Overvoltage protection design

[mitrynicolae]

Hi,

I need your assistance in designing a robust overvoltage protection. The circuit must respect the following conditions:
1. low current consumption < 100uA when the over voltage protection is triggered
2. very low or no current consumption (if possible) if the over voltage protection is not triggered
3. the protection should be able to shelf recover
4. the output waveform should not be distorted in any way, except the case when the protection is on. This is the only case in which the output can be trimmed to the ovp value.
5. if possible the voltage level of the ovp should be adjustable.
6. no specialized IC's are allowed. Only basic components like transistors, diodes (of any kind), resistors, capacitors and so on. If possible also avoid op amps.
7. if any supply voltage will be required to power the ovp then this voltage will be 5 volts exactly. No 3.3v supplies or above 5 volt supplies are allowed.

Thank you all for your time and Merry Christmas!!!

[bson]

Looks like you're looking for a 4 quadrant supply?