Three-phase alternating current circuit configuration, for using

Details Three-phase alternating current circuit configuration, for using Three-phase alternating current circuit configuration, for using

1989-12-01

1991-07-16

Stephan, Steven L.

Electric power conversion systems

Phase conversion without intermediate conversion to d.c.

363 95, H02M 500

Patent

active

050329740

ABSTRACT:
A three-phase circuit configuration for the synchronized timing of an electrical apparatus with the three phase power supply where the timing clock pulses are formed from a control voltage. In a four wire configuration, the control voltage is the voltage between a neutral point formed by three unequal resistors and the neutral line. In a three wire configuration, an additional neutral point is formed by coupling together another set of three resistors. The control voltage for the three wire configuration is the voltage between the two neutral points.

REFERENCES:
patent: 3968418 (1976-07-01), Kain et al.
patent: 4081746 (1978-03-01), Snyder et al.
patent: 4791546 (1988-12-01), Carroll
General Electric Company, Transistor Manual, 8/64 pp. 178-179.
Funkschau, vol. 16, 1985, pp. 53-54, Francis Verlag, Muenchen, "Grundschaltungen der Elektronik, Optokoppler, G8, Teil 1".

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