Transient voltage protection circuit for a DC voltage supply

Details Transient voltage protection circuit for a DC voltage supply Transient voltage protection circuit for a DC voltage supply

1995-11-06

1997-02-18

Wong, Peter S.

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

323224, 323282, 361 18, 361111, G05F 1563

Patent

active

056044224

ABSTRACT:
A transient voltage protection circuit for operating a lamp includes input terminals for connection to a supply voltage source which delivers a low-frequency AC voltage. A rectifier is coupled to the input terminals for rectifying the low-frequency AC voltage and has output terminals. A first branch comprising a series arrangement of a breakdown element and a first capacitor interconnects the output terminals and a second branch shunts the first capacitor for discharging the first capacitor. A further capacitor, across which a DC voltage is present during lamp operation, supplies an operating voltage to the lamp. A DC--DC converter is coupled to the output terminals and to the further capacitor and a third branch comprising a series arrangement of a diode and the further capacitor shunts the first capacitor. The DC voltage across the further capacitor does not rise or rises only slightly in the case of two voltage transients in quick succession or a transient having a comparatively high amplitude or a comparatively long duration.

REFERENCES:
patent: 4346431 (1982-08-01), Steigerwald
patent: 4413224 (1983-11-01), Krupka et al.
patent: 4434396 (1984-02-01), Montague
patent: 4491903 (1985-01-01), Montague
patent: 4539617 (1985-09-01), Delaney et al.
patent: 4677348 (1987-06-01), Schweickardt
patent: 4958121 (1990-09-01), Cuomo et al.
patent: 5095261 (1992-03-01), Schoofs

Affiliated with

Also associated with

Rating

Transient voltage protection circuit for a DC voltage supply does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transient voltage protection circuit for a DC voltage supply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transient voltage protection circuit for a DC voltage supply will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1604260