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Newly Updated Circuit Projects:

Self Adjusting Automobile Headlamp Circuit

Last Updated on May 16, 2026 by Swagatam 6 Comments

auto adjusting vehicle headlamp dipper circuit compressed

A suddenly dimming and brightening automobile headlamp is usually quite undesirable, since it causes a painful interference with the normal vision of the opposite side driver or the passengers. In this post we try to design a gradually self-adjusting automobile headlamp brightness circuit, which enables the brightness of the vehicle headlamp to vary proportionately in […]

Filed Under: Automobile Electronics Tagged With: Adjusting, Automobile, Headlamp, Self

Wheatstone Bridge Circuits Explained with Calculations

Last Updated on June 8, 2026 by Swagatam 11 Comments

Table3

A Wheatstone Bridge circuit is commonly used to measure resistance, inductance, capacitance, and impedance. These are made up of four parts or arms that are joined in series in a diamond like bridge configuration. These four arms carry the individual components such as resistor, inductor or capacitor connected across the fur junctions. An alternating current (AC) or […]

Filed Under: Meters and Testers Tagged With: Bridge, Calculations, Circuits, Explained, Wheatstone

Simple Triac Triggering Circuits Explained

Last Updated on May 20, 2026 by Swagatam 129 Comments

triac as switch in AC mains

In this post I have explained the fundamental methods of triggering a triac, and also discuss the right way to connect the terminals of a triac. Triacs are solid-state bidirectional thyristors that can switch across both the AC half cycles on a 120-volt or 240-volt Ac power system. A triac could be activated (switched on and […]

Filed Under: Electronics Theory Tagged With: Circuits, Explained, Simple, Triac, Triggering

10 Useful Active Filter Circuit Diagrams Explored

Last Updated on May 15, 2026 by Swagatam 15 Comments

Figure1

In this post I will comprehensively discuss 10 different types of active filter circuits which can be used for filtering music and audio with the desired levels of bass and treble effects. We also learn about their working, types, characteristics, and practical applications circuits. Contributed By: Ken Madison In audio signal processing circuits, filters are used […]

Filed Under: Audio and Amplifier Projects Tagged With: Active, Diagrams, Explored, Filter, Useful

How to Calculate Heatsinks

Last Updated on January 23, 2024 by Swagatam 4 Comments

heatsink image

Heatsinking is critical for power devices in circuits that are intended to maximize their performance. When heat from the power devices cannot be moved away very quickly, the power devices and its operating elements could be damaged. You may calculate how hot your semiconductors could become while operating, using a couple of easy formulas. Using formulas gets rid of guesswork and […]

Filed Under: Temperature Controllers Tagged With: Calculate, Heatsinks

Simple IC Tester Circuit [Test Digital and Analogue ICs]

Last Updated on June 8, 2026 by Swagatam 3 Comments

Cable with banana pins and micro alligator clips

The IC Tester is simple to use. You don’t have any  switches to configure or lengthy test processes to complete. The universal IC Tester is a static tester, which means this does not dynamically test the IC’s operation. All ICs with up to 20 pins can be tested by this unit. ICs  with more than […]

Filed Under: Meters and Testers Tagged With: Analogue, Digital, Simple, Test, Tester

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