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DC-DC Boost Module (0.9V~5V) to 5V 600mA USB Step-up Board

Last Updated on May 9, 2025 by Swagatam Leave a Comment

So this is a DC-DC boost converter that takes a low voltage (0.9V to 5V) and steps it up to a stable 5V. We use this when we have a small battery, but we need 5V output, like for USB devices. It is super useful for battery-powered projects and small electronics. Main Features How It […]

Filed Under: Power Supply Circuits Tagged With: 600mA, Boost, DC, Module, Step, USB

USB 5V To 24V DC to DC Boost Power Regulator Module

Last Updated on May 9, 2025 by Swagatam Leave a Comment

This is a USB 5V to 24V Adjustable Boost Converter Module and it helps us step up a lower voltage into a higher voltage which we can adjust as needed. Now let us go through everything in detail step by step. Inputs – Where We Give Power Now we got three ways to power this […]

Filed Under: Voltage Control and Protection Tagged With: 24v, Boost, DC, Power, Regulator, USB

USB 5V Audio Amplifier for PC Speakers

Last Updated on September 16, 2024 by Swagatam 28 Comments

LM4871

Audio amplifiers which are designed to work with a 5 V supply from a USB socket such as from a computer USB are called an USB amplifiers. In this article I have explained how to build a simple 3 watt amplifier circuit which can be powered directly from a computer 5V USB port for driving […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Audio, PC, Speakers, USB

LiFi Internet Transmitter Circuit – USB Signal Transfer through LED

Last Updated on July 27, 2020 by Swagatam 65 Comments

feaafaf10bf86605998d68782fbfc074

In this post I have explained how to transmit Internet data through LiFi using a class D amplifier as the transmitter and an ordinary audio amplifier circuit as the receiver. How Li-Fi Concept Works If you are wondering how a LiFi concept could be used for transmitting USB data, this article will provide with all […]

Filed Under: Transmitter Circuits Tagged With: Internet, LiFi, Signal, Transfer, Transmitter, USB

USB Isolator Diagram and Working

Last Updated on April 9, 2019 by Swagatam 13 Comments

usb2Bisolator

The following email discussions were sent to me by Mr John Sweden who is one of the avid readers of this blog, here he explains about an USB isolator device, and how it may be incorporated while using an oscilloscope with a PC, in order to safeguard the oscilloscope and the test circuit from accidental […]

Filed Under: Electronics Theory Tagged With: Isolator, USB, Working

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