The post explains a simple, single chip digital potentiometer circuit which can be controlled through a single pushbutton, a dual pushbutton (up/down) or even through external digital (CMOS/TTL) input triggers.
Feb 27, 2014
Here we study a very simple 120V/220V smps LED driver circuit which can be used for driving high watt LEDs rated anywhere between 1 watt to 12 watts directly from any domestic AC mains outlet.
Feb 24, 2014
A car LED downlight available in the market can be easily integrated to an existing car battery if its rating is identical to the battery's voltage rating. Let's learn more regarding one such request sent by Mr. Allwyn Siqueira.
The post discusses a simple infrared based proximity sensor circuit which is implemented to study birds and their behavior, by installing the circuit beside artificially made bird nests. The idea was requested by Mr. Jan Simberg.
Feb 22, 2014
The post explains the making of a simple, cheap yet effective cell phone sanitizer circuit using ultra violet rays. The idea was requested by Mr. Shah (kristin).
Feb 20, 2014
In the previous post we learned an SMPS design which can be used for driving a 50 watt LED lamp made from 50 numbers of 1 watt LEds. Here we try to understand the connection details of the LEDs with the driver circuit.
Feb 13, 2014
The post discusses a DTM based FM remote control circuit which can be used for controlling 4 individual appliances remotely by pressing four corresponding buttons on the DTMF transmitter handset. The idea was requested by Mr. Sunaabh Sarkar.