Regarding current capacity of servo adapter

[NAVNEET ACHARYA]

Sir,

It's mentioned that it can drive 26 servo's .

I just want to know it's current handling capacity,Because some

servo takes more current than others.

Another thing is that when I drive 4 Servo motor through

PWMA0-PWMA3 Pins ,in starting Motor get jerked then run

smoothly? Can you tell the reason behind that ?


please give response as early as possible.

Regards,
Navneet Acharya

[RMDumse]

The Servo Adapter for the IsoPod(TM) allows an external battery supply to be applied to the adapter, and distributes this to the servo connector rails.

The maximum current total will be limited by the input connectors, which are the "weakest link" rated at 3 - 4 Amps. Since there are two connectors in parallel, a maximum steady state load of 6 Amps is the practical limit.

Of course, higher surge currents can be tolerated, because this limit is primarily based on heat disipation limit given the size of the conductors and contact areas. Most servos use very little current until under motion. So the actual capacity possible depends very much on the nature of the loading of the servos.