12V to 3V Car adapter
Posted on Sep 19, 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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This novel buzzer circuit uses a relay in series with a small audio transformer and speaker. When...
This antenna is the result of long term development and user feedback. All ATL-3 loop windings...
The circuit uses a Signetics NE565 PLL (Phase-Locked Loop) as a detector to recover the SCA...
RayDialer TX1 Channel Settings = Note: Switch pulls low, if ON. DIGIT 4 3 2 1 frequencies [Hz] 1...
As I`m working from a single power supply and I`m trying to keep the design small, I`ve been...
The NAND gates use CMOS 4011 chip, a low power component that is suitable for this...
hi every one im not in the line to electronics so please can any one make a diagram for me that...
CD4538 is a dual Monostable Multivibrator. When you trigger the chip the output sends off one...
This was a small circuit made for driving an Impact counter. The heart being ICL8038. It must...
A reasonably effective bfo (bifilar oscillator). Its performance is not comparable to more...
Cooling an instrument or a device can improve the SNR (signal-to-noise ratio), and it can also...
As shown, the circuit due to the integrated amplifier, so the circuit is simple, small size....
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