PWM Servo Amplifier for Motion Control Systems

A PWM amplifier is a power control device that takes low-power digital PWM signals from a controller and amplifies them to drive high-power servo motors. Our PWM servo amplifiers provide up to 20 amperes of output current at 120 volts maximum, converting digital control signals into the necessary power levels to operate DC brush and brushless motors in industrial motion control applications.

Yes, PWM servo amplifiers are essential for controlling servo motors in motion control systems. The amplifier accepts digital PWM and direction inputs from your controller board and converts them into the high-power signals needed to drive the motor. For brushless motors, commutation signals are also required. This setup is standard in CNC machines, industrial automation, and LinuxCNC systems.

Both the DC brush and brushless servo amplifiers provide up to 20 amperes of output current at a maximum voltage of 120 volts, delivering high power output suitable for demanding industrial automation and CNC applications.

The amplifiers include built-in fault detection circuits with emergency stop (E-stop) capability for immediate shutdown in fault conditions. Additionally, peak current limits are resistor-selectable, allowing you to set appropriate current thresholds to protect your motors from overcurrent damage.

Both amplifiers provide the same 120V, 20A power output and include fault protection features. The key difference is that brushless motor amplifiers require commutation signals in addition to PWM and direction inputs to properly sequence the motor windings, while DC brush motor amplifiers only need PWM and direction signals for operation.

Yes, all PWM servo amplifiers are fully compatible with LinuxCNC control software systems, ensuring seamless integration with open-source CNC control platforms for custom machine builds and retrofits.

We recommend using our pre-drilled heat sink designed specifically for proper thermal management and mounting of servo amplifiers. The heat sink accommodates up to 4 servo amplifiers and provides the necessary heat dissipation to maintain reliable operation during high-power motion control applications.