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Power Supply with Capacitor

 
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Power Supply with Capacitor
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stylzmovement
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I opened another manufacturer`s amp, there was a problem the the power supply, i was blown out, i saw the installed a capacitor across the ground and the neutral, what the reason for this?


Wed Nov 11, 2009 6:53 pm View user's profile Send private message
pcs
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That's just a cheap way to keep RF out of the power supply, the real reason is that the power supply was possibly not strong enough (saving on costs).

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Wed Nov 11, 2009 7:03 pm View user's profile Send private message Visit poster's website
stylzmovement
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so therefore if the power transistor has a max output of 150 watts and i use a 150 watts power supply , it is a good idea to install a cap across the terminals.

but if i was to use a larger power supply like 300 watts to power the same transistor , what you are saying is that no capacitor are needed. because the power supply will have enough power and shield to keep the rf out.

that what i understand by you statement, is that correct?
Thu Nov 12, 2009 3:09 am View user's profile Send private message
pcs
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No, you always need to use around 300W power supply, capacitor has nothing to do with power rating.

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Marko - PCS Electronics
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Thu Nov 12, 2009 9:55 am View user's profile Send private message Visit poster's website
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