vltg controller design question

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sp3

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hi all,

I want to design a circuitry to control the voltage.Basically it requires a switch kind of circuit to do so. Following are the specifications :

if input vltg is less than or equal to 40v then output vltg = input vltg
if input vltg is greaterthan 40v then output vltg = 0V


To satisfy the above conditions I need a switch kind of thing. Please suggest some designs for switch



Thanks,
sp3
 

Hi,
Use a comparator driven relay, which is switched off when voltage is above 40V. Hope the relay off time delay is OK for your application?

Regards,
Laktronics
 

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