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

Electric bike charger

Shared power bank

Transformer Terminal Unit (TTU)

Solar inverters

First generation electric vehicle power inverter control reference platform

Open source lithium battery management board, charging 5V2A, discharging 5V/1.52A or 12V/0.76A

This DIY LiPo super charger can charge a single LiPo battery and protect it from overvoltage, overload and short circuit. In addition, it can boost the battery voltage to 5 V or 12 V. The boosted output voltage is protected by an "eFuse" IC with a maximum output current of 1.52 A at 5 V and 0.76 A at 12 V. The charger part of the circuit requires a +5V power supply, which can be connected via USB-C, or simply solder two wires to pads on the PCB. Additionally, other connections can be soldered to pads on the PCB or use individual pin headers.

Schematic PCB

2017 Electrical Contest Question K-Analysis of Single-Phase Electrical Appliances-Design Plan and Report (3 National Awards)

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2017 Electronic Competition H Question-Remote Amplitude-Frequency Characteristics Test Device-Design Plan and Report (3 National Awards)

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2017 Electric Power Competition Question A-Microgrid Simulation System-National First Report + Schematic Diagram + Simulation Document (Changsha University of Science and Technology)

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2018 Electronic Competition Question E-Energy Recovery Device (Xidian University)

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2021 College Student Electronic Design Contest Topic H Outstanding Works Collection (Electrical Appliance Analysis and Identification Device)

Schematic PCB