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1970 IEEE Power Electronics Specialists Conference最新文献

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A general unified approach to modelling switching-converter power stages 一种通用统一的开关变换器功率级建模方法
1970 IEEE Power Electronics Specialists Conference Pub Date : 1976-06-08 DOI: 10.1109/PESC.1976.7072895
R. Middlebrook, Slobodan Cuk
{"title":"A general unified approach to modelling switching-converter power stages","authors":"R. Middlebrook, Slobodan Cuk","doi":"10.1109/PESC.1976.7072895","DOIUrl":"https://doi.org/10.1109/PESC.1976.7072895","url":null,"abstract":"A method for modelling switching-converter power stages is developed, whose starting point is the unified state-space representation of the switched networks and whose end result is either a complete state-space description or its equivalent small-signal low<-f requency linear circuit model. A new canonical circuit model is proposed, whose fixed topology contains all the essential inputr-output and control properties of any dc-todc switching converter, regardless of its detailed configuration, and by which different converters can be characterized in the form of a table conveniently stored in a computer data bank to provide a useful tool for computer aided design and optimization. The new canonical circuit model predicts that, in general;switching action introduces both zeros and poles into the duty ratio to output transfer function in addition to those from the effective filter network.","PeriodicalId":208049,"journal":{"name":"1970 IEEE Power Electronics Specialists Conference","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116846942","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}
引用次数: 3003
An "unrestricted frequency changer" employing force commutated thyristors 一种采用力整流晶闸管的“无限制变频器”
1970 IEEE Power Electronics Specialists Conference Pub Date : 1976-06-08 DOI: 10.1109/PESC.1976.7072913
E. J. Stacey
{"title":"An \"unrestricted frequency changer\" employing force commutated thyristors","authors":"E. J. Stacey","doi":"10.1109/PESC.1976.7072913","DOIUrl":"https://doi.org/10.1109/PESC.1976.7072913","url":null,"abstract":"A new approach for applying forced commutation to a thyristor cycloconverter is presented. Using a known waveform synthesis technique, this type of cycloconverter possesses several unique characteristics. The theory of operation as related to a six-pulse, three-phase bridge configured cyclonconverter is presented. Performance of a working model is illustrated in the form of calibrated waveform oscillographs. In view of its simplicity, high efficiency and technical advantages, this type of cyclonconverter is worthy of consideration for many power frequency applications.","PeriodicalId":208049,"journal":{"name":"1970 IEEE Power Electronics Specialists Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128307378","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}
引用次数: 7
A method of surge reduction in the switching regulator 一种在开关调节器中减少浪涌的方法
1970 IEEE Power Electronics Specialists Conference Pub Date : 1976-06-08 DOI: 10.1109/PESC.1976.7072933
K. Harada, H. Matsuo
{"title":"A method of surge reduction in the switching regulator","authors":"K. Harada, H. Matsuo","doi":"10.1109/PESC.1976.7072933","DOIUrl":"https://doi.org/10.1109/PESC.1976.7072933","url":null,"abstract":"When the switching regulator is used for the supply of the color T.V. receiver, the following two conditions are desired to be satisfied. (1) The switching operations should be completed within the retrace interval of horizontal scanning. (2) The output voltage is close to the input voltage value. To realize a regulator satisfying both of these two conditions, a reactor with two windings should be used. In this case, turn ration of windings differs far from unity. Hence a surge voltage due to leakage inductance appears across the transistor. The amount of the surge may be great enough to cause a break down in the transistor. We propose in this paper a method of cascade connection to give a solution to the problem of switching surge. The key point of the surge reduction is to make use of a cascade connection of the switching regulator with reactors of single winding. The efficiency, the voltage rating of the transistor and the regulation range are discussed on typical three kinds of circuit.","PeriodicalId":208049,"journal":{"name":"1970 IEEE Power Electronics Specialists Conference","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134224646","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}
