Ways to attach Battery.

Started by MohitJindal, January 16, 2013, 09:55:42 AM

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MohitJindal

Hi; I want to give extra current to the DC motor; without damaging the SMD circuit board. The circuit board is giving 1amp to the motor. I want to replace motor with big 5amp motor.Is there any way to attach extra battery which provide power only to the motor, not back to circuit board  :help: :banghead: :(

lastRites

Yeah there are a number of ways to accomplish that. Just tell us if you need to control the speed(through pwm) and if you need bidirectional control.
It is the pervading law of all things organic and inorganic,
Of all things physical and metaphysical,
Of all things human and all things super-human,
Of all true manifestations of the head,
Of the heart, of the soul,
That the life is recognizable in its expression,
That form ever follows function. This is the law.

MohitJindal

Its a DC servo motor. So both PWM and bidirectional.

lastRites

Servo? Then why would you need a different controller???
It is the pervading law of all things organic and inorganic,
Of all things physical and metaphysical,
Of all things human and all things super-human,
Of all true manifestations of the head,
Of the heart, of the soul,
That the life is recognizable in its expression,
That form ever follows function. This is the law.

MohitJindal

I don't want different controller. I just want to give extra power to dc motor without burning the servo circuit.

lastRites

Can you be a little more specific please? Here are your options:
PWM and UNIdirection : Use power MOSFETS or power transistors (MJE series).
Non-PWM and bidirectional : Relay H-Bridge
You have to combine both the above to get bidirectional pwm control. PWM on the power supply and direction using the relays.
It is the pervading law of all things organic and inorganic,
Of all things physical and metaphysical,
Of all things human and all things super-human,
Of all true manifestations of the head,
Of the heart, of the soul,
That the life is recognizable in its expression,
That form ever follows function. This is the law.

MohitJindal

I want to combine both but how? Do you have any circuit diagram ? Any readymade part you know ?

MohitJindal

I attached the motor circuit. I hope that will help you to understand. All I want is to give more current to the DC motor without burning the circuit. :help: