How to deal with the problem that digital power amplifier interferes with FM radio
Time:2022-07-19
Views:1967
Q: in the process of using class D power amplifier, it is always difficult to deal with its interference to FM radio, which causes that products using class D power amplifier cannot increase FM radio, and the sales volume is greatly reduced. How to deal with it?
A: we can try to improve electromagnetic interference from the following three aspects:
1. Optimize pcblayout;
2. Optimize the system layout, such as speaker wire length, shielding measures, system grounding, etc;
3. Class D power amplifier with spread spectrum function or class F power amplifier with ab/d switching function can be applied.
1. Optimize pcblayout;
2. Optimize the system layout, such as speaker wire length, shielding measures, system grounding, etc;
3. Class D power amplifier with spread spectrum function or class F power amplifier with ab/d switching function can be applied.
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