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Newly Updated Circuit Projects:

How to Calculate Transformerless Power Supply Circuits

Last Updated on March 9, 2025 by Swagatam 97 Comments

In this article I have explained how to calculate resistor and capacitor values in transformerless power supply circuits using simple formulas like ohms law. Analyzing a Capactive Power Supply Before I have explained the formula for calculating and optimizing resistor and capacitor values in a transformerless power supply, it would be important to first summarize […]

Filed Under: Power Supply Circuits Tagged With: Calculate, Circuits, Power, Supply, Transformerless

Designing a Power Factor Correction (PFC) Circuit Using UC3854 – Key Considerations

Last Updated on March 8, 2025 by Swagatam Leave a Comment

The IC UC3854, what it does is, it helps in active power factor correction, right? Now normally, if we don’t correct the power factor, then power system will pull current from the AC mains in a way that’s not a nice sine wave but rather distorted. This IC takes care of all the control stuff […]

Filed Under: Voltage Control and Protection Tagged With: Correction, Designing, Factor, PFC, Power, UC3854

Automatic Curtain Open-Close Circuit

Last Updated on February 28, 2025 by Swagatam Leave a Comment

We are happy to share an automatic curtain control circuit kindly provided by Mr. August Peterson. This design helps to open and close curtains by sensing light from the surroundings. It uses an LM393 comparator, a solar panel as a light sensor and a 24V motor. The circuit makes the curtain open in the morning […]

Filed Under: Motor Controller Tagged With: Automatic, Close, Curtain, Open

Car Reverse Horn Circuit

Last Updated on February 26, 2025 by Swagatam 2 Comments

reverse horn PCB track

A crucial safety element in cars is the reverse horn, sometimes referred to as the reverse warning device or backup alarm, which emits an auditory signal while the automobile is in reverse. The reverse horn, which is intended to improve pedestrian and occupant safety, generates a unique sound to alert others around that the vehicle […]

Filed Under: Automobile Electronics Tagged With: Horn, Reverse

4 Solid-State Car Alternator Regulator Circuits Explored

Last Updated on February 26, 2025 by Swagatam 85 Comments

car voltage regulator circuit

The 4 simple car voltage current regulator circuits I have explained below is created as a immediate alternative to any standard regulator and, although developed principally for a dynamo it will function equally effectively with an alternator. If the functioning of a traditional car alternator voltage regulator is analyzed, we find it amazing that these […]

Filed Under: Automobile Electronics Tagged With: Alternator, Circuits, Explored, Regulator, Solid, State

XL3608 5V, 9V,12V DC, 2 Amp Boost Converter module

Last Updated on February 26, 2025 by Swagatam Leave a Comment

This XL3608 2A mini DC to DC Boost Converter module is super compact and efficient and it is just perfect for powering all sorts of devices and systems. Let’s learn about its main features in greater details: Main Features: Input Voltage Range: We can feed this module with an input voltage ranging from DC 2.5-11.5V. […]

Filed Under: Power Supply Circuits Tagged With: 12V, Boost, Converter, DC, Module, XL3608

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