Today I would like to show You my protection circuit.
This circuit is designed to do few functions:
– delay at startup – few seconds set by RC
– DC protection
– AC interruption detection for cancelling pops after switching off device.
Circuit are fully discrete and it is my own design. Also circuit has built-in LED indicator.
Output OK:
Output Not OK,or during start-up delay:
Dimensions of board: 50mm x 50mm.
MuzgDIY 
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