Driving Motor With Two Transistor

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Transistorman

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hi all

i have just designing my new project

Which can be reduce a the quantity of Transistor in driving motor

is it ok to use this circuit in driving motor with PIC

because im only using small motor ?

**broken link removed**
 
Last edited:
Unless the motor operates on a <20 mA of current (unlikely) then you will need the transistors to boost the current.

And Transistorman, you need a little better understanding of transistors. In your connection the base-emitter junctions are shorting the outputs to ground, since there are no base resistors (and what is the purpose of those transistors anyway?).
 
thanks

for your correction

i will put some diode to prevent PIC from shorting
 
OK, let's try something. Pin 6 of the PIC is High and Pin 7 is low. From there tell us in theory exactly what is happening? The transistors aren't doing anything that I can see.

Ron
 
The base-emitter diode of the transistor that is turned on is shorting the output of the PIC to only +0.7V.
Therefore the PIC will burn out and the motor does not get enough voltage to run.
 
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