Circuit for reducing electromagnetic interference noise

摘要

Disclosed is a circuit for reducing EMI noise in a driver IC including at least one or more input ports, and at least one or more output ports, the circuit including a power unit connected to any one of the input ports to output a current to the driver IC, and at least one or more resistors arranged in series between the at least one or more output ports of the driver IC and an output terminal connecting an exterior device operated by the driver IC.

主权项

1. A circuit for reducing an EMI noise in a driver IC including one or more input ports, and one or more output ports, the circuit comprising:
a power unit connected to any one of the input ports to output a current to the driver IC; and one or more resistors arranged in series between the one or more output ports of the driver IC and an output terminal connecting an exterior device operated by the driver IC, wherein the driver IC has at least two input ports and two of the input ports of the driver IC inhibit oscillation of the current inputted from the power unit, wherein the power unit comprises: a power input unit; a first capacitor unit connectively interposed between the power input and a ground for filtering a low frequency noise component of the current inputted from the power input unit; and a second capacitor unit connectively interposed between the power input unit and the ground for filtering a high frequency component of the current inputted from the power input unit.