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Design Tips

 


 

 

Design Tips

January 2012
Dr. Ridley demonstrates how the proper configuration of a second-stage output filter can significantly lower the output impedance of your power supply. The correct arrangement of components is essential for optimal
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Date:
01/07/2012
In this article, the loop gain of the five-output forward converter is measured and compared to predictions. The final loop design is compensated with a combination of theoretical design and empirical measurements, resulting in a Type I compensator for optimal results. Measuring the Loop of
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11/01/2011
In this article, Dr. Ridley, the results of measurements of control-to-output characteristics are presented for the multiple-output forward converter. It is shown how to reduce a multiple-output power supply to its equivalent single-output buck converter.
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Date:
10/23/2011

This article continues the series in which Dr. Ridley documents the processes involved in taking a power supply from the initial design to the full-power prototype. Initial testing on a new five-output design shows the cross-regulation achieved. Five-Output Coupled-Inductor Design With
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09/27/2011
This article continues the series in which Dr. Ridley documents the processes involved in taking a power supply from the initial design to the full-power prototype. The second layout of the PC board incorporates significant changes in the power stage, changing the number of outputs from three to five. Some of
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Date:
08/01/2011
This article continues the series in which Dr. Ridley documents the processes involved in taking a power supply from the initial design to the full-power prototype. At this point in the design, the second layout of the PC board is complete, with several significant changes to the power specifications being implemented.
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06/01/2011
Dr. Ridley reminds designers of the crucial importance of measuring impedances of every magnetic element that is placed in your power electronics circuit, regardless of the power level. Three impedance measurements
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Date:
05/10/2011
This article continues the series in which Dr. Ridley documents the processes involved in taking a power supply from the initial design to the full-power prototype. Parts X and XI of this series of articles presented the first seven rules for good PC board layout. Part XII finishes up the design rules for good
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04/15/2011
This article continues the series in which Dr. Ridley documents the processes involved in taking a power supply from the initial design to the full-power prototype. Part X of this series of articles presented the first
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Date:
03/07/2011
This article continues the series in which Dr. Ridley documents the processes involved in taking a power supply from the initial design to the full-power prototype. In Part X, Dr. Ridley presents the rules for good
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Date:
01/19/2011
This article continues the series in which Dr. Ridley documents the processes involved in taking a power supply from the initial design to the full-power prototype. In Part IX, the second-generation of the PC board is described, and a critical area of layout is detailed. Second Generation
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12/01/2010
This article continues the series in which Dr. Ridley documents the prosesses involved in taking a power supply from the initial design to the full-power prototype. In Part VIII, the prototype power supply is connected to a real system load and several issues are encountered.  Power Supply
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Date:
11/01/2010
This article continues the series in which Dr. Ridley documents the processes involved in taking a power supply from the initial design to the full-power prototype. In Part VII, the converter will operate at full power, and cross-regulation of the outputs will be tested. Full Power Testing As
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10/01/2010
This article continues the series in which Dr. Ridley documents the processes involved in taking a power supply from the initial design to the full-power prototype. In part VI, attention is turned to implementing proper
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Date:
09/01/2010
This article continues the series in which Dr. Ridley documents the processes involved in taking a power supply from the initial design to the full-power prototype. In part V, attention is turned to the secondary side
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Date:
08/01/2010
This article continues the series in which Dr. Ridley documents the processes involved in getting a power supply from the initial design to the full-power prototype. In part IV, the transformer and inductor are plugged
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Date:
06/01/2010
In this article, Dr. Ridley continues the topic of frequency response of switching power supplies. Previous articles showed how a frequency response analyzer pulls out a single test frequency from a broad range of noise
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Date:
05/01/2010
This article continues the series in which Dr. Ridley documents the processes involved in getting a power supply from the initial design to the full-power prototype. In part II, we focus on the interface between the power stage and controller, and getting the gate drive working properly. Power
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Date:
04/01/2010
This article begins a new series in which Dr. Ridley shows the multiple testing and revision steps needed to get a power supply from concept to a fully-working prototype.
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Date:
03/01/2010
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