DC/AC power converting apparatus including DC component remover

Details DC/AC power converting apparatus including DC component remover DC/AC power converting apparatus including DC component remover

1989-09-21

1991-04-30

Stephan, Steven L.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 97, 363 39, H02M 07537, H02M 112

Patent

active

050124005

ABSTRACT:
In a DC/AC power converting apparatus, a DC component is removed from an AC output. The DC/AC power converting apparatus includes: a DC source for supplying DC power; a DC/AC inverter circuit for inverting the DC power into AC power; a transformer for transforming the AC power to obtain desirable AC power; a detector for detecting an output signal derived from the DC/AC inverter circuit to produce an output detection signal; a calculation circuit for performing a control calculation to enable the output detection signal to follow a reference signal, whereby a first output instruction signal is derived; and, a DC component remover for removing a DC component from the first output instruction signal to derive a second output instruction signal inverting operation of the DC/AC inverter circuit is controlled based upon the second output instruction signal to prevent DC magnetization of the transformer.

REFERENCES:
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patent: 4739464 (1988-04-01), Nishihiro et al.
patent: 4803611 (1989-02-01), Sashida et al.
patent: 4816981 (1989-03-01), Nishihiro et al.
patent: 4882120 (1989-11-01), Roe et al.
patent: 4939633 (1990-07-01), Rhodes et al.

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