Coreless printed circuit board (PCB) transformers for power MOSFET/IGBT gate drive circuits

Author

Hui, S. Y Ron ; Chung, Henry Shu-Hung ; Tang, S.C.

Author_Institution

Dept. of Electron. Eng., City Polytech. of Hong Kong, Kowloon, Hong Kong

Volume

14

Issue

3

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

422

Lastpage

430

Abstract

Gate drive circuits for modern power electronic switches, such as MOSFET and insulated gate bipolar transistor (IGBT), often require electrical isolation. This paper describes the modeling and experimental results of some coreless printed circuit board (PCB)-based transformers that can be used for MOSFET and IGBT devices at high-frequency (500 kHz to 2 MHz) operation. PCB-based transformers do not require the manual winding procedure and thus simplify the manufacturing process of transformer-isolated gate drive circuits. With no core loss, coreless transformers are found to have favorable characteristics at high-frequency operations. This project demonstrates an important point that the size of the magnetic core can approach zero and become zero when the frequency is sufficiently high

Keywords

driver circuits; insulated gate bipolar transistors; power MOSFET; power bipolar transistors; power semiconductor switches; printed circuit accessories; transformers; 500 kHz to 2 MHz; coreless PCB transformers; electrical isolation; high-frequency operating characteristics; magnetic core size; manufacturing process; power MOSFET/IGBT gate drive circuits; power electronic switches; printed circuit board; transformer-isolation; Insulated gate bipolar transistors; MOSFET circuits; Magnetic cores; Manufacturing processes; Power MOSFET; Power electronics; Printed circuits; Switches; Switching circuits; Transformer cores;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.761685

Filename

761685