Bias circuit, bias voltage regulation circuit, bias voltage regulation method and bias voltage regulation device

Abstract

The invention discloses a bias circuit, a bias voltage regulation circuit, a bias voltage regulation method and a bias voltage regulation device. The bias circuit comprises a first constant voltage, a second constant voltage, a digital-to-analog converter, a multi-way switch and a plurality of holding circuits, wherein the digital-to-analog converter, the multi-way switch and the plurality of holding circuits are bridged between the first constant voltage and the second constant voltage, the input end of the digital-to-analog converter and the control end of the multi-way switch are respectively connected with a control bus, the output end of the digital-to-analog converter is connected with the input end of the multi-way switch, a plurality of output ends of the multi-way switch are respectively connected with the plurality of holding circuits, and the input end and the output end of each holding circuit respectively take thea first constant voltage and a grounding end as reference voltages; and the holding circuit can output corresponding bias voltage according to a voltage value input into the multi-way switch. According to the circuit, the output bias voltage can be independently adjusted for each holding circuit, a bias power supply module does not need to be independently provided, the circuit complexity is effectively reduced, the circuit size is reduced, and the extra cost is reduced.

Description

technical field [0001] The invention relates to the technical field of photoelectric sensors, in particular to a bias voltage circuit, a bias voltage adjustment circuit, a bias voltage adjustment method, a device, a storage medium and computer equipment. Background technique [0002] A semiconductor optoelectronic device refers to a semiconductor device that can convert light and electricity into each other. In the actual application process of semiconductor optoelectronic devices, their gain is easily affected by the bias voltage. At the same time, when using semiconductor optoelectronic devices to measure optical signals, the collected energy data and time data need to be highly accurate. Therefore, in product design, it is required that the signals of each semiconductor optoelectronic device in the photosensor array be consistent. However, due to the discrete nature of the semiconductor process, even under the same bias voltage, the signal gain of each semiconductor opto...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present application provides a bias voltage circuit, a bias voltage adjustment circuit, a bias voltage adjustment method, a device, a storage medium, and a computer device, the main purpose of which is to solve the problem that the bias voltage of a semiconductor optoelectronic device cannot be independently set, and The technical problems of high complexity of bias circuit, bulky circuit and high additional cost

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