Driving 4 motors

[Kingston]

Help po mga Sir!!! Problemado n po kami, May single supple ako connected sa 4 motors then each motor my NPN mosfet na IRF1503 then itong source ng MOSFET ay directly connected sa ground, ung gates ay pinagconnect ko for test if same silang magrrun, pero ang nangyari isa lang ang nagrun at ang lkas pa, pagminsan nmn 2 motor ang nugrrun... Mga Sir, motolite po gamit kong supply na 12V 2200mAh, ask ko lang po ano po ba mgandang gamiting device (IC, Transistor etc..) para marun ko individual ang mga motor na ito... require po ng each motor ay 3A, ang volts minimum 4V... Mga Sir HELP PO!!!!

[rdpzycho]

^ check mo 'yung gate voltages nung mga MOSfET, baka 'di pare-parehas nakukuha.

[gie62]

may npn ba na mosfet?? p channel at n channel lang ang alam ko....

[ege]

IF each motor will get 3 amps then your supply of 12 V at 2.2 Ah is not enough....
Kung 3 amps bawat isa, you need 12 amps na supply....

[motion55]

The battery is rated 2.2Ah. This means it can supply 2.2A at 12V for 1 hr. or 12A at 12V for only 11 minutes.

Baka naka series ang mga motors. In this case, the consumption is 3A. However, baka hindi pantay ang voltage drop sa bawat motor. And so they will run at different speeds. If you connect them in parallel, then baka masunog ang motor. You have to find a way to supply the right voltage to the motors connected in parallel. You have to convert 12V to the required voltage most efficiently.

[Kingston]

Mga Sir, meron po ba kaung msusuggest na driver para marun ang 4 motors individually? Quadrotor po kc ung project namin... Thank po!

[bravokilo]

Kingston, what you need is an individual ESC for each motor. You can run them same time at different speeds. Gumagawa ako ng speed conntrollers. Yung apat na Mosfets feediong 4 motors, bnka sa gate ang problema kun common sila. dapat may isolation resistor sa bawat isa.

You can all me at :825 38 67 or text sa 0922 281 0680 if you need further help.

Kuya Bong