摘要
A circuit design for accomplishing high efficiency Ni-Cd battery charging for portable electronic appliances is presented. The proposed method uses a stepwise mV monitoring to trace the battery voltage to determine the state of charging. The control strategy of this charger senses the most important negative delta voltage characteristic of the Ni-Cd batteries. It ensures full recharging under various residual conditions, and maintains battery lifetime. A constant current power supply is applied; this extends the charging capability for different battery voltages. The recharging efficiency was tested and shown to reach above 97% to 105% of the rated specification. The recharging failure rate is approximately 0 to 200 sample tests within 6 months. The proposed circuit design has been fabricated into an integrated circuit.
原文 | English |
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頁面 | 2461-2465 |
頁數 | 5 |
出版狀態 | Published - 1991 12月 1 |
事件 | Proceedings of the 1991 International Conference on Industrial Electronics, Control and Instrumentation - IECON '91 - Kobe, Jpn 持續時間: 1991 10月 28 → 1991 11月 1 |
Other
Other | Proceedings of the 1991 International Conference on Industrial Electronics, Control and Instrumentation - IECON '91 |
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城市 | Kobe, Jpn |
期間 | 91-10-28 → 91-11-01 |
All Science Journal Classification (ASJC) codes
- 控制與系統工程
- 電氣與電子工程