Design method for preventing upper MOS of VR from being broken down to burn up CPU
A design method, P12V technology, applied in the protection of under-voltage or no-voltage, data processing power supply, etc., can solve the problems of burning the CPU, burning the CPU, and using it for a long time.
Inactive Publication Date: 2015-04-29
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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AI-Extracted Technical Summary
Problems solved by technology
The invention provides a design method for preventing an upper MOS of a VR from being broken down to burn up a CPU, and relates to the field of server DC power supply. PMOSs are added to two ends of an input capacitor; whether the upper MOS of the VR is broken down or not is judged by sensing voltage at two ends of the VR input capacitor; once the upper MOS is broken down, P12V is immediately pulled down, and short circuit protection of input voltage is triggered, so that power failure of the overall system is achieved; and the CPU is prevented from being burnt out.
Power supply for data processingArrangements responsive to undervoltage
Short circuit protectionBurning out +6
- Experimental program(1)
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