A delay circuit battery
Posted on Mar 28, 2007
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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To display an rf signal, connect LI to the transmitter and points A and B to the vertical plates...
April 2006 was the twentieth anniversary of the Chernobyl reactor accident. In the days following...
This audio amplifier showed in this circuit diagram, is a very simple and efficiency audio...
I am a mechanical engineering student, and for a part of my design project I wish to use a timer...
This is a 16X2 switcher so it gives me plenty of room for expansion. While the cameras are nice,...
The design is based around a pair of 433MHz wireless modules. These can be bought pre-built and...
The AN12974A Audio Power Amplifier features built-in AGC circuitry and Spatializer environ, . ,...
First of all, the circuit is ok, but it`s rather unstable. It varies with temperature, and, for...
This is another design generated at the request of my father. It is designed to be a dimmer for a...
Using the principles of a horizontal steam engine I constructed a model in which the steam...
I liked the idea of distributed active RIAA correction and also the concept of using negative...
High pressure alarm High sensitivity, high-voltage electric energy in the body from lOkV 2m at or...
3133 circuit shown in FIG. Figure 3-133 (a), dynamic braking (b), (c) the three lines by manually...
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