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Chip Amps Amplifiers based on integrated circuits

Oscillating with a resistive dummy load
Oscillating with a resistive dummy load
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Old 16th February 2007, 12:30 AM   #21
billbo is offline billbo  Australia
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Join Date: Nov 2006
Location: Sydney
Default oscillation issue

Try using an 8ohm speakers. I had the same problem only if I ran the amp into an 4 ohm load. It will work fine into 8 so I left it with 8 ohm speakers. It could be a zobel problem. Or your power supply is too high for 4 ohm loads.
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Old 16th February 2007, 10:35 AM   #22
markiemrboo is offline markiemrboo  United Kingdom
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Join Date: Mar 2006
Location: Great Yarmouth, UK
Default Re: oscillation issue

Quote:
Originally posted by billbo
Try using an 8ohm speakers. I had the same problem only if I ran the amp into an 4 ohm load. It will work fine into 8 so I left it with 8 ohm speakers. It could be a zobel problem. Or your power supply is too high for 4 ohm loads.
There's no chance I would risk doing what you're doing... even if I did just happen to have speakers which I knew didn't go below 8 ohms, but I got it sorted anyway (see a few posts back) :P
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