Vacuum Tubes Valves
Musical & effects
Yagi Uda Antennas
Metal Detector Circuits
Liquid Sensing Circuits
Light Sensing Circuits
Voltage Detector Circuits
Air-Gas Detection Circuits
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
Analog to Digital
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
DIY HV Variable Cap
DIY PMA alternator
Interconnection & Timing
Digital Signal Integrity
Digital & Bipolars
Sensors & Detectors
Regulated Power Supply
4 Band Resistor
5 Band resistor
6 Band resistor
Stepper Motor Circuits
Stepper Motor Circuits
LMD18400 for four-phase stepper motor drive
DMOS power switch ON-state resistance has a positive temperature coefficient, four switches can be arbitrarily parallel to increase the load current, and therefore a monolithic
Three-phase six-step motor control circuit diagram composed of MC33035
Fig application circuit is a three-phase full-wave six-step driving an open loop motor controller circuit connection diagram. Wherein the power switching transistor Darlington
The circuit shown in Fig. 62-15A is designed to drive a 15-V, two-phase, bipolar stepping motor, providing a bidirectional single level voltage across each winding at currents of up to 9.6 A. The circuit consists of two identical transistor bridge stages employing complementary npn and pnp devices. The transistor conduction sequence is...
Bipolar Stepper Motor Driver Circuit
A 4017 decade counter/divider driven from a low-frequency oscillator (Ul-a and Ul-b) is used to drive transistor switches to sequence the windings, as is needed. MOT1 is a 12-V stepper motor. R9 and RIO are selected for the motor`s current rating. A 3.3-Hz signal from Ul will cause the motor to run at 1 rpm,
Bipolar stepper motor driver module circuit
Circuit works: Figure shows a dedicated stepping motor controller L297 key pin, 17 feet (cw / ccw) is used to control the stepper motor rotation direction
Two-phase stepper motor drive system circuit
Two-phase stepper motor typical application is shown in Figure 5-15 Xin, made up of two pieces UC3717A can form a two-phase permanent magnet or hybrid stepping motor microcomputer control system.
Rapid control circuit of a stepping motor
The figure shows that dark tomb electric locks, fti: al: 4046B and XOR f] as the main control circuit, called S emitted pulses and silicon successive pulses built 4 Shaanxi.
SAA1042 stepper motor control circuit
A typical application example shown, SAA1042 12V stepper drive motivation, phase winding current is taken as 200mA. Choose from the RB Figure 5-10, taking RE = 56kfl. It is connected to the output of
PPMC and stepping motor driver IC dedicated connection circuit
PPMC external UChl 5804 shows four-phase stepping motor drive IC is shown moving down. It uses the P-OUT, ccw / cw and HOLD output. Use UCN5804 9 and 10 pin logic level can
Stepper motor control circuit
This machine uses FD-CAS-923 1 stepper motor control experiment board with 4-phase step motor to avoid its schematic shown in Figure 4-42a, JK1 cop 40 core flat cable connector, the signal arrangement of EICE51 simulation compatible interfaces can
Based LMD18245 bipolar stepper motor control circuit diagram
An innovative current detection method, eliminating the power loss of the sense resistor in series with the motor, a 4-digit - analog converter (DAC), provides a digital contro
Three-phase stepper motor control circuit
As it can be seen from the figure, + DC Solid State Relay (SSR) of the input stage is an opto-isolator, when the switch output is high, by inverting driver circuit goes low, so
Bipolar stepper motor drive circuit diagram
Bipolar stepper motor drive circuit is shown, it will use eight transistors to drive two phases. Bipolar drive circuit can drive four-wire or six-wire stepper motor, although t
3V LED Chaser
There are many 9V chaser circuits that seem to waste about 7V when driving LEDs that are only about 2V. This project is unique, because it uses only two inexpensive alkaline battery cells totaling 3V for power. Since most of the waste is eliminated, the cells last a long time. Unlike the other circuits, this one flashes the LEDs for only about...
Programmable Clock Oscillator
This is a voltage controller oscillator that was designed as a wide range oscillator to generate clock pulses for a stepper motor drive system. It does however have some interesting features. The original application used a stepper motor for its ability to operate over a very wide speed range, so this oscillator is also designed for a very wide...
ADC controls multiple stepper motors
Typical stepper-motor control circuits use either logic gates and flip-flops or shift registers to generate the proper sequences of binary codes that produce bidirectional stepper-motor movement. A conventional stepper-motor-control circuit uses a square-wave generator, a sequence generator, or a shift register and current translators to control...
