TY - GEN
T1 - A Four-Phase Gain Control Method to Reduce the Ignited Current Spike of the Laser Diode Using in a Laser Headlight Power Supply Unit
AU - Pai, Kai Jun
N1 - Publisher Copyright:
© 2021 Lodz University of Technology.
PY - 2021/6/24
Y1 - 2021/6/24
N2 - A laser headlight power supply unit (LHPSU) was implemented and developed to drive laser diodes. The LHPSU possessed with the current error amplifier, the buck-boost converter, and the buck-boost converter controller. In the high ambient air temperature, when the dynamic resistance of the laser diode was increased, the the buck-boost converter operated in the buck mode, and the current error amplifier adopted the proportional-integral control, the laser diode driving current caused a start-up current spike, this over-specified current spike damages to the laser diode configuration, and the optical output power would be decayed. Thus, a four-phase gain control method can be used to reduce the ignited current spike of the laser diode.
AB - A laser headlight power supply unit (LHPSU) was implemented and developed to drive laser diodes. The LHPSU possessed with the current error amplifier, the buck-boost converter, and the buck-boost converter controller. In the high ambient air temperature, when the dynamic resistance of the laser diode was increased, the the buck-boost converter operated in the buck mode, and the current error amplifier adopted the proportional-integral control, the laser diode driving current caused a start-up current spike, this over-specified current spike damages to the laser diode configuration, and the optical output power would be decayed. Thus, a four-phase gain control method can be used to reduce the ignited current spike of the laser diode.
KW - buck-boost converter
KW - error amplifier
KW - headlight
KW - laser
KW - proportional-integral
UR - http://www.scopus.com/inward/record.url?scp=85112423149&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85112423149&partnerID=8YFLogxK
U2 - 10.23919/MIXDES52406.2021.9497609
DO - 10.23919/MIXDES52406.2021.9497609
M3 - Conference contribution
AN - SCOPUS:85112423149
T3 - Proceedings of 28th International Conference on Mixed Design of Integrated Circuits and Systems, MIXDES 2021
SP - 191
EP - 196
BT - Proceedings of 28th International Conference on Mixed Design of Integrated Circuits and Systems, MIXDES 2021
A2 - Napieralski, Andrzej
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 28th International Conference on Mixed Design of Integrated Circuits and Systems, MIXDES 2021
Y2 - 24 June 2021 through 26 June 2021
ER -