Zhang Zhang, Tang Zechen, Hu Wei, Xie Guangjun, Liu Gang, Cheng Xin
{"title":"一种能量收集的过零检测电路","authors":"Zhang Zhang, Tang Zechen, Hu Wei, Xie Guangjun, Liu Gang, Cheng Xin","doi":"10.1109/ICSICT49897.2020.9278357","DOIUrl":null,"url":null,"abstract":"Synchronized switch harvesting on capacitors (SSHC) circuit can effectively improve the efficiency of piezoelectric energy harvesting circuit. However, its output power and voltage flip efficiency are deeply affected by the accuracy of zero-crossing detection circuit. Based on SSHC circuit using potential comparison method, a piezoelectric energy harvesting circuit composed of piezoelectric element, zero-crossing detection circuit, pulse generation circuit, full-bridge rectifier and load is designed. The zero-crossing detection circuit using sampling resistance method can accurately determines the closing time of switches and improve the accuracy of this circuit. The simulation results show that this circuit can effectively improve the voltage flip efficiency and output power, too. In the case of a load of 100kΩ, the output power of proposed circuit is 368.72μW. Compared with the single-capacitor SSHC circuit using potential comparison method, it is improved by 46.08%.","PeriodicalId":6727,"journal":{"name":"2020 IEEE 15th International Conference on Solid-State & Integrated Circuit Technology (ICSICT)","volume":"45 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2020-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Zero-Crossing Detection Circuit for Energy Harvesting\",\"authors\":\"Zhang Zhang, Tang Zechen, Hu Wei, Xie Guangjun, Liu Gang, Cheng Xin\",\"doi\":\"10.1109/ICSICT49897.2020.9278357\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Synchronized switch harvesting on capacitors (SSHC) circuit can effectively improve the efficiency of piezoelectric energy harvesting circuit. However, its output power and voltage flip efficiency are deeply affected by the accuracy of zero-crossing detection circuit. Based on SSHC circuit using potential comparison method, a piezoelectric energy harvesting circuit composed of piezoelectric element, zero-crossing detection circuit, pulse generation circuit, full-bridge rectifier and load is designed. The zero-crossing detection circuit using sampling resistance method can accurately determines the closing time of switches and improve the accuracy of this circuit. The simulation results show that this circuit can effectively improve the voltage flip efficiency and output power, too. In the case of a load of 100kΩ, the output power of proposed circuit is 368.72μW. Compared with the single-capacitor SSHC circuit using potential comparison method, it is improved by 46.08%.\",\"PeriodicalId\":6727,\"journal\":{\"name\":\"2020 IEEE 15th International Conference on Solid-State & Integrated Circuit Technology (ICSICT)\",\"volume\":\"45 1\",\"pages\":\"1-4\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-11-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 IEEE 15th International Conference on Solid-State & Integrated Circuit Technology (ICSICT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICSICT49897.2020.9278357\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE 15th International Conference on Solid-State & Integrated Circuit Technology (ICSICT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICSICT49897.2020.9278357","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Zero-Crossing Detection Circuit for Energy Harvesting
Synchronized switch harvesting on capacitors (SSHC) circuit can effectively improve the efficiency of piezoelectric energy harvesting circuit. However, its output power and voltage flip efficiency are deeply affected by the accuracy of zero-crossing detection circuit. Based on SSHC circuit using potential comparison method, a piezoelectric energy harvesting circuit composed of piezoelectric element, zero-crossing detection circuit, pulse generation circuit, full-bridge rectifier and load is designed. The zero-crossing detection circuit using sampling resistance method can accurately determines the closing time of switches and improve the accuracy of this circuit. The simulation results show that this circuit can effectively improve the voltage flip efficiency and output power, too. In the case of a load of 100kΩ, the output power of proposed circuit is 368.72μW. Compared with the single-capacitor SSHC circuit using potential comparison method, it is improved by 46.08%.