Low harmonic current and fault tolerant power supply

Details Low harmonic current and fault tolerant power supply Low harmonic current and fault tolerant power supply

1990-09-18

1992-02-11

Stephan, Steven L.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

363 67, 363143, H02M 708, H02M 704

Patent

active

050880195

ABSTRACT:
A fault tolerant power supply comprises a first rectifier and a second rectifier with a boost circuit for correcting line current harmonics. The second rectifier, the boost circuit and output diodes are connected in parallel with the first rectifier. A capacitor circuit is charged through the second rectifier and boost converter when a 240 volt line input is present, but the circuit is charged through the first rectifier when a 120 volt line input is present. With failure of the boost converter circuit or with removal of the boost converter circuit from the system, the capacitor circuit is charged through the first rectifier.

REFERENCES:
patent: 4437146 (1984-03-01), Carpenter
patent: 4555753 (1985-11-01), Takahashi
patent: 4622629 (1986-11-01), Glennon
patent: 4713554 (1987-12-01), Henderson
patent: 4845607 (1989-07-01), Nakao et al.
patent: 4933832 (1990-06-01), Schneider et al.
patent: 4937731 (1990-06-01), Konopka
patent: 4940929 (1990-07-01), Williams

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