{"title":"一种具有高速、高精度峰值电流控制单元的同步升压变换器","authors":"Shengpeng Tang, Xianzhi Meng, Donglie Gu, Jianxiong Xi, Lenian He, Kexu Sun","doi":"10.1109/ISOCC.2016.7799822","DOIUrl":null,"url":null,"abstract":"A 3 MHz, 48W Boost converter with high speed and high accuracy Peak Current Control Unit (PCCU) is presented. The Boost controller IC adopts a novel PCCU consisting of a fully differential open-loop operational transconductance amplifier (OTA) and a trans-impedance amplifier (TIA), which can minimize the delay and error of the whole control loop. In the PCCU, the compensated output of error amplifier is moved forward to improve the control accuracy further. This IC is designed in CSMC 0.8 um 60 V BCD process. The simulation results show the Boost converter operates at 3 MHz and the peak current control error is 1.3% under the worst situation. The delay of peak current trigger point to the low side gate driver (LDRV) output is 25.14 ns and the delay of the compensated output of error amplifier to LDRV output is 37.56 ns.","PeriodicalId":278207,"journal":{"name":"2016 International SoC Design Conference (ISOCC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A synchronous boost converter with high speed and high accuracy peak current control unit\",\"authors\":\"Shengpeng Tang, Xianzhi Meng, Donglie Gu, Jianxiong Xi, Lenian He, Kexu Sun\",\"doi\":\"10.1109/ISOCC.2016.7799822\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A 3 MHz, 48W Boost converter with high speed and high accuracy Peak Current Control Unit (PCCU) is presented. The Boost controller IC adopts a novel PCCU consisting of a fully differential open-loop operational transconductance amplifier (OTA) and a trans-impedance amplifier (TIA), which can minimize the delay and error of the whole control loop. In the PCCU, the compensated output of error amplifier is moved forward to improve the control accuracy further. This IC is designed in CSMC 0.8 um 60 V BCD process. The simulation results show the Boost converter operates at 3 MHz and the peak current control error is 1.3% under the worst situation. The delay of peak current trigger point to the low side gate driver (LDRV) output is 25.14 ns and the delay of the compensated output of error amplifier to LDRV output is 37.56 ns.\",\"PeriodicalId\":278207,\"journal\":{\"name\":\"2016 International SoC Design Conference (ISOCC)\",\"volume\":\"36 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 International SoC Design Conference (ISOCC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISOCC.2016.7799822\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 International SoC Design Conference (ISOCC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISOCC.2016.7799822","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
提出了一种3mhz、48W、高速高精度峰值电流控制单元(pcccu)的升压变换器。Boost控制器IC采用了由全差分开环跨导运算放大器(OTA)和跨阻抗放大器(TIA)组成的新型pcccu，使整个控制回路的延迟和误差最小化。在pcccu中，误差放大器的补偿输出被前移，进一步提高了控制精度。该集成电路采用CSMC 0.8 um 60 V BCD工艺设计。仿真结果表明，在最坏情况下，Boost变换器工作频率为3mhz，峰值电流控制误差为1.3%。峰值电流触发点对低侧栅极驱动器(LDRV)输出的延迟为25.14 ns，误差放大器补偿输出对LDRV输出的延迟为37.56 ns。
A synchronous boost converter with high speed and high accuracy peak current control unit
A 3 MHz, 48W Boost converter with high speed and high accuracy Peak Current Control Unit (PCCU) is presented. The Boost controller IC adopts a novel PCCU consisting of a fully differential open-loop operational transconductance amplifier (OTA) and a trans-impedance amplifier (TIA), which can minimize the delay and error of the whole control loop. In the PCCU, the compensated output of error amplifier is moved forward to improve the control accuracy further. This IC is designed in CSMC 0.8 um 60 V BCD process. The simulation results show the Boost converter operates at 3 MHz and the peak current control error is 1.3% under the worst situation. The delay of peak current trigger point to the low side gate driver (LDRV) output is 25.14 ns and the delay of the compensated output of error amplifier to LDRV output is 37.56 ns.
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