Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Patent
1992-06-24
1993-10-19
Sterrett, Jeffrey
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
363 97, H02M 328, H02M 748
Patent
active
052551776
ABSTRACT:
A high-voltage power source control device comprises a pulse generating section for holding duration data and periodically generating a switching pulse of a duration corresponding to the duration data, a monitor circuit for generating a monitor voltage corresponding to an output voltage of a high voltage power source, an A/D converter for outputting monitor voltage data based on a monitor voltage from the monitor circuit, and a processing section for deriving as adjustment data a difference between the monitor voltage data from the A/D converter and the reference voltage data, adding the adjustment data to the duration data, and setting the result of addition into the pulse generating section as new duration data to change the duty ratio of the switching pulse, thereby maintaining the output voltage of the high voltage power source at or near the reference voltage. The processing section in the control device has a shift register for decreasing the adjustment data at a preset rate.
REFERENCES:
patent: 4595976 (1986-06-01), Parro, II
patent: 4686340 (1987-08-01), Fukasawa
patent: 4825028 (1989-04-01), Smith
patent: 5047910 (1991-09-01), Levran et al.
patent: 5055993 (1991-10-01), Miyata et al.
Sterrett Jeffrey
Tokyo Electric Co. Ltd.
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