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AS3067KT - DC Motor Speed Controller

Ability Level 2: ModerateProduct Formats Available: Pre-Assembled Module (AS) or
Self-Assembly Electronic Kit ( Soldering Required)

Control the speed of almost any common DC motor from 4 to 70V @ 7.5 Amps maximum current without sacrificing motor torque.

The circuit uses an NE556 IC with adjustable speed control to pulse-width modulate a IRF530 MOSFET. This set-up gives maximum motor torque at all speeds.

A potentiometer is used to adjust motor speed to the desired level and an additional onboard trimpot allows you to tweak the output so it provides the maximum motor speed possible.

The controller board requires a 9-16V dc power supply; the motor supply can be taken from the same power supply for motors in this voltage range. Motors outside this voltage range will need to have an independent power source (see documentation for full details). Box included (board sits on top).

PRODUCT SELECTION NOTES: The motor controller should have an output load capacity at least 25% above the motors peak power requirement. Please do NOT rely on motor rating plates for power consumption figures as they often quote average not peak power. You should verify the actual peak power at start-up and under full load before selecting an appropriate size motor controller.

Board supply voltage9 - 16V dc (e.g. 3060, 660.446UK, CFE005)
Motor voltage4 - 70V dc (see power supplies page)
Motor current7.5A maximum (see documentation for full details)
Overall Dimensions (mm)60W x 100L x 30H
Control KnobKB0410
Board ConnectionsScrew terminal blocks
Product FormatSELF-ASSEMBLY Electronic Kit (KT) or
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info
DocumentationUser Manual
  • Control Knob (all models): Order Code KB0410
  • If you require a bi-directional pulse width modulated DC motor speed controller see 3166v2
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