{"title":"一种减小激光二极管点燃电流尖峰的四相增益控制方法用于激光前照灯电源单元","authors":"Kai-Jun Pai","doi":"10.23919/MIXDES52406.2021.9497609","DOIUrl":null,"url":null,"abstract":"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.","PeriodicalId":375541,"journal":{"name":"2021 28th International Conference on Mixed Design of Integrated Circuits and System","volume":"16 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Four-Phase Gain Control Method to Reduce the Ignited Current Spike of the Laser Diode Using in a Laser Headlight Power Supply Unit\",\"authors\":\"Kai-Jun Pai\",\"doi\":\"10.23919/MIXDES52406.2021.9497609\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"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.\",\"PeriodicalId\":375541,\"journal\":{\"name\":\"2021 28th International Conference on Mixed Design of Integrated Circuits and System\",\"volume\":\"16 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-06-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 28th International Conference on Mixed Design of Integrated Circuits and System\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.23919/MIXDES52406.2021.9497609\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 28th International Conference on Mixed Design of Integrated Circuits and System","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/MIXDES52406.2021.9497609","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Four-Phase Gain Control Method to Reduce the Ignited Current Spike of the Laser Diode Using in a Laser Headlight Power Supply Unit
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.
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