Uninterruptible power supply

Details Uninterruptible power supply Uninterruptible power supply

1990-09-26

1992-12-01

Stephan, Steven L.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 97, 363131, 307 46, 307 66, H02M 3335

Patent

active

051684365

ABSTRACT:
An electronic switching power supply (10) is adapted to provide uninterrupted power during transient glitches in a voltage input received from a primary power source. The power supply (10) comprises a transformer (12) having two primary windings (WP1, WP2). Current flow through the first primary (WP1) is enabled during normal operation while current flow through the second primary (WP2) is disabled. When a transient glitch in the voltage input is sensed, current flow from a storage capacitor (126) through the second primary (WP2) is enabled.

REFERENCES:
patent: 4593213 (1986-06-01), Vesce et al.
patent: 4719550 (1988-01-01), Powell et al.
patent: 4745299 (1988-05-01), Eng et al.
patent: 4748342 (1988-05-01), Dij Kmans
patent: 4763014 (1988-08-01), Model et al.
patent: 4788451 (1988-11-01), Stoet
patent: 4916329 (1990-04-01), Dang et al.
Tech. Paper Entitled "Current Mode Controlled Bidirectional Flyback Converter", Written By K. Venkatesan Dated Jun. 26, 1989.

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