PWM controlled DC motor

409

06:32:26

Control a 12v DC motor's speed and direction using a PWM signal from an NE555 timer IC.

published 9 years ago

SigmaEOD

9 years ago

I see you set up an H Bridge there. You know how it works right?

SigmaEOD

9 years ago

Here is a better working model. http://everycircuit.com/circuit/6365054381850624

SigmaEOD

9 years ago

You want to have diodes in there to keep everything running correctly, or when each mosfet is supposed to run.

SigmaEOD

9 years ago

So what I recommend is having the Hbridge similar to circuit In the link I posted, and having the 555 move the switch

WTFCircuit

9 years ago

The 1k resistors goes to the gates of your mosfets and not to the power supply, this is to turn off the mosfet that otherwise will stay on, creating a short circuit that can destroy your bridge and maybe the 555 timer

pajaka

9 years ago

Check my version of this H bridge ;-)

minaife

9 years ago

Dont,t work properly...

davidlasagna

9 years ago

Yeah sorry guys my bad I did screw up I put the 1k resistors shorting the 12v supply and not to the gates. I've made a couple adjustments and it works properly now.

eatmorepizza

9 years ago

Nice! Where are the motor connections? Thanks

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