Objective: Understand the different power supply topologies for use in a variety of dc-dc and ac-dc applications where the voltage of the primary power source is greater than 30V. We examine the trade-offs that help determine the best power supply IC and topology for the system that is being developed.
Length: 120 minutes
Published Date: Aug 01, 05
Step(s) to complete
- View online seminar
- Complete the suggested assignments
- Complete the online test to receive a certificate from Bob Pease
Online Seminar:
High Voltage Switching Power Supply Topologies and Power Management I.C.s
About the Presentor: L. Haachitaba Mweene received the Masters and PhD degrees from the Massachusetts Institute of Technology in Cambridge, MA, in 1988 and 1992. He is widely experienced in the analysis and design of low and high power ac-dc and dc-dc converters. He is currently a Principal Power Applications Engineer at National's Power Applications Design Center (PADC) in Richardson TX.
About the Instructor: L. Haachitaba Mweene received the Masters and PhD degrees from the Massachusetts Institute of Technology in Cambridge, MA, in 1988 and 1992. He is widely experienced in the analysis and design of low and high power ac-dc and dc-dc converters. He is currently a Principal Power Applications Engineer at National's Power Applications Design Center (PADC) in Richardson TX.
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| Suggested Assignments |
Reading Assignments:
Read the following application notes to become familiar with basic power electronics design:
- AN-556 Introduction to power supplies.
- Application Brief 126 High Voltage, single chip DC/DC regulator optimized for flyback, boost, or forward power converter applications.
- App Brief 112 Wide-Input High-Voltage Buck Converter.
For additional information, consult the Knowledge Base using the following queries:
Additional Resources:
To learn how to effectively use National's Power WEBENCH® online design environment to design switching regulators, see the following training material (broken into four parts for convenience:
Research Assignments:
Using the approach described in the Power WEBENCH training material listed above, design a step-down switching regulator for the following criteria: Vin=36-56V, Vout=12V, Iout=2A, using the Power WEBENCH.
- Look at the part that is recommended and the topology of this component.
- Click on Custom SMS7 design.
- Click on Run an electrical simulation for this part.
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