A regulated high negative voltage generator for single-photon avalanche photodiodes

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A regulated high negative voltage generator for single-photon avalanche photodiodes

Deng, Shijie; Lewis, Liam; Morrison, Alan P.
Date: 2017-09-28
Copyright: © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Related: https://ieeexplore.ieee.org/document/8052294/
Citation: Deng, S., Lewis, L. and Morrison, A. P. (2017) 'A Regulated High Negative Voltage Generator for Single-Photon Avalanche Photodiodes'. 2017 New Generation of CAS (NGCAS), Genova, Italy, 6-9 September, pp. 161-164. doi: 10.1109/NGCAS.2017.24
Published Version: 10.1109/NGCAS.2017.24

Abstract:

In this work, a regulated high negative voltage generator for biasing single-photon avalanche photodiodes (SPAD) was developed. The circuit provides up to -70 V from a positive voltage source. This circuit allows users to control the negative output voltage using a positive voltage rail, thus eliminating the requirement of a negative voltage for the negative voltage control. This approach simplifies the setting of the output and facilitates integration in miniaturized photon counting systems. The testing on a fabricated PCB of this circuit show that the output voltage can be accurately controlled up to -70 V with ripples of less than 80 mV. A SPAD based experimental setup was also built and the experimental results show that the circuit is able to maintain a stable bias voltage for a planar SPAD at both low and high counting rates.

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