Battery charger with current stabilizer
First Claim
1. A battery charging device for charging a rechargeable battery load, the battery charging device for connection to an external dc power source, the battery charging device comprising;
- current stabilizer means, serially interconnecting the power source and the battery load, the battery load having a load temperature, said current stabilizer means, said plurality of posistor means having a posistor temperature;
means for disconnecting a first one of said posistor means from the power source and subsequently connecting a second one of said posistors means to the power source to prevent the posistor temperature of said plurality of posistor means from reaching a critical temperature; and
thermal circuit breaker means connected to the battery load for preventing electrical connection between the power source and the battery load when the load temperature of the battery load has risen to a predetermined level which indicates that the battery load has been fully recharged.
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Abstract
A battery charging device is used in charging a rechargeable battery load and is to be connected to an external dc power source. The battery charging device has a current stabilizer, which serially interconnects the power source and the battery load and which includes at least one posistor device, and a thermal circuit breaker, which is connected to the battery load and which breaks electrical connection between the battery load and the power source when the temperature of the battery load has risen to a predetermined level which indicates that the battery load has been fully recharged.
17 Citations
7 Claims
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1. A battery charging device for charging a rechargeable battery load, the battery charging device for connection to an external dc power source, the battery charging device comprising;
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current stabilizer means, serially interconnecting the power source and the battery load, the battery load having a load temperature, said current stabilizer means, said plurality of posistor means having a posistor temperature; means for disconnecting a first one of said posistor means from the power source and subsequently connecting a second one of said posistors means to the power source to prevent the posistor temperature of said plurality of posistor means from reaching a critical temperature; and thermal circuit breaker means connected to the battery load for preventing electrical connection between the power source and the battery load when the load temperature of the battery load has risen to a predetermined level which indicates that the battery load has been fully recharged. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification