Power supply device

Details Power supply device Power supply device

2005-07-19

2005-07-19

Riley, Shawn (Department: 2838)

Electrical transmission or interconnection systems

Plural load circuit systems

Control of current or power

Reexamination Certificate

active

06919649

ABSTRACT:
A power supply device comprises a power generating circuit which provides a supply current as a function of a control signal, a regulator to which a reference signal and a regulation signal corresponding to the supply current, are input, in order to provide the control signal, and a reference device providing the reference signal, with a normal state being provided in which the supply current is provided for the electrical loads which are operated at the rated voltage and the input signal difference of the regulator is zero. A regulation characteristic starts from the normal state, whereby a sudden reduction in the operating voltage from the rated voltage to a rated minimum voltage which is necessary for operation of the loads leads to a rise in the supply current by at least 20% of the maximum supply current which can be provided by means of the power generating circuit.

REFERENCES:
patent: 3697768 (1972-10-01), Johnston

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