74107 ba poh na i.c. un??? tnx poh ng madami....
..Pulsing CLK will toggle Q and Q`.
meron bang commercially avaliable ng T(toggle) flip-flop? o wala talagang T-flip-flop na IC? magmo-modify ka na lang ng existing flip-flop(e.g JK-ff)..
.. posted a wrong schematic without the freewheel diodes.
kung gagamit ba ako ng CMOS (discrete N-MOS & P-MOS) instead of BJT totem pole,no need na ba for freewheel diodes? ung body diode ang bahala?ito kasing CMOS (pairs) ang readily available na sakin..
Be sure also to use LOGIC FETS (IRFZ series). These are triggered at 5V instead of normally 10V gate-source voltage.
plan kong gamitin ito: IRLML2803 & IRLML5103, 1V (min) threshold,to drive the mini motors (came from phone vibrator)..currently, gumagawa kasi ako ng mini mobot, powered by 3V batt..and instead of flip-flop, i'm using the outputs of the picmicro (powered by another 3V batt)..soon, hopefully, mapost ko sya dun sa Post your mobot specifications and pictures here..
Sorry, I missed this post.Any JK flipflop will do. Just tie the J and K inputs to high. Pulsing CLK will toggle Q and Q`.
nilagyan q po xa ng timer i.c. post q po pag ntapos q na poh, paki check naman po,,, tnx po.... 7472 po ung nkita q,,,,
This circuit will not work. There are errors on it.1. LM555 cannot drive the motor's power. What is the purpose of the LM555?2. Q1 and Q3 needs series resistors. 1K should be enough.If you follow my previous posted schematic and using NPN and PNP as current amp. The resistors are not needed.3. Emitter of Q1 or collector of Q2 should be connected to one of the motor's terminal. Likwise, emitter of Q4 and collector of Q3 to the other terminal.
4. Q2 & Q4 should be PNP BJTs