AC current source circuit for converting DC voltage into AC curr

Details AC current source circuit for converting DC voltage into AC curr AC current source circuit for converting DC voltage into AC curr

1997-05-30

1999-04-06

Nguyen, Matthew

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 57, H02M 7521, H02M 7122

Patent

active

058926755

ABSTRACT:
An AC current source circuit converts a DC input voltage into an AC output current, and comprises a chopper circuit for converting a DC input voltage into a chopper voltage; and an inverter for converting the chopper voltage into an output AC current of a predetermined frequency. The inverter comprises at least four switch elements, and clamp-type snubber circuits corresponding to each of the switch elements are provided. The snubber circuit releases electric charges to the input terminal of the DC input voltage of the chopper circuit. The chopper circuit is connected to the inverter through a DC reactor. The DC input voltage is converted into a DC current by the chopper circuit and the DC reactor and transmitted to the inverter.

REFERENCES:
patent: 4849873 (1989-07-01), Vanderheist
patent: 4876635 (1989-10-01), Park et al.
patent: 5260607 (1993-11-01), Kinbara
patent: 5303140 (1994-04-01), Shimizu
patent: 5710698 (1998-01-01), Lai et al.

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