TY - GEN
T1 - Start-up Current Overshoot Moderation for a Headlight Driver with a Microcontroller Unit
AU - Pai, Kai Jun
AU - Chen, Po Hsun
N1 - Publisher Copyright:
© 2019 The Korean Institute of Power Electronics (KIPE).
PY - 2019/5
Y1 - 2019/5
N2 - The laser headlamp driver (LHD) possessing with a DC-DC converter, a feedback controller, and a safety standard circuit, was developed in this study. The buck-boost converter composed of the two-switch and two-diode for the DC-DC converter, which can be implemented in both boost or buck operations. Due to the operating ambient temperature of the laser diode causes the forward bias drift; using the feedback controller, the driving current of the leaser diode could be settled to deal with forward bias drift. In addition, the current overshoot exists when the operation of the buck-boost converter changes to the constant-current from the constant-voltage output mode, during the LHD start-up phase; the current overshoot would be exacerbated when laser diodes operate in the high ambient temperature. In this study, the proportional shifting proportional-integral technology was employed to the current-feedback controller to moderate the start-up current overshoot.
AB - The laser headlamp driver (LHD) possessing with a DC-DC converter, a feedback controller, and a safety standard circuit, was developed in this study. The buck-boost converter composed of the two-switch and two-diode for the DC-DC converter, which can be implemented in both boost or buck operations. Due to the operating ambient temperature of the laser diode causes the forward bias drift; using the feedback controller, the driving current of the leaser diode could be settled to deal with forward bias drift. In addition, the current overshoot exists when the operation of the buck-boost converter changes to the constant-current from the constant-voltage output mode, during the LHD start-up phase; the current overshoot would be exacerbated when laser diodes operate in the high ambient temperature. In this study, the proportional shifting proportional-integral technology was employed to the current-feedback controller to moderate the start-up current overshoot.
KW - -headlamp
KW - Buck-boost converter
KW - Proportional-integral control
UR - http://www.scopus.com/inward/record.url?scp=85071644399&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85071644399&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85071644399
T3 - ICPE 2019 - ECCE Asia - 10th International Conference on Power Electronics - ECCE Asia
SP - 2229
EP - 2234
BT - ICPE 2019 - ECCE Asia - 10th International Conference on Power Electronics - ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Power Electronics - ECCE Asia, ICPE 2019 - ECCE Asia
Y2 - 27 May 2019 through 30 May 2019
ER -