Alessandro A Cervone

Address:

512 Dove Lndg, Royse City, TX 75189

VIN:

5NMSH13EX7H086796

Make:

HYUNDAI

Model:

SANTA FE

Year:

2007

US Patent:

61305294, Oct 10, 2000

Filed:

Dec 22, 1999

Appl. No.:

9/469672

Inventors:

Joao Luiz Andres - Mesquite TX
Alessandro A. Cervone - Mesquite TX
Juan Niglio - Garland TX
Loveday Haachitaba Mweene - Mesquite TX

Assignee:

Lucent Technologies, Inc. - Murray Hill NJ

International Classification:

G05F 500
G05F 140

US Classification:

323303

Abstract:

In a switching power supply generating at least a first output voltage and a second output voltage, the second output voltage, being of lower potential is applied to a linear regulator, the power supply further including a storage capacitor on the first output, a holdover circuit includes a comparator circuit for monitoring the first output voltage and for generating an output signal when the first output voltage decreases below predetermined value. A switch is connected to the storage capacitor, the comparator circuit, and the linear regulator. The switch is activated by the comparator output signal and applies the voltage stored in the storage capacitor to the linear regulator. A clamp circuit is connected to the switch for limiting the magnitude of the voltage from the storage capacitor to the linear regulator when the switch is activated.