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Posted on May 23, 2012
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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Like most other ESCs, this one is built up using N-channel Power MOSFET`s because of their good...
Both halves of the circuit are identical. Both inputs have a dc path to ground via the input 47k...
A JFET transistor-is used as a high-to-low impedance converter and signal mixer. Input impedance...
The length of time the circuit stays on for depends on how long it takes for the stored...
The right leg driver circuit is where many amplifier board circuits common signals are summed and...
This emergency LED light is simple, inexpensive and easy to build. The circuit to the battery and...
This handy circuit can be used to charge from one to 12 NiCd cells from a car battery. Up to six...
This power inverter circuit will provide a very stable Square Wave Output Voltage. Frequency of...
This application note describes a Digital Blood Pressure Meter concept which uses an integrated...
This circuit is intended as a reliable replacement to thermally-activated switches used for...
The circuit is built around two 555 timer ICs. U1 and U2. U1 is wired as a variable duty cycle...
A simple pulse generator with a variable duty cycle and frequency is often useful in the lab to...
This is a simple how-to guide on making a cheap remote/wireless ignition for a spud gun or other...
Focus on measuring low-level, HF circuits with a return loss bridge ” topics such as using the...
A typical circuit at 20 MHz is shown. The crystal, which has an internal series resistance RS, of...
The goal was to make a small USB interface board which could easily be connected to...
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