Hello to all
I have mosfet D class car amp 2000rms 1ohm stable
When I thurn the amplifier on I hear bumb click noise, what can be the problem?
I disconnected rca cables from the amp and the same Bump click in the speakers noise when thurning on ,the strange thing is when I thurn it on after couple seconds protection circuit thurns the speaker on but the same Click noise is pressent only on powering after that the amplifier works fine
It looks like the protection works but I dont know why there is a CLICK noise when powering the amp and when thurning off the same click noise is present
What can be the problem?
Regards
I have mosfet D class car amp 2000rms 1ohm stable
When I thurn the amplifier on I hear bumb click noise, what can be the problem?
I disconnected rca cables from the amp and the same Bump click in the speakers noise when thurning on ,the strange thing is when I thurn it on after couple seconds protection circuit thurns the speaker on but the same Click noise is pressent only on powering after that the amplifier works fine
It looks like the protection works but I dont know why there is a CLICK noise when powering the amp and when thurning off the same click noise is present
What can be the problem?
Regards
Last edited:
I had terrible troubles with a irs2092 based class d amp.
It was fine on power up but on power down I would get thumps, clicks and siren type noises.
It turned out to be I had too much smoothing and this was upsetting the 2092 reset system. IR suggested a solution that used an IC to hold the 2092 in reset if VCC was out of spec. I used a simple PIC with A2D and if the VCC went below 15 volts I reset the 2092 through an opto-coupler and resistor.
It was fine on power up but on power down I would get thumps, clicks and siren type noises.
It turned out to be I had too much smoothing and this was upsetting the 2092 reset system. IR suggested a solution that used an IC to hold the 2092 in reset if VCC was out of spec. I used a simple PIC with A2D and if the VCC went below 15 volts I reset the 2092 through an opto-coupler and resistor.
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