NUVOTON Wireless Charging Reference Solution

Schematic PCB

Twonkie: Open Source USB-PD Sniff, a USB-PD sniffer based on Google Twinkie

Supports data monitoring and PD packet injection on CC1 and CC2 lines, and voltage and current detection on VBUS and VCONN.

Schematic PCB

High-Efficiency 65W USB-C Dual-Port Charger Reference Design with ATQ Transformer

100W USB-C dual-port charger reference design with single-stage PFC

170 W AC-DC reference design with input voltage range for e-bike and power tool battery chargers

Schematic PCB

Green Smart BMS: Intelligent Battery Management System

The project originated when the author purchased an electric motorcycle for his daughter and replaced its original lead-acid gel battery with a lithium battery pack. Due to the lack of smart, cheap and easy to configure lithium battery management systems on the market, the author decided to make one himself.

Schematic PCB

RDR-853 - 300 W high thermal performance three-phase inverter using BridgeSwitch motor driver and LinkSwitch-TN2

Schematic PCB

DER-870 - 400 W three-phase inverter using BridgeSwitch motor driver and LinkSwitch-TN2

Schematic PCB

RDR-852 - 200 W three-phase inverter using BridgeSwitch motor driver and LinkSwitch-TN2

Schematic PCB

Two-Phase Power Meter Reference Design

As global energy consumption continues to grow, especially in the residential market, utility providers require increasingly accurate and cost-effective energy metering solutions. The Kinetis® M Series two-phase energy meter reference design meets these accuracy and cost requirements by providing a high-performance analog front end combined with an embedded programmable gain amplifier to improve the accuracy of energy measurements.

Schematic PCB

Totem Pole Bridgeless PFC Converter

This reference design demonstrates totem pole bridgeless power factor correction (PFC) using the MC56F83783, MC56F81xxx, or MC56F82748 digital signal controller (DSC).

Schematic PCB

KV46 Digital LLC Converter Reference Design

This provides a fully digital design of LLC resonant converter based on HVP-LLC. The HVP-LLC development board is part of the NXP® High Voltage Platform.

Combined with the HVP-KV46F150 control card, it provides a ready-made software development platform for a 250-watt power supply with an input voltage of 390V DC and an output of 12V/21A.

Schematic PCB

LLC resonant converter with synchronous rectifier

This reference design demonstrates the implementation of an LLC resonant converter using the MC56F83783, MC56F81xxx, or MC56F82748 digital signal controller (DSC).

Schematic PCB

Three-Phase Power Meter Reference Design

The three-phase power meter reference design is used to measure and record active and reactive energy in directly connected three-phase networks. It is pre-certified to the European EN50470-1, EN50470-3, Class B and Class C, and IEC 62053-21 and IEC 62052-11 international standards for active energy class 2 and class 1 electronic meters.

Schematic PCB

KV Series Full-Bridge DC-DC Switched Mode Power Supply (SMPS)

The full-bridge DC-DC switch mode power supply reference design is based on V-Series MCUs and is intended to provide examples of power conversion applications. A full-bridge DC-DC converter is a transformer-isolated step-down converter. The full-bridge topology consists of a full-bridge inverter module, transformer, synchronous rectifier module and filter.

Schematic PCB

Sub-μA current sensor based on Kinetis K22F

The Sub-μA Current Sensor is a Kinetis K22F based current measurement board running on FreeRTOS and can be used with the Freedom Development Ecosystem or any other Arduino-like development board.

This reference design allows for non-intrusive connection between any MCU and a 3.3V shield and measurement of a wide range of low currents (~60 nA – 5 mA). Multiple communication methods are available, including integration with Freedom Sensor Toolbox (CE).

Schematic PCB

smart meter

Smart Energy Gateway

Smart gas meter/water meter

Grid concentrator