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Motors: Motor Speed Control (Stepper, Servo Motor Controllers)

Motor Speed Controller Circuits

control the speed of regular motors, servo motors, stepper motors, etc. with these motor speed control circuits.

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A small motor control electronic circuit schematic. Control the speed of your motors with this low rate speed control electronic circuit.
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Control RC motor speeds with this 10 amp adjustable motor controller circuit. Uses a total of 5 2N3055 high power transistors.
Photo: DC Motor Controller Kit DC Motor Controller Kit
Vary the speed of your DC motor with this inexpensive circuit. Gear boxes can be costly and series resistors may cause stalling. This circuit delivers the voltage to the motor with pulses and the speed is controlled via pulse width modulation (PWM). The s
Photo: AC Motor Speed Controller AC Motor Speed Controller
This kit allows you to control the speed of an AC motor. It can provide high torque at even low speeds.
Photo: Stepper Motor Controller Stepper Motor Controller
Preprinted Circuit Board with all the parts to assemble a controller that allows you to change directions, vary the speed, or single step the included stepper motor. Has LED's that flash when motor steps.
Photo: Servo Motor Driver Servo Motor Driver
Using a PIC 16C71, a crystal, 8 resistors & 4 capacitors this kit will independently control up to 4 servo motors. We do not supply the potentiometers or servo motors. (We used a Futaba FP-S148 for out tests.) 5V DC power supply required. Full instruction
Photo: Stepper Motor Driver Stepper Motor Driver
Drives any 5, 6 or 8 lead unipolar stepper motor. Based on the UCN5804 IC. All features of this IC
Photo: Encoded Stepper Motor Controller Encoded Stepper Motor Controller
This kit uses a Grey switch aka bit switch, to single step a unipolar stepper motor in either direction. Uses a
Photo: Unipolar Stepper Motor Driver Unipolar Stepper Motor Driver
Drives any 5, 6 or 8 lead unipolar stepper motor. Based on the UCN5804 IC. All features of this IC
Photo: Bi-Polar Stepper Motor Driver Bi-Polar Stepper Motor Driver
This kit will drive a bi-polar stepper motor using externally supplied 5 volt levels for stepping and direction.