Electronic variable speed drive

Details Electronic variable speed drive Electronic variable speed drive

1995-08-14

1997-04-01

Krishnan, Aditya

Electric power conversion systems

Current conversion

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

361728, 361709, 361734, H02B 104

Patent

active

056173075

ABSTRACT:
An electronic variable speed device which includes a rectifier supplied with an alternating current, at least one capacitor and an inverter supplied with a DC voltage from the rectifier to the at least one capacitor. The inverter includes plural solid state switch power modules which produce an AC voltage. A plastic material internal enclosure encloses the power modules and a heatsink is connected to the power modules. An electrical connection board electrically connects the power modules to the at least one capacitor such that the heatsink, power modules, at least one capacitor and electrical connection board form a non-sealed chamber containing the power modules. An electronic control system is connected to the electrical connection board to control the power modules.

REFERENCES:
patent: 4908738 (1990-03-01), Kobari et al.

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