Recent content by ksip2021

If multiple class d amplifier modules are being used, some salient points should be addressed, such as if spread spectrum clocking were being used and non-sync between modules, complex beat frequencies emission might occur both on far field radiation and conducted on the mains supply. Adding...

Those cracks are very common for vintage Rifa capacitor. This may lead to fatal case if applied as class x/y safety capacitor under poor earthing conditions.

This amplifier looks great but It's better to have some measurements on the conducted and radiated EMI emissions. Perhaps a LISN is required for measuring AC noise under such SMPS based unit.