Current regulator for a battery re-charging circuit
First Claim
1. In an instrument including a control circuit, a battery pack for supplying power to the control circuit, and a generator for generating electrical current to re-charge the battery pack, a means for regulating the amount of electrical current supplied to the battery pack for re-charging comprising:
- means for generating a signal representing the desired amount of the re-charging current, said desired signal generating means including a plurality of individual current signal sources and means for summing all of said individual current signals to provide said desired current signal;
means for generating a signal representing the actual amount of the re-charging current; and
means responsive to said desired and actual current signals for controlling said actual amount of said re-charging current to correspond to said desired amount of said re-charging current.
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Accused Products
Abstract
A circuit for regulating the amount of electrical re-charging current supplied to a battery is disclosed. The circuit includes a first generator for generating a signal representing the desired amount of the re-charging current, a second generator for generating a signal representing the actual amount of the re-charging current, and a comparator responsive to the desired and actual current signals for controlling the actual amount of the re-charging current to correspond to the desired amount. The desired signal generator includes a plurality of individual current signal sources. Each of the individual current signal sources is separately controlled by a microprocessor to selectively generate individual current signals. All of the individual current signals are summed together to provide the desired current signal.
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Citations
14 Claims
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1. In an instrument including a control circuit, a battery pack for supplying power to the control circuit, and a generator for generating electrical current to re-charge the battery pack, a means for regulating the amount of electrical current supplied to the battery pack for re-charging comprising:
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means for generating a signal representing the desired amount of the re-charging current, said desired signal generating means including a plurality of individual current signal sources and means for summing all of said individual current signals to provide said desired current signal; means for generating a signal representing the actual amount of the re-charging current; and means responsive to said desired and actual current signals for controlling said actual amount of said re-charging current to correspond to said desired amount of said re-charging current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification