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Power Supplies at ESA 2025

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Tom Eichlersmith edited this page Dec 6, 2025 · 2 revisions

HCal LV

NOTE: Always check that the HV supply output is OFF, before turning off LV!

Read status with: python /u1/ewallin/HCalPSControl/ps_control.py -serial AL05K8T0 -vid_pid 0403:6001 --read

Note that the voltage SHOULD read a bit more than 12 V, to compensate for losses in the cable.

To enable output: python /u1/ewallin/HCalPSControl/ps_control.py -serial AL05K8T0 -vid_pid 0403:6001 --output True

To disable output: python /u1/ewallin/HCalPSControl/ps_control.py -serial AL05K8T0 -vid_pid 0403:6001 --output False

HCal HV

NOTE: Never enable the HV output before the LV!

python /u1/ewallin/HCalPSControl/ps_control.py -serial 0000:00:14.0 -vid_pid 067b:2303 --read

To enable output: python /u1/ewallin/HCalPSControl/ps_control.py -serial 0000:00:14.0 -vid_pid 067b:2303 --output True

To disable output: python /u1/ewallin/HCalPSControl/ps_control.py -serial 0000:00:14.0 -vid_pid 067b:2303 --output False

ECal

The ECal power is supplied by an MPOD Crate similar to the Tracker. Similar to HCal, we have developed a Python script that can be run to control the MPOD power. tomeichlersmith/mpod_control

Use like:

# see current configuration and "measurement" of output voltage/current
python3 mpod_control.py status lv-ecal.json 
# turn ecal on
python3 mpod_control.py enable lv-ecal.json
# turn ecal off
python3 mpod_control.py disable lv-ecal.json

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