I just wanted to see if anyone had any recommendations for improvements to this simple circuit designed to blow a fuse when a reversed voltage is supplied to the circuit's power input terminals.
A reverse biased SCR is triggered when the wrong voltage is applied. This increases current draw to blow the fuse.
When the SCR is triggered, a negative voltage is seen by the protected circuit equal to the drop across the SCR.
I'm attaching a schematic of the protection circuit and the protected circuit. The protected circuit is a phase shift audio generator with adjustable amplitude output.
Regards,
Alan
A reverse biased SCR is triggered when the wrong voltage is applied. This increases current draw to blow the fuse.
When the SCR is triggered, a negative voltage is seen by the protected circuit equal to the drop across the SCR.
I'm attaching a schematic of the protection circuit and the protected circuit. The protected circuit is a phase shift audio generator with adjustable amplitude output.
Regards,
Alan
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