The post explains a simple high power subwoofer amplifier circuit which could be used for driving high bass subwoofer speakers and home theater systems. A Subwoofer is actually a loudspeaker […]
220V to 12V SMPS Transformerless Power Supply Circuit
This post is a research layout report for the 1.44 W non-isolated buck converter by using LinkSwitch™-TN2 LNK3204D/P/G, which can be effectively implemented as a 220V to 12V 100mA SMPS […]
Transmitter Circuit with Etched Coil on PCB
This specific transmitter circuit which has etched coil on PCB communicates sound employing tiny sensitive microphone. Transmitter’s frequency, as constructed is tunable through 15pF trimmer to the preferred frequency, and […]
12V 200 watt Inverter Circuit
This post explains how to build a simple 12V 200 watt inverter circuit capable pf producing 220V or 120V outpur depending on the transformer used. The figure above shows the […]
Simple PIR Water Sprinkler Circuit
The automatic PIR motion sensor switch circuit will be able to quickly switch on a water sprinkler although it is possible to utilize it as a motion sensor light switch […]
3V to 110/220V Converter Circuit
The proposed 3V to 110V 0r 220V circuit listed below is actually a DC to DC converter having a ordinary 3-0-3V VAC center tapped power transformer rigged in a blocking-oscillator […]