Patrick J Quirk

US Patent:

7471531, Dec 30, 2008

Filed:

Aug 22, 2006

Appl. No.:

11/507798

Inventors:

Matthew Blaha - Holmdel NJ, US
Albert Molina - Alcobendad, ES
Patrick J. Quirk - Huntsville AL, US
Fadi Saibi - Hoboken NJ, US

Assignee:

Agere Systems Inc. - Allentown PA

International Classification:

H02M 7/537

US Classification:

363 97, 363 2113, 363 2116

Abstract:

Disclosed is a method and apparatus that includes a power supply having a primary coil and a secondary coil. The secondary coil generates an output voltage and a feedback voltage related to the output voltage. The feedback voltage is sampled at a time instant that is digitally controllable. The output voltage is determined from the feedback voltage.

US Patent:

7643315, Jan 5, 2010

Filed:

Nov 19, 2008

Appl. No.:

12/313344

Inventors:

Matthew Blaha - Holmdel NJ, US
Albert Molina - Alcobendad, ES
Patrick J. Quirk - Huntsville AL, US
Fadi Saibi - Hoboken NJ, US

Assignee:

Agere Systems, Inc. - Allentown PA

International Classification:

H02M 3/335

US Classification:

363 2113, 363 2116, 363 97

Abstract:

Disclosed is a method and apparatus that includes a power supply having a primary coil and a secondary coil. The secondary coil generates an output voltage and a feedback voltage related to the output voltage. The feedback voltage is sampled at a time instant that is digitally controllable. The output voltage is determined from the feedback voltage.

US Patent:

7685440, Mar 23, 2010

Filed:

Mar 6, 2006

Appl. No.:

11/369057

Inventors:

Matthew Blaha - Holmdel NJ, US
Patrick J. Quirk - Huntsville AL, US

Assignee:

Agere Systems Inc. - Allentown PA

International Classification:

G06F 1/26

US Classification:

713300, 710303

Abstract:

In one embodiment, the invention is an apparatus (e. g. , an Ethernet switch) having an isolated side and a line side. A line-side connector is connectable to a cable. An isolated-side physical-layer module (1) is electrically coupled to the connector via a signal-isolation transformer and (2) processes signals transmitted over the cable. A line-side power conditioning module (1) is electrically coupled to an isolated-side power switcher via a power-isolation transformer that converts an AC power signal received from the power switcher into a transformed AC power signal and (2) converts the transformed AC power signal into a cable power signal to be supplied via the connector to the cable in order to power a cable-powered device connected to the cable. An isolated-side control module performs a detection function in which the control module determines whether or not a cable-powered device is connected to the cable.

US Patent:

7843670, Nov 30, 2010

Filed:

Sep 29, 2006

Appl. No.:

11/536770

Inventors:

Matthew Blaha - Holmdel NJ, US
Luis de la Torre - Daganzo de Arriba, ES
Patrick J. Quirk - Huntsville AL, US
Fadi Saibi - Hoboken NJ, US

Assignee:

Agere Systems Inc. - Allentown PA

International Classification:

H02H 7/00

US Classification:

361 18, 361 931

Abstract:

One embodiment monitors a line-side electrical current provided by a power sourcing equipment (PSE) port to a powered device (PD), the PSE port having a power-isolation transformer with a primary coil on an isolated side and a secondary coil on a line side. A switching signal having a switching period and a duty cycle is applied to the primary coil of the power-isolation transformer. A value is determined for an electrical current on the isolated side of the power-isolation transformer, conversion is performed between a line-side electrical current value Iand a corresponding isolated-side peak-current value I, and the line-side electrical current is indirectly monitored based on the determined isolated-side current value.

US Patent:

8132027, Mar 6, 2012

Filed:

Jun 16, 2006

Appl. No.:

11/917261

Inventors:

Matthew Blaha - Holmdel NJ, US
Luis de La Torre - Daganzo de Arriba, ES
Alan L. Ellis - San Jose CA, US
Patrick J. Quirk - Huntsville AL, US

Assignee:

Agere Systems Inc. - Allentown PA

International Classification:

G06F 1/00

US Classification:

713300

Abstract:

In one embodiment, a powered device (PD) () has a PHY module () and a media access controller () (MAC), the PD () adapted to connect to power sourcing equipment (PSE) via a cable, () where the PD () is adapted to communicate with and receive power from the PSE via the cable, in accordance with the Power-over-Ethernet (PoE) standard. The PD () extracts () from the cable () a DC signal used to power the PD without using a transformer. Capacitors () located in the signal paths between the MAC () and the cable () support electrical isolation of the MAC ().