Data Sheet

ManualsBrandsPololu ManualsSerial DC ControllersPololu Jrk 3A 8-28V USB Motor Controller with Feedback (with headers)

RB-Pol-128

Pololu Jrk 21v3 USB Motor Controller w/ Feedback

The jrk 21v3 motor controller is a highly configurable brushed DC motor controller that

supports four interface modes: USB, logic-level serial, analog voltage, and hobby radio

control (RC). The controller can be used with feedback for closed-loop speed or position

control, or it can be used without feedback as an open-loop speed control. The continuous

output current is approximately 3 A in the recommended operating range of 8–28 V, with

derated performance down to 5 V and transient protection to 40 V. The board ships with

connectors installed as shown (no soldering required).

Overview

The jrk 21v3 is a versatile, general-purpose motor controller that supports a variety of

interfaces, including USB. The broad operating range from 5 V to 28 V and continuous output

Summary of content (4 pages)

PAGE 1
RB-Pol-128 Pololu Jrk 21v3 USB Motor Controller w/ Feedback The jrk 21v3 motor controller is a highly configurable brushed DC motor controller that supports four interface modes: USB, logic-level serial, analog voltage, and hobby radio control (RC). The controller can be used with feedback for closed-loop speed or position control, or it can be used without feedback as an open-loop speed control.
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current of 3 A (5 A peak) allow this board to control most small DC brushed motors. Analog voltage and tachometer (frequency) feedback options allow quick implementation of closedloop servo systems, and a free configuration utility (for Windows 7, Vista, or Windows XP) allows easy calibration and configuration through the USB port.
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4. 0–5 V analog voltage interface for direct connection to potentiometers and analog joysticks. Two closed-loop feedback options: 1. 0–5 V analog voltage. 2. Frequency/tachometer digital input up to 2 MHz with 1 ms PID period. (Open-loop control with no feedback also available.) Simple configuration and calibration over USB with free configuration program (Windows 7, Vista, and Windows XP compatible). • Configurable parameters include: • PID period and PID constants (feedback tuning parameters).
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General specifications Motor driver: Motor channels: MC33926 1 USB; non-inverted TTL serial; Control interface: RC servo pulses; analog voltage1 Minimum operating voltage: 5V Maximum operating voltage: 28 V Continuous output current per channel: 3 A Peak output current per channel: 5A Current sense: 0.5 V/A2 Maximum PWM frequency: 20 kHz Minimum logic voltage: 4 V3 Maximum logic voltage: 5V Reverse voltage protection?: Y Partial kit?: N Notes: 1.