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A recent customer asked if it were possible to connect a motor to both channels to increase the maximum amount of current. For example, with the Sabertooth Dual 60A (TE-091-260), whether or not it would be possible to get 120A out of it.
The answer is no. Doing so will permanently damage the motor. Motor controllers use a circuit topology called an H-Bridge. Each motor terminal is connected to your battery power and ground through a transistor. The output voltage that controls the speed of the motor is achieved by throttling these transistors in a pattern using a series of PWM signals. Connecting a motor to the center of two H-Bridges will cause an event where a motor is both connected to your battery and ground at the same time. This will cause a surge of current through the H-Bridge which will destroy the circuit.
This is a great clarification. However, If we wanted to attach two 12v linear actuators to a single controller, would that be possible. We would like these two actuators to act as one and move in unison without controlling each seperately.
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