Vacuum Tubes Valves
Musical & effects
Yagi Uda Antennas
Metal Detector Circuits
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Human Sensing Circuits
RF & Radiation
Optical Sensing Circuits
Free Energy Circuits
AC to DC & DC to DC
Solar Cell Circuits
Micro Power Circuits
Switching Power Supplies
Light Laser LED
Digital to Analog
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Data Bus Circuits
Voltage to Pulse
Current to Voltage
Frequency to Voltage
RF Converter Circuits
Sine to Square Wave
Voltage to Current
voltage to frequency
Period to Voltage
Video Wall circuits
TV Video Circuits
Motor Control Circuits
8051 / 8052
PCB CAD Software
Car bike Circuits
555 Timer Circuits
Remote Control Toy
H Bridge Circuit
Interconnection & Timing
Digital Signal Integrity
Digital & Bipolars
Sensors & Detectors
Regulated Power Supply
4 Band Resistor
5 Band resistor
6 Band resistor
Motor Control Circuits
Motor Control Circuits
TB6556FG 3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller
The TBA120U is an i. f. Amplifier with a symmetrical FM Demodulator and an a. f. Amplifier with adjustable output voltage. The a. f. Amplifier is also provided with an output for Volume Control and an input for VCR operation. The input and output of the TBA120U are especially designed for LC-circuits, but the input CAN also be used with a...
12F675 based Brushed Motor ESC
This project documents how to build and construct your own Brushed Motor ESC for Cars and Boats using a Microchip 12F675 PIC and a small number of standard components. This ESC grew out of an earlier aircraft ESC. A number of people asked for an ESC with brake and reverse operations that were suited to Car and Boat operations. While the earlier de
PWM Motor/Light Controllers
Unipolar Stepper Motor Controllers
This is a very good integrated circuit. There is no need for any external glue logic to drive the circuit, there is only 2 pins to drive the motor, one for controlling the direction and the other to trigger the stepping pulses. It provides a very compact design that drives 5 or 6 or 8 wire stepper motors. The 5 or 8 wire stepper motors are treated
DC Motor Control circuit diagrams
DC Motor Reversing circuit diagrams
Pulse Width Modulation DC Motor Controls
This simple pulse width modulation DC motor control eliminates these problems. It controls the motor speed by driving the motor with short pulses. Thesepulses vary in duration to change the speed of the motor. The longer the pulses, the faster the motor turns, and vice versa. 2. M1 can be any DC motor that operates from 6V and does not draw more...
Stepper Motor Controllers
The circuit is very simple and inexpensive. This is good thing because most commercial stepper motor controller ICs are quite expensive. This circuit is built from standard components and can easily be adapted to be controlled by a computer. If you use cheap surplus transistors and stepper motor, the price of the circuit can be kept to under $10.
Simple DC motor PWN speed controls
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 diode) is constant and equal to 22Kohm (givin a frequency of about 1Khz, notice the hum). When the potentiomenter is all up, the Rcharge resistance is 1, 0 Kohm (the diode prevents the capaci
SP10 motor controller
Those who`ve scrutinised my PC-board layout very closely, will see that I`ve changed the design slightly from the circuit which I posted a while back. ..
Wiring A Motor Control Electrical
I am wiring a three phase motor through a two pole vacuum switch. two lines go through the switch but one line is always hot to the motor. is this proper or is this a safety issue?..
AUV 2002/2003 Motor Controllers
motor control inverter (AC drive) in mine industry
motor control, energy efficiency of inverter (AC drive) selection and parameters setting guidance in mine industry: vector control, open loop or closed loop control, with energy braking unit or energy feedback unit..
stepper motor controller
hi, I have 2 stepper motors to be controlled by dspic. I have programmed the pic. Im confused in usng L298 s. Can someone help me with a circuit..
Integrated MCUs simplify hybrid EV motor control
Stepper Motor Controller
Stepper motors are useful for relatively low-speed, intermediate-torque drive and positioning applications, particularly where accurate sub-revolution rotor position control is necessary. Motors of this type are commonly used to drive the reels on electromechanical slot machines (one-armed bandits), to position floppy disk drive heads, operate...
DC Motor Speed Controller
This circuit takes advantage of the voltage drop across bridge rectifier diodes to produce a 5-position variable voltage supply to a DC fan or other small DC motor. It is not as efficient as a switch-mode circuit but it has the virtues of simplicity and no switching hash. The four full-wave bridges are connected so that each has two pairs of serie
Infrared Toy Car Motor Controller
This add-on circuit enables remote switching on/off of battery-operated toy cars with the help of a TV/video remote control handset operating at 3040 kHz..
Rolling Shutter Motor Control
An electrically operated rolling shutter usually has a standard control panel with a three-position switch: up, down and stop. If you would like to automa..
Stepper Motor Controller
Stepper motors are available in several versions and sizes with a variety of operating voltages. The advantage of this general-purpose controller is that..
Two Basic Motor Speed Controllers
Here are two simple 12V DC motor speed controllers that can be built for just a few dollars. They exploit the fact that the rotational speed of a DC motor..
PWM Lamp or Motor Controller
This is another design generated at the request of my father. It is designed to be a dimmer for a 12V reading lamp, but could also be used as a motor speed controller (for a drill). The circuit pulse the voltage seen by the load an the pulse width is variable across the entire range from 0 to 100% (i. e. from off to fully on). The circuit is extrem
DC motor controller diagram with SCR and cmos ic
This is speed motor controller circuit of 12V DC motor. You can adjust the speed of rotation of the spindle motor from 5-60 cycles per minute. The work of..
Simple Miniature Motor Controller by LM317
I got this from a dosing pump control circuit. we use cool IC is no. lm317 circuit, It can uses with power supply source 24VDC and adjust voltage output 1.25V..
Commutator Type Motors
Split Phase Motors
Basic Start/Stop AC Motor Control Schematics
Schematics Split Phase Motors
Basic of Motor Control
diagram design dc motor controller
planning build mosfet h bridge motor control
At 9 volts the maximum stalled current of the motor types I`m going to use will be 700 mA. Since I`m not real experienced with this I want to check that I`m choosing good mosfets, I`m pretty clear on the rating, they say what current and voltage they can handle. But I`ve found with some the mosfets, particularly P type, the RDS (on) is fairly...
dc motor control circuit
Stepper Motor Circuits
Remote Control Circuits
Direction Finder Circuits
Power Control Circuits
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
Digital Signal Integrity
Interconnection and Timing of Digital Circuits
CMOS Circuits Tutorial