the detection circuit can distinguish whether the switch is in the closed or suspended state, and the strong and weak voltages are isolated.

Growing community of inventors

Chongqing, China

Mi Fang