AC-DC & DC-DC Circuits
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A 50W isolated forward-converter switching supply for telecom applications is described. Most aspects of the design are discussed.... -
After searching for a few days i cant find a solution for this idea. Sorry for the wordy`ness I`m creating a switch panel in the dash containing 4.... -
I bring you wiring diagram of PCs power supply of DTK company. This power supply has ATX design and 200W performance. I was drawed diagram, when I repaired this power supply. This power supply circuit uses chip TL494. Similar circuit is used in the most.... -
Using Integrated Switching Regulators When it came to power supply design, most Engineers would scratch their head thinking, œWhere do I start? Decision must be decided concerning.... -
I was asked by the MDRC committee of the day if I would like to take on the role as Electronic components and project officer, I didn`t see any problem with this and agreed. After being elected into the position I soon found out that a little more time would.... -
The design presented here is a little bit unusual in its arrangement, but offers some advantages over the usual designs that I will explain in the following paragraphs. First, let`s start from the basics: A linear power supply has a transformer that steps.... -
The SSY-1 is a small pulsed Nd YAG laser originally used as part of the laser rangefinder in the M1 Abrams tank. The laser head and PFN-1 pulse forming network (flashlamp capacitor, inductor and diode) are readily available for under $250 as surplus on eBay.... -
The SheevaPlug is reputed to have a marginal power supply. It seems to be more of an issue for the people in the UK running at 240VAC, and it also seems to be a problem to load the USB too heavily, as happens if you want to add an external mechanical disk.... -
This chapter provides detailed schematics of a variety of power supplies suitable for use with the common Ar/Kr ion tubes available to the hobbyist on the surplus market. Included are examples of commercial designs (Omnichrome 150R and 532 head, Lexel 88 and.... -
This chapter provides a variety of circuits of both line powered and inverter types for the basic power supply, some with regulators, modulation inputs, and other goodies. Several have been reverse engineered from actual working commercial products. Some of.... -
This chapter contains circuit diagrams for several power supplies for pulsed solid state lasers. These include units suitable for driving the popular Hughes ruby and YAG rangefinder laser assemblies as well, one using the flash from a disposable pocket.... -
Those of you who own large 500 watt and higher Astron linear power supplies, and even large HF amplifiers, know all too well that "GNNNNnng" sound that they often make when turned on. This is due to the high inrush (surge) current flowing into the.... -
To obtain the power supply graphs on the previous page, I didn`t stand outside for two days straight measuring the power sources with a voltmeter. Instead, the circuit itself is able to independently monitor the power sources with the addition of a few.... -
This is a simple circuit which outputs a voltage which is more than the input. This could be used to power 12v or 9v devices from a 6v system, or even 6v devices from a 1. 5v battery (see below). This circuit uses bog standard parts, without requiring a.... -
Here we introduce a kind of 30W micro switch regulated power supply composed of TOP224Y, its circuit is shown in the diagram. Its feature is using TL431 to replace regulation tube VDz2 in the sampling circuit. That is, it can reach the technical target of.... -
The aim of a DC power supply is to provide the required level of DC power to the load using an AC supply at the input. Different applications require different attributes, but more often than not these days DC power supplies provide an accurate output....
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
Charge current: I=0,45V/R2 Power-dissipation by R2: (0,45 * 0,45 / R2) ! Please adjust 13,8V by...
This circuit is able to take you to the world of the Wild West. For this it uses the integrated...
Agy used for the first time Lilypad Arduino and LED s on a textile project called Blinky Bike...
When the battery voltage is 11. 5V or less transistor Q1 is turned on and the LED D1 will be...
A strip of LEDs from a microcontroller using PWM to control the brightness. The strip I have...
This is a step by step guide to modifying the disposable camera flash unit that powers the Geiger...
A regulated 5 volt DC supply is essential for powering micro-controller and TTL based circuits....
Today`s electronic designs are focusing more on optimizing efficiency in an attempt to minimize...
This 2 channels audio mixer is based on the 2n3904 transistors which forms 2 preamplifiers. The...
Ever accidentally left your front door ajar and had a pet escape Here is a smart solution to this...
By configuring a comparator and a transistor to control the oscillator in a charge pump circuit,...
Every IC on the I ²C bus requires a unique address. Usually such ICs can select from a set of 2...
The TRIAC is a three-terminal device similar in construction and operation to the SCR. The TRIAC...
This is a simplified version of the Universal Keypad-Operated Switch. I have modified the design...