Active quenching and resetting circuit and detection system

A technology for resetting circuits and detection systems, applied in radio wave measurement systems, measurement devices, and re-radiation of electromagnetic waves, etc., can solve the problems of active quenching and long recovery time of reset circuits, and achieve the effect of reducing power consumption

Pending Publication Date: 2022-04-15
NINGBO ABAX SENSING ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide an active quenching and reset circuit and a detection system to solve the problem that the recovery time of the existing active quenching and reset circuit is too long.

Method used

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  • Active quenching and resetting circuit and detection system
  • Active quenching and resetting circuit and detection system
  • Active quenching and resetting circuit and detection system

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Embodiment Construction

[0025] In order to make the objects, technical solutions, and advantages of the present application, the technical solutions in the present application embodiment will be described in connext of the present application embodiment, and It is a part of the present application, not all of the embodiments. Components of the present application embodiments described and illustrated in the drawings herein can be arranged and designed in a variety of different configurations.

[0026] Thus, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but only the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained without creative labor are not made in the pre-creative labor premises.

[0027] It should be noted that similar reference numerals and letters represent the similar items in the foll...

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Abstract

The invention provides an active quenching and resetting circuit, and the circuit is characterized in that the circuit comprises a single photon avalanche diode which is used for receiving an optical signal and generating an avalanche current; the initialization module is used for initializing the single photon avalanche diode; the reset module is used for resetting the single photon avalanche diode; the clamping module is used for clamping the single photon avalanche diode; and the threshold value detection unit is used for detecting the cathode voltage of the single photon avalanche diode, feeding back a detected signal to the reset module and controlling the starting of the reset module. The SPAD has the beneficial effects that the SPAD can be rapidly quenched and reset by setting the threshold detection unit and adjusting the reset time of the reset module, and when the threshold detection module detects that the voltage is reduced below the threshold, the reset module is controlled to reset, so that quenching and reset can be adaptively adjusted.

Description

Technical field [0001] The present application relates to the field of active quenching and reset circuits, in particular to an active quenching and reset circuit and detection system. Background technique [0002] The flying time ranging method (TOF) is the principle of which is to continuously transmit light pulses to the target, then use the sensor to receive light returned from the object, by detecting the light pulse flight (round trip) time to obtain the target distance. . [0003] Direct Time of Flight, DTOF is one of TOF, DTOF technology directly obtains the target distance by calculating the emission and reception time of the optical pulse, has a simple principle, good signal and noise, high sensitivity, accuracy High advantages have received more and more extensive attention. [0004] Generally, in some DTOF ranging applications, an array of sensing avalanche diodes (Single Photon Avalanche Diode, Single, Single Photon) is performed using a photodetector array including...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/10G01S7/483
Inventor 雷述宇
Owner NINGBO ABAX SENSING ELECTRONICS TECH CO LTD
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