Datasheet

Input

DC/DC

Stage

Load

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Hardware Overview

The board can accept any of the C2000™ series controlCARDs. A F28027 control card is shipped with the

kit. Software changes may be necessary so that the board will work with a different controlCARD. All

features may not be supported by all controlCARDs.

1.2 Kit Features

The kit has the following features:

• Isolated power stage

• Onboard Isolated JTAG emulation

• Isolated universal asynchronous receiver/transmitter (UART) communication through the serial

communications interface (SCI) peripheral and FTDI chip

• Hardware Developer’s Package is available and includes schematics, bill of materials, Gerber files,

and so forth.

1.3 Kit Specifications

The high-voltage half-bridge LLC resonant DC/DC converter with synchronous rectification kit board has

the following electrical specifications:

• Input voltage: 375 to 405 VDC

• Rated output power: 300 W

• Output voltage : 12 VDC

• Rated output current: 25 A

• Output voltage line regulation (Io = 1 A): ≤1%

• Output voltage load regulation (Vin = 390 V): ≤1%

• Output voltage peak-to-peak ripple (Vin = 390 V and Io = 25 A): ≤120 mV

• Efficiency (Vin = 390 V and Io = 25 A): >90%

• Switching frequency (normal operation): 80 kHz to 150 kHz

• Resonant frequency: f0 = ~130 kHz

2 Hardware Overview

Figure 2 illustrates a DC/DC power conversion application running from DC power.

Figure 2. Block Diagram for a DC/DC Power Conversion Application

SPRABS1–February 2013 High-Voltage Half-Bridge LLC Resonant DC/DC Converter With Synchronous

Rectification Hardware Kit

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