Vacuum Tubes Valves
Musical & effects
Yagi Uda Antennas
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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
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Data Bus Circuits
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Current to Voltage
Frequency to Voltage
RF Converter Circuits
Sine to Square Wave
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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
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
255W Valve RF Transmitter circuit
This transmitter of 255W is depended on the coils we put at it to work in both the middle and the short waves. The power in the antenna is 255W and includes 4 states. The first consists of the EF80 that works as a COLLPITS CLAPP oscillator. Frequency selection is done in a somewhat unusual way: Instead of the variable capacitor, it uses a...
Arduino DAC Signal Generator project
Once the circuit gets current, all variables are initialized and the loop function is continually running. Initially all LEDs are off and there is no signal at the output. By pressing the signal switch, the first light that shows the most signal is at the output and the D0-D7 terminals give the appropriate signal which, when passing from the...
Recording circuit of phone conversations using PC
This circuit is used to record telephone conversations on your landline telephone. All you will need is this small circuit and subscription of your PC. There are few times when we forget what we said or told us. So we need recording. Sometime, not many years ago, recording of this kind of conversation was done with a small tape recorder. The...
FM Micro-Transmitter Bug Surveillance Circuit
The transmitter we recommend to build is quite simple. It can even be built by a beginner. However, unlike the ease of construction and its small size, it is almost certain that it will impress you with its outstanding performance. Its autonomy is 12-15 hours, with a 9 volt battery and its range is from 100 to 300 meters depending on the...
Construction of 50Watt 8Ω two-way Hi-Fi Speakers
The presented speakers are distinguished for their small dimensions and their extraordinary sound. Our home space is often limited and prohibitive for large speakers. This limitation does not mean that we will stay without high Sound Quality. Its design is simple, low cost and is easy to construct. Speaker types are too many and are designed in...
GSM modem circuit with Wavecom WMOi3
Modems are devices that connect either remote devices to a computer, or two or more computers to each other. Their connection is usually wired. The GSM modem we present is wireless. It can connect two computers, a computer with the internet or even be the central unit for a data acquisition system. Generally the construction is a GSM phone...
1W UHF Linear Amplifier with BLW33
This circuit is an amplifier for small transmitters operating in the UHF band, specifically in the 450-800MHz range. The amplifier works in class A and we used the well-known Philips BLW33 transistor for its manufacture. The construction, although simple, can be said to be quite critical due to the high frequency singularity. To achieve this, a...
8W Amplifier with TDA2003 circuit
Many times a small amplifier is needed to meet the needs of small spaces. This amplifier can be either mono or stereo, with this circuitry you can comfortably drive two small speakers. To build the amplifier you do not need anything but a few materials and a small power supply. The power of the amplifier, although low power, will solve many...
FM Linear Amplifier 400mW
This amplifier is intended for amplifying low signals from oscillators in the FM band. It does not have frequency regulators with variable capacitors and coils, it has a wide range and moderate power capable of driving several linear amplifiers. The whole construction is based on the two low-power 2N4427 transistors, which are designed for the...
Digital Signal Integrity
Interconnection and Timing of Digital Circuits
CMOS Circuits Tutorial
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