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A switch circuit device and a drive circuit

A technology for driving circuits and switching devices, applied in the input and output of or signals, and data fields, which can solve the problems of increasing circuit layout area, cost, and defects in antistatic ability, and achieve the effect of enhancing conduction uniformity and fast response speed

Active Publication Date: 2018-03-02
WUHAN XINXIN SEMICON MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this technical solution is that the multi-level inverter will also increase the area and cost of more circuit layouts. In addition, the antistatic ability also has the above-mentioned defects.

Method used

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  • A switch circuit device