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Newly Updated Circuit Projects:

Battery Low Voltage Alarm Circuit

Last Updated on January 3, 2024 by Swagatam 4 Comments

table 1

Despite its simplicity, the Battery Low Voltage Alarm circuit has a very important function. It forewarns you of approaching battery failure so that you may run to the store and get replacement cells before your equipment stops functioning entirely. Because of its compact size and low current need, it may be integrated into the devices […]

Filed Under: Security and Alarm Tagged With: Alarm, Battery, Voltage

How to Connect LM338 IC in Parallel to Increase Output Current

Last Updated on July 26, 2023 by Swagatam 24 Comments

how to connect LM338 in parallel for increased current output

The LM338 is an adjustable 3-terminal positive voltage regulator capable of providing up to 5 amperes of output current. To increase the output current capability, you can connect multiple LM338 ICs in parallel. When you connect them in parallel, each IC will share the load current, allowing you to achieve higher total current handling capacity. […]

Filed Under: Power Supply Circuits Tagged With: Connect, Current, Increase, LM338, Output, Parallel

12 Amp Power Supply Circuit using Parallel LM317 ICs

Last Updated on January 18, 2025 by Swagatam 4 Comments

LM317 parallel 12 amp power supply circuit

This adjustable power supply is capable of delivering a maximum output of 12 A with an adjustable voltage from 4 V to 20 V through many LM317 ICs connected in parallel. It will allow testing of any device requiring a significant power supply, such as a direct current motor, a car amplifier, or even a […]

Filed Under: Power Supply Circuits Tagged With: LM317, Parallel, Power, Supply

LED Arrow Direction Indicator Circuit

Last Updated on June 8, 2026 by Swagatam Leave a Comment

LED direction indicator circuit

The arrow-shaped LED direction indicator circuit utilizing the 74LS164 based IC and a configuration of 14 LEDs arranged in the shape of an arrow is a captivating and visually appealing project designed to create an eye-catching display. This circuit is designed to illuminate the LEDs gradually, forming the shape of an arrow, and once the […]

Filed Under: Lamps and Lights Tagged With: Arrow, Direction, Indicator, LED

Vibration Sensor 801S Datasheet Explained

Last Updated on May 18, 2026 by Swagatam Leave a Comment

The 801S vibration sensor is a typical vibration detection and measurement module. The following are some of its main technical features, datasheet and characteristics: Datasheet in Details The 801S vibration sensor is very sensitive and can pick up even the smallest vibrations in its surroundings. Frequency Range: The module is made to detect vibrations that […]

Filed Under: Datasheets and Components Tagged With: 801S, Datasheet, Explained, Sensor, Vibration

Car Reverse Horn Circuit

Last Updated on May 16, 2026 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

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