Charging and discharging control circuit and charging type...

Details Charging and discharging control circuit and charging type... Charging and discharging control circuit and charging type...

2006-03-14

2006-03-14

Tibbits, Pia (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell charging

With thermal condition detection

Reexamination Certificate

active

07012407

ABSTRACT:
The invention provides: a charging and discharging control circuit which includes a charging and discharging control terminal having a test function as well and which is capable of conducting switch over among a normal application state, a charging and discharging prohibition state, and a test state; and a charging type power supply unit. Any one of a level “L”, “H”, or “M” of a voltage inputted to a charging and discharging control terminal is selected using the charging and discharging control terminal and a test fuse to allow switch over to the normal application state, the charging and discharging prohibition state, or the test state. In the test state, two modes for shortening a test delay time are realized depending on whether or not the test fuse is cut.

REFERENCES:
patent: 5493197 (1996-02-01), Eguchi et al.
patent: 5739671 (1998-04-01), Hamada
patent: 06141479 (1994-05-01), None

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