RDR-839 - 12W power supply for home appliances using TinySwitch-4

Schematic PCB

TEA1721ADB1061: TEA1721 Isolated Universal Mains Flyback Converter Demo Board

OM40007: LPC54018 IoT module for LPC540xx series MCUs

The LPC54018 IoT module is a high-performance, self-sufficient microcontroller module that supports IEEE802.11 and is suitable for products based on the LPC540xx MCU series.

Schematic PCB

2018 Electronic Competition Question D-Gesture Recognition Device (Anhui University)

Schematic PCB

Using negative voltage charge pumps and analog switches to build DirectDrive video filter amplifiers in audio/video applications

The MAX9503/MAX9505 DirectDrive™ video filter amplifiers integrate an analog switch (MAX9505 only) and a negative charge pump that can be used to improve performance for audio/video applications.

STM32 based NAND flash drive demonstration board (with TFT MB785/P)

STM32-based NAND Flash driver demonstration board (with TFT MB785/P)

Schematic PCB

Verification and implementation of I²C bus

This application note briefly reviews the history of the I2C bus. It then presents I2C configurations proven to ensure easy communication between the master and slaves on the bus. Examples include schematics and code. Appendix 1 contains helpful definitions of terms used in this article.

KITMPVZ5004EVK: Pressure Sensor Water Level Evaluation Board

OM13085: LPCXpresso board for LPC1769 with CMSIS DAP hardware debugger

LPCXpresso board for LPC1769 with CMSIS DAP hardware debugger

Schematic PCB

Support high-gain applications using rejustors and precision instrumentation amplifiers

This article shows how to use a zero-drift, precision, instrumentation amplifier with a pair of rejustors (passive electrically-adjustable resistors) and gain-setting resistors to ensure high accuracy. The MAX4208 precision instrumentation amplifier serves as the example device. Experiments are described and test results presented.

Smart Temperature Transmitter Reference Design

The smart temperature transmitter evaluation kit has the characteristics of high accuracy, signal isolation, LCD display, support for HART protocol, loop power supply, interface protection, etc. This platform is mainly based on ADI's multi-channel ADC with self-checking function and EPSON's Ultra-low power consumption 16-bit MCU implementation. The main IC of this design uses ADC7124-4, which integrates a 24-bit Σ-ΔADC, buffer and PGA (programmable gain amplifier). The transmitter can convert the temperature (standard thermal resistance or thermocouple) signal into a 4-20mA signal, which is output by the power supply loop.

Schematic PCB

u-blox Wi-Fi^® Evaluation Kits: EVK-LILY-W131 & EVK-LILY-W132

WCT-15W1COILTX: 15 W single coil wireless charging transmitter reference design

WCT-15W1COILTX is an NXP15 W single coil wireless charging transmitter reference platform for the MWCT1012CFM transmitter controller IC.

Teacher ChaN’s headphone amplifier design

Teacher ChaN’s headphone amplifier design

Schematic PCB

OM13099: CAN-FD dual transceiver Shield expansion board

OM13099 CAN-FD Shield expansion board for LPCXpresso54628 and LPCXpresso54608 evaluation boards

Hipoink: Small open source e-paper display updated and wirelessly powered via NFC (schematic and source code)

HiPo is a 3.52-inch e-paper display module the size of a business card. Content is uploaded via NFC via a convenient app, no batteries required. The development board can compile different display functions by editing the code.

Schematic PCB

i.MX31PDK: i.MX31 Product Development Kit

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Multifunctional open source custom macro keyboard based on esp32s3

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LED driver with phase-cut dimming, 40 W

QR code recognition source code based on STM32 + QR code decoding library lib

QR code recognition source code based on STM32 + QR code decoding library lib

Schematic PCB