SYSTEMS AND METHODS FOR DISCHARGING AN INPUT CAPACITANCE

摘要

An electronic device including first and second line inputs, first and second device inputs, a filter circuit, and a switching circuit. The filter circuit has a first input electrically coupled to the first line input, a second input electrically coupled to the second line input, a first output electrically coupled to the first device input, a second output, and at least one capacitor electrically coupling at least one of the first input to the second input or the first output to the second output. The switching circuit has a control input to receive a control signal, and electrically couples the second output to the second device input in response to the control signal having the first state and electrically couples the second output to one of the first input and the first output through a resistor in response to the control signal having the second state.

主权项

1. An electronic device comprising:
a first line input and a second line input; a first device input and a second device input; a filter circuit having a first input electrically coupled to the first line input, a second input electrically coupled to the second line input, a first output electrically coupled to the first device input, and a second output, the filter circuit including at least one capacitor electrically coupling at least one of the first input of the filter circuit to the second input of the filter circuit or the first output of the filter circuit to the second output of the filter circuit; and a switching circuit having a control input to receive a control signal having one of a first state and a second state, the switching circuit being configured to electrically couple the second output of the filter circuit to the second device input in response to the control signal having the first state and to electrically couple the second output of the filter circuit to one of the first input of the filter circuit and the first output of the filter circuit through a resistor in response to the control signal having the second state.