Adjustable dual voltage power supply circuit
Posted on Mar 28, 2007
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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 text-to-speech converter is built around the SP0256-AL2 speech processor and the Cf6256AL2...
Check your work for possible dry joints, bridges across adjacent tracks or soldering flux...
The Philadelphia, PA based Maker/hacker group Hive76 developed a tiny serial terminal using a TI...
The discussed automatic change over relay circuit was requested by Mr. Karimulla Baig. The...
The Magnitude Comparator is a type of device which compares the two 4 bit binary inputs and...
Here is a simple but inexpensive inverter for a small soldering iron (25W, 35W, etc) In the...
Using an MC25060V2 fan, and I`d like to switch it on and off through software occasionally (i. e....
A microprocessor based project Microprocessor-Based Home Security System . This advance security...
Here we define 7 levels in thereservoir. The sensed values are connected to an encoder circuit....
O The SA1021 integrated Radio receiver circuit is for portable Radios stereo as well as mono,...
The sound will a little 2W+2W just but enough with 6 sizes are inch 8ohm loudspeakers. as a...
This small video transmitter is very usefull for video surveillance on short distances ( up to...
This circuit measures the distance covered during a walk. Hardware is located in a small box...
If you go to most supermarkets today you will see plug in mains powered digital programmable...
Dual Timer Exar XR-2556 for the first time after the timing of the output can be triggered by...
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