Patent ID: 9332613
Filing Date: 2016-05-03
CPC Classification: H02H,H05B

Claim Text:
1. A current limiter circuit comprising: an input to be coupled to receive an input signal representative of a rectified line voltage; a variable impedance circuit coupled between the input and an output of the current limiter circuit, wherein an impedance of the variable impedance circuit is varied in response to a control signal; a surge control circuit coupled to the input to sense a surge in the input signal and to increase the impedance of the variable impedance circuit by adjusting the control signal in response to the surge; and a damper control circuit coupled to adjust the control signal such that the impedance of the variable impedance circuit is increased for a portion of a period of the input signal and is decreased for a remainder of the period of the input signal, wherein the portion of the period of the input signal is less than the period of the input signal.