Discussion of Internal Noise Currents in a Control Circuit on a 200-kHz Switching PWM Inverter

Author

Wada, Keiji ; Shirakawa, Kazuhiro ; Shimizu, Toshihisa

Author_Institution

Tokyo Metropolitan Univ., Tokyo

fYear

2007

fDate

2-5 April 2007

Firstpage

423

Lastpage

428

Abstract

This paper discusses noise currents in a control or gate-drive circuit of a 200-kHz PWM inverter. When the MOSFETs of the inverter are turned-on or -off, the noise current flows into the control and drive circuits. As a result, a malfunction in the controller of the inverter may occur. The equivalent circuit for the noise current is estimated from the experimental waveforms. This paper discusses three suppression methods of the internal noise current, and experimental results verify the effectiveness of the proposed method. Finally, a design procedure for the gate-drive circuit of a high-frequency switching PWM inverter is described.

Keywords

MOSFET circuits; PWM invertors; circuit noise; equivalent circuits; interference suppression; switching convertors; MOSFET; control circuit; equivalent circuit; frequency 200 kHz; gate-drive circuit; high-frequency switching PWM inverter; internal noise currents; noise suppression; power 400 W; suppression methods; Circuit noise; Cooling; Equivalent circuits; MOSFETs; Printed circuits; Pulse width modulation inverters; Semiconductor device noise; Switching circuits; Switching converters; Switching frequency; EMI; Gate drive circuit; Internal noise current; PWM inverter; Printed circuit board(PCB);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Conversion Conference - Nagoya, 2007. PCC '07

Conference_Location

Nagoya

Print_ISBN

1-4244-0844-X

Electronic_ISBN

1-4244-0844-X

Type

conf

DOI

10.1109/PCCON.2007.373002

Filename

4239192