Changes between Initial Version and Version 1 of HVPulser_RevA_Testing_2_25_20


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Timestamp:
Feb 28, 2020, 1:09:38 PM (3 years ago)
Author:
Michael
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  • HVPulser_RevA_Testing_2_25_20

    v1 v1  
     1== HIGH VOLTAGE FULL TEST 2/25/20 ==
     2
     3'''Overview:''' For this test the voltage input of the Filament Supply was connect to the output of the HV Pulser. In this test the HV Pulser was tested at multiple operating Frequencies: 1kHz, 10kHz,100kHz, 1MHz, 10MHz, and 100MHz. The operating frequency was adjusted by flipping switches tied to clocking cycles on the FPGA.
     4
     5'''Measurements:''' The ON, POS, and NEG control signals were measured directly from the PMOD connector on the BASYS 3 FPGA. The same system for measurements on the filament supply was used as [http://ohm.bu.edu/trac/edf/wiki/FilamentSupply_RevA_Testing_2_7_20 Filament Supply RevA 2/7/20].
     6
     7'''Results:'''
     8[[BR]]'''1kHz:'''
     9[[BR]][[Image(http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/OnekHz.jpg, 15%, link=[http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/OnekHz.jpg])]]
     10[[BR]]'''10kHz:'''
     11[[BR]][[Image(http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/TenkHz.jpg, 15%, link=[http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/TenkHz.jpg])]]
     12[[BR]]'''100kHz:'''
     13[[BR]][[Image(http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/HundredkHz.jpg, 15%, link=[http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/HundredkHz.jpg])]]
     14[[BR]]'''1MHz:'''
     15[[BR]][[Image(http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/OneMHz.jpg, 15%, link=[http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/OneMHz.jpg])]]
     16[[Image(http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/OneMHz_Rise.jpg, 15%, link=[http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/OneMHz_Rise.jpg])]]
     17[[Image(http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/OneMHz_Fall.jpg, 15%, link=[http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/OneMHz_Fall.jpg])]]
     18[[Image(http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/Drift.jpg, 15%, link=[http://gauss.bu.edu/svn/tof-system/Gallery/2020-02-25/Drift.jpg])]]
     19[[BR]]'''Results:''' As expected the system operates near ideal at frequencies of 1kHz, 10kHz, and 100kHz. At a switching frequency the system begins to deviate from an ideal model. However, the performance at 1Mhz is good. The system has a fall time of about 100ns and an even faster rise time of about 200ns. There is about a only about a 50ns prorogation delay between the signals on the PMOD connector of the FPGA and the full response from the Filament Supply. The Filament supply maintains a current through the load without any measurable delay.