| US 7,456,522 B2 | ||
| Line powering of auxiliary equipment | ||
| Joel Priest, Raleigh, N.C. (US) | ||
| Assigned to ADC DSL Systems, Inc., Eden Prairie, MN (US) | ||
| Filed on Nov. 14, 2005, as Appl. No. 11/272,653. | ||
| Application 11/272653 is a division of application No. 10/162494, filed on Jun. 03, 2002, granted, now 6,992,404. | ||
| Prior Publication US 2006/0061928 A1, Mar. 23, 2006 | ||
| Int. Cl. H02J 1/00 (2006.01) | ||
| U.S. Cl. 307—80 [379/413] | 9 Claims |
| 3. An electronics module, comprising:
a control circuit, comprising:
one or more current and inrush limiting control circuits adapted to receive power from one or more communication units, the
communication units powered from at least one wire that carries data and power signals;
one or more turn on control circuits adapted to receive an on signal from at least one of the one or more communication units;
and
a voltage control summer adapted to receive a voltage select signal from each of the one or more communication units;
an input power sharing circuit, comprising:
one or more input switch and current limiter circuits coupled to at least one of the one or more current and inrush limiting
control circuits;
one or more input filters coupled to at least one of the one or more input switch and current limiter circuits; and
a pulse width modulator power stage and output filter circuit coupled to each of the one or more input filters, wherein the
pulse width modulator power stage and output filter circuit provides power to auxiliary equipment at varying power levels;
a fault monitoring circuit; and
wherein the voltage control summer controls a voltage output to the pulse width modulator power stage and output filter circuit.
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