Analysis of Bootstrap Circuit Operation with an Inverted PWM Drive Scheme for a Three-Phase Inverter for a Brushless DC Motor Drive

Yongkeun Lee; Jongkwang Kim

doi:10.1109/CJECE.2019.2891850

Analysis of Bootstrap Circuit Operation with an Inverted PWM Drive Scheme for a Three-Phase Inverter for a Brushless DC Motor Drive

Yongkeun Lee
, Jongkwang Kim

Dept. of Semiconductor Engineering

Seoul National University of Science and Technology (SNUST)

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

A bootstrap circuit for operating the high-side insulated-gate bipolar transistor of a three-phase inverter for a brushless dc motor drive is analyzed theoretically to avoid under voltage lockout by minimizing the discharge of a bootstrap capacitor (BSC). Unlike various methods of reducing the discharge of BSCs, which limits the controllability of the motor speed/torque, a proposed inverted PWM driving scheme has no limit to the controllability while maintaining the proper voltage level for a BSC. This method is verified experimentally in this paper.

Original language	English
Article number	8680797
Pages (from-to)	58-65
Number of pages	8
Journal	Canadian Journal of Electrical and Computer Engineering
Volume	42
Issue number	1
DOIs	https://doi.org/10.1109/CJECE.2019.2891850
State	Published - 1 Dec 2019

Keywords

Bootstrap capacitor (BSC)
bootstrap circuit
discharging
inverted pulsewidth modulation (PWM)
three-phase inverter

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10.1109/CJECE.2019.2891850

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title = "Analysis of Bootstrap Circuit Operation with an Inverted PWM Drive Scheme for a Three-Phase Inverter for a Brushless DC Motor Drive",

abstract = "A bootstrap circuit for operating the high-side insulated-gate bipolar transistor of a three-phase inverter for a brushless dc motor drive is analyzed theoretically to avoid under voltage lockout by minimizing the discharge of a bootstrap capacitor (BSC). Unlike various methods of reducing the discharge of BSCs, which limits the controllability of the motor speed/torque, a proposed inverted PWM driving scheme has no limit to the controllability while maintaining the proper voltage level for a BSC. This method is verified experimentally in this paper.",

keywords = "Bootstrap capacitor (BSC), bootstrap circuit, discharging, inverted pulsewidth modulation (PWM), three-phase inverter",

author = "Yongkeun Lee and Jongkwang Kim",

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N2 - A bootstrap circuit for operating the high-side insulated-gate bipolar transistor of a three-phase inverter for a brushless dc motor drive is analyzed theoretically to avoid under voltage lockout by minimizing the discharge of a bootstrap capacitor (BSC). Unlike various methods of reducing the discharge of BSCs, which limits the controllability of the motor speed/torque, a proposed inverted PWM driving scheme has no limit to the controllability while maintaining the proper voltage level for a BSC. This method is verified experimentally in this paper.

AB - A bootstrap circuit for operating the high-side insulated-gate bipolar transistor of a three-phase inverter for a brushless dc motor drive is analyzed theoretically to avoid under voltage lockout by minimizing the discharge of a bootstrap capacitor (BSC). Unlike various methods of reducing the discharge of BSCs, which limits the controllability of the motor speed/torque, a proposed inverted PWM driving scheme has no limit to the controllability while maintaining the proper voltage level for a BSC. This method is verified experimentally in this paper.

KW - Bootstrap capacitor (BSC)

KW - bootstrap circuit

KW - discharging

KW - inverted pulsewidth modulation (PWM)

KW - three-phase inverter

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IS - 1

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ER -

Analysis of Bootstrap Circuit Operation with an Inverted PWM Drive Scheme for a Three-Phase Inverter for a Brushless DC Motor Drive

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