CERN Accelerating science

ATLAS Note
Report number	ATL-HGTD-PROC-2023-004
Title	HGTD DC/DC Converter in Low Temperature and Magnetic Field Operation
Author(s)	Zhai, Mingjie (Chinese Academy of Sciences (CN)) ; Zhang, Jie (Chinese Academy of Sciences (CN)) ; Xu, Da (Chinese Academy of Sciences (CN)) ; Ge, Zhenwu (Nanjing University (CN)) ; Barreiro Guimaraes Da Costa, Joao (Chinese Academy of Sciences (CN)) ; Zhuang, Xuai (Chinese Academy of Sciences (CN))
Corporate Author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Publication	2024
Imprint	30 Oct 2023
Number of pages	7
In:	JINST 19 (2024) C02006
In:	Topical Workshop on Electronics for Particle Physics 2023 (TWEPP 2023), Geremeas, Sardinia, Italy, 1 - 6 Oct 2023, pp.C02006
DOI	10.1088/1748-0221/19/02/C02006
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	Analogue electronic circuits ; Timing detectors ; Voltage distributions
Abstract	The BPOL12V is a DC/DC converter designed to supply power to the High Granularity Timing Detector (HGTD) as part of the ATLAS Phase II upgrade project. The HGTD operates in an environment characterized by low temperatures and a magnetic field. Ensuring the reliable functionality of the BPOL12V under such conditions is of utmost importance. This paper outlines a series of functionality tests for the BPOL12V, including efficiency, ripple, and rise/fall edge assessments across various operational scenarios. The performance of the BPOL12V consistently meets the requirements of the HGTD, whether it operates in low temperatures down to -30 $^{\circ}$C or in the presence of a 0.4 T magnetic field.

Corresponding record in: Inspire