Has anyone built a device to "listen" to pulse width modulated power supplies? My hearing is getting bad, & I can't hear the "chirp" on plugin in T.V.'s for example! Rono.
- posted
18 years ago
PWM power supplies!!
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- posted
18 years ago
I use a scope, and DMV to troubleshoot them. With my hearing, I could never hear one of these. I am sure that the dog or cat can!
-- Jerry G. ======
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- posted
18 years ago
never
Many of them operate at 50KHz or more, even with flawless hearing you wouldn't hear them.