Connect/disconnect circuit for a reserve battery and method of operation thereof
First Claim
1. For use with a reserve battery couplable to a source of electrical power, a battery connect/disconnect circuit, comprising:
- a switching subcircuit comprising a series-coupled controllable switch and diode in electrical series with said reserve battery, said diode reverse-biased with respect to said source of electrical power;
a contactor coupled in electrical parallel with said switching subcircuit; and
a control circuit, coupled to said switching subcircuit and said contactor, that selectively closes said contactor to couple said reserve battery to said source of electrical power to charge said reserve battery.
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Accused Products
Abstract
For use with a reserve battery couplable to a source of electrical power, a battery connect/disconnect circuit, including: (1) a switching subcircuit comprising a series-coupled controllable switch and diode and connected in electrical series with the reserve battery, the diode reverse-biased with respect the source of electrical power, (2) a contactor coupled in electrical parallel with the switching subcircuit and (3) a control circuit, coupled to the switching subcircuit and the contactor, that selectively closes the contactor to couple the reserve battery to the source of electrical power to charge the reserve battery.
61 Citations
20 Claims
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1. For use with a reserve battery couplable to a source of electrical power, a battery connect/disconnect circuit, comprising:
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a switching subcircuit comprising a series-coupled controllable switch and diode in electrical series with said reserve battery, said diode reverse-biased with respect to said source of electrical power; a contactor coupled in electrical parallel with said switching subcircuit; and a control circuit, coupled to said switching subcircuit and said contactor, that selectively closes said contactor to couple said reserve battery to said source of electrical power to charge said reserve battery. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. For use with a reserve battery couplable to a source of electrical power, a method for connecting and disconnecting said reserve battery to said source of electrical power, comprising the steps of:
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connecting a switching subcircuit comprising a series-coupled controllable switch and diode in electrical series with said reserve battery, said diode being reverse-biased with respect to said source of electrical power; coupling a contactor in electrical parallel to said switching subcircuit; and selectively closing said contactor with a control circuit, coupled to said switching subcircuit and said contactor, to couple said reserve battery to said source of electrical power to charge said reserve battery. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A battery back-up power supply, comprising:
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a source of electrical power; an AC/DC rectifier coupled to said source of electrical power; a reserve battery couplable to a said AC/DC rectifier, said AC/DC rectifier capable of charging said reserve battery; and a battery connect/disconnect circuit, comprising; a switching subcircuit comprising a series-coupled controllable switch and diode and connected in electrical series with said reserve battery, said diode reverse-biased with respect to said source of electrical power; a contactor coupled in electrical parallel with said switching subcircuit; and a control circuit, coupled to said switching subcircuit and said contactor, that selectively closes said contactor to couple said reserve battery to said AC/DC rectifier to charge said reserve battery. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification