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50A High Current Sensor IC ACS758: Circuit Diagram

Last Updated on June 12, 2025 by Swagatam Leave a Comment

So in this post we will try to understand everything about ACS758 current sensor, how this works, how we can use it, what is the technical specs, what is inside this IC and how to use in real circuits etc. This ACS758 is actually made by Allegro Microsystems and this is a very strong and […]

Filed Under: Voltage Control and Protection, Sensors and Detectors Tagged With: 50A, ACS758, Current, High, Sensor

Flashlight Circuit with Long Backup and High Efficiency

Last Updated on July 24, 2024 by Swagatam 2 Comments

There are two main advantages of this highly efficient flashlight circuit with long backup. Firstly, it uses only a single 1.5V AAA cell and illuminates a 3.3V LED. Secondly, the 1.5V cell is consumed by the LED until there’s virtually no charge left in it. Due to these features, this flashlight is able to last […]

Filed Under: Lamps and Lights Tagged With: Backup, Efficiency, Flashlight, High, Long

High Efficiency Li-Ion LED Driver Circuits Explained

Last Updated on October 10, 2023 by Swagatam Leave a Comment

LT1932 Block Diagram

In this post I have explained a high efficiency 1.5 V to 4.2 V LED driver circuits which can be used with a standard Li-Ion battery for enhanced illumination, extended battery backup and long battery life. Main Features Using IC LT1932 The IC LT1932 is a fixed frequency step-up DC/DC converter intended to function as […]

Filed Under: Lamps and Lights Tagged With: Circuits, Driver, Efficiency, Explained, High, LED

High Voltage Constant Current Source Circuit

Last Updated on March 22, 2024 by Swagatam 6 Comments

high voltage constant current source circuit

The presented circuit offers an adjustable constant current source capable of reaching up to 60mA, operating at voltages as high as 350V. Circuit Description The input stage, consisting of resistor R1 and zener diode ZD1, delivers 8V to the regulator (a 7805), maintaining this voltage relative to its reference line. This voltage level ensures sufficient […]

Filed Under: Power Supply Circuits Tagged With: Constant, Current, High, Source, Voltage

High Voltage DC Motor Speed Regulator Circuit

Last Updated on June 3, 2023 by Swagatam 15 Comments

high voltage motor controller

In the realm of motor control systems, high voltage DC motors play a crucial role in numerous industrial and automotive applications. Efficiently controlling the speed of these motors while ensuring operator safety and isolating sensitive components can be a challenging task. However, with the advent of advanced technologies, such as optocoupler motor controller power stages, […]

Filed Under: Motor Controller Tagged With: DC, High, Motor, Regulator, Speed, Voltage

High Efficiency Solar Charger Circuits using Switching Regulators

Last Updated on November 30, 2023 by Swagatam 7 Comments

solar battery charger using 7805 switching regulator

Solar power or electricity from sun light is so abundant that we can afford to waste it or dissipate it in the form heat. This means that we can use large, high power solar panels to charge batteries with lower power without bothering about how much solar energy is being wasted and how much the […]

Filed Under: Solar Controller Circuits Tagged With: Charger, Circuits, Efficiency, High, Solar, Switching

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