AC-DC adapter and battery charger integration scheme
First Claim
1. A method for converting an alternating current (AC) input to a direct current (DC) output, the DC output providing power to a load, the method comprising:
- receiving the alternative current (AC) input;
receiving a first feedback signal indicative of a target voltage required by the load;
receiving a second feedback signal indicative of the DC output; and
generating the DC output responsive to the first and second feedback signals, wherein the DC output is maintained within a predefined range of the target voltage.
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Accused Products
Abstract
In a method and system for converting an alternating current (AC) input to a direct current (DC) output, an AC-DC adapter includes a rectifier module operable to receive the AC input and generate a first DC output. The AC-DC adapter includes a buck converter module operable to receive the first DC output and generate the DC output responsive to a control signal. A controller module, included in the AC-DC adapter is operable to receive a first feedback signal input indicative of a target voltage required by a load and a second feedback signal input indicative of the DC output to generate the control signal. The controller module adjusts the control signal responsive to the first and second feedback signal inputs so that the DC output is maintained to be within a predefined range of the target voltage.
121 Citations
22 Claims
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1. A method for converting an alternating current (AC) input to a direct current (DC) output, the DC output providing power to a load, the method comprising:
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receiving the alternative current (AC) input;
receiving a first feedback signal indicative of a target voltage required by the load;
receiving a second feedback signal indicative of the DC output; and
generating the DC output responsive to the first and second feedback signals, wherein the DC output is maintained within a predefined range of the target voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An integrated alternating current (AC) to direct current (DC) adapter comprising:
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a rectifier module operable to receive an AC input and generate a first DC output;
a buck converter module operable to receive the first DC output and generate a second DC output responsive to a control signal; and
a controller module operable to receive a first feedback signal input indicative of a target voltage required by a load and a second feedback signal input indicative of the second DC output, the controller adjusting the control signal responsive to the first and second feedback signal inputs, the adjusting of the control signal causing the buck converter module to maintain the second DC output to be within a predefined range of the target voltage. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An information handling system comprising:
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a processor;
a system bus;
a memory coupled to the processor through the system bus; and
a power supply system operable to provide power to the processor, the bus and the memory, the power supply system being connectable to an alternating current (AC) power source, wherein the power supply system includes;
a rectifier module operable to receive the AC input and generate a first direct current (DC) output;
a buck converter module operable to receive the first DC output and generate a second DC output responsive to a control signal; and
a controller module operable to receive a first feedback signal input indicative of a target voltage required by the processor and a second feedback signal input indicative of the second DC output, the controller adjusting the control signal responsive to the first and second feedback signal inputs, the adjusting of the control signal causing the buck converter module to maintain the second DC output to be within a predefined range of the target voltage.
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Specification