Simple circuit controls stepper motors
Stepper motors are useful in many consumer, industrial, and military applications. Some, such as personal-transportation systems, require precise speed control. Stepper-motor controllers can be simple (Figure 1), but they require a variable-frequency square wave for the clock input. The AD9833 low-power DDS (direct-digital-synthesis) IC with an...
555 stepper pulse generator
The 555 Stepper Pulse Generator kit will help you with the pulse required to drive your favorite DC Servo Motor application. This kit uses the famous 555 timer IC for generating the Stepping Pulse.
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 positioning control. This does not mean that intelligent, and autonomous driving the motor in response to movement commands from the host. The key to controlling the pulse motor, the stall is to...
Stepper Motor Controller
This circuit leads palmorefmata coils,, engine. Each coil is driven by a transistor type Darlington. Darlington Transistors internally comprise two transistors connected in series. The "hfe" Darlington is equal to the multiplication of "hfe" of both its internal transistor. The Darlington 2SD1209K used in the circuit is "hfe" greater than 4000....
Servo tester with PIC12F675
This is a simple servo tester which will comprehensively test the capabilities of almost any modern servo. It has two pushbuttons, CENTRE and SWEEP and a potentiometer which works as follows: - CENTRE Does exactly that, centers the servo, afterwards the potentiometer determines position. - SWEEP Sweeps the servo back and forth at a rate...
Stepper Motor controller with HC11
PID-Control with 68HC11. STEPPER CONTROL. 68HC11 read encoder. High accuracy RPM-measurement with 68HC11
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 for a motor current of up to about 500mA per winding with suitable heat sinks for the SL100. For higher currents power transistors like 2N3055 can be used as darlington pair along with...
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 positive output from the stepper coil the top transistor tuns on, on negative, the bottom. One or other LEDs lights for each polarity. Resistor R can be omitted: its function is to allow a...
stepper motor control
The 3D printer requires separate control for three independent axis. Each of the controlled axis must have a high precision electronic driver. Mechanical part of the each axis is based on a precise bipolar stepper motor connected to a drive shaft via claw coupling. An additional driver and mechanics are used for the extruder. The stepper motor con
Motor Generator Stepper
Stepper motors are a subject that keeps recurring. This little circuit changes a clock signal (from a square wave generator) into signals with a 90-degree phase difference, which are required to drive the stepper motor windings. The price we pay for the simplicity is that the frequency is reduced by a factor of four. This isn`t really a problem, s
Stepper Motor Interface to Microcontroller
As you see in the circuit above the four pins "Controller pin 1", 2, 3 and 4 will control the motion and direction of the stepper motor according to the step sequece programmed in the controller. As already discussed in case of L293D, Here in this circuit too the four pins "Controller pin 1", 2, 3 and 4 will control the motion and direction of...
Bipolar Stepper Motor Driver Circuit
Briefly, the circuit works as follows; the clock signal drives 4 D-flipflops in the control section which store the on/off state of each of the current directions for the two stepper motor coils. The flipflops comprise a FSM (finite state machine) which advances to the next step of a half-stepping sequence on each rising clock edge. The drive sect
Computer Controlled Stepper Motor
In this article, we will connect a stepper motor to our computer`s parallel port, and then we will write some code to control it with the scroll wheel on a mouse ( video ). If you have never worked with stepper motors, you will surely have a lot of fun with this project. With stepper motors, you can build things such as robots, automatic fish feed
SLA7062/67 Step Motor Driver
The SLA7062/67 chip is a unipolar driver and can provide up to 3amps. The chip is hard to find and will cost about $10. each. Using Google, I found the three that I needed for my prototypes. Newark (Farnell) sells them but has no stock. The pcb`s can be purchased from Batchpcb and below find the BOM and the circuit diagram. This board uses the 10
Bipolar Stepper Motor H-bridge
This paper describes the process by which a control circuit for a stepper-motor was designed
This paper describes the process by which a control circuit for a stepper-motor was designed. Due to the nature of the stepper motor, the control circuit had to be a state machine that cycled through four output states based on two input conditions (direction and enable)
Remote Control Circuits
Direction Finder Circuits
Power Control Circuits
Motor 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...
DIY HV Variable Capacitor
DIY PMA Alternator Plans
Digital Signal Integrity