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PDC3 Series

- Miniature Stepper Motor Controller (Voltage Control)
Miniature Voltage Control Stepper Motor Controller

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  • Description
  • Specifications
  • Mechanical
  • Wiring&Connections
  • Downloads

PDC3 series stepper motor controller is a microprocessor embedded, voltage control, miniature stepper motor controller. PDC3 series controllers are integrally designed to fit onto stepper motors, and simple to control. With these controllers, motor speed can be controlled by an analog voltage. It is simple, stable and low cost.

The microprocessor of the PDC3 series is capable to ramp up the current speed to the desired speed. It is possible to jump to 1900 rpm in 0.3 seconds. This feature makes the sudden increase of the desired speed become possible. With the PDC3 series, the motor speed can be controlled by an analog voltage in three optional ways: the on-board trimmer, an external potentiometer or an external voltage. PDC3 series controllers can run the motor without user control device. At the same time, with the high-speed current compensation function, PDC3 series can compensate the effects caused by counter electromotive force, which is produced in high-speed motor turning.

PDC series controllers can be mounted onto NEMA 17/23 series stepper motors seamlessly through adapting flanges. The enclosure is made of die-cast aluminum to provide a rugged durable protection and improves the heat dissipation.


Model PDC3L02 PDC3C04

Output current



Supply voltage



Isolation resistance


Dielectric strength

0.5KV in one minute

Microstepping resolution

1, 1/2, 1/4, 1/8, 1/16

Speed range

8 Hz ~ 102K Hz, 0.15 ~ 1912.5 rpm (1.8° Motor)

Terminal Description

Miniature Voltage Control Stepper Motor Controller terminal description

Miniature Voltage Control Stepper Motor Controller drawing

Miniature Voltage Control Stepper Motor Controller typical connection

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