| 摘要 |
A temperature control circuit for a battery charger includes a counter and a digital to analog converter for adjusting a current output of the charger based on a value stored in the counter. A first comparator increments or decrements the counter based on the difference between the temperature of the charger and a desired temperature. A reset circuit zeros the counter when the temperature of the charger has exceeded an upper threshold and subsequently maintains the counter at zero until the temperature of the charger has fallen below a lower threshold.
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