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
Motor relay circuit
relay interfacing with coolrunner ii cpld
The CoolRunner-ii board has external 5v Relay interfacing, indicated as in Figure. ULN2803 is used as a driver for CPLD I/O lines, drivers output connected to relay modules. PTB connector provided for external power supply if needed.
relay interfacing with fpga universal development board
The Universal Development Board has external 5v Relay interfacing, indicated as in Figure. ULN2803 is used as a driver for FPGA I/O lines, drivers output connected to relay modules. PTB connector provided for external power supply if needed. Signal LEDs for each relay help you to easy determine current relay state.
relay interfacing with spartan 3 primer
The Spartan-3 board has external 5v Relay interfacing, indicated as in Figure. ULN2803 is used as a driver for FPGA I/O lines, drivers output connected to relay modules. PTB connector provided for external power supply if needed.
relay interfacing with spartan 3an fpga
The Spartan-3an board has external 5v Relay interfacing, indicated as in Figure. ULN2803 is used as a driver for FPGA I/O lines, drivers output connected to relay modules. PTB connector provided for external power supply if needed.
relay interfacing with avr slicker
relay interfacing with lpc2148 arm7 primer
relay interfacing with pic16f877a slicker
interfacing relay with spartan 6 fpga
The Spartan-6 board has on board 5v Relay interfacing, indicated as in Figure. ULN2803 is used as a driver for FPGA I/O lines, drivers output connected to relay modules. PTB connector provided for external power supply if needed.
Coil Winding machine counter with Atmega8 and Reed relay
Using an Atmega8-8PU (configured for 8MHz with external crystal), a Nokia 5110 lcd, and a transistor to handle the pulses from a reed relay. A 3. 3V regulator provides the voltage for the entire circuit. Everything has been mounted on a test board, including the headers for: ISP programmer ( USBAsp ), the 5110 Nokia LCD, the power supply (5V in,...
HIGH-IMPEDANCE RELAYS SCHEMATIC DIAGRAM
DTMF Decoder Relay Driver
Following a power interruption, all relays assume their previous state before the power interruption. (relay states and PIN are stored in non-volatile memory) An Motorola MC145436 DTMF decoder is used, this IC is clocked with a common 3. 58Mhz NTSC colour burst crystal and supplies a divide by 8 clock output (about 450 Khz) which is used as the clo
Driving Buttons Leds and Relays
Photoelectric isolation circuit between TTL circuit and relay circuit
In this circuit, using a photoelectric coupler can reach 100G? isolation between TTL and relay circuit, it avoids relay noise and peak voltage influencing TTL circuit. When the TTL input singal is high, Q1 turns on, there is no current in LED, and there is no light incident on detecor, photoelectric diode is in 5G? maximum impedance value. So Q2...
Relay pull-in timer circuit in time process
the circuit has two-stage circuit structures, the timing time is about 0. 5~12s, and in figure (b), the range of the timing time is 1~160s. The parameters of transformer: iron chip: M42/15. 7 silicon steel sheet; winding: 0. 18mm, enameled copper wire 1200turns.
The series connecting control circuit of electric contact pressure gauge and time relay
As shown in Figure, the circuit usestwo time relays KT1, KT2 to connect with thecontactsofelectric contact pressure gauge SP in series. When liquid or gas pressure has not yet reached, it can overcome thetrembling or spark phenomenons because of the SP`s incomplete separating andtoucing in the crash time of motor automatic start or stop,and...
Sound-Activated Lamp circuit diagram (Relay/Switch)
This simple circuit shown int the schematic diagram actives the switch using sound. We can use this circuit for various applications, such as automatic (sound-controlled) disco light or car s LED light show. The Q1 amplify the audio from mic. The R1 is used to adjust the peak of signal to greater than about 0.7 volts, act as sensitivity...
Driving Relay with 555 IC
This is a Driving Relay circuit using 555 IC. The circuit is used to drive a relay to avoid 555 hangs up, it uses an inductive feedback. The coil is prevented..
Relay Driver with Strobe
LM111 comparator can be used o design a relay driver with TTL strobe, this can be used to provide more control of your relay driver. You can control the strobe..
Relay Circuit Detects Light Change
Configured with capacitive coupling (by inserting a small cap between photo-transistor and bipolar transistor), this relay circuit will respond only to rapid..
General Infrared Remote Controlled Relay
This relay circuit is controlled by almost any type of infrared remote controller. This circuit works on assumption that almost all remote controller use high..
Raspberry Pi Driving a Relay using GPIO
There are only four components required, and the cost for these is around 70p, so it would be a good candidate for a classroom exercise. Even a cheap relay like the Omron G5LA-1 5DC can switch loads of 10A at 240V. A word of caution: don`t tinker with mains voltages unless you`re really (really) sure about what you`re doing. A mechanical relay...
A-C STATIC LATCHING RELAY
Is equivalent to single-pole electromechanical latching relay with electrically isolated solenoid. Once turned on, circuit remains in conducting state even though line voltage is interrupted for long periods of time. Positive reset action requires that minimum load current of 1 amp flow whenever circuit is closed. -"Silicon Con-trolled Rectifier Ma
Solid state relay circuit with MOC3011 triac driver
Solid-state relay circuit with input protection of the MOC3011 triac driver. The input voltage to the protection circuit can be 3 to 30 volts DC (courtesy Motorola Semiconductor Products Inc. ).
Spitfire/GT6 Relay and Blinker Information
The Haynes manuals is extremely confusing regarding the labeling of the relays on Spitfires. The two ways they confuse readers is 1. the illustrations show right hand drive cars with different locations for relays, and 2. the naming of the relays is strange (at least to North American Spit owners). There are three relays grouped together on the bu
5-Volt RelayCircuit for Controlling AC Current
The following schematic shows the Relay Wiring Circuit Diagram for controlling an Air Conditioner or other higher high-current device from a microcontroller..
Two Simple Thermistor-Controlled Relay Circuits
You can use a Cmos 4001 or a Cmos 4011 in this circuit. They have four - two-input - gates. In each case - the two inputs are joined together. So the gates are being used as simple inverters. = This means that when the two inputs are high - the output will be low. And when the two inputs are low - the output will be high. = The output from the cir
Light Dark Sensor With Relay Circuit Using LM741
Stepper Motor Circuits
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