Power Supply Caps: Why Do They Have High Voltage?

AI Thread Summary
Power supplies, particularly in computers, utilize high voltage capacitors due to the operation of switching power supplies that convert household voltage into high frequency voltage. This conversion process can induce high voltage in the high frequency transformer, necessitating the use of capacitors that can withstand these elevated voltages. The design ensures stability and efficiency in voltage regulation. High voltage capacitors are essential for maintaining performance and safety in power supply systems. Understanding this is crucial for anyone working with or designing computer power supplies.
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why do power supplies like computer power supplies have high voltage caps?
 
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Today's computers use switching power supplies which take a house hold voltage and convert it to high frequency voltage which is then down converted to a lower voltage. But during this process, high voltage may be induced in the high frequency transformer, hence you need high voltage caps.
 

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