Electricity: power supply or regulation systems – Remote sensing
Patent
1976-03-12
1977-06-21
Goldberg, Gerald
Electricity: power supply or regulation systems
Remote sensing
307252B, 307252T, 323 22SC, 323 24, G05F 144
Patent
active
040314588
ABSTRACT:
An a.c. voltage regulator includes a three terminal thyristor connected across an a.c. power source in series with a load. The thyristor is associated with a time constant circuit comprising a variable resistor and a capacitor and which is connected therewith through a trigger pulse generating element, thus providing a phase control over the conduction of the thyristor. A voltage divider is connected across the main terminals of the thyristor, namely, those terminals excluding the gate terminal, and is connected with gate terminal through a capacitor and is also connected with the time constant circuit through the trigger pulse producing element. A constant voltage diode is connected across the time constant circuit.
REFERENCES:
patent: 3392626 (1968-07-01), Miller et al.
patent: 3452264 (1969-06-01), Turtle
patent: 3493848 (1970-02-01), Galloway
patent: 3855665 (1974-12-01), Schwartz
Electronic Applications, vol. 28, No. 3, Dec. 10, 1968, "Diac Triggering of Thyristors & Triacs," by J. Rozenboom, pp. 85-94.
Goldberg Gerald
Olympus Optical Co,. Ltd.
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