{"title":"带有单核多谐振荡器的PWM控制器","authors":"K. Harada, H. Sakamoto, A. Katsuki","doi":"10.1109/INTLEC.1979.4793641","DOIUrl":null,"url":null,"abstract":"A new PWM controller with simple structure is presented. This controller consists of a modified transistor-core multivibrator having a single saturable core and is capable of changing the oscillation frequency with ease by a low control voltage. Accordingly, if this controller is applied to a small DC power supply or a feedback element of the switching regulator, a considerable reduction of the number of components is given in comparison with that of IC type. Furthermore, because the output signal has the nearly constant V/f ratio, the PWM controller is suitable for a simple speed control circuit of the small AC motor.","PeriodicalId":177302,"journal":{"name":"INTELEC - 1979 International Telecommunications Energy Conference","volume":"21 4","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1979-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"PWM Controller with Single Core Multivibrator\",\"authors\":\"K. Harada, H. Sakamoto, A. Katsuki\",\"doi\":\"10.1109/INTLEC.1979.4793641\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new PWM controller with simple structure is presented. This controller consists of a modified transistor-core multivibrator having a single saturable core and is capable of changing the oscillation frequency with ease by a low control voltage. Accordingly, if this controller is applied to a small DC power supply or a feedback element of the switching regulator, a considerable reduction of the number of components is given in comparison with that of IC type. Furthermore, because the output signal has the nearly constant V/f ratio, the PWM controller is suitable for a simple speed control circuit of the small AC motor.\",\"PeriodicalId\":177302,\"journal\":{\"name\":\"INTELEC - 1979 International Telecommunications Energy Conference\",\"volume\":\"21 4\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1979-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"INTELEC - 1979 International Telecommunications Energy Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/INTLEC.1979.4793641\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"INTELEC - 1979 International Telecommunications Energy Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/INTLEC.1979.4793641","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A new PWM controller with simple structure is presented. This controller consists of a modified transistor-core multivibrator having a single saturable core and is capable of changing the oscillation frequency with ease by a low control voltage. Accordingly, if this controller is applied to a small DC power supply or a feedback element of the switching regulator, a considerable reduction of the number of components is given in comparison with that of IC type. Furthermore, because the output signal has the nearly constant V/f ratio, the PWM controller is suitable for a simple speed control circuit of the small AC motor.
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