i made this circuit for an l293 h-bridge which originally regulates current with a programmable microprocessor.... and because i dont have this board... the circuit is giving the motors about 50mA of current which is good but sometimes i goes up to 2A!! you can hear the motor freaking out and i pull the plug immediately... im afraid to burn the thing... the motors are rated at 1.2A and its a miracle thgey still work.... is there some sort of current limiting circuit... even if the excess current becomes to heat im alright with that