NiMh/NiCd Switchmode Battery Charger Has dV/dt Charge Termination

摘要

All battery chargers can be regarded as constant-current power supplies, but they differ from power supplies in two important respects: battery chargers (by design) block all discharge paths from battery to charger, under any conditions. They also include circuitry that decides when the battery has taken a full charge (signaling when the full-charge current must be reduced), and when the charging process should be terminated.