Current source sine wave inverter

Details Current source sine wave inverter Current source sine wave inverter

1983-10-17

1985-02-26

Wong, Peter S.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 98, 363132, H02H 7122

Patent

active

045021066

ABSTRACT:
An n-phase current source inverter for developing n-phase AC power from DC power generated by a DC source having first and second terminals each coupled to the inverter through first and second bus lines, respectively, including a choke coil connected between the first DC bus line and a DC rail of the inverter. A switch is coupled between the DC rail and the second bus line and means are included for sensing the current level through the choke coil when the inverter is on. Means are connected between the sensing means and the switch for closing the switch when the inverter is off or when the inverter is disconnected from the DC source to maintain the current through the choke coil at a level sufficient to provide current to the load while maintaining the voltage at the output of the inverter at a regulated level.

REFERENCES:
patent: 3737755 (1973-06-01), Calkin et al.
patent: 3742330 (1973-06-01), Hodges et al.
patent: 3829754 (1974-08-01), Rettig
patent: 3930194 (1975-12-01), Walker
patent: 4099225 (1978-07-01), Nygaard

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