CONTROLLING REDUNDANT POWER SUPPLIES IN AN INFORMATION HANDLING SYSTEM
First Claim
1. A power supply system comprising:
- a first power supply including a first converter for providing a first output voltage and a first micro-controller coupled to a first switch, the first switch further coupled to a common share bus;
a second power supply including a second converter for providing a second output voltage and a second micro-controller coupled to a second switch, the second switch further coupled to the common share bus; and
wherein the first micro-controller is configured to receive a first control signal designating the first power supply to be either a master power supply or a slave power supply and the second micro-controller is configured to receive a second control signal designating the second power supply to be either the master power supply or the slave power supply.
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Abstract
A power supply system comprises a first power supply including a first converter for providing a first output voltage and a first micro-controller coupled to a first switch. The first switch is coupled to a common share bus. A second power supply includes a second converter for providing a second output voltage and a second micro-controller coupled to a second switch. The second switch is also coupled to the common share bus. The first micro-controller is configured to receive a first control signal designating the first power supply to be either a master power supply or a slave power supply and the second micro-controller is configured to receive a second control signal designating the second power supply to be either the master power supply or the slave power supply.
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Citations
20 Claims
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1. A power supply system comprising:
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a first power supply including a first converter for providing a first output voltage and a first micro-controller coupled to a first switch, the first switch further coupled to a common share bus; a second power supply including a second converter for providing a second output voltage and a second micro-controller coupled to a second switch, the second switch further coupled to the common share bus; and wherein the first micro-controller is configured to receive a first control signal designating the first power supply to be either a master power supply or a slave power supply and the second micro-controller is configured to receive a second control signal designating the second power supply to be either the master power supply or the slave power supply. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An information handling system (IHS) comprising:
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at least one processing node, the processing node having at least one central processing unit (CPU); a first power supply including a first converter for providing power to the processing node and a first micro-controller coupled to a first switch, the first switch further coupled to a common share bus; a second power supply including a second converter for providing power to the processing node and a second micro-controller coupled to a second switch, the second switch further coupled to the common share bus; and wherein the first micro-controller is configured to receive a first control signal designating the first power supply to be either a master power supply or a slave power supply and the second micro-controller is configured to receive a second control signal designating the second power supply to be either the master power supply or the slave power supply. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method of operating a power supply system, the method comprising:
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receiving a first control signal at a first micro-controller of a first power supply; determining if the first control signal identifies the first power supply as a master power supply; in response to determining that the first control signal has identified the first power supply as the master power supply, turning on a first switch coupled between the first micro-controller and a common share bus such that the first power supply is configured as a master power supply that sets the voltage on the common share bus. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification