By Topic

Applied Power Electronics Conference and Exposition, 1995. APEC '95. Conference Proceedings 1995., Tenth Annual

Date 5-9 March 1995

Go

Filter Results

Displaying Results 1 - 25 of 76
  • Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95

    Publication Year: 1995
    Request permission for commercial reuse | PDF file iconPDF (513 KB)
    Freely Available from IEEE
  • Design considerations for charge equalization of an electric vehicle battery system

    Publication Year: 1995, Page(s):96 - 103 vol.1
    Cited by:  Papers (22)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (676 KB)

    Charge equalization for series connected battery strings has important ramifications on battery life. It enhances the uniformity of the battery cells and hence improves the life of the battery as a whole. A new charge equalization technique for a series string of battery cells has been recently proposed by the authors. The basic technique utilizes a simple isolated DC-to-DC power converter with a ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The value of distributed power

    Publication Year: 1995, Page(s):104 - 110 vol.1
    Cited by:  Papers (11)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    Distributed power architecture advantages span from improvements in technical performance to substantially shorter development time to market. Although these are valuable attributes, none is more important than lower cost. Seldom are other features so predominant that they would command a sizable price differential. So, although the paper discusses in some detail the value of improved performance ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Quasi-behavioral model of a voltage fed inverter suitable for controller development

    Publication Year: 1995, Page(s):176 - 182 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    This paper develops a quasi-behavioral model of a voltage fed inverter that includes the effects of inverter deadtime, parasitic capacitances, flyback diode conduction, and switching and conduction losses. Detailed cycle-by-cycle waveforms are generated using discrete state machines, negating the need to solve device-level or idealized circuit equations. The inverter model is constructed in the co... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Power in the year 2000

    Publication Year: 1995, Page(s):6 - 11 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    This paper is intended to summarize an Ad Hoc workshop held in Orlando, Florida on February 12, 1994. The subject of the workshop was “Power Conversion Technology in the Year 2000”. The object of the workshop was for a group of knowledgeable individuals to project trends and needs for commercial power products (computing, communications, and general electronics). The areas of power tha... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • How to select DC-DC converters

    Publication Year: 1995, Page(s):111 - 117 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (636 KB)

    Standard, “off the shelf” DC-DC power converters are growing in popularity. Their general ease of use reduces risk in new product development. However, specifying a power converter for a given application requires more than browsing a supplier's selection guide. This paper is an introduction to often overlooked details that can make a significant performance difference in the end appli... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Electromagnetic models for slotless PM synchronous motor drives

    Publication Year: 1995, Page(s):367 - 377 vol.1
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (720 KB)

    A model defines the relationships amongst the parameters which govern the behavior of a system over the operating range of interest. This paper presents magnetic, electrical and electro-mechanical models to support the design of slotless, star-wound, permanent-magnet synchronous motor drives. Modeling assumptions and limitations are discussed. The validity of these models, under the given assumpti... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Application of the current-injected modelling approach to quasi-resonant converters

    Publication Year: 1995, Page(s):516 - 522 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    Until now, the injected current method has been applied only to DC-DC power converters. This paper describes how this method can be extended to quasi-resonant power converters. It is shown that quasi-resonant models are easy to obtain since they are derived directly from the PWM power converter models. These new models result in a unified block diagram from which zero voltage switching or zero cur... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A 100 watt power supply using ZVS boost converter

    Publication Year: 1995, Page(s):496 - 502 vol.1
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    This paper presents the analysis, design and experimental data of a power supply based on the boost power converter topology using the zero-voltage switching technique. The topology uses two switches. Zero-voltage turn-on is accomplished on both switches with the capacitor across only one switch. The converter operates at 100 kHz. This power converter has a wide range of zero-voltage switching cap... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • DC-DC zero-voltage-transition converter with PWM control and low stresses on switches

    Publication Year: 1995, Page(s):523 - 529 vol.1
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    A new type of DC-DC power converter, which achieves soft-switching for all the active and passive switches, is presented. Its basic structure is that of a quasi-resonant power converter, with an additional two active switches and four diodes. The resonant capacitors are not discrete elements, the parasitic capacitances of the MOSFETs play the role of resonant capacitors. All switches are subjected... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimization of the auxiliary switch components in a flying capacitor ZVS PWM converters

    Publication Year: 1995, Page(s):503 - 509 vol.1
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    A family of PWM converters with an Auxiliary Switch Assisted Soft Switcher (AASS) is studied. The basic AASS cell includes an inductor connected in series with the auxiliary switch of the converter, a capacitor connected in parallel with the main switch diode or main diode of the converter and an additional capacitor (designated a `flying' capacitor) connected through an auxiliary diode parallel t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Customer delight: mission impossible or mission imperative?

