Method of filtering low frequency components from power lines

Details Method of filtering low frequency components from power lines Method of filtering low frequency components from power lines

2005-10-27

2010-11-30

Nguyen, Duc (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S127100, C455S574000, C363S015000, C363S021010

Reexamination Certificate

active

07844304

ABSTRACT:
A power supply for a communications device, including a controllable regulator that varies power drawn from a power input according to communications requirements of the communications device. The controllable regulator increases power drawn from the power input immediately before an increase of power is required by the communications device when a magnitude of a rate of change of required power exceeds a predetermined level. An active filter is connected to an output of the controllable regulator. The active filter is controlled to variably divert power that is output from the controllable regulator in excess of what is required by the communications device, wherein electromagnetic emissions resulting from the rate of change of power are reduced.

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