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New Circuit Projects

Home EMF Radiation Protector Neutralizer Circuit

Last Updated on October 25, 2024 by Swagatam 41 Comments

EMFradiationneutrilizercircuit

The post investigates a circuit which can be used for negating or neutralizing the everlasting harmful low frequency EMFs created from our mains power line in our homes. The idea was requested by one of the interested readers of this blog. Technical Specifications I’m trying to find a device or plans to build a device […]

Filed Under: Home Electrical Circuits Tagged With: EMF, Home, Neutralizer, Protector, Radiation

IC 4033 Pinouts, Datasheet, Application

Last Updated on February 28, 2023 by Swagatam 4 Comments

IC4043pinoutdatasheet

In this article I have explained the main features, specifications and datasheet of the IC 4033 through a detailed technical analysis. Electrical Characteristics How IC 4033 Works The IC 4033 is another Johnson decade counter/decoder IC specifically designed for working with 7 segment displays. Basically it’s a clock or pulse counter IC which responds to […]

Filed Under: Datasheets and Components Tagged With: 4033, Application, Datasheet, Pinouts

Understanding IC 4043B, IC 4044B CMOS Quad 3-State R/S Latch – Working and Pinouts

Last Updated on January 9, 2024 by Swagatam 14 Comments

IC 4043 dtasheet pinout

In this post I have explained the pinout function and other important specifications of the IC 4043. I have explained about the complete datasheet of this very interesting chip. Pinout Datasheet of IC 4043 Technically the IC 4043 is a quad set/reset (R/S) latch with 3 logic state output. To be more precise this chip […]

Filed Under: Datasheets and Components Tagged With: 4043B, 4044B, CMOS, QUAD, State, Understanding

Week Day Programmable Timer Circuit

Last Updated on December 24, 2023 by Swagatam 72 Comments

weekdaytimercircuit

In this post I have explained a couple of interesting timer circuits customized as per individual requirements. The first one is a kind of week/day programmable timer circuit for actuating a motor for a predetermined time only during certain selected days of the week, while the second timer circuit is for alerting a lecturer regarding the finish of the allotted time […]

Filed Under: Timer and Delay Relay Tagged With: Programmable, Timer, Week

2 Simple Automatic Transfer Switch (ATS) Circuits

Last Updated on January 19, 2025 by Swagatam 105 Comments

automatictransferswitchcircuit

In this article we investigate an ATS circuit for initiating an automatic changeover from mains supply to generator supply through many intermediate transfer stages which involves activating the fuel valve, choke valve and the generator starter. The circuit was requested by Mr. Hari, and another dedicated reader from this blog. Requirement for 5kva LPG Generator […]

Filed Under: Grid and 3-Phase Tagged With: ATS, Automatic, Circuits, Simple, Switch, Transfer

Make a Simple Class D Amplifier Circuit

Last Updated on December 21, 2023 by Swagatam 47 Comments

class D amplifier circuit

In this article I have explained two simple class-D amplifier projects which can be built at home with extremely high efficiency results. A Class D amplifier is also known as switching amplifier. This technology uses pulse width modulation or PWM for digitally amplifying small analogue music signals into high power, high efficiency audio signals. Why […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Class, Simple

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