引用次数: 8
A frequency-stabilized free-running DC-DC converter circuit employing pulse-width control regulation 一种采用脉宽控制调节的频率稳定的自由运行DC-DC变换器电路
1970 IEEE Power Electronics Specialists Conference Pub Date : 1976-06-08 DOI: 10.1109/PESC.1976.7072918
W. Peterson
{"title":"A frequency-stabilized free-running DC-DC converter circuit employing pulse-width control regulation","authors":"W. Peterson","doi":"10.1109/PESC.1976.7072918","DOIUrl":"https://doi.org/10.1109/PESC.1976.7072918","url":null,"abstract":"A dc-to-dc converter circuit in the power range of 10 to 50 watts is described. While comparable to ringing choke converters or self-oscillating switching regulators in simplicity, small size, and low cost, this circuit offers many of the features usually found only in larger, more-complex driven converters.","PeriodicalId":208049,"journal":{"name":"1970 IEEE Power Electronics Specialists Conference","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129615787","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}
引用次数: 5
The biased transformer DC-to-DC converter 偏置变压器dc - dc变换器
1970 IEEE Power Electronics Specialists Conference Pub Date : 1976-06-08 DOI: 10.1109/PESC.1976.7072917
Manfred Lilienstein, Raymond Miller
{"title":"The biased transformer DC-to-DC converter","authors":"Manfred Lilienstein, Raymond Miller","doi":"10.1109/PESC.1976.7072917","DOIUrl":"https://doi.org/10.1109/PESC.1976.7072917","url":null,"abstract":"A dc-to-dc converter design based on the constant-current flux-reset principle is presented. Such converters use a mulitude of separate individual half-wave switching sections. Each section consists of a power transistor and a transformer which is reset through an external bias current source. The transformer typically contains a square-loop core without an airgap. Center tap, SCR, and bridge-type configurations are presented attendant to single-phase full-wave, and polyphase operation. Transformer-core saturation dc ratcheting and cross conduction problems, which frequently plague dc/dc converters, are eliminated. As a result, considerable differences in conduction times between power transistors can be tolerated, as well as some overlap resulting from storage and recovery lags. Typical approaches, circuit variations, and tradeoffs are being presented. Detailed schematic diagrams of actual units for aerospace applications and for industrial uses are discussed in the Appendix.","PeriodicalId":208049,"journal":{"name":"1970 IEEE Power Electronics Specialists Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133313694","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}
引用次数: 2
Special power electronics topics 电力电子专题
1970 IEEE Power Electronics Specialists Conference Pub Date : 1976-06-08 DOI: 10.1109/PESC.1976.7072902
R. Middlebrook
{"title":"Special power electronics topics","authors":"R. Middlebrook","doi":"10.1109/PESC.1976.7072902","DOIUrl":"https://doi.org/10.1109/PESC.1976.7072902","url":null,"abstract":"Session 2 covers a broad spectrum of topics, ranging from circuit analysis methods through new circuit configurations to system applications, and also a component testing technique. In the first paper, Hayner et al. introduce a new pulse-width-modulated dc-to-dc boost converter, the Venable converter, in which current is fed continuously to the output capacitor, thereby alleviating the filtering requirements. In addition, the converter has high efficiency and transfer function properties that do not depend upon the duty ratio. Rostad et al, in the second paper,describe the application of the Venable converter to a series of satellite TWT power processors.","PeriodicalId":208049,"journal":{"name":"1970 IEEE Power Electronics Specialists Conference","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133073400","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}
引用次数: 3
State-plane trajectories used to observe and control the behavior of a voltage step-up DC-DC converter 用于观察和控制电压升压DC-DC变换器行为的状态平面轨迹
1970 IEEE Power Electronics Specialists Conference Pub Date : 1976-06-08 DOI: 10.1109/PESC.1976.7072920
W. Burns, T. Wilson