    Publication Year: 1995, Page(s):3 - 5 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    Customers are only one link in the total process chain. There are powerful market place dynamics that cause customer behavior and expectations to change over time. The purpose of this paper is to describe the drivers that are changing the traditional business model so that power electronics providers can be pro-active in adapting to the market requirements of the future View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Accelerated tolerance analysis of power-supply protection circuits using simulation

    Publication Year: 1995, Page(s):169 - 175 vol.1
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    Tolerance analysis of alarm and protection circuits is a key problem in achieving robust design of power supplies. This paper presents improved simulation methods for analyzing the effects of component tolerances in such circuits. Important component modeling considerations are also discussed View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Benchmarking DC-DC converters for world class performance

    Publication Year: 1995, Page(s):53 - 59 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    Benchmarking has become an established industrial service, and business practice. The benchmarking activity presented in this paper focused on determining the best-in-class and worst-in-class for the areas of performance, packaging, reliability, and cost for power modules from several vendors. Critical success factors mere developed for all areas such as normalized FITS/part, performance efficienc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A novel forward configuration for DC-DC application: built-in input filter forward converter (BIFFC)

    Publication Year: 1995, Page(s):43 - 49 vol.1
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    Employing the transformer leakage inductance and two cross-coupled capacitors, a built-in input filter forward converter (BIFFC) configuration is proposed. Without adding extra components, this configuration can perform core reset, turn-off snubber, voltage-clamped and input filter functions. Consequently, low voltage stress, high efficiency performance and reduced input current ripple can be achi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The wireless industry-a PSMA market study

    Publication Year: 1995, Page(s):227 - 233 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    Wireless technology will play a significant role in the development of the “information superhighway”. Most industry forecasts see the wireless market continuing to grow at it's current rate over the next several years with some predicting that half of all communications will involve a wireless component within the next ten years. This rapid growth within the wireless telecom market se... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Visual control of power electronics manufacturing

    Publication Year: 1995, Page(s):18 - 23 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    Customer demanded intervals measured in days rather than weeks, new technology, and JIT manufacturing have all contributed to an increasingly complex manufacturing system in the power electronics industry. Leading manufacturers around the world are introducing visual controls to counteract this trend. These controls provide a place for everything and make product flow, operations standards and pro... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Designing product for the environment

    Publication Year: 1995, Page(s):76 - 77 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    A new facet to product design is emerging, called design for end-of-life. Design for end-of-life is the consideration during the design process for the cost effective disposition of a product when it is no longer needed or wanted. We are familiar with DFM (design for manufacturing) and DFA (design for assembly), but these activities, if not done properly, can be in conflict with design for end-of-... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Designing HVPS electronic modules for manufacturability

    Publication Year: 1995, Page(s):66 - 71 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    High voltage power supplies (HVPS) that are designed, developed, and manufactured for aerospace, commercial, industrial, and military applications require the use of highly reliable components. In many (if not all) designs, the high voltage circuits or networks that include these components can be assembled into highly reliable high voltage electronic modules. The use of concurrent engineering met... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design of a ZVS PWM inverter for a brushless DC motor in an EMA application

    Publication Year: 1995, Page(s):399 - 405 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    Electromechanical actuators are being examined as a replacement for the hydraulic systems used in thrust vector control and propellant control valves on space vehicles. The flow of energy from the source to the load in these high power electromechanical systems is controlled via a three-phase inverter. This paper presents an investigation into and design of a zero-voltage switched three-phase inve... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • New approach for high performance PMSM drives without rotational position sensors

    Publication Year: 1995, Page(s):381 - 386 vol.1
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    A new approach to the position sensor elimination of the PMSM drives is presented in this paper. With the help of the modern drive technique, the actual rotor position as well as the machine speed can be estimated strictly even in the transient state using the `quasi-steady-state' operation concepts. Due to the angle modification scheme with error tracking fashion, the sensorless drive system has ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A new current-fed isolated PWM DC-DC converter

    Publication Year: 1995, Page(s):290 - 296 vol.1
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    This paper introduces a new DC-DC power converter circuit whose features are as follows: two active switches gated in a complementary and asymmetrical way, connected to the same ground; current-fed, where a boost inductor provides inherent current protection; isolation by a high frequency transformer; and purely capacitive output filter. Circuit operation, theoretical analysis, design procedure an... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis and design of an active ripple filter for DC-DC applications

    Publication Year: 1995, Page(s):267 - 273 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    When low ripple is required from a DC-DC converter, active filters offer an alternative to passive LC and coupled inductor filters. A simple experimental active ripple filter is presented, which employs a pair of current transformers as sensors for feedforward and feedback control and two MOSFETs as cancellation current drivers. Measurements demonstrate good ripple attenuation: more than 70 dB at ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • New opportunistic marketing strategy in a changed, complex and paradoxical power supply environment

    Publication Year: 1995, Page(s):234 - 244 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    This paper tracks the history of the merchant power supply industry over a span of ten years-from 1984 to 1993-to show that business of power supplies has grown significantly and changed profoundly. Over these years, the merchant market has grown because of the changing nature of equipment market and companies who make them. The growth has been primarily in custom AC/DC switchers and standard DC/D... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Effect of PWM inverters on AC motor bearing currents and shaft voltages

    Publication Year: 1995, Page(s):24 - 33 vol.1
    Cited by:  Papers (61)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    This paper investigates AC induction motor shaft voltage problems, current flow through motor bearings and electric discharge current problems within bearings when operated under both pure sinewave and pulse width modulated (PWM) inverter sources. Experience suggests that PWM voltage sources with steep wavefronts especially increase the magnitude of the above electrical problems, leading to motor ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.