Voltage balancing circuit

Details Voltage balancing circuit Voltage balancing circuit

1990-11-01

1992-05-05

Stephan, Steven L.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

363 95, 307 58, 307 82, 307103, H02M 744

Patent

active

051113767

ABSTRACT:
Prior voltage balancers for three-phase inverters are useful only with inverters which are not in wide use today. In order to overcome this problem, a voltage balancing circuit for a commonly used inverter balances N phase voltages produced on N output lines. The circuit includes switch controllers coupled to the N output lines for sensing the magnitude of each phase voltage and N-1 voltage combining circuits responsive to the switch controllers and coupled to N-1 output lines for modifying the voltage magnitudes on the N-1 output lines whereby the N phase voltages are maintained within a range of voltage magnitudes.

REFERENCES:
patent: 3354376 (1967-11-01), Corey et al.
patent: 3876923 (1975-04-01), Humphrey et al.
patent: 3993943 (1976-11-01), Bratton et al.
patent: 4062057 (1977-12-01), Perkins et al.
patent: 4519022 (1985-05-01), Glennon

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