Power converters

stability

M T E w o r k s h o p F r i d a y 2 4 S e p t e m b e r 2 0 1 0

2MTE workshop 2010 Freyermuth Pierre

Summary

1. Introduction2. Hands on data

1. Main Power Supply2. Non linear elements 3. Pole face windings

3. Conclusion4. On going work

3MTE workshop 2010 Freyermuth Pierre

1 Introduction

MTE process requires good long term stability of different magnetic elements.

It was observed long period fluctuation on trapping efficiency, such as 10 minutes.

We will have a close look on the behavior of the Main power supply, the Pole face windings, Orbit correction dipoles and non-linear elements.

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2 Hands on data

PR.MPSPR.WFNIPR.WFNPPR.WFWPR.WDNIPR.WDNPPR.WDWPR.W8L

PR.DHZ15-OCPR.DHZ60-OCPR.ODEPR.OMT39PR.OMT55PR.XMT39PR.XMT55

List of elements :

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3 Conclusion

MPS: 0.1 Gauss precision. No visible difference on power consumption over a long period of time.

Non linear elements: at about 10-4A precision. No visible variation over a long period of time.

PFW : at about 10-4A precision, long term stability of 25ppm, except for narrow windings.

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4 On going work

• Analyze low energy quadrupoles behavior.

• Perform FFT comparison and correlation between powers supplies and MTE efficiency.

Thank you for your att enti on.

Please, feel free to bring any questions.

M T E w o r k s h o p F r i d a y 2 4 S e p t e m b e r 2 0 1 0