Electricity: battery or capacitor charging or discharging – Battery or cell charging – With current sensing to detect proper battery connection
Patent
1999-08-19
2000-10-24
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Battery or cell charging
With current sensing to detect proper battery connection
320137, H02J 716
Patent
active
061372714
ABSTRACT:
An automatic polarity exchange circuit with current detection feedback capabilities includes a forward polarity detector connected in parallel with a reverse polarity detector to respectively drive a positive switch or reverse polarity switch in the automatic polarity exchanger pursuant to the outcome of the polarity detection, as performed on the switches. Meanwhile, the hypersensitivity effect due to a control operation is prevented by a time delay caused by a series-on delay circuit integral with the automatic polarity exchange switch assembly and a current divider switching circuit that is controlled by a load current detection circuit and connected in parallel with the series-on delay circuit, which turns to a conducting state once the working current produced by a correct linkage of polarities on the power supply side with the loading side yields an output, to the effect that:
REFERENCES:
patent: 4663579 (1987-05-01), Yang
patent: 4994727 (1991-02-01), Yang
patent: 5453643 (1995-09-01), Yang
patent: 5831455 (1998-11-01), Chen
Luk Lawrence
Wong Peter S.
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