CN0304

Low Power DDS Waveform Generator

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700 W - 48 V Demonstration Board using 2x STAC2942B for FM Broadcast Application (VHF Amplifier 87.5 - 108 MHz)

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BATT-14EMULATOR: 14-cell battery pack to power MC33771 EVB

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PNEV512B: PN512 card reader circuit board

PN512 card reader circuit board

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5V-360mA buck converter based on VIPer222XSTR

5 V - 360 mA buck converter based on VIPer222XSTR

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Compost fermentation control based on GD32E231

The temperature is used as the controlled variable in the fermentation process, the ventilation air supply volume is used as the manipulated variable to regulate oxygen, the GD32E231 microcontroller is used as the main control unit, and the output relay controls the fan to regulate oxygen. , through the design of hardware circuits and related application programs, the four processes of fermentation are adjusted to achieve the effects of accelerating compost maturity and improving fertilizer efficiency.

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STSPIN840 based dual brush DC motor driver expansion board for STM32 Nucleo

Dual brush DC motor driver expansion board for STM32 Nucleo, based on STSPIN840

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MAXREFDES61#: 16-bit, four-channel analog input micro PLC card

The MAXREFDES61# reference design ushers in the era of Industry 4.0. With a complete analog front-end for the next generation of ultra-small programmable logic controllers, this design meets the higher resolution and higher voltage needs of industrial control and industrial automation applications, while consuming minimal power and space. This high-performance system features four channels of analog input, a complete, efficient power-supply system and on-board processing. Hardware and firmware design files as well as FFTs and histograms from lab measurements are provided.

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Control stage based on STM32F100CB microcontroller for motor control via serial communication user interface

Control stage based on STM32F100CB microcontroller for motor control with serial communication user interface

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2018 Electronic Competition Question A-Current Signal Detection Device (Hangzhou University of Electronic Science and Technology)

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CN0185

New Analog/Analog Isolator Using Isolated Σ-Δ Modulator, Isolated DC/DC Converter and Active Filter

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STM32 Nucleo low voltage brushed DC motor driver expansion board based on STSPIN250

Low voltage brushed DC motor driver expansion board for STM32 Nucleo, based on STSPIN250

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80 W offline PFC and LED driver demonstration board with dimming based on L6562A

80 W offline PFC and LED driver demonstration board based on L6562A with dimming capability

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Low Voltage Full Bridge Reference Design Board for High Voltage Gate Driver L6393

Low-voltage full-bridge reference design board features L6393 advanced high-voltage gate driver

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Sound terminal based on STA333IS 2.0 channel high-efficiency digital audio system

Sound Terminal 2.0-channel high-efficiency digital audio system based on STA333IS

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2021 Electronic Competition Question A (Signal Distortion Measurement Device) Provincial First Prize Code

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Engineer safety black box

As China's title of "Infrastructure Maniac" becomes widely known, more and more workers are engaged in dangerous jobs, such as high altitude, underground, tunnels, and engineering vehicles. In order to ensure the safety of these construction workers and ensure timely rescue in the event of an accident, I designed this safety black box for engineering personnel. This equipment can collect the heart rate of construction workers, the temperature and humidity of the surrounding environment, identify the state of movement, and determine whether a fall or collision accident has occurred. It is transmitted to the remote monitoring center through the network. Once the monitoring personnel find an abnormality, they can immediately organize rescue.

FRDM-KL46Z: Freedom development platform for Kinetis ^® KL3x and KL4x MCUs

FRDM-KL46Z is an ultra-low-cost development platform using Kinetis L series KL4x MCU based on Arm Cortex-M0+ processor.

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8-channel high-end driver reference board with VN808CM

8-channel high-side driver reference board with VN808CM

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Active Bridge Rectifier Controller Demonstration Board

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