FreeScale: 350-470 MHz UHF Professional Mobile Radio Power Amplifier Reference Design

The AFT09MS007N is designed for two-way radio applications with frequencies between 136 and 941 MHz. These devices feature high gain, ruggedness, and wideband performance for large signal, common source amplifier applications in mobile radios. This document focuses on wideband UHF power amplifier applications for professional two-way mobile radios.

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Renesas R7F0C807 Wireless Charging Transmitter Control Reference Design

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High-efficiency and low-cost 400W power supply design based on ADP1051

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HOLTEK: Developing a Qi wireless charging transmitter based on the HT66FW2230

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A single-phase step-down converter provides an output voltage from 0.8V to 1.4V for load currents up to 20A

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Synchronous Rectification Controller 12.5 W (5 V / 2.5 A) Power Supply

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LLC Resonant, 250 W, 400 V to 12.5 V Converter, Evaluation Board

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5V/12V Synchronous Step-Down PWM DC/DC and Linear Power Controller

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A fully integrated high frequency synchronous rectified step-down switch-mode converter with 2-bit VID designed for V1.0A, VCCIO, PRIMCORE, EDRAM and EOPIO for IMVP8 applications

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A single-room home automation solution powered by a Raspberry Pi

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[Open Source Information] ART-PI Intelligent Distribution Box Circuit Reference Circuit

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Twonkie: Open Source USB-PD Sniff, a USB-PD sniffer based on Google Twinkie

Supports data monitoring and PD packet injection on CC1 and CC2 lines, and voltage and current detection on VBUS and VCONN.

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Open source lab-grade automated microscope

Wee Noise Makers PGB-1: Open Source Audio Synthesizer

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High-Efficiency 65W USB-C Dual-Port Charger Reference Design with ATQ Transformer

100W USB-C dual-port charger reference design with single-stage PFC

170 W AC-DC reference design with input voltage range for e-bike and power tool battery chargers

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Green Smart BMS: Intelligent Battery Management System

The project originated when the author purchased an electric motorcycle for his daughter and replaced its original lead-acid gel battery with a lithium battery pack. Due to the lack of smart, cheap and easy to configure lithium battery management systems on the market, the author decided to make one himself.

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RP2040 based ohmmeter with audio and ribbon feedback

A low-profile version of full-featured software radio based on Raspberry Pi Pico (fully open source + detailed explanation)

With just a Raspberry Pi Pico, an analog switch and an op amp, you can build a powerful SDR receiver covering the LW, MW and SW bands. Capable of receiving signals from halfway around the world.

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