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Returned to hobbyist electronics, and already stuck

Posted: Thu Oct 31, 2013 2:54 pm
by PhilWainwright
Hi there, this is my first post, so; nice to make your acquaintance, and also I would like to ask for a bit of help.

(The last time I did hobby electronics was about 30 years ago, so need to wake the old brain cells up. Anyhow, I am playing with an idea, and in order to make it work, I am going to need a reasonably high power output (20 amp ish at 12v)

I have a 0-10v source signal.

So I have ordered one of these, 600V 30Amp High Power Switching Silicon Transistor MUR3060PT. So could someone please suggest a basic circuit whereby I could feed my source signal in, and have a higher current rated output at 12v?

I would just like to initially understand the function of the component. Then I can draw a circuit with overload protection etc in place once I know where the pins go :lol:

Thank you all

Re: Returned to hobbyist electronics, and already stuck

Posted: Sat Nov 09, 2013 4:26 pm
by Pauldf
What is it for? Are you needing a ratio of output current to input current or will an ON/OFF do? Do you need isolation between the 0-10v signal and the 12v supply? I'm wondering if an opto-relay will be the correct part for the job.

Re: Returned to hobbyist electronics, and already stuck

Posted: Tue Nov 12, 2013 8:15 am
by PhilWainwright
I do not need any proportional output. Simply on/off. I have a 30 amp power supply, so maybe a high current opto relay could work... I will be using frequencies upto 200 kHz.... if that helps? :D

Re: Returned to hobbyist electronics, and already stuck

Posted: Wed Nov 27, 2013 5:24 am
by maithly
i have many drills i can use. both battery and mains (uk) powered. what is the best to generate dc power? somewhere around 12v for a few low watt lights and maybe battery charging.




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