Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1996-01-24
1998-01-06
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 39, 320 32, H02J 700
Patent
active
057059136
ABSTRACT:
In an overdischarge detection device which is connected between positive and negative load current lines for connecting a chargeable electric cell with a load and which comprises an overdischarge detection circuit including a voltage comparing section for detecting that a cell voltage of the electric cell falls below a threshold voltage to prohibit discharging operation, an adjusting circuit connected to the overdischarge detection circuit detects a particular voltage of a specified part that corresponds to a load current varying in response to relative weight of the load to adjust the threshold voltage on the basis of the particular voltage. Preferably, the adjusting circuit may be constructed so as to clamp the threshold voltage when the particular voltage is higher than a predetermined voltage.
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Higashijima Yasuhisa
Takeuchi Masaru
Tsuchiya Tomonori
Mitsumi Electric Co. Ltd.
Shin K.
Wong Peter S.
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