Supercharge Your Innovation With Domain-Expert AI Agents!

Design method of Geiger mode angular position digitizer (APD) passive quenching and recovering integrated circuit

A quenching circuit and integrated circuit technology, applied in the direction of calculation, electrical digital data processing, special data processing applications, etc., to achieve the effect of accurate design process, increased success probability, and improved performance

Inactive Publication Date: 2011-09-14
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a kind of " Geiger " mode APD passive quenching and the design method of restoration integrated circuit, solve the technical deficiency existing in the existing design method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Design method of Geiger mode angular position digitizer (APD) passive quenching and recovering integrated circuit
  • Design method of Geiger mode angular position digitizer (APD) passive quenching and recovering integrated circuit
  • Design method of Geiger mode angular position digitizer (APD) passive quenching and recovering integrated circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Taking the 0.5um standard CMOS process as an example, design a passive quenching and recovery integrated circuit for a "Geiger" mode APD device with an avalanche voltage of 20V, a saturation voltage of 24.5V, a saturated avalanche current of 10mA, and a junction capacitance of 1pf. The design scheme is as follows:

[0031] 1) First build in the laboratory such as image 3 The large resistor passive quenching circuit shown (where V A is the total voltage of the circuit, and its value is greater than the avalanche voltage V of the APD device break ; L It is a large resistance for quenching, its value is 220K ohms, R S In order to read the small resistance of the signal, it is 50 ohms), and gradually increase the power supply V A value, observe the acquisition R S The output of the oscilloscope varies on voltage, when the output of the oscilloscope changes from nothing to a moment V A The value is the avalanche voltage value of the APD device (20V at this time), cont...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a design method of a Geiger mode angular position digitizer (APD) passive quenching and recovering integrated circuit. Based on actual measurement characteristics of a target APD, the invention abstracts an I-V relation, thereby establishing a nonlinear module for expressing the actual measurement characteristics of the target APD. Meanwhile, a fluidic switch is added in adesign process for judging the snowslide quenching time and controlling the snowslide quenching process, and the problem that whole nonlinear I-V characteristics and dynamic conducting resistances ofthe target APD can not fully considered so that the snowslide quenching time can not be accurately judged in the traditional design is solved, thereby improving the design precision and the design efficiency of the Geiger mode APD passive quenching and recovering integrated circuit, enhancing the success ratio of the passive quenching and recovering integrated circuit, and lowering the design cost and the manufacture cost.

Description

technical field [0001] The present invention relates to integrated circuit design technology, specifically a kind of " Geiger " mode avalanche photodiode (Avalanche Photon Diode-APD) passive quenching and the design method of recovery integrated circuit, it is used as " Geiger " mode APD device integrated circuit level Design of passive quenching and recovery circuits. Background technique [0002] The avalanche photodiode (APD) is a primary detector capable of extremely faint light detection. In the "Geiger" working mode, due to the high avalanche gain of the device, a single incident photon may cause an avalanche pulse output, so the avalanche photodiode working in the "Geiger" mode can realize single photon detection. The so-called "Geiger" mode, that is, the APD is biased at an operating point higher than its avalanche voltage, and once a photon or thermally excited carrier arrives to trigger an avalanche, a current is generated in the circuit. The rising edge of the c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G01R31/26
CPCH04N25/773
Inventor 周扬陈永平陈世军刘强白宗杰邓若汉严奕
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com