发明名称 |
IMPROVEMENTS IN OR RELATING TO BATTERY CHARGING |
摘要 |
A battery charger comprises a power supply for supplying current pulses to a battery to be charged. A microprocessor receives from an analog-to-digital converter codes representing the voltage between the battery terminals with the battery off-load between charging pulses and monitors the ratio of the voltage difference (V3-V5) during a first period following a charging pulse to the voltage difference (V10-V12) over a second period following the charging pulse, with the second period ending after the beginning of the first period. The value of this ratio reaches a peak value and then declines, and the microprocessor determines when the value of the ratio falls below a peak value thereof by a predetermined amount to terminate fast charging of the battery, after which the battery may be removed or may remain on a trickle charge. An accurate, reliable, and consistent determination of completion of charging of sealed nickel-cadmium batteries is thus provided. |
申请公布号 |
DE3466454(D1) |
申请公布日期 |
1987.10.29 |
申请号 |
DE19843466454 |
申请日期 |
1984.02.29 |
申请人 |
ELECTRONIC DESIGNS (I.W.) LIMITED |
发明人 |
TAYLOR, ANDREW JOHN;MCGILLIVRAY, PHILIP JAMES |
分类号 |
H02J7/00;(IPC1-7):H02J7/04 |
主分类号 |
H02J7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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