High-brightness single LED driver reference design for 1 to 2 AA battery applications

This reference design uses the boost converter TPS61021A to provide a high-efficiency LED driver circuit with dimming capabilities. The PWM dimming method can be used for one or two AA battery input applications, while the analog dimming method can be used for one AA battery input application. The PMP15037 enables dimming functionality by adding multiple resistors and a MOSFET to the circuit, making it a cost-effective and efficient solution for LED driver applications.

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MAXREFDES1213: Smart electronic load using the MAX32630FTHR and MAX11311

The MAXREFDES1213 is a reference design showcasing the MAX32630FTHR and MAX11311, as well as several other Maxim products, that demonstrates a small size, low-cost, portable electronic load (E-load) for testing power converters and PMICs.

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S32K358 Battery Management Unit (BMU) for High Voltage Battery Management System (HVBMS) Reference Design Board

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RS485 bus realizes power supply transmission scheme

Design features: Bus power evaluation, quick and easy testing of different bus power filters, configurable module application for master or slave, DC blocking bus capacitors, onboard receiver/transmitter enable/disable pull-up/pull-down resistors

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MAXREFDES143#: Application of DeepCover embedded security in the field of IOT security certification detection and notification

MAXREFDES143# subsystem reference design secures industrial IoT systems using a DS2465 SHA-256 Coprocessor and DS28E15 SHA-256 authenticator with 1-Wire.

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The most powerful T12 integrated portable soldering iron with gyroscope and buzzer, PD power supply

Built-in gyroscope, buzzer, supports multiple fast charging protocols, 128x64 OLED screen, standard T12 fixed bayonet. Regarding the problem of grounding the soldering iron, you can use the PD power supply of Mac and prepare a triangle extension cable to solve the problem perfectly. Or using a power bank directly is not a big problem.

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EEWorld netizens share experiences in national competitions

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CN0219

^{Adopt ADAV801/ADAV803 audio codec to implement S/PDIF and I 2} S interface with SigmaDSP codec

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Explore M3: Arduino based on ARM Cortex M3 (source code, etc.)

Explore M3 is a feature-rich ARM Cortex M3 development board. It helps you prototype ideas and take them beyond faster with Arduino through bare-metal programming, RTOS support, and low-power modes (if needed). All source code and hardware design files are open source, including the onboard bootloader. This makes it easy to use the board/chip in your custom design.

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MTRCKTSBN5643L: Powered by NXP3-Phase Sensorless BLDC Development Kit for MPC5643L Microcontroller

MTRCKTSBN5643L: Single 3-phase Sensorless BLDC Development Kit with Qorivva MPC5643L MCU.

Esai source code pure electric vehicle motor drive and vehicle control system based on DSP and bidirectional Z-source inverter

This project applies the bidirectional Z-source inverter to the motor drive system of pure electric vehicles. Using TMS320F2808 DSP as the control core, the SVPWM control technology based on the Z-source inverter is implemented.

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TIDA-00333: Dual isolation, half-duplex RS485 repeater reference design, with built-in transceiver control

Suitable for long distance RS-485 networks. The design provides transient protection from the effects of ESD, EFT and surge transients as specified in the IEC 61000 transient immunity standard.

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Tool changing manipulator design

The manipulator is the main tool for exchanging tools in the automatic tool changer. It is responsible for sending the tools from the tool magazine to the spindle, and then returning the used tools from the spindle to the tool magazine. The design idea is to use the movement of the manipulator to change the tool of the machining center. The rotation of the manipulator is realized by a rotary pneumatic cylinder or a rotary pneumatic cylinder, and its power is realized by the drive system. The automatic tool changer of a machining center is usually composed of a tool magazine and a manipulator. It is a symbol of the machining center and a key link to the success or failure of the machining center. Therefore, all machining center manufacturers are working hard to develop automatic tool changers with fast action and high reliability in order to achieve good results in the fierce competition. Automatic tool changers are the core content of machining centers, and each manufacturer is keeping it secret. Very little relevant information is disclosed, especially the robot part. The knife extraction and knife insertion actions of the manipulator are mostly completed by the pneumatic cylinder or the action of the pneumatic cylinder. The entire manipulator is composed of a mechanical arm telescopic mechanism, a mechanical claw opening and closing mechanism, a rotary mechanism and a linear motion mechanism for loading and unloading tools.

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YOLO3D: Project source code for 3D object detection based on yolo in autonomous driving applications

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Laser projector project made by teacher ChaN

ElectronBot: A movable computer accessory, a cute and tough desktop robot (newly produced by Zhihui Jun)

The project is a small desktop-level robot tool that can be used to help you control your computer, etc. Its functions can be defined by you. The inspiration for the appearance design is EVE in WALL-E~ The robot has a USB communication display screen function, has 6 degrees of freedom (one roll and pitch for the hand, one for the neck, and one for the waist), and uses its own modified special servo to support the joints Angle return.

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An engineer in the autonomous driving industry has opened up a fully functional laser SLAM

A versatile LiDAR SLAM package. Supports various types of LiDAR sensors (mechanical, solid-state, etc.), 6-axis and 9-axis IMU, loose coupling and tight coupling, mapping and positioning, loop detection, etc.

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MAXREFDES1185: 3.5W, 24V offline flyback converter using MAX17595

The MAX17595 is a peak-current-mode controller for designing wide input-voltage flyback regulators.

Non-inductive square wave drive application solution based on MM32SPIN motor/power supply chip - small and medium power water pump

This article briefly introduces the application example of sensorless square wave drive in "small water pump" based on MM32SPIN05TW.

CN0108

Implement electronic scale design using the 20-bit Σ-Δ ADC AD7781 with built-in PGA

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