Advertisement
Motor direction controller – Circuit Schematic
Motor direction controller
This circuit can control a small DC motor, like the one in a tape recorder. When both the points A & B are "HIGH" Q1 and Q2 are in saturation. Hence the bases o...
Motor speed controller – Circuit Schematic
Motor speed controller
During summer nights, the temperature is initially quite high. As time passes, the temperature starts dropping. Also, after a person falls asleep, the metabolic...
Stepper Motor controller with HC11 – Circuit Schematic
Stepper Motor controller with HC11
PID-Control with 68HC11. STEPPER CONTROL. 68HC11 read encoder. High accuracy RPM-measurement with 68HC11...
Stepper Motor Controller – Circuit Schematic
Stepper Motor Controller
This circuit leads palmorefmata coils,, engine. Each coil is driven by a transistor type Darlington. Darlington Transistors internally comprise two transistors ...
Motor speed controller with timer 555 – Circuit Schematic
Motor speed controller with timer 555
Pulse width modulation (PWM) is a technique to control analog circuits with a digital output. PWM is used in many applications, Specially to control light inten...
Simple AC Motor Speed Controller – Circuit Schematic
Simple AC Motor Speed Controller
This circuit will allow you to control the speed of an AC motor, for example an electric drill. The way that this circuit works is as follows. The bridge rectif...
Controlling stepper motors – Circuit Schematic
Controlling stepper motors
The first pulse motor that is used to diss it because it is the positioning control things, we decided to incorporate features that may be needed for positionin...
Dremel Speed Controller – Circuit Schematic
Dremel Speed Controller
The Dremel drill fitted with a mini drill-chuck on a stand is a great setup for drilling circuit boards. The problem is that it does not do low speeds very wel...
Dual DC motor speed control – Circuit Schematic
Dual DC motor speed control
Here is a design for a DC motor speed control featuring: Efficient PWM H-bridge MOSFET architecture. Supply (battery) voltage range from 4.2 to 13 volts. High c...
Another simple H-Bridge circuit – Circuit Schematic
Another simple H-Bridge circuit
You have 4 transistors, wired as ON OFF switches. Two signal lines allow you to run the motor in one direction, when reversed, the motor runs in the other direc...
PC 8Way Relay Board – Circuit Schematic
PC 8Way Relay Board
This board is designed specifically to control the 5-motor Robot Arm sold by Baycom Technologies. It has no input facilities, but it is less expensive than comb...
DC servo motor driver with MC33030 – Circuit Schematic
DC servo motor driver with MC33030
DC Servo Motor Driver kit, designed using MC33030 IC, is the fastest and low cost way of getting your DC Servo Motor up and running....
Auto 12V Fan Controller – Circuit Schematic
Auto 12V Fan Controller
Transistor Q1 can be a 2N2222(A), 2N3904, NTE123A, ECG123A, etc. Not critical at all. It acts only as a switch for the relay so almost any type will work, as lo...
DC motor PWM speed control – Circuit Schematic
DC motor PWM speed control
The 555 Ic is wired as an astable and the frequency is constant and independent of the duty cycle, as the total resistance (R charge + R discharge, notice the d...
Ed Gray Motor Generator
This type of design can produce a very high amperage current for a faction a second that can used to do some useful work if properly harnessed. The switching de...
Controlling Stepper Motor with a Parallel Port – Circuit Schematic
Controlling Stepper Motor with a Parallel Port
This is an easy to build stepper motor driver that will allow you to precisely control a unipolar stepper motor through your computer`s parallel port. With a st...
Motorized Camera rotator – Circuit Schematic
Motorized Camera rotator
The camera rotator circuit uses a 2716 EPROM to store a table of logic values that control the motor driver (H-bridge) circuit. The EPROM data is shown in the s...
Motor Speed Controller – Circuit Schematic
Motor Speed Controller
The circuit described here is for a general purpose device that can control DC devices which draw up to a few amps of current. The circuit may be used in either...
Curtain Control Circuit – Circuit Schematic
Curtain Control Circuit
This hybrid circuit uses a mixture of transistors, an IC and a relay and is used to automatically open or close a pair of curtains. Using switch S3 also allows ...
Motor Fan heat controller – Circuit Schematic
Motor Fan heat controller
The controller uses one or more ordinary silicon diodes as a sensor, and uses a cheap opamp as the amplifier. I designed this circuit to use 12V computer fans, ...