TY - JOUR
T1 - Analysis of Bootstrap Circuit Operation with an Inverted PWM Drive Scheme for a Three-Phase Inverter for a Brushless DC Motor Drive
AU - Lee, Yongkeun
AU - Kim, Jongkwang
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/12/1
Y1 - 2019/12/1
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
UR - http://www.scopus.com/inward/record.url?scp=85064139768&partnerID=8YFLogxK
U2 - 10.1109/CJECE.2019.2891850
DO - 10.1109/CJECE.2019.2891850
M3 - Article
AN - SCOPUS:85064139768
SN - 0840-8688
VL - 42
SP - 58
EP - 65
JO - Canadian Journal of Electrical and Computer Engineering
JF - Canadian Journal of Electrical and Computer Engineering
IS - 1
M1 - 8680797
ER -