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Newly Updated Circuit Projects:

8X Overunity from Joule Thief – Proven Design

Last Updated on January 2, 2024 by Swagatam 63 Comments

In this post I have explained about a unique 8x overunity circuit quite resembling a joule thief design which was created by one of the noted researcher Professor Steven E. Jones while experimenting with a simple overunity concept. 8x more Output from a Simple Joule Thief Circuit While developing this overunity circuit he was amazed […]

Filed Under: Energy from Magnets Tagged With: Design, Joule, Overunity, Proven, Thief

3 Smart Laser Alarm Protection Circuits

Last Updated on January 2, 2024 by Swagatam 144 Comments

alarm

In this post I have explained the making of 3 simple yet effective smart laser alarm protection circuit using the IC 555, for securing a specified restricted zone from human interventions. The idea was requested by Mr. Collins. Circuit Objectives and Requirements 1) The Design Parts List IC 555Pinouts Circuit Operation The proposed smart yet […]

Filed Under: Security and Alarm Tagged With: Alarm, Circuits, Laser, Protection, Smart

Car Tank Water Sensor Circuit

Last Updated on January 2, 2024 by Swagatam 36 Comments

car2Btank

In this article I have explained a simple car tank water sensor alarm circuit using IC 555 and a pulsating signal on the sensing probes to pevent corrosion on the probes. The idea was requested by Mr. Peter. Circuit Objectives and Requirements I couldn’t find how to post a project proposal on your website. May […]

Filed Under: Automobile Electronics, Water Controller Tagged With: Sensor, Tank, Water

4 Simple Proximity Sensor Circuits – Using IC LM358, IC LM567, IC 555

Last Updated on January 2, 2024 by Swagatam 95 Comments

IMG 20171004 170951

Video Demonstration An IR proximity sensor is a device which detects the presence of an object or a human when it is within a predetermined range from the sensor, through reflected infrared beams. Three useful proximity sensor concepts are explained here, the first concept is based on an ordinary opamp LM358, the second one using […]

Filed Under: Sensors and Detectors Tagged With: Circuits, LM358, LM567, Proximity, Sensor, Simple

Simple Transistor Diode Tester Meter Circuit

Last Updated on January 2, 2024 by Swagatam 4 Comments

transistor

In this post I have explained how to make a simple yet efficient transistor/diode tester circuit, that will not only test the quality of a BJT, but will also help to identify whether it is is an NPN or a PNP. The circuit was designed and contributed by Mr. Henry Bowman. Circuit Operation Referring to […]

Filed Under: Meters and Testers Tagged With: Diode, Meter, Simple, Tester, Transistor

Simple MOSFET Tester and Sorter Circuit

Last Updated on January 2, 2024 by Swagatam 18 Comments

MOSFET TESTER

This simple MOSFET tester does a quick job of testing both enhanced mode type N and P-channel mosfets. It checks for shorts between gate, drain and source. Designed By: Henry Bowman It also distinguishes between N and P-channel mosfets. Once the connections are correctly made to the mosfet, all testing is done without reversing connections. […]

Filed Under: Meters and Testers Tagged With: MOSFET, Simple, Sorter, Tester

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