Zero crossing switch
Posted on Jan 11, 2013
New Circuits
-
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.....
.
The camera rotator circuit uses a 2716 EPROM to store a table of logic values that control the...
In the precision circuit, an operational amplifier provides a buffered output and also acts as a...
To prevent loss of data when a CMOS RAM is switched from normal operation (Vcc = 5 volts) to...
The alarm is built around two audio oscillators, each using two NAND gates. The detection...
When long ranges must be worked with IR light sources, and when high system reliability is...
The TINAH board shield, a printed circuit-board shield designed and built for Phys253 and first...
Typical F71T12 100 W bi-pin lamp used in tanning beds. Note the (Hg) symbol indicating it...
Cordless telephones are very popular nowadays. But they have a major drawback, i. e. they cannot...
This the circuit AC dimmer low voltage For lamp 6V. While this friends may don`t see the...
This was a small circuit made for driving an Impact counter. The heart being ICL8038. It must...
This device and all information contained on this website is for educational purposes only. This...
The 7th overtone of 18mhz (17m) is 144mhz (2m) smack dab in the CW region. Icarus a HAB project...
120V galvanic acupuncture salmon RI. Ma wind down a wind rectification, DZ limit irrigation to...
Common base transistor amplifier circuit of a unit Common base amplifier basic structure of the...
characters left: