{"title":"基于单片机的精密变相移相器","authors":"S. Rao, V. Kumar, P. Sankaran","doi":"10.1109/ETD.1995.403462","DOIUrl":null,"url":null,"abstract":"An analog and digital feedback compensation technique employing an active RC all pass filter is described for obtaining a frequency and amplitude independent, drift free phase shift for sinusoidal signals. While the analog feedback for realising the active R is of conventional type, the digital feedback for controlling C is implemented with a modified successive approximation (SA) technique. The implementation of the SA scheme employing discrete digital ICs as well as a microcomputer is described. A prototype built works well over a frequency range of 20 Hz to 50 kHz and has a phase stability of /spl plusmn/0.2.<<ETX>>","PeriodicalId":302763,"journal":{"name":"Proceedings Electronic Technology Directions to the Year 2000","volume":"23 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1995-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Microcontroller based precision variable-phase phase-shifter\",\"authors\":\"S. Rao, V. Kumar, P. Sankaran\",\"doi\":\"10.1109/ETD.1995.403462\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An analog and digital feedback compensation technique employing an active RC all pass filter is described for obtaining a frequency and amplitude independent, drift free phase shift for sinusoidal signals. While the analog feedback for realising the active R is of conventional type, the digital feedback for controlling C is implemented with a modified successive approximation (SA) technique. The implementation of the SA scheme employing discrete digital ICs as well as a microcomputer is described. A prototype built works well over a frequency range of 20 Hz to 50 kHz and has a phase stability of /spl plusmn/0.2.<<ETX>>\",\"PeriodicalId\":302763,\"journal\":{\"name\":\"Proceedings Electronic Technology Directions to the Year 2000\",\"volume\":\"23 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1995-05-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings Electronic Technology Directions to the Year 2000\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ETD.1995.403462\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings Electronic Technology Directions to the Year 2000","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ETD.1995.403462","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Microcontroller based precision variable-phase phase-shifter
An analog and digital feedback compensation technique employing an active RC all pass filter is described for obtaining a frequency and amplitude independent, drift free phase shift for sinusoidal signals. While the analog feedback for realising the active R is of conventional type, the digital feedback for controlling C is implemented with a modified successive approximation (SA) technique. The implementation of the SA scheme employing discrete digital ICs as well as a microcomputer is described. A prototype built works well over a frequency range of 20 Hz to 50 kHz and has a phase stability of /spl plusmn/0.2.<>
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
