Battery charging protection circuit composed of the PTC component and the over-voltage protection component

Published:2011/6/28 19:08:00 Author:TaoXi | Keyword: Battery charging, protection circuit, PTC component, over-voltage protection component | From:SeekIC

The PTC component and the over-voltage protection component harmonize to complete the following jobs: 1.Supply the current protection for the FET which might be damaged and the battery's excessive current. 2. The PTC limits the over-current which is produced by the forward direction conduction of the Zener diode. 3. Limit the conduction current when the over-voltage component is protecting the voltage overload.



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