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
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
Power Control Circuits
Power Control Circuits
Microcontroller Based Telephone Remote Control Circuit
This device allows you to control remotely any (with suitable add-on expansion boards, up to eight) device, such as lights, water heaters (boiler), air-condition, plant watering, alarms, etc via a relay. By using it you can for example water the garden at your country house from the convenience of your living-room, or you may turn on the water...
Automatic switch for batteries
Nowadays the batteries are gaining more and more power, being the only components that fail to provide energy for portable electronic devices. The evolution is rapid, leading manufacturers electronic equipment to attempt to minimize the consumption of their products so that they can operate for several hours using simple batteries trade. In...
Lighting auto controller
The governor following is intended to regulate the light intensity incandescent 220 V. The components in a relatively few, which means it can easily be mounted onto a small plate. After the build, we recommend you place it inside the box which is flush mounted switch ON / OFF the lamp. Setting the switch to ON, the lamp will light after about...
Voltage controlled gain amplifier circuit diagram
1.53 voltage controlled gain amplifier FET connected between the two inputs to the op amp as voltage-controlled resistance, resistance changes linearly with voltage, varies fro
35W resistive and capacitive half-wave phase-shift trigger doer control circuit
35W resistive and capacitive half-wave phase-shift trigger doer control circuit Automatic or semi-automatic welding equipment in order to control the wire feeding, welding car
Thyristor controlled forward start circuit
331 circuit shown in FIG. It uses two-way thyristor controlled motor start and stop. It has no contact, no noise sound, no spark, etc., suitable for frequent operation of the o
A simple control circuit Lantern
220V mains drop by n guanidine D. Yi stream. C. After the spike Bode + 9V voltage supply control circuit. Port G, TG1 to Shang tube vibration: R. w, and hurricane.. w Partial e
KD-1001 produced by lantern controller
220V AC power via a resistor Rl buck, VDI rectifier, VD2 and Cl filtered output voltage of about 3V DC voltage supply manifold KD-1001 electricity. Manifold trigger terminal co
One zero trigger thyristor power adjustment circuit
Thyristor zero trigger circuit output waveform is a sine wave, it will not produce as phase-shift trigger circuit as electromagnetic interference.
Power Power Outages after the call prohibit a re-closure circuit
Power outages after the call prohibit re-closure circuit, can avoid the use of electrical appliances after the power grid
Electronic mousetrap power-saving circuit
Power-saving electronic mousetrap This example describes the usual minimal power consumption, only when the mouse enters the control zone when
100W full-wave single-junction transistor trigger doer control circuit
100W full-wave single-junction transistor trigger doer control circuit It is suitable for constant or variable speed wire feed control wire feed motor. The input control signal
Reducing the power consumption of the circuit diagram ISO103
Shown for reducing power consumption ISO103 circuit. For multi-channel synchronous applications Vcc1 current of less than 15mA,
100W resistance triggered doer control circuit
100W resistance triggered doer control circuit It is dragging the arc welding machine control circuit of the most simple kind. Adjustment potentiometer Rr, can change the DC mo
DUM23-48 / 300 DC power distribution unit electrical schematic diagram
As shown, B2 (13), B3 (14) for the Hall current sensor; FU9 (9), FU10 (10) for the fuse; AP646 alarm signal for the fuse board; terminal X24, X26 and X29 is a user interface panel; XT for the outlet.
Single-phase rectifier DC welding power load from road circuit
Single-phase rectifier DC welding power load from road circuit is shown. Contactor KM use CJ20-40A, 220V. Adjustment potentiometer RP, ensure arcing , the relay KA2 reliable release.
C620 lathe Y- conversion and other power-saving circuit
C620 lathe Y- conversion and other power-saving circuit to the motor reversing or not reversing it, although not by reversing contactor control their machines, such as C620, C630, etc. CW61100A lathes, radial drilling, milling,
SCR AC arc welding machine load path from one power outage circuit
Drawing, Triac V trigger voltage is less than 1V, trigger current less than 30mA.
DK-5A, DK-5AD AC power control circuit
DK-5A, DK- 5AD AC power control circuit circuit shown in Figure 6-77. Figure, SBz the closing button, YA line for the closing electromagnet coil, U.,
A welding load automatic power-off circuit
NE555 tour allows just as vibration. } E input pin 3 River) pulse frequency ult / 5 ~ 20Hz Fan Cave weeks bamboo. Barrel section to ridicule steep scheduled for R and C. Value. m transistor 1j and T} Hungary throw success rate system level power output fl1 sail.
500A power switch control circuit diagram
The circuit uses 50 BUZ23 field effect transistors connected in parallel, tube blocking voltage of 100V. Required control power is extremely small, and there will be no second breakdown and conduction zone positive temperature coefficient phenomenon.
A discrete transistors from the current control circuit diagram of the way
A discrete transistors by the current control circuit diagram of the way
A typical electronic volume control circuit
A typical electronic volume control circuit It shows a typical electronic volume control circuit. The circuit is often used in stereo audio devices through the computer (CPU) i
Two electric motors or electrical interlocking control circuit
A, B and two electric motors (or electronic) allowed simultaneous operation (interlock control). The two motors can (or electronic) of the respective contact normally closed co
A simple grid control circuit
A. B, C for big power split phase I, A + BC Rang generator phase line, A-A indole path string has a 2H220V/15W bulbs, bulbs recovery as both macro instructions J Sweet World as
AC welder saving controller circuit diagram
AC welder is intermittent operation, the intermittent load power consumption during the period up to several hundred watts. AC welder saving controller circuit shown in Fig. Th
APM-81 elevator control cabinet circuit
APM-81 lift the main circuit, the safety circuit and brake circuit:
Conveyor control Ladder
According to the characteristics of the system, using the drum controller to achieve the above requirements, the design of the ladder as shown in FIG. As follows: 1) C631, C633
Synchronous controller circuit diagram of a recording transcript
Activities Modern exhibition, advertising, promotion and propaganda extensive use of sound, light, electricity technology, a number of electrical diagrams, control model, commo
KTM03 type speed control for three-phase half-controlled rectifier circuit
Adjusting the phase potentiometer RP, can change each corresponding thyristor vl-V. Conduction angle, thereby changing the applied voltage across the load size.
KTM03 type used to control the two anti-parallel thyristor circuit
Adjustment potentiometer RP, can change the thyristor Vl, vz conduction angle, thereby changing the applied voltage across the load Rfz size.
Electrical control circuit plow
Agriculture and electrical power harrow plow power cord must be used four rubber cable, wherein a core wire as a ground wire, traction machine housing must be grounded. Two tra
Stepper Motor Circuits
Remote Control Circuits
Direction Finder 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