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Constant current discharge of high capacity batteries based on PTC ceramic resistance

SONG Dong-sheng,YAN Li-wei,LIU Ji(Tianjin campus of Naval Engineering University,Tanggu Tianjin 300450,China)  
The surface temperature of PTC ceramic resistance can be controlled by utilizing nonlinear impedance performance which is presented by its positive temperature coefficient to indirectly adjust the impedance of PTC ceramic resistance,and finally to achieve the goal that the constant-current discharge of high capacity batteries can be achieved.
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