{"title":"State-plane trajectories used to observe and control the behavior of a voltage step-up DC-DC converter","authors":"W. Burns, T. Wilson","doi":"10.1109/PESC.1976.7072920","DOIUrl":"https://doi.org/10.1109/PESC.1976.7072920","url":null,"abstract":"State-plane analysis techniques are employed to study the voltage step-up energy-storage dc-to-dc converter. Within this framework, an example converter operating under the influence of a constant on-time and a constant frequency controller is examined. Qualitative insight gained through this approach is used to develop a conceptual free-running control law for the voltage step-up converter which can achieve steady-state operation in one on/off cycle of control. Digital computer simulation data is presented to illustrate and verify the theoretical discussions presented.","PeriodicalId":208049,"journal":{"name":"1970 IEEE Power Electronics Specialists Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130583587","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}
引用次数: 6
Analysis technique for a clamped inverter for induction heating 感应加热箝位式逆变器分析技术
1970 IEEE Power Electronics Specialists Conference Pub Date : 1976-06-08 DOI: 10.1109/PESC.1976.7072900
S. Rosenberg, S. Dewan
{"title":"Analysis technique for a clamped inverter for induction heating","authors":"S. Rosenberg, S. Dewan","doi":"10.1109/PESC.1976.7072900","DOIUrl":"https://doi.org/10.1109/PESC.1976.7072900","url":null,"abstract":"A steady state analysis technique is described for a naturally commutated inverter in which the output voltage is undefined during part of each operating cycle. This technique is unique in that it requires the solution of only one first order differential equation and the matching of only one end condition. The solution is valid for any load configuration provided only that its harmonic impedances are defined. This technique is more accurate than conventional harmonic analyses, which assume a defined voltage waveform, and faster and more versatile than traditional techniques which involve a complete solution of fourth order differential equations.","PeriodicalId":208049,"journal":{"name":"1970 IEEE Power Electronics Specialists Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131674001","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}
引用次数: 4
Circuit protection and filtering 电路保护与滤波
1970 IEEE Power Electronics Specialists Conference Pub Date : 1976-06-08 DOI: 10.1109/PESC.1976.7072930
L. Ogborn
{"title":"Circuit protection and filtering","authors":"L. Ogborn","doi":"10.1109/PESC.1976.7072930","DOIUrl":"https://doi.org/10.1109/PESC.1976.7072930","url":null,"abstract":"The final session of the 1976 IEEE Power Electronics Specialists Conference included four papers on various techniques for current limiting or surge voltage reduction in power processing circuits. One paper dealt with the problems of EMI and another discussed power factor and filtering problems The first paper by Wadlington described a current-limiting circuit in a dc to dc converter. Current sensing was provided on the primary side of the transformer. This approach provides protection for the switching transistors from both overload and transient overcurrent conditions and also prevents saturation of the transformer. The circuit was designed to have slow dynamic response near the threshold of current limiting and fast dynamic response for large overload currents.","PeriodicalId":208049,"journal":{"name":"1970 IEEE Power Electronics Specialists Conference","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123393069","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}
引用次数: 0
Overcurrent protection in pulse-width controlled DC-to-DC converters 脉宽控制dc - dc变换器的过流保护
1970 IEEE Power Electronics Specialists Conference Pub Date : 1976-06-08 DOI: 10.1109/PESC.1976.7072931
J. Wadlington
{"title":"Overcurrent protection in pulse-width controlled DC-to-DC converters","authors":"J. Wadlington","doi":"10.1109/PESC.1976.7072931","DOIUrl":"https://doi.org/10.1109/PESC.1976.7072931","url":null,"abstract":"A current-limiting circuit for use in pulse width controlled dc-to-dc converters is described. This circuit ensures reliable converter operation by providing device protection against various transient overcurrent stresses as well as against output overload conditions.","PeriodicalId":208049,"journal":{"name":"1970 IEEE Power Electronics Specialists Conference","volume":"535 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116500243","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}
引用次数: 0
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