METHOD AND APPARATUS FOR BATTERY-BACKED POWER SUPPLY AND BATTERY CHARGING
First Claim
1. A method of providing battery-backed power, comprising:
- providing a power converter for generating a direct current (DC) output from an alternating current (AC) input;
monitoring the DC output for acceptable operation of the power converter in-situ by;
sensing a charge current between an enabled DC output and a battery output of a battery;
controlling charging of the battery with a pulse-width modulation operation for selectively coupling the enabled DC output to the battery output; and
coupling the enabled DC output and the battery output in a logical-OR configuration to generate a supply output that provides current from the battery and from the enabled DC output when it is enabled.
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Accused Products
Abstract
Apparatuses, systems, and methods for providing battery-backed power to movable partitions are disclosed. A power converter generates a DC output from an AC input. The DC output may be selectively decoupled from an enabled DC output such that the DC output can be monitored for acceptable operation in-situ. The enabled DC output may be selectively coupled to a battery output terminal. A charge current may be sensed between the enabled DC output and the battery output to control charging of the battery with a pulse-width modulation operation by controlling the selective coupling of the enabled DC output to the battery output. The enabled DC output and the battery output are coupled in a logical-OR configuration to generate a supply output providing current from the enabled DC output and the battery. The supply output may drive a movable partition controller and a motor configured for opening and closing a movable partition.
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Citations
21 Claims
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1. A method of providing battery-backed power, comprising:
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providing a power converter for generating a direct current (DC) output from an alternating current (AC) input; monitoring the DC output for acceptable operation of the power converter in-situ by; sensing a charge current between an enabled DC output and a battery output of a battery; controlling charging of the battery with a pulse-width modulation operation for selectively coupling the enabled DC output to the battery output; and coupling the enabled DC output and the battery output in a logical-OR configuration to generate a supply output that provides current from the battery and from the enabled DC output when it is enabled. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A battery-backed power supply, comprising:
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a power converter with an alternating current (AC) input and a direct current (DC) output; a first diode operably coupled in a forward biased configuration between the DC output and a biased DC output; a supply switch operably coupled between the biased DC output and a supply output; a battery switch operably coupled between the supply output and a battery-charge signal; a battery operably coupled between a ground and a battery output; a current sensor operably coupled in series between the battery-charge signal and the battery output; a second diode operably coupled between the battery output and the supply output; and a controller configured for; supplying current to the battery through a battery switch controlled with a pulse-width modulation operation. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A movable partition system, comprising:
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at least one movable partition; a battery-backed power supply, comprising; a power converter with an alternating current input and a direct current (DC) output; a first diode operably coupled in a forward biased configuration between the DC output and a biased DC output; a supply switch configured for selectively coupling the biased DC output to a supply output; a battery operably coupled between a ground and a battery output; a battery switch configured for selectively coupling the supply output to a battery-charge signal; a current sensor operably coupled in series between the battery-charge signal and the battery output; a second diode operably coupled between the battery output and the supply output; and a controller configured for charging the battery by controlling the battery switch with a pulse-width modulation operation; and a movable partition controller operably coupled to the supply output and including a motor configured for displacing the at least one movable partition. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification