A switching circuit and electronic equipment

Abstract

The invention provides a switching circuit and electronic equipment, relates to the field of electronic technology, and is used for improving the reliability of image processing. The switch circuit includes: a comparison circuit, a first switch circuit, a second switch circuit, a first drive voltage source and a second drive voltage source; the two input terminals of the comparison circuit respectively receive the input voltage and the reference voltage, and the output terminals are respectively connected to the first switch The input end of the circuit is connected to the input end of the second switch circuit; the driving end of the first switching circuit is connected to the first driving voltage source; the driving end of the second switching circuit is connected to the second driving voltage source; the comparison circuit determines whether the input voltage is greater than the reference voltage, When it is determined that the input voltage is greater than the reference voltage, it outputs a high level, otherwise it outputs a low level; when the comparison circuit outputs a high level, the second switch circuit is disconnected, the first switch circuit is turned on and outputs the first driving voltage; when the comparison circuit When outputting low level, the first switch circuit is turned off, the second switch circuit is turned on and outputs the first driving voltage.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a switching circuit and electronic equipment. Background technique [0002] The image sensor is an important part of the camera. It is generally composed of an image sensor single board containing an image sensor chip and a core board containing the main chip. At present, the interface level voltages of most image sensor chips are 1.8V and 2.8V, and the interface level voltages of the main chip are 1.8V and 3.3V. Since the voltage of the interface level is different, it is necessary to convert the voltage of the interface level between the image sensor chip and the main chip. [0003] The prior art provides a method for realizing the voltage conversion of the interface level between the image sensor chip and the main chip. The voltage conversion method defines several pins on the connector between the core board and the image sensor single board. , when the interface level ...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned process of realizing the voltage conversion of the interface level between the image sensor chip and the main chip, during the process of transmitting from the image sensor board to the core board, due to the current on the connection line between the image sensor board and the core board Larger, then the voltage received by the core board has attenuation. When the voltage attenuation is too large, the working voltage of the main chip cannot be guaranteed, which in turn reduces the reliability of image processing.

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