Circuit Lake » circuit

Fast 7.2V NiCad Battery Charger

admin — Thu, 01 Jul 2010 22:09:29 +0000

This battery charger built using IC MAX713, a NiCad battery charger IC from Maxim. It will control the fast charge time and monitor the cell voltage. The project can charges a battery approximately 80% charge in 22 minutes at a current of 2.4 Amps. Once the fast charging has ended, it trickle charges the [...]

Oscillator Project Using ICL8038

admin — Wed, 17 Feb 2010 22:26:53 +0000

The circuit is a easy design an Oscillator. The main component consists of the VCO (ICL8038), the CMOS-compatible output stage using the MOSFET driver chip ICL7667 and the sine and triangle output stage (LT1210). It is capable of producing sine, triangle and square wave output with a frequency up to several hundred [...]

Simplest Radio Frequency Transmitter

admin — Mon, 23 Mar 2009 03:10:14 +0000

This is may be the simplest radio transmitter that you will find anywhere. lt has a total of fiye parts and can be constructed into a very small space. It is great for science fair projects or other science related projects where short range transmission is useful. lt runs on 1.5 to 3 yolts, with [...]

Simple Motorcycle Alarm

admin — Fri, 20 Mar 2009 03:29:28 +0000

If you need an alarm for your bike? then this is a simple – easy to build – transistor based motorcycle alarm could be suit with your need. This alarm will work at 12-volts but you can use 6 volt if you change the relay for 6-volt coil. It will protect your “Classic Bike” from [...]

Audio Detector Circuits

admin — Tue, 21 Oct 2008 06:48:08 +0000

This circuit is for detecting any audio signal with justable noise offset. It could be used to generate a radio mute signal eg. from a PDA. The circuit is consisting of: Input impedance Signal amplifier Rectifier Justable comparator (Noise offset). Download : schematic related search : Electronic Circuit, Audio, Detector (src ) Read more : Audio Detector Circuits Related posts:Metal [...]

RS232 Transceiver Circuits

admin — Mon, 19 May 2008 00:40:55 +0000

There are serveral rs232 transceiver circuit which commond used for communicated between microcontroller and other devices such PC or any devices that use rs232.Here is a collection of rs232 transceiver circuits that popular for today. 2 transistor The circit below use 2 transistor and some components to provide RS232 transceiver.It usefull for cheap application that dose not [...]