Voltage clamp regulator

Details Voltage clamp regulator Voltage clamp regulator

1983-07-27

1986-04-01

Salce, Patrick R.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

307566, 323231, 361 56, 361 91, G05F 318

Patent

active

045802068

ABSTRACT:
A 12 volt input is supplied to a timer providing a square wave output with an approximately 50% duty cycle. The output is applied to the bases of a pair of transistors and the collectors of the transistors conduct when a drive motor is in either the forward direction or the reverse direction. During the time that a particular transistor is conducting, its collector current rises to a point of cutoff. At this time, energy stored in a transformer circuit is released to the secondary of the transformer circuit. To regulate the increase in voltage in the secondary, diode clamping is accomplished by a common string of zener diodes connected to the output of the secondaries of th transformer circuits and to the emitters of the transistors. By adding additional zener diodes in the secondary circuits of either of the transformer circuits, a change in the high voltage output for that particular transformer is accomplished.

REFERENCES:
patent: 1883613 (1932-10-01), Devol
patent: 2984780 (1981-05-01), Koletsky
patent: 3091729 (1963-05-01), Schmidt
patent: 3328664 (1967-01-01), Baude
patent: 3430127 (1969-02-01), Weiss
patent: 4162525 (1979-07-01), Epp
patent: 4236198 (1980-11-01), Ohsawa et al.
patent: 4386311 (1983-05-01), Bafaro
patent: 4459498 (1984-07-01), Stengl et al.

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