100W LED driver evaluation board using high-frequency LCC transformer to achieve low-cost and miniaturized design

This 100 W reference design highlights the excellent power quality and high frequency performance of the half-bridge (HB) driver using the ICL5102 with the economical CoolMOS™ P7 series. The design takes full advantage of the applicable frequency range of the HB driver to create Highly compact LCC transformer. This transformer integrates the series inductance of the LCC resonant tank. Relying on this high power density transformer design, the high frequency operation capability can drive system cost and size reduction.

Pixblasters Video LED Controller: Combine with LED strips to create a huge display that acts as a regular video monitor (PCB, schematic, demo source code)

Huge, shiny, beautiful video displays with thousands of LEDs have always been out of reach of enthusiasts and small business owners due to their high cost and complexity. Pixblasters MS1 changes all that.

Schematic PCB

200 W Game Console AC-DC Adapter GreenPoint® Reference Design

CN0276

High Performance, 10-Bit to 16-Bit Resolver-to-Digital Converter

Schematic PCB

60W USB Type C car charger reference design

The PMP20774 reference design is a universal USB Type-C charger utilizing the LM5175 DC/DC and TPS25740B PD controller for aftermarket automotive charger applications. This design operates with a minimum input voltage of 6V and a maximum input voltage of 40V. This design is capable of delivering 3A continuously at 5Vout, 9Vout, 15Vout and 20Vout. The switching frequency is set to 350kHz. The waveforms are collected when the input voltage is 12V and 24V.

Schematic PCB

Low voltage brushed motor system

This brushed motor system uses an MSP430 microcontroller, a DRV8837 brushed DC motor driver, and a 12V brushed motor. This system is suitable for applications requiring speeds up to 10,300 RPM under no load conditions. The system measures 19 x 33 mm without motor, making it ideal for applications requiring a small footprint. The motor power supply voltage supports 1.8V to 11V, and the maximum current is 1.8A. There are various configuration options for easily controlling the rotation of the motor, changing the direction of rotation, and placing the system into a low-power state to reduce energy consumption when not in use. The motor drive platform incorporates protection against short circuit, breakdown, undervoltage and overheating.

Schematic PCB

255 W, 80PLUS® Silver Certified ATX Power Supply GreenPoint® Reference Design

2-phase unipolar stepper motor driver IC——TB67S142NG

Schematic PCB

Wireless security camera based on ESP32

Have you ever wanted to install a security camera in your home, garden or office? Although commercial Wi-Fi security cameras on the market are not expensive, if you want to install multiple ones in different scenes or rooms, it will cost a lot of money. Young engineer Max can develop a wireless security camera based on Espressif's ESP32 chip with only $15.

Schematic PCB

Two-Phase Interleaved Power Factor Correction Converter with Power Consumption Metering

This design is a digitally controlled two-phase interleaved 700W power factor correction converter with added power metering capabilities. The power factor correction converter's two 180° phase-shifted boost power stages use a C2000™ Piccolo™ microcontroller, which also monitors line and neutral voltage waveforms for power metering functions. This design is able to achieve 97% efficiency and 1.5% THD (full load) with a power factor greater than 0.98. This design is an excellent choice for offline applications and AC/DC power supplies by minimizing power losses in the power stage, mitigating the reliability impact of harmonic distortion, and providing near-peak power factors.

Schematic PCB

60 W USB-PD and Quick Charge 3.0 Buck-Boost Reference Design Documentation Package

Electronic door guarding (knock detection, reminder)

The acceleration sensing unit (RSL10+KX023) attached to the back of the door is used to detect vibration and movement to detect events such as opening the door and knocking on the door. It also interacts with the terminal through information through BLE and can view the log on the handheld terminal. Handheld terminals are also implemented with RSL10. After powering on, it automatically scans the target device and connects to it. After connecting, it obtains the time and date information of the device (which can be modified at this time), and then enters the log interface. The wireless sensing unit and the BLE terminal exchange information through the BLE connection.

Schematic PCB

Application circuit of TLP7820 isolation amplifier (current detection)

Schematic PCB

High-performance MCU reference design for EV/HEV battery management systems

System example of an active cell balancing battery management system. The TMS570LS0432 microcontroller commands the EMB1402 EVM to monitor the battery cells and perform charge/discharge from one battery cell to an external 12V power supply. Users can view battery status and control battery balancing through a GUI running on the host PC.

Schematic PCB

IEEE 802.3bt PoE PD reference design with NCP1566-based isolated DC/DC converter

Portable low-power HD display reference design with higher brightness using DLP® technology

This display reference design uses the DLP Pico™ 0.3-inch TRP HD 720p display chipset and is implemented in the DLP LightCrafter™ Display 3010-G2 Evaluation Module (EVM). This reference design enables high resolution in projection display applications such as mobile smart TVs, virtual assistant mobile projectors, digital signage and more. This design includes the DLP3010 chipset, which consists of the DLP3010 720p digital micromirror device (DMD), DLPC3433 display controller, and DLPA3000 PMIC/LED driver.

Schematic PCB

Single-layer refrigerator fan reference design enabling efficient drive

This reference design is a singled-layered, cost-effective, small-form-factor, three-phase sinusoidal motor drive for sensored BLDC fan motors specified up to a maximum current of 1 A RMS at 18 V maximum. The unique, single-sided design helps to bring down the system cost. The on-board Hall sensors facilitate the board mounting inside the motor itself. The design also demonstrates the features of DRV10970 such as single hall operation for further cost optimization, sinusoidal drive with adaptive drive angle adjustment for better system efficinecy and overall performance, speed control via external pulse-width modulation (PWM) input which brings an ease of speed control, etc.

Schematic PCB

30 W Automotive 2 MHz Preregulator, Non-Isolated, Synchronous Buck Reference Design Based on NCV891930

Tarocco: Open source closed-loop motor controller for non-small machines (including firmware, PCB, etc.)

Desktop CNC machines often use stepper motors, often because they do not require position feedback sensors, thus reducing system cost. But there are situations where a position feedback sensor is needed or necessary, and the power output of a stepper motor, especially at high speeds, becomes a bottleneck for those who want a better performing machine.

Schematic PCB

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.

Schematic PCB