Circuit Lake

Electronic Project and Circuit Collection


Single Li-Ion / Li-Polymer Battery Charger

January 23, 2013 By: admin Category: Analog, Basic No Comments →

The MCP73837 and MCP73838 based charger is suitable for portable applications. It is fully integrated linear Li-Ion / Li-Polymer battery chargers with autonomous power source selection. It has small physical size and only need low number of external components to make it works. The MCP73837 support Power-Good Monitor while MCP73838 has Timer Enable feature.

XR-2206 Function Generator

February 16, 2012 By: admin Category: Basic, Digital, Miscellaneous No Comments →

If you want to build simple function generator then this circuit is for you. This function generator is built based on IC XR-2206. It can be used to generate Square, TTL, Sine and Triangle waveforms. The frequency range is from 1Hz to 1Mhz and adjustable via VR3. User can change output voltage using VR2.

IR Remote Switch for Home Appliance

October 13, 2011 By: admin Category: Basic, Control, Remote No Comments →

If you are looking for simple ON-OFF remote switch for your home appliance then this InfraRed remote control circuit is suit for it. This circuit allows you to turn on/off your home appliance (lamp, ran, radio, etc) using any type TV, VCD or DVD remote control with range up to 10 meters. The circuit is […]

Basic Touch Sensor Using AT90S2313

July 23, 2011 By: admin Category: AVR, Basic, Microcontroller, Project, Sensor No Comments →

This simple touch sensor project can be used to add a touch switch to your computer. It can detect when you touch a sensor connected to one of the sensor inputs. The project is built based on AVR AT90S2313 (you can replace it with ATtiny2313).