Portable power unit

Details Portable power unit Portable power unit

1998-09-24

1999-08-24

Nguyen, Matthew

Electric power conversion systems

Cascaded or combined, diverse conversions in which the...

Combined phase and frequency conversion

363136, H02M 7521

Patent

active

059432217

ABSTRACT:
A portable power unit is provided. A desired waveform signal indicative of a desired waveform having a desired frequency is generated. Switching control of a variable control bridge circuit is performed based on the desired waveform signal to cause the variable control bridge circuit to generate an alternating current output. A waveform of the alternating current output is detected to generate an output waveform signal indicative of the detected waveform of the alternating current output. A power factor is detected by comparing the desired waveform signal and the output waveform signal to generate a power factor signal indicative of the detected power factor. Voltage of the alternating current output is controlled based on the power factor signal.

REFERENCES:
patent: 4574340 (1986-03-01), Baker
patent: 4992920 (1991-02-01), Davis
patent: 5426578 (1995-06-01), Nakamura et al.
patent: 5717293 (1998-02-01), Sellers

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