User Guide
Please read the Important Notice and Warnings at the end of this document
Revision 1.0
www.infineon.com
2018-03-01
UG_1801_PL16_1802_225559
Full-bridge converter for UPS
D
2
PAK/D
2
PAK-7 kit
About this document
This user guide describes the Infineon full-bridge demo board for UPS. The current design considers only the
power section including drivers and power devices with
D
2
packages.
D
2
7-pin packages can also be used in this
demo board, which enables users to evaluate the performance of power MOSFETs and their drivers.
Scope and purpose
This document is intended to describe the functionalities of UPS converting DC to AC voltages. Users can then
evaluate the performance of power MOSFETs with gate driver ICs. With Infineon low-R
DS(on)
MOSFETs the demo
board can help reduce system cost and time-to-market.
Intended audience
This document addresses the market for UPS manufacturers with the goal of providing a high-performance
system solution at low cost.
Table of contents
About this document ............................................................................................................................1
Table of contents..................................................................................................................................1
1
Full-bridge converter for UPS with D
2
PAK/D
2
PAK-7 kit .......................................................... 2
1.1
Overview............................................................................................................................................2
1.1.1
Key features ..................................................................................................................................3
1.2
Schematic ..........................................................................................................................................4
1.3
Layout ................................................................................................................................................4
1.4
Power-up procedure...........................................................................................................................6
1.4.1
PWM signal selections...................................................................................................................6
1.5
Performance evaluations....................................................................................................................6
1.5.1
Performance with heatsink at the front .........................................................................................6
1.5.2
Performance with heatsink at the back .......................................................................................10
1.6
Power loss estimations of MOSFETs and CS resistor ........................................................................ 11
1.7
Bill of Materials (BOM) ..................................................................................................................... 13
1.8
Additional results with D
2
PAK-7 (IRFS7430-7P).................................................................................14
1.8.1
Performance with heatsink at the back with 420 W load .............................................................14
1.8.2
Performance with heatsink at the back with 500 W .....................................................................15
1.8.3
Performance with heatsink at the front with 500 W..................................................................... 17
Revision history ..................................................................................................................................19
