12 Servo's together does not seem to work, Power problem

[sayzer]

Even if you use a stronger power supply, you may get the same problem along with some other problems.

Even though all V+ and GNDs will be parallel for all servos, the last ones in the power line will still be getting low voltage.

I suggest you make a connection as below.

In Figure1, S1 does not get the same voltage as S4 or S5.
In Figure2, all servos get the same voltage.

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[BigWumpus]

Good plan !

[macx75]

Thanks
I have been using 1 amp input and thanks Sayer for the design now they get equal power.
I have tried it with 6 servos and they work perfectly will join 6+6 more.
maybe to control all I will need diffrent power supplies.

New Ideas come only by Experiments.
Mac

[emavil]

Even if you use a stronger power supply, you may get the same problem along with some other problems.

Even though all V+ and GNDs will be parallel for all servos, the last ones in the power line will still be getting low voltage.

I suggest you make a connection as below.

In Figure1, S1 does not get the same voltage as S4 or S5.
In Figure2, all servos get the same voltage.
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I am curious about the schematic diagram in figure 2, can u give possible PCB layout for those servos. including power supply, location & connection and a simple microcontroller like PIC16F84A? Do i have to design the pcb following the arrangement of servo connectors found in Figure 2?

I stopped the servo motor programming 'coz i also encountered the same problem. I have only 2 servos, one for steering and the other for acceleration. Both of them mounted perpendicular to each other. As I turn on the circuit, instead of performing the desired action which is move forward, the steering servo tends to turn left, sometimes, right. I still have to do some series of power on, then off, then on, then off until it behaves according to what is expected.

[sayzer]

emavil,

Why don't you try this power supply connection by hand first?

Instead of having it on PCB, try and see if this is indeed the case for you.

Separate the cables of Servos from each other, and apply the voltage as in the schematic above.

Even then if you still get the same issue, then you will know Power Supply was not the case.

Also, are you using battery or what?
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[emavil]

emavil,

Why don't you try this power supply connection by hand first?

Instead of having it on PCB, try and see if this is indeed the case for you.

Separate the cables of Servos from each other, and apply the voltage as in the schematic above.

Even then if you still get the same issue, then you will know Power Supply was not the case.

Also, are you using battery or what?
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Yep, I'm using 4 pcs 1.2vDC 2000mAH rechargeable batteries.