Control boards:
  R101 Gazelle  
  R102 Bongo  
  R103 Gazelle CP  
  R104 Impala  
  R105 Ethernet  
  R401 Design kit  
  Motor control  
  000200 Motor Drv  
  000600 Motor Drv  
  000620 Brushless  
  Touch screens  
  Control panels with touch  
  Colour screens  
  1/4 VGA 320x240 control panel with touch  


Small controller and Brushless motor driver for MAXON motors


000620 Brushless Motor DriverThis microprocessor embedded control board is build around the ATMEL 89S8252 Flash microcontroller and has been specially designed for the control of commutated (brushless) DC motors. The use of rotor position (Hall) sensors are not required. The current rotor position is evaluated by using the back-EMF sensing technique. This signal is also read by the processor to keep track of the motor position.

Brushless motors have a permanent magnet rotor and a wire-wound stator. They are efficient and provide rapid acceleration, high speed, and smooth, quiet operation. The use of integrated power MOSFET stage produces a high efficiency level. Suitable motors are Maxon 200138(3W), 200141(12W), 200189(30W)
Based on the ATMEL 89S8252 Flash memory micro controller.

  • Onboard processor: allows sequence control.
  • Intelligent: can control all the function of a small machine.
  • Intelligent: can communicate or receive commands serially.
  • Single supply over wide input voltage range (+9 .. 19 V DC).
  • Complementary P and N channel FETs in half bridge configuration.
  • Regulated and adjustable speed control. (Analogue or Digital)
  • Speed monitor output.
  • Fast 8052 type microprocessor with Flash memory.
  • 5V Serial port and/or ISP.
Microprocessor Atmel 89S8252
Flash Standard 8kB (* optional up to 32 kB)
Digital Inputs 11 Inputs ( 8 can be used as input for BCD switches)
Outputs 3 Transistor outputs (600mA/5V)
1 Protected High Side FET 1.5A@ 24V
Motor Driver 3 Phase brushless motor driver NFET=5.3 A, PFET=4.0 A
Fuse Inrush resistor & resettable fuse
LED 1 Red status LED
Connectors Flex for motor, I/O 10 DIP, Power 2.5mm socket
Supply Voltage Single supply 930V DC
Dimensions 54mm x 84mm

Specifications and pricing subject to change without notice.

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