STEVAL-DPSLLCK1 datasheet, PDF

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STEVAL-DPSLLCK1: DescriptionPower management IC development tool 3 kW Full Bridge LLC resonant digital power supply evaluation kit; CategoryEmbedded solution Engineering tools Power management IC development tools; File Size5MB，8 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/; Environmental Compliance

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STEVAL-DPSLLCK1 Overview

Power management IC development tool 3 kW Full Bridge LLC resonant digital power supply evaluation kit

STEVAL-DPSLLCK1 Parametric

Parameter Name	Attribute value
Maker	STMicroelectronics
Product Category	Power Management IC Development Tools
product	Evaluation Kits
type	AC/DC Converters
Tools for assessment	VIPer27HD
Input voltage	375 V to 425 V
The output voltage	48 V
Output current	62.5 A
series	STEVAL-DPSLLCK1

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STEVAL-DPSLLCK1

Data brief

3 kW Full Bridge LLC resonant digital power supply evaluation kit

Features

•

Power ratings:

–

input DC voltage: 375 V to 425 V

–

output voltage: 48 V

maximum output current: 62.5 A

–

output power: 3 kW

–

peak efficiency: 95.3%

–

HF transformer isolation voltage: 4 kV

Resonant and switching frequencies:

–

max DC-DC switching frequency: 380 kHz (at startup)

–

closed loop switching frequency: 120 kHz to 250 kHz

–

resonant frequency: 175 kHz

Protection mechanisms:

–

undervoltage and overvoltage protection on input and output

–

overtemperature protection

–

short-circuit protection

–

forced cooling with air flow speed modulation according to the output power

and temperature

Efficiency:

–

adaptive synchronous rectification

–

light load burst mode

Digital control with STM32F334 microcontroller

•

Product summary

Bill of Materials and Schematics

3 kW power supply

evaluation kit

STEVAL-

DPSLLCK1

•

Description

The STEVAL-DPSLLCK1 is a digitally controlled 3 kW full bridge LLC resonant DC-

DC converter with output synchronous rectification. The kit consists of a power board,

digital control board, adapter board, and firmware modules.

The full bridge primary section of the LLC converter is based on MDmesh™ DM2

Power MOSFETs for high efficiency performance. The PWM switching frequency is

digitally controlled to regulate the output voltage. The converter operates at near

resonant frequencies to maximize efficiency and achieve Zero Voltage Switching

(ZVS) over the entire operating range.

The HF transformer provides galvanic isolation and magnetic integration of the

inductive elements for a compact design.

Synchronous rectification (SR) with STripFET™ F7 Power MOSFETs is employed on

the secondary side to reduce conduction losses.

The STM32F334 microcontroller on the digital control board embeds a high

resolution timer for finer regulation and can communicate status information via

USART, CAN, SMBus, and opto-coupled serial communication.

Both the primary and secondary sections are supplied by an off-line flyback circuit

based on VIPer27HD which provides regulated voltages to the control board, the

gate driver ICs and the signal conditioning circuits.

You can connect a PFC to the power board and extend communication and

interfacing with the supplied adapter board.

Main components and software

STM32F3x4

microcontroller

MDmesh DM2

Power MOSFET

STM32F334

STW70N60DM2

STripFET F7 Power

STP310N10F7

MOSFET

Off-line high voltage

VIPER27

converter

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