Electricity: power supply or regulation systems – Output level responsive – Using an impedance as the final control device
Patent
1985-07-11
1987-05-26
Wong, Peter S.
Electricity: power supply or regulation systems
Output level responsive
Using an impedance as the final control device
323354, 323370, 363 84, G05F 1656
Patent
active
046689060
ABSTRACT:
A switched resistor regulator controls current flow through a resistor electrically connected to a load by varying the duty cycle of switching the resistor into electrical connection between of a power source and the load to regulate the power to the load. Both current and voltage regulation can be achieved. In a series switched configuration, current flow through a resistor in series with the load is controlled with current flow being maintained by a capacitor is parallel with the load when the resistor is switched off. In a shunt switched configuration current flow through a resistor in parallel with the load is controlled, with a capacitor parallel to the load also being used. In a hybrid configuration a shunt switched resistor is used while the current level to the load is changed by selecting one of several series resistors; a capacitor is also provided parallel to the load. In a switched resistor passbank configuration a series switched resistor is used with a capacitor connected in series with the load and parallel to the switched series resistor.
REFERENCES:
patent: 1892215 (1932-12-01), Mathieu
patent: 3430127 (1969-02-01), Weiss
patent: 3546573 (1970-12-01), Coccia
patent: 3898593 (1975-08-01), Qureshi
patent: 4016485 (1977-04-01), Samorodov et al.
Davis et al., "Low-Voltage AC Hg Arc Lamp Power Supply", IBM Technical Disclosure Bulletin, vol. 18, No. 2, Jul. 1975, pp. 596-597.
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