Self-contained automatic battery charging systems and methods
First Claim
1. A self-contained automatic battery charging system comprising:
- a power printed circuit board (PCB) comprising;
input connections to allow an alternating current (AC) power to flow into the self-contained automatic battery charging system;
a first switchmode converter configured to convert the AC power into a direct current (DC) power and the first switchmode converter configured to provide active power factor correction so as to provide an improved power factor, the first switchmode converter comprising a high frequency isolation transformer to provide an electrical isolation between a primary circuitry and a secondary circuitry of the self-contained automatic battery charging system;
a second switchmode converter connected to a DC output from the first switchmode converter and that is configured to regulate an output voltage and limit an output current of the self-contained automatic battery charging system; and
output connections configured for wiring the DC output to an electrical load.
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Accused Products
Abstract
Disclosed herein is an embodiment of a charger having a power printed circuit board (PCB) that enables an alternating current (AC) power to flow into a self-contained automatic battery charging system. A first switchmode converter converts an AC input power into a direct current (DC) power thereby to provide an active power factor correction to obtain an improved power factor. The first switchmode converter comprising a high frequency isolation transformer which provides an electrical isolation between a primary circuitry and a secondary circuitry of the self-contained automatic battery charging system. A second switchmode converter connected to a DC output from the first switchmode converter regulates system output voltage and limits system output current to an electrical load. The DC output is connected to a battery and/or another electrical storage device to be charged and/or to a parallel-connected DC load to be powered. An optional accessory PCB is electrically connected to the power PCB, and they are housed in a same chassis or enclosure. The optional accessory PCB provides optional features including an LCD, alarm output relay(s), and/or a controller area network bus (CANbus) interface. Other embodiments are also disclosed.
22 Citations
22 Claims
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1. A self-contained automatic battery charging system comprising:
a power printed circuit board (PCB) comprising; input connections to allow an alternating current (AC) power to flow into the self-contained automatic battery charging system; a first switchmode converter configured to convert the AC power into a direct current (DC) power and the first switchmode converter configured to provide active power factor correction so as to provide an improved power factor, the first switchmode converter comprising a high frequency isolation transformer to provide an electrical isolation between a primary circuitry and a secondary circuitry of the self-contained automatic battery charging system; a second switchmode converter connected to a DC output from the first switchmode converter and that is configured to regulate an output voltage and limit an output current of the self-contained automatic battery charging system; and output connections configured for wiring the DC output to an electrical load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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inputting an alternating current (AC) power to a first switchmode converter, the first switchmode converter converting AC input power into a direct current (DC) power and providing the first switchmode converter configured to provide active power factor correction so as to provide an improved power factor, the first switchmode converter comprising a high frequency isolation transformer to provide an electrical isolation between a primary circuitry and a secondary circuitry of a self-contained automatic battery charging system; and outputting a DC output from the first switchmode converter to an input of a second switchmode converter, the second switchmode converter regulating an output voltage and limiting an output current to an electrical load. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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Specification