NiCad Charger with temp control
Posted on Jun 7, 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 simple circuit can detect the invisible fields of voltage which surround all electrified...
Although many circuits use the varying-capacitance method for checking liquid levels, this simple...
The range of this transmitter is about 50 feet with a short whip antenna. The tone generator, is...
This switch uses four CD4013 BE dual flip-flops, an inverter, and an optoisolator to drive a...
AVR ISP interface (optional but handy if you don`t like the boot loader, are too poor for a JTAG...
The above cycle is therefore repeated only when S7 at the Q1 output is pressed in time. When all...
Hooked up an electret mic into an opamp and gave output to my arduino microcontroller. The ADC on...
This is a 100 watt basic power amp that was designed to be (relatively) easy to build at a...
The Tda2005 IC has a high output power: PO=10W+10W @ RL=2ohm, d=10% (stereo) and PO=20W @...
Many modern circuits tend to work from a single supply voltage of 3V. But often they need a...
The LTC4251/LTC4251-1/LTC4251-2 negative voltage Hot Swap controllers allow a board to be safely...
Divider is the speaker of the brain, is crucial to the sound quality is good or bad. Music...
Drawing, potentiometer RP for adjusting the operating voltage of the relay KA, ensure that the...
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