[SI-LIST] Re: Capacitor discharge

An active bleed switch is pretty easy to implement with a power MOSFET.  
There are any number of ways to insure that the MOSFET only comes on 
following power off.

Steve.

Suvedha Muthuvelu wrote:
> Hi,
>
> We are generating high voltages +/-70V and +/-80V in our board from power 
> supply modules with 12V as input. 100UF Capacitors are added at the output of 
> each power supply modules.. Can any one suggest a way to discharge this 
> capacitor after power off. We don’t want to add bleed resistor directly to 
> the capacitor as this may act as a load on power on condition. The resistor 
> should come into picture after power off. Can anyone please suggest a circuit 
> for discharging capacitor voltage without affecting the normal working 
> condition.
>
> Regards,
> Suvedha
>
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