{"title":"220 V mains 500 kHz class-E converter using a BIMOS","authors":"G. Lutteke, H. Raets","doi":"10.1109/PESC.1985.7070937","DOIUrl":"https://doi.org/10.1109/PESC.1985.7070937","url":null,"abstract":"Class-E converters enable high-efficiency switching at high switching frequencies and thus fulfil the fundamental preconditions for miniaturisation. This, however, must be paid for with a relatively high voltage stress across the switch causing problems when the converter is operated from the mains. A 500 kHz 21 W electronic lamp ballast for 220 V mains is presented. A cascoded BIMOS incorporating a TV deflection transistor combines rapid switching with the required excessive voltage capability for mains drive. An excellent efficiency of 93% could be achieved.","PeriodicalId":153760,"journal":{"name":"1985 IEEE Power Electronics Specialists Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132151230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the output decrease of the DC-DC converter with the line input filter","authors":"K. Harada, H.J. Kim","doi":"10.1109/PESC.1985.7070964","DOIUrl":"https://doi.org/10.1109/PESC.1985.7070964","url":null,"abstract":"When the resonant frequency between inductance and capacitance of the line input filter in the DC-DC converter closes to the switching frequency, the output voltage decreases abnormally by the resonance of the line input filter. This abnormal decrease is independent of the feedback loop gain. These phenomenon is analyzed on the typical forward converter with the line input filter.","PeriodicalId":153760,"journal":{"name":"1985 IEEE Power Electronics Specialists Conference","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132264836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Simulation of the six-pulse bridge converter with input filter","authors":"E. B. Shahrodi, S. Dewan","doi":"10.1109/PESC.1985.7070987","DOIUrl":"https://doi.org/10.1109/PESC.1985.7070987","url":null,"abstract":"This paper presents the details of a method for the simulation of the six-pulse bridge converter with input filter. The input filter has a general form including any number of harmonic traps. In addition, the characteristics of the converter gating circuit are also simulated. The set of equations derived in this paper are valid for all modes of operation of the bridge converter including single and double commutation periods, freewheeling period, and operation under faulty conditions. The method is used for the steady state, transient and fault studies. Several examples illustrating the applications of the simulation method are included. The experimental results are used to verify the accuracy of the simulation method.","PeriodicalId":153760,"journal":{"name":"1985 IEEE Power Electronics Specialists Conference","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126252543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Laser trimming of thyristors to add an overvoltage self-protected turn-on feature","authors":"J. Przybysz","doi":"10.1109/PESC.1985.7070982","DOIUrl":"https://doi.org/10.1109/PESC.1985.7070982","url":null,"abstract":"Laser processing techniques have produced thyristors which are free from destructive overvoltage breakdown. Laser-fabricated structures that generate self-triggering currents are described. Test results demonstrate a temperature-stable switching voltage, uncompromised di/dt ratings, and the ability to withstand 14,000,000 successive overvoltage transients. Circuit implications of overvoltage self-protected thyristors are discussed.","PeriodicalId":153760,"journal":{"name":"1985 IEEE Power Electronics Specialists Conference","volume":"232 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131443028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the automatic interconnection between solar cells and inverter","authors":"K. Harada, K. Murata","doi":"10.1109/PESC.1985.7070934","DOIUrl":"https://doi.org/10.1109/PESC.1985.7070934","url":null,"abstract":"A novel system including many solar cells and a secondary battery is presented. These energy sources are connected to each other with a bus bar through inverters and supply ac power to loads on the bus bar. The output voltage of the solar cell is always kept constant in order to derive the almost maximum output power from the solar cell when the light strength from the sun is varied. When multiple-loads in different places should be supplied, the solar cells can be distributed near by the respective load in order to remove transmission loss of the bus bar.","PeriodicalId":153760,"journal":{"name":"1985 IEEE Power Electronics Specialists Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131098724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modeling and analysis of spacecraft power systems","authors":"B. Cho, F. Lee","doi":"10.1109/PESC.1985.7070990","DOIUrl":"https://doi.org/10.1109/PESC.1985.7070990","url":null,"abstract":"A comprehensive large-scale power system modeling using the multi-port coupling method is developed to facilitate design and analysis of present and future spacecraft power systems.","PeriodicalId":153760,"journal":{"name":"1985 IEEE Power Electronics Specialists Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134245675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A new high frequency cycloconverter","authors":"S. Okada, T. Tanaka, H. Kasahara","doi":"10.1109/PESC.1985.7070942","DOIUrl":"https://doi.org/10.1109/PESC.1985.7070942","url":null,"abstract":"A new AC to AC frequency converter which uses three pairs of back-to-back thyristors, and converts three-phase power frequency to a single-phase higher frequency, is introduced in this paper. In the same type of converters made public recently, which use two six-pulse fully-controlled bridge rectifiers, high frequency current pulses must be fed to load tank circuit through two thyristor switches in series. But in the system presented here, each pulse flows through either one switch or parallel two switches, so that it is expected to provide good efficiency with the advantage of a small parts count. Features inherent in this type of converter such as stable operation, high power factor and low harmonics are also maintained. The operation of the circuit along with circuit parameter requirements are described using a simplified model of the converter.","PeriodicalId":153760,"journal":{"name":"1985 IEEE Power Electronics Specialists Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115903377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of new current source GTO inverter fed induction motor drive","authors":"H. Kubota, K. Matsuse, J. Ree","doi":"10.1109/PESC.1985.7071010","DOIUrl":"https://doi.org/10.1109/PESC.1985.7071010","url":null,"abstract":"A new current source GTO thyristor inverter is analyzed with an induction motor as a load. Characteristics of the inverter are described as a result of experiments and simulations. Furthermore, this inverter is compared with the conventional current source inverter.","PeriodicalId":153760,"journal":{"name":"1985 IEEE Power Electronics Specialists Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123031523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High current JBS rectifiers and their impact on switching power supplies","authors":"B. Baliga, H. Chang, R. Steigerwald","doi":"10.1109/PESC.1985.7070953","DOIUrl":"https://doi.org/10.1109/PESC.1985.7070953","url":null,"abstract":"The junction barrier controlled Schottky (JBS) rectifier is a Schottky rectifier with a p-n junction grid structure integrated into the device structure to improve its reverse blocking characteristics. This paper reports the development of large area (0.5 cm2), 30V, JBS rectifiers capable of handling over 25A of forward current while operating at up to 125°C with good reverse blocking characteristics. Trade-off curves between forward voltage drop and reverse leakage current are introduced to allow optimization of these devices. Evaluation of their impact on low voltage switching power supplies is presented.","PeriodicalId":153760,"journal":{"name":"1985 IEEE Power Electronics Specialists Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116023250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Low-frequency characterization of PWM converters","authors":"K. Ngo","doi":"10.1109/PESC.1985.7070946","DOIUrl":"https://doi.org/10.1109/PESC.1985.7070946","url":null,"abstract":"Low-frequency components of states or outputs in PWM dc and ac converters can be characterized by differential equations called describing equations. These equations are derived by inspection of converter topology and use of switching functions and duty ratios. Their steady-state and small-signal dynamic solution shows how energy-storage elements in a converter/load system shape the frequency response of conversion functions established by the switches.","PeriodicalId":153760,"journal":{"name":"1985 IEEE Power Electronics Specialists Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127442446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}