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Need help with MOSFET high-side switch

 
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carterturner



Joined: 19 Aug 2017
Posts: 113

PostPosted: Thu Oct 05, 2017 8:43 am    Post subject: Need help with MOSFET high-side switch Reply with quote

Hello,

I am building a project where I need to switch an LED on and off at a high flash rate, and have built and tested the attached circuit. To simplify the design, I went looking for a Logic-level MOSFETto eliminate the NPN transistor and current limiting resistor. So far, so good.

I ended up buying some RFP30N06LE's even though they are N-Channel.

So, can someone tell me if it is possible to use an N-channel MOSFETon the high side, and if so, lead me in the right direction?

Thank You!!!

I didn't find the right solution from the Internet.
References
https://forum.allaboutcircuits.com/threads/need-help-with-mosfet-high-side-switch.140472/
Demonstration video
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