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Class D Switching Power Amplifiers and Power D/A conversion

Burned T-amp fixable?
Burned T-amp fixable?
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Old 8th November 2007, 07:24 PM   #1
jaste is offline jaste  Sweden
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Join Date: Dec 2005
Location: Stockholm
Default Burned T-amp fixable?

Hi! I just twisted the polarities from my batteri to power my t-amp, I was stressed! I saw a resistor burn but didn't notice anything else burn and die on the pcb. Do anyone know if this is all that happends if the polarity from the powersupply are twisted for about 2 seconds, and is it fixable by just replacing the resistor?
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Old 8th November 2007, 09:38 PM   #2
Out_of_phase is offline Out_of_phase  Sweden
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Join Date: Nov 2007
I guess it would be fairly easy to check if only the resistor is damaged by replacing it.

Does the amp have any diode protecting the power input to the Tripath chip? If it does have a protection diode the chip should not be damaged. However, I suspect the tripath chip can be easily damaged by wrong polarity.

Replace the resistor and you will find out.

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