Electricity: battery or capacitor charging or discharging – Battery or cell discharging – With charging
Patent
1998-06-04
1999-08-10
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Battery or cell discharging
With charging
320112, 320164, H02J 700
Patent
active
059363843
ABSTRACT:
In a charge and discharge protection circuit, those transistors constituting a level shifting circuit that may receive a relatively high voltage as a source level or a drain level have a high withstand voltage construction.
REFERENCES:
patent: 5493197 (1996-02-01), Eguchi et al.
patent: 5581170 (1996-12-01), Mammano et al.
patent: 5631537 (1997-05-01), Armstrong
patent: 5705911 (1998-01-01), Tamai
patent: 5742148 (1998-04-01), Sudo et al.
patent: 5783322 (1998-07-01), Nagai et al.
patent: 5818201 (1998-10-01), Stockstad et al.
Fujiwara Akihiko
Ohsugi Toshio
Ricoh & Company, Ltd.
Shin K.
Wong Peter S.
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