Электронный магазин частей для минироботов Миниробо

Описание

Описание
Jrk 21v3 является универсальным моторным контроллером, который поддерживает различные интерфейсы, включая USB. Широкий диапазон напряжений (от 5 В до 28 В) и непрерывный выходной ток 3 А (5 А пик.) позволяют ему управлять большинством небольших щеточных DC-моторов. Аналоговое напряжение и тахометр (частота) обратной связи позволят быстро создать серво систему замкнутого цикла, а бесплатная утилита конфигурации (для Windows XP или Vista) позволит легко откалибровать и настроить её через порт USB.
 

Key improvements over competing products and earlier Pololu motor controllers with feedback include:

• USB connectivity with emulated serial (COM) port allows direct motor control from a PC.
• Ultrasonic PWM to eliminate switching-induced motor shaft hum or whine.
• Robust, high-speed communication protocol with user-configurable error condition response.
• High internal resolution (12 bits) for smooth and flexible calibration to various input and feedback devices.
• Current sensing and limiting.
• Reversed power protection.
• Field-upgradeable firmware.

Main Features of the Jrk 21v3

•  Simple bidirectional control of one DC brush motor.
• 5 V to 28 V operating supply range.
• 3 A maximum continuous current output (5 A peak).
• Four communication or control options: 
  • USB interface for direct connection to a PC.
  • Full-duplex, TTL-level asynchronous serial interface for direct connection to microcontrollers or other embedded controllers.
  • Hobby radio control (RC) pulse width (PWM) interface for direct connection to an RC receiver or RC servo controller.
  • 0–5 V analog voltage interface for direct connection to potentiometers and analog joysticks.
• Two closed-loop feedback options: 
  • 0–5 V analog voltage.
  • 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 XP and Vista compatible).
•  Configurable parameters include: 
  • PID period and PID constants (feedback tuning parameters).
  • Maximum current.
  • Maximum duty cycle.
  • Maximum acceleration.
  • Error response.
  • Input calibration (learning) for analog and RC control.

• Optional CRC error detection eliminates communication errors caused by noise or software faults.
• Reversed power protection.
• Field-upgradeable firmware.
• Optional feedback potentiometer disconnect detection.

 SpecificationsMotor 

• channels: 1 
• Operating voltage: 5 – 28 V
• Continuous output current: 3 A
• Peak output current: 5 A
• Auto-detect baud rate range: 300 – 115,200 bps
• Available fixed baud rates: 300 – 115,200 bps
• Available PWM frequencies: 20 kHz, 5 kHz
• Reverse voltage protection?: Yes
• USB connector style: USB Mini-B

Included Hardware

The jrk ships with a 14×1 straight 0.100" male header strip and two 3.5mm, 2-pin terminal blocks. To provide maximum flexibility, none of these parts are soldered to the board.
For the most compact installation, you can solder wires directly to the jrk pads themselves and skip using the included hardware. The included hardware allows you to make less permanent connections. You can break the 14×1 header strip into an 8×1 piece and two 3×1 pieces and solder these strips into the jrk’s I/O pads. 

Note: A USB cable is not included.

 

FAQ`s

FAQ`s
 

Ресурсы

Ресурсы
Documentation and other information
Pololu Jrk 21v3 USB Motor Controller User’s Guide 



File downloads
Drivers and configuration utility for jrk 21v3 motor controller umc01a (5039k zip) 
This compressed archive contains the drivers that Windows needs to recognize the jrk as well as the Windows XP/Vista software that allows configuration of the jrk.

 

Галерея

Галерея