Peter H Myers

US Patent:

8537569, Sep 17, 2013

Filed:

Jun 28, 2010

Appl. No.:

12/824842

Inventors:

Peter J. Myers - Dunedin FL, US
Joseph Paul Chobol - Morrisville NC, US

Assignee:

Cree, Inc. - Durham NC

International Classification:

H02M 3/335
H02H 7/10
H02J 7/00

US Classification:

363 17, 363 50, 320166

Abstract:

A circuit includes a detector configured to detect a state of a power supply including an energy storage component and to generate a control signal responsive to the state of the power supply, a dissipating component, and a switch configured to controllably couple the dissipating component to the energy storage component in response to the control signal output by the detector. Methods of operating a power supply including an energy storage component and a dissipating component are disclosed. The methods include monitoring the power supply to determine if the power supply may be active, and, in response to determining that the power supply may be inactive, coupling the dissipating component to the energy storage component to dissipate energy from the energy storage component.

US Patent:

20110234123, Sep 29, 2011

Filed:

Jun 28, 2010

Appl. No.:

12/824819

Inventors:

Peter J. Myers - Dunedin FL, US
Joseph Paul Chobot - Morrisville NC, US

International Classification:

H05B 37/02
G05F 1/10

US Classification:

315307, 323282

Abstract:

A circuit for altering a level of impedance presented to a power supply including a power supply line includes an energy dissipating circuit, a detection circuit configured to generate a control signal indicative of a power consumption level in a load circuit coupled to the power supply line, and an activation circuit configured to controllably couple the energy dissipating circuit to the power supply line in response to the control signal. Methods of operating a solid state lighting apparatus including a power supply and a solid state lighting device coupled to the power supply include detecting a level of power consumption by the solid state lighting device, and coupling an energy dissipating circuit to the power supply in response to the level of power consumption by the solid state lighting device falling below a threshold level.