Questions about choosing component values

Thread Starter

gte

Joined Sep 18, 2009
353
In this circuit, what do I need to take into consideration, when choosing the components values?

What I'd like to ultimately do is take a pwm output, convert it to analog and trigger a relay with it.



 

mik3

Joined Feb 4, 2008
4,843
At what conditions you want to trigger the relay?

I think you can do it without the need to use PWM but just turn on the uC pin.
 

Thread Starter

gte

Joined Sep 18, 2009
353
The PWM is controlled by an ecu, and it is the arbitrary source as to what I need to trigger from, basically a constant if you will.



At what conditions you want to trigger the relay?

I think you can do it without the need to use PWM but just turn on the uC pin.
 
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