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
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.
Morrison, Alan P.; Deng, Shijie(Institution of Engineering and Technology, IET, 2018-04-12)
Dual single-photon avalanche photodiodes (SPADs) integrated on the same chip enable the effective compensation of dark count rate (DCR) in the SPAD and also the real-time monitoring of the chip temperature. In the design, ...
Deng, Shijie; Morrison, Alan P.(Institute of Electrical and Electronics Engineers (IEEE), 2012-06)
A charge pump circuit operating from a single-sided CMOS supply, capable of biasing avalanche photodiodes up to 40 V with load currents in the mA range is presented. This circuit introduces new design elements that overcome ...
Deng, Shijie; Morrison, Alan P.(Institution of Engineering and Technology, IET, 2011-02-24)
A bias circuit for avalanche photodiodes (APDs) based on a dual-rail charge pump configuration operating from a 5 V supply that is capable of supplying a bias voltage in excess of 50 V is presented. For shallow-junction ...
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