DER-484 - 300 W forward power supply

Schematic PCB

RDR-239 - 150 W LLC High Voltage DC-DC Resonant Converter

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DER-850 - 240 W LLC CV/CC Battery Charger Power Supply Using HiperLCS and LinkSwitch-TN

Schematic PCB

DER-931 - 72 W industrial/home appliance power supply using InnoSwitch4-CZ, ClampZero and MinE-CAP

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DER-966 - 140 W USB PD 3.1 extended power range charger using PowiGaN based InnoSwitch4-CZ, ClampZero and HiperPFS-5

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DER-943 - 60 W general purpose/laptop power supply using InnoSwitch4-CZ and ClampZero

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DER-930 - 180 W High Power Density Battery Charger for Power Tools and E-Bikes using PowiGaN based InnoSwitch4-CZ, ClampZero and HiperPFS-5

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RDR-961 - 60 W power supply with InnoSwitch4-Pro PowiGaN, ClampZero and Microchip microcontrollers with ZVS and 5-20 V programmable output

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DER-453 - 45 W single output secondary-side regulated converter

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DER-581 - 45 W flyback converter with lossless zero-crossing circuit

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Single-button keyboard based on ESP32-S3 with color screen

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

Schematic PCB

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

Schematic PCB

2018 Electronic Competition Question D-Gesture Recognition Device (First Prize in Hebei Province)

Schematic PCB

2018 Electronic Competition Question D-Gesture Recognition Device (Guangxi Guilin University of Electronic Science and Technology)

Schematic PCB

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

Schematic PCB

2019 E-Contest Question K-Simple Multifunctional Liquid Container (Chongqing Division)

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Jiabao based on eps32c3

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Intimate Photo Frame - Network weather digital photo frame based on STM32H745

Schematic PCB

Intelligent desktop interactive robot based on eps32s3

This design is an intelligent desktop interactive robot. As the name suggests, it is an intelligent robot that can interact with people. A 2.4-inch LCD screen is used as an important channel for human-computer information interaction. It also has voice recognition and sound playback functions, making contactless interaction more convenient. The interface design adopts the open source LVGL 8 GUI framework and uses ESP32S3 as the main control chip. The current regional temperature can be displayed on the interface, and the sound can be broadcast through voice interaction. It also displays the dynamics of the EEWORLD forum, including the display of the daily number of posts and the total number of posts. Through voice interaction, the voice broadcast of the total number of posts can also be obtained. . And the onboard LED lights can be controlled by voice.

Schematic PCB