Line powering of auxiliary equipment
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United States of America Patent
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-
Nov 25, 2008
Grant Date -
Mar 23, 2006
app pub date -
Nov 14, 2005
filing date -
Jun 3, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electronics module for powering auxiliary equipment by using power from a line powered remote unit is provided. The electronics module includes one or more current and inrush limiting control circuits, one or more turn on control circuits, and a voltage control summer which operate to control the output voltage from the electronics module to the auxiliary equipment. The electronics module also includes one or more input switch and current limiter circuits, one or more input filters, and a pulse width modulator power stage and output filter circuit which operate to combine power from one or more remote units into a single power output. Additionally, the electronics module includes a fault monitoring circuit for determining if a fault has occurred in the auxiliary equipment.
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