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Hi Don,</div>
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This week I am setting up a cRIO test stand at my desk to collect data while testing the supply.</div>
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The test stand will supply the control voltage (0 - 10) to the supply and measure the output voltage of the supply.</div>
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We will use two of the cartridge heaters in series as the load. <br>
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We will also measure the noise on the line and have that evaluated by DSG engineering.
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I'll send you an update in a few days and set a meeting for sometime next week.</div>
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<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
Marc<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Donald Jones <jonesdc@jlab.org><br>
<b>Sent:</b> Tuesday, May 16, 2023 1:54 PM<br>
<b>To:</b> Bogdan Wojtsekhowski <bogdanw@jlab.org>; shahinya@jlab.org <shahinya@jlab.org>; Marc Mcmullen <mcmullen@jlab.org><br>
<b>Subject:</b> ECal heater zoning </font>
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Hi Folks,</div>
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I would like to have a meeting to discuss zoning and power issues for ECal. </div>
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Marc, do you have any conclusions yet on the feasibility of the 480W LED driver power supply? In the attached slides I propose two zoning solutions: one using 49 zones with 480W 10A power supplies (like the one I gave you) and another 40 zone solution using
similar supplies but with 600W 12.5A output.</div>
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If you conclude these power supplies can work, then I will set up a meeting to discuss zoning and control options with the broader group.</div>
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-Don</div>
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Donald Jones</div>
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Hall A/C Staff Scientist</div>
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Jefferson Lab</div>
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Newport News, VA</div>
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