U -- A SHORT COURSE AT FOR THE ENGINEERING AND SCIENTIFIC EMPLOYEES ENTITLED "MODERN POWER CONVERSION DESIGN TECHNIQUES

Notice Date

May 15, 2001

Contracting Office

NASA/Glenn Research Center, 21000 Brookpark Road, Cleveland, OH 44135

ZIP Code

44135

Solicitation Number

RFQ-3-176137

Response Due

May 22, 2001

Point of Contact

Kathleen A. Webb, Purchasing Agent, Phone (216) 433-6665, Fax (216) 433-2480, Email Kathleen.A.Webb@grc.nasa.gov

E-Mail Address

Kathleen A. Webb (Kathleen.A.Webb@grc.nasa.gov)

Description

NASA/GRC plans to issue a Request for Quotation 3-176137 for A SHORT COURSE FOR THE ENGINEERING AND SCIENTIFIC EMPLOYEES ENTITLED "MODERN POWER CONVERSION DESIGN TECHNIQUES PER THE FOLLOWING: STATEMENT OF WORK PR# 176137 COURSE: Modern Power Conversion Design Techniques Lecture Type Class SUPPLIER: Company teaching class will supply all binders and books needed for class DATE: July 9-13, 2001 TIME: 8:30 a.m. -- 5:00 p.m. LOCATION: ACS Training Center (formerly Intellisource) Tech Park 1 Flex Building, Room 308 2100 Apollo Drive Brook Park, OH 44142 TARGET AUDIENCE: Engineers and Scientists SLOTS: 20 COURSE DESCRIPTION: SEGMENT ONE SWITCHING REGULATOR DESIGN AND ANALYSIS Monday and Tuesday The first course segment is devoted to a complete exposition of the design and analysis of high-frequency switchmode converter circuits and systems for power processing applications. Conventional pulse-width-modulated, soft-switched and resonant topologies are included. Following a review of basic converter topologies, modern analysis methods are derived and applied to several converter design examples to show how optimum closed-loop performance can be achieved. Low-cost, easy-to-use, PC-based computer design aids, that help assure customer requirements are met prior to expensive hardware implementation, are presented. Detailed design algorithms are derived and applied to practical power factor correction circuits and minimum-size power line EMI filter examples. This course segment concludes with a review of the design and analysis procedures of modern power magnetic components. Topics to be covered in this segment of the course include: 7 Introduction to switching regulation, 7 Practical swithchmode circuits and system design constraints, 7 Introduction to the fundamentals of power magnetic design, Active power factor correction techniques, 7 Comparisons of PWM, quasi-resonant, resonant and resonant-Transition-switching (soft-switching) topologies, 7 Small-signal modeling methods for swithchmode circuits, 7 Voltage, peak current and average current control laws, 7 Compensation techniques for feedback control circuits, 7 EMI filter configurations and minimum-size design techniques. SEGMENT TWO PLANAR AND INTEGRATED MAGNETICS DESIGN Wednesday Segment Two of the course is concerned with state-of-the-art magnetics design techniques for modern DC power converters whereby transformer and inductive components can be combined on SINGLE core structures. These concepts were first introduced by the instructor of this segment and represent design methods that can reduce the cost, size and weight of magnetic components. Also, covered are modern planar magnetics concepts, practical design approaches, and new multi-chambered arrangements. Design topics to be covered in this second segment of the course include: 7 Magnetic core structures for integrated-magnetic systems, 7 Coupled-inductor concepts and application in buck and boost-derived converters, 7 Basics of planar winding designs, 7 Planar core design procedures and examples, 7 Analyzing complex coupled-inductor assemblies, 7 New planar constructions for magnetic components, 7 Design examples of integrated-magnetic and planar magnetics, 7 New integrated-magnetic pre- and post-converted circuit designs, 7 Cost-saving tow-bobbin and planar integrated-magnetic structures. SEGMENT THREE MAGNETICS DESIGN FOR HIGH FREQUENCY APPLICATIONS Thursday and Friday The last course segment deals with topics associated with advanced design techniques for high-frequency linear power magnetics. The focus of this presentation is on an intuitive but detailed understanding of how transformers and inductors work at high frequencies, including leakage inductance causes/effects, fringing fields, parasitic capacitances and various effects associated with eddy currents. This understanding will aid an engineer in the synthesis of suitable power magnetics design without extensive time spent in "cut and try" design cycles, as opposed to heavily analytical approaches, which often provide little practical design visibility. Topics to be covered in this segment of the course include: 7 Power magnetics design optimization in the low, medium and high power and frequency domains, 7 Non-conventional methods for component sizing and scaling, Low-profile HF magnetics design construction alternatives, 7 Designing power magnetics for low EMI characteristics, 7 Skin and proximity effects in windings and shields, 7 Projecting losses under non-sinusoidal current conditions, 7 Minimum-loss winding construction methods, 7 Ideal and non-ideal planar winding types and characteristics, 7 Power inductor winding losses caused by core air gaps. This procurement is being conducted under the Simplified Acquisition Procedures (SAP). NASA/GRC intends to purchase the items from e/j BLOOM Associates Inc., Educational Division, 115 Duran Drive, San Rafael, CA 94903-2317; the packaging of this particular seminar covers the full range of theory and practice, including magnetics, and is focused in specific areas of interest to the type of people on the lab who do Power Conversion Design, or specify power converters. We receive announcements of courses in this general area from time to time, and review them to dertermine which is most in-line with or needs. In this case, the instructor in the Switching Regulator Design and Analysis Segment has experience unique to our applications, and has, in fact, consulted with one of our contractors in a difficult problem area and provided excellent recommendations. His unique mix of both academic and industrial experience make him an outstanding candidate to present them material in a manner relevant to our needs. One of the members of the Electrical Systems Development Branch has participated in a number of e/j Bloom Associates,Inc. courses and found them to provide excellent state-of-the art material in an understandable, relevant manner. The Government intends to acquire a commercial item using FAR Part 12.g Interested organizations may submit their capabilities and qualifications to perform the effort in writing to the identified point of contact not later than 4:30 p.m. local time on 5/22/01. Such capabilities/qualifications will be evaluated solely for the purpose of determining whether or not to conduct this procurement on a competitive basis. A determination by the Government not to compete this proposed effort on a full and open competition basis, based upon responses to this notice is solely within the discretion of the government. Oral communications are not acceptable in response to this notice. All responsible sources may submit an offer which shall be considered by the agency. An Ombudsman has been appointed. See NASA Specific Note "B". Any referenced notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nasanote.html

Web Link

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Record

Loren Data Corp. 20010516/USOL002.HTM (D-134 SN50M0H6)