Difference between revisions of "RTP Driver @ CEBAF Meeting February 12, 2019"

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;Agenda
+
==Agenda==
 
:[https://wiki.jlab.org/ciswiki/index.php/CEBAF_laser_table_historical_photos_and_layout_pdf%27s John's archive of laser table layouts]
 
:[https://wiki.jlab.org/ciswiki/index.php/CEBAF_laser_table_historical_photos_and_layout_pdf%27s John's archive of laser table layouts]
 
:Overview and scope of work slides [[media:190212_RTP_Driver.pptx]]
 
:Overview and scope of work slides [[media:190212_RTP_Driver.pptx]]
  
;Additional Materials
+
==Additional Materials==
:Caryn's RTP driver schematics and pics [[media:190212_2ndRTPmtg.pptx]]
+
;Caryn's RTP driver schematics and pics [[media:190212_2ndRTPmtg.pptx]]
  
:John's schematics and text (these should be updated into engineering documentation for the new RTP driver)
+
;John's schematics and text (these should be updated into engineering documentation for the new RTP driver)
 
:: Pockels Cell Dragon Driver 2018 [[media:pockels cell dragon driver 2018.pdf]]
 
:: Pockels Cell Dragon Driver 2018 [[media:pockels cell dragon driver 2018.pdf]]
 
::SFH 4235 [[media:SFH 4235.pdf]]
 
::SFH 4235 [[media:SFH 4235.pdf]]

Revision as of 12:13, 13 February 2019

Agenda

John's archive of laser table layouts
Overview and scope of work slides media:190212_RTP_Driver.pptx

Additional Materials

Caryn's RTP driver schematics and pics media:190212_2ndRTPmtg.pptx
John's schematics and text (these should be updated into engineering documentation for the new RTP driver)
Pockels Cell Dragon Driver 2018 media:pockels cell dragon driver 2018.pdf
SFH 4235 media:SFH 4235.pdf
PC Driver Board media:pcdriver board 2018.pdf
PC Driver Schematic media:pcdriver 2018 schematic.pdf
I have attached more information concerning the parts of this system that I designed.  It would have worked well if I had used a simple 1-shot at IC5C and IC5D instead of trying to play a delay trick with an inverter gate.  This is the section that is supposed to give the brief "high pulse" to the LED's. NOTE:  It was not mentioned before that these cells are not happy when you leave them at a DC high voltage for an extended period of time.  You can apply an AC or flipping DC for 10 years, but if you leave one at DC, it has an ion migration that darkens the cell.  For this reason, you will notice IC6, which turns off all LED's if the helicity rep rate falls below 5 Hz.