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Motor speed control circuit – Circuit Schematic
Motor speed control circuit
A shortcoming of the above bi-directional proportional motor control circuit is that with the potentiometer in its center position the motor does not stop, but ...
Speed regulator for dc motors – Circuit Schematic
Speed regulator for dc motors
A four thyristor controlled bridge is used for operation in two quadrants of the torque-speed characteristics. In the trigger circuits the usual pulse transform...
Stepping motor driver – Circuit Schematic
Stepping motor driver
Stepping motors find wide use in disk drives and machine control. MOSPOWER transistors are ideal motor drivers because of their freedom from second breakdown. N...
Pwm motor speed control – Circuit Schematic
Pwm motor speed control
Speed control is accomplished by pulse width modulating the gates of two MGP20N45 TMOS devices. Therefore, motor speed is proportional to the pulse width of the...
AC motor control – Circuit Schematic
AC motor control
The circuit illustrates feedback speed regulation of a standard ac induction motor, a function difficult to accomplish other than with a costly, generator type,...
Bi-directional motor control – Circuit Schematic
Bi-directional motor control
The control of both direction and of proportional motor speed is achieved by rotation of a single potentiometer. The motor driver is an SGS integrated circuit L...
DC variable speed motor control – Circuit Schematic
DC variable speed motor control
Dc power can also be controlled via fiberoptics. The circuit provides an insulated speed control path for a small dc actuator motor (< Vn hp). Control logic is ...
12-24V Impulse control dimmer
This circuit is intended for use with motors, lamps,heatings etc. Continuously from nearly zero up to maximum capacity (5-95%). Almost lossfree control by means...
Control the speed of a DC motor with a potentiometer with an Arduino board – Circuit Schematic
Control the speed of a DC motor with a potentiometer with an Arduino board
A quick circuit showing how to control the speed of a DC motor with a potentiometer with your Arduino board. Also shows how to use a TIP120 transistor to allow ...
Motor Control circuit II – Circuit Schematic
Motor Control circuit II
This circuit is 12 volt motors and lights well regulated. The scheme operates with PWM (Pulse Width Modulation). By IC1, a 555 is a square wave generated by a c...
Variable Fan Controller – Circuit Schematic
Variable Fan Controller
When the fan seized up in my source and I changed it to a type with much less noise, turned on my computer, the largest source of noise CPU cooler fan. The comp...
Single IC chip Motor Driver for robots – Circuit Schematic
Single IC chip Motor Driver for robots
A motor driver! I'm sure you knew that already but that's what it is. A motor driver is required in pretty much all walkers including all of my CW series walker...
Tactile sensors Motor controller – Circuit Schematic
Tactile sensors Motor controller
It's basically a photovore with a couple tactile sensors. It's rather complex but can give neat behaviors with modifications to the circuit. At this point I don...
DC 2 speed Motor Controller – Circuit Schematic
DC 2 speed Motor Controller
The simplest of all motor controllers (besides a straight on/off switch) is the contactor controller. I designed this contactor controller for use in my electri...
AC Motor Speed Control circuit – Circuit Schematic
AC Motor Speed Control circuit
This AC motor speed controller can handle most universal type (brushed) AC motors and other loads up to about 250W. It works in much the same was a light dimmer...
Radio Control Motor speed Interface – Circuit Schematic
Radio Control Motor speed Interface
The second half controls the steering. The mechanical design is a 3 wheeled caddy with the ´single wheel´ actually a closely spaced pair of wheels which are d...
Motor controller with Analogue Opto Isolator – Circuit Schematic
Motor controller with Analogue Opto Isolator
This is a circuit to use a standard, low quality opto isolator to transfer an analogue signal with reasonable linearity and without complicated feedback loops t...
Stepper Motor Encoder Circuit – Circuit Schematic
Stepper Motor Encoder Circuit
The circuit is a simple op-amp but with two diodes (the transistor b-e junctions in the feedback to split the feedback for positive and negative outputs. On pos...
Motor speed controller using LM324 – Circuit Schematic
Motor speed controller using LM324
Most battery motor speed controllers are under manual control and the operator automatically adjusts speed to match demand. Under these conditions closed loop m...
Simple stepper motor controller – Circuit Schematic
Simple stepper motor controller
The circuit shown above can be used to control a unipolar stepper motor which has FOUR coils (I've swiped it off an old fax machine). The above circuit can be ...