Method and device for controlling the working points of a series

Details Method and device for controlling the working points of a series Method and device for controlling the working points of a series

1994-03-21

2000-01-04

Riley, Shawn

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363132, H02M 324

Patent

active

060117087

ABSTRACT:
A method and a device may be used for controlling the working points of a series-resonant-circuit inverter. The frequency of the inverter is controlled as a manipulated variable in dependence upon a defined phase-angle system deviation in such a way that a determined phase-angle actual value of a measurable state variable of the load circuit, whose phase-frequency characteristic has a monotonically falling curve, corresponds to a specifiable phase-angle setpoint value. Thus, a method and a device are implemented for controlling the working points of a series-resonant-circuit inverter, by which means the operating range prescribed for the series-resonant-circuit inverter is detected and kept stable independently of parameter fluctuations of the resonant circuit elements.

REFERENCES:
patent: 4951185 (1990-08-01), Schutten et al.
patent: 4969076 (1990-11-01), Schutten et al.
patent: 5285372 (1994-02-01), Huynh et al.

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