Electricity: power supply or regulation systems – In shunt with source or load – Using a three or more terminal semiconductive device
Patent
1994-01-10
1996-05-28
Wong, Peter S.
Electricity: power supply or regulation systems
In shunt with source or load
Using a three or more terminal semiconductive device
323284, G05F 1613
Patent
active
055214886
ABSTRACT:
A voltage regulator (11) having an input (12) for receiving an input current and an output (13) for providing a regulated voltage. The voltage regulator (11) comprising a diode (14), a capacitor (16), a first comparator (17), a second comparator (18), a logic circuit (19), and a switch circuit (21). The capacitor (16) is charged by the input current coupled through the diode (14). The first comparator (17) senses when the voltage on the capacitor (16) exceeds a first reference voltage and provides a signal to the logic circuit (19). The logic circuit (19) enables the switch circuit (21) for shunting the input current from charging the capacitor (19). The second comparator (18) senses when the voltage on the capacitor (16) falls below a second reference voltage and provides a signal to the logic circuit (19). The logic circuit (19) disables the switch circuit (21) from shunting the input current thereby charging the capacitor (19). Thus, the voltage at output (13) stays between the first and second predetermined voltages.
REFERENCES:
patent: 4536700 (1985-08-01), Bello et al.
patent: 4622511 (1986-11-01), Moore
patent: 5359281 (1994-10-01), Barrow et al.
patent: 5396412 (1995-03-01), Barlage
patent: 5422562 (1995-06-01), Mammano et al.
Petty Thomas D.
Stockstad Troy L.
Vyne Robert L.
Han Y. Jessica
Hoshizaki Gary W.
Motorola Inc.
Wong Peter S.
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