Power supply for electronic device, and electronic device system

Details Power supply for electronic device, and electronic device system Power supply for electronic device, and electronic device system

1993-09-09

1995-11-07

Stephan, Steven L.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 28, 320 39, H02J 700

Patent

active

054650399

ABSTRACT:
To make it possible to supply to a battery a charging current having a sufficient capacity which enables a short-time charge while supplying a drive current for usual operation to a battery operable electronic device, without making construction large-sized and complicated.
The present invention is intended to be able to delicately vary a charging current of a battery according to the variation of power consumption of load on an electronic device, by providing constant power feedback control means for performing feedback control of the outputted power so as to cause a constant power or a nearly constant power, based on a current feedback value and a voltage feedback value.

REFERENCES:
patent: 4404472 (1983-09-01), Steigerwald
patent: 5025202 (1991-06-01), Ishii et al.
patent: 5191277 (1993-03-01), Ishikura et al.
patent: 5325040 (1994-06-01), Bogut et al.
patent: 5355073 (1994-10-01), Nguyen
patent: 5371456 (1994-12-01), Brainard

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