555 timer as a switch-mode power supply
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.....
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This circuit measures RF voltages beyond 200 MHz and up to about 5 V. The diode should be mounted...
This is an on-off control with isolated, low voltage input. Since the switching action is very...
The NE555 is connected in the astable mode and uses only three timing components (RA, RB, and...
I have a big mirror on the left wall, it makes the room brigther, but when watching a movie you...
The project described in this article is a constant Q, fully expandable graphic equaliser. Where...
This device is based on PICl6F628A one-chip computer, adopt one pair and receive and dispatch the...
Overcome a major drawback of the SPI bus. But to explain this, allow me to go on a little detour...
Completely self-supporting garden lamps using solar cells as their energy source are gradually...
This is a Basic Cadmium Sulfide (Cds) Photocell Detector circuit. In this circuit, when the light...
This circuit controls resistive and inductive loads up to 2, 500W. It`s main functional device is...
The TPA3112D1 is a 25-W efficient, Class-D Audio power Amplifier for driving a bridge tied...
This design was created at the request of my father. It is designed to operate a 240V a. c....
This page will be updated as Material becomes available. This New System will essentially replace...
T-40-16 and 555 ultrasonic transmitter circuit configuration as shown in a, the circuit consists...
As shown in the external audio spectrum display circuit, high-end audio equipment are generally...
Automatic recording telephone interface circuit as shown, the circuit has an automatic answering...
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