Device for the generation of regulated and/or adjustable direct

Details Device for the generation of regulated and/or adjustable direct Device for the generation of regulated and/or adjustable direct

1984-04-16

1986-06-03

Wong, Peter S.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 41, 320 9, 323241, 323283, H02P 1324, G05F 144

Patent

active

045933480

ABSTRACT:
A device is described for the generation of drive signals for thyristors or power transistors in circuits for the energy supply of apparatuses and installations with regulated and/or adjustable direct voltages or direct currents. In systems with a master or controlling computer there serves as desired value giver a digital memory, which makes available the calculated desired values as a binary number on its output, while as actual-value giver there serves a binary counter which counts the beat impulses of the computer, in which system a comparison circuit on equality of the numbers triggers an impulse the time beginning of which corresponds to the ingate angle or its duration to the impulse width of a pulse-width modulated signal. A control device controls the reading of the desired values into the memory and of the actual values into the counter and synchronizes the impulses of the comparison circuit with synchronizing impulses derived from the mains voltage or from the beat impulses of the master or controlling computer.

REFERENCES:
patent: 3601674 (1971-08-01), Joslyn et al.
patent: 4337509 (1982-06-01), Omae et al.
patent: 4401935 (1983-08-01), Yerkes
Pulse Battery Charger Employing 1000 Amphere Transistor Switches, R. L. Steigerwald, Oct. 1977, IAS '77 Annual, pp. 1127-1132.

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