Power Control Circuits
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Involvement is a modified version of the classic circuit of automatic level control signal used in tape recorders. The purchase price of the components (using TL072) does not exceed CZK 60 for a channel. For a range of entry level audio signal may be.... -
Logic power control of analog regulator can be useful in application where a digital circuit/controller need to control power source, such as in EEPROM... -
This power factor controller accept voltage from 90 to 268 Vac, that`s why we call it power factor controller with universal input, since any standards of mains supply in almost any country would fall within that range. This power factor controller is.... -
The following circuit shows about 741 IC For Constant Temperature Control Circuit Diagram. Features: used to lower the drift of a Ramsey FM10a ... -
Active power factor correction stabilize the electrical demand of a device to give the best power factor characteristic of many types of loads. To meet power factor regulation, a low cost solution should be designed. In many application, the need of high DC.... -
This is a circuit of Closed-Loop Automatic Power Control for RF Applications. The circuit uses a log detector (AD8318) and a VGA (ADL5330). This circuit has a... -
Hysteresis in lamp dimmer or in other electric appliance might cause some trouble if you need a fine tuning, something like out of control. This is a circuit of... -
This a shows the overall circuit diagram of the power control unit. On the left, there is a main relais controlled by the key switch and the ... -
Typical circuit for welding equipment shown on the following circuit diagram. Turn on delay can be controlled accurately with Potentiometer P2. We can discharge... -
This circuit shows about SSR Power Control Unit Circuit Diagram. Features: SSR control box provides the control voltage for the relay. Component: ... -
A step-down circuit used to approximately divide by two the rms voltage between the line input and the inductive load (L1) is shown on circuit diagram below. A turn-on delay of approximately 7 ms is provided by C2 and R3. We can discharge C2 at each line.... -
The YN-460 is a very low cost manual-mode-only shoe mount flash made by a Chinese company Yongnuo. It has become very popular in the strobist community due mostly to its low cost and good performance. In order to change flash power level, the user is.... -
This a shows the overall circuit diagram of the power control unit. On the left, there is a main relais controlled by the key switch and the .... -
This is a IBM ThinkPad T40 Power control circuit. This circuit based on the MAX1631 IC. MAX1631 IC is a Multi-Output, Low-Noise Power-Supply .... -
The following circuit shows about Automatic Room Power Control Circuit Diagram. This circuit based on the NE555 IC. Features: uses two LDRs, use .... -
The circuit is built around two 555 timer ICs. U1 and U2. U1 is wired as a variable duty cycle oscillator with a constant time period of around 0. 1 second. Duty cycle can be varied from 0 to 100 per cent by R4 potentiometer. The output of U1 (pin 3) is.... -
.jpg "Creating an HID Ballast with Constant Lamp Power Control")
The HID ballast circuit includes (Figure 1) a buck stage for controlling lamp current and power, a full-bridge output stage for driving the lamp with a low-frequency (200Hz), AC square-wave voltage and current, and an ignition circuit for producing 4KV peak.... -
Using the ISL6185 USB power controller family can be designed a very simple USB power supply electronic project that provides fully independent overcurrent (OC) fault protection for two or more USB ports. This product family consists of sixteen individual.... -
This DC power supply controller is controlled by pulse width modulation PWM, generated by the circuit around timer IC2 7555 according to the formula: Duty.... -
The circuit is built around two 555 timer ICs. U1 and U2. U1 is wired as a variable duty cycle oscillator with a constant time period of around 0. 1 second. Duty cycle can be varied from 0 to 100 per cent by R4 potentiometer. The output of U1 (pin 3) is.... -
The hardest part of the build was to find and / or design a circuit that could handle the load and still stay with in my budget. This little circuit does both. It varies the power output with one potentiometer (variable resistor) R1. R1 is a panel-mount pot.... -
The ISL6528 provides the power control and protection for two output voltages in high-performance graphics cards and other embedded processor applications. The dual-output controller drives an N-Channel MOSFET in a standard buck topology and a NPN pass.... -
This circuit uses a 555 timer to generate a sawtooth voltage waveform across a capacitor, then compares that signal against a steady voltage provided by a potentiometer, using an op-amp as a comparator. The comparison of these two voltage signals produces a.... -
It would be convenient to use momentary contact push button switch to turn ON and turn OFF your Raspberry Pi (RPi). A press of button should apply power to micro USB header, and keep it ON while Raspberry Pi initializes and starts its application.... -
We can use the flash beam to supply the remote control for the AC power devices. The important point of this device is the memory function. It can continuously supply the power to the device. When it acts the second time, the power will be cut off.... -
Logic power control of analog regulator can be useful in application where a digital circuit/controller need to control power source, such as in EEPROM programmer or other power controls. This is a circuit provide ON-OFF control for 78xx regulator using.... -
The circuit can increase the system power factor ? to the number higher than 0.99, and it can effectively suppress the waveform distortion of the input supply current iin to meet requirements of GB15144 with the distortion index being lower than L level, and.... -
Dimmer Switch Introduction Dimmer switch can be used to replace your electrical switch for lamps, heaters, or some types of electric motor. Dimmer switches....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
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.... -
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.... -
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.... -
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.... -
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,.... -
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.... -
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.... -
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.....
Popular Circuits
This circuit utilizes the MRF123 TMOS power FET. The MRF134 is a very high gain FET that is...
S2 is used to initiate timing. A light-to-dark or dark-to-light transition stops this timer,...
This circuit will generate a linear sawtooth between 30 Hz and 3 000 Hz. Ql is a constant-current s
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There are only four components required, and the cost for these is around 70p, so it would be a...
This little circuit will pay for itself many times over the first time it is used, especially if...
The local oscillator at 1GHz or more to use more common collector circuit, it is not easy to...
Bicycle tire leak detector circuit schematic. Car tire punctured by sharp objects leak site air...
Circle S2 is stable automatic light switch, when S2 is open, the entire circuit is Subsection II...
Europes leading SGS-THOMSON STMicroelectronics recently introduced a tone quite new to the...
FET has high input impedance, high input impedance amplifier can be made. However, FET amplifying...