Inverter apparatus

Details Inverter apparatus Inverter apparatus

1987-05-13

1988-03-01

Salce, Patrick R.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 80, 363 98, 363132, 363136, 361 83, 361100, H02H 7122

Patent

active

047290846

ABSTRACT:
An inverter having an output connected to a load through a reactor and an output filter capacitor terminal voltage of the capacitor is monitored, and an interlock operation for interrupting the delivery of the inverter transistor drive signals is released when the terminal voltage does not exceed a predetermined level. When the interlock operation for cutting off the drive signals of the transistors has started and continued for a predetermined time, it is further continued when the terminal voltage of the output filter capacitor does not drop below a set level and is released for the first time when the output filter capacitor is sufficiently discharged to render the terminal voltage the set level or below.

REFERENCES:
patent: 3919621 (1975-11-01), Wechsler
patent: 4428016 (1984-01-01), Brasfield
patent: 4597026 (1986-06-01), Santurtun et al.

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