Novel PWM technique without causing reversal DC-link current for brushless DC motor drives with bootstrap driver

Author

Lai, Yen-Shin ; Shyu, Fu-San ; Lin, Yong-Kai

Author_Institution

Dept. of Electr. Eng., Nat. Taipei Univ. of Technol., Taiwan

Volume

3

fYear

2005

fDate

2-6 Oct. 2005

Firstpage

2182

Abstract

For small power applications of brushless DC motor (BLDM) drives, the inverter consists of MOSFET and bootstrap driver. The speed of BLDM is controlled by the frequency and duty of the pulse-width modulation (PWM) technique, which is one of the key technologies for the development of BLDM drives. This paper presents a novel PWM technique for BLDM drives with bootstrap driver circuit. As compared with existing PWM techniques for BLDM drives the presented technique doesn´t cause any reversal DC-link current and thereby reducing the DC-link voltage fluctuation of the drives. Experimental results derived from an FPGA-based BLDM drives are presented to fully support the analysis and claim.

Keywords

DC motor drives; PWM invertors; bootstrap circuits; brushless DC motors; driver circuits; MOSFET; PWM technique; bootstrap driver circuit; brushless DC motor drives; inverter; reversal DC-link current; speed control; Brushless DC motors; Capacitors; Choppers; Driver circuits; Frequency; MOSFET circuits; Power MOSFET; Pulse width modulation; Pulse width modulation inverters; Rails;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2005. Fourtieth IAS Annual Meeting. Conference Record of the 2005

ISSN

0197-2618

Print_ISBN

0-7803-9208-6

Type

conf

DOI

10.1109/IAS.2005.1518749

Filename

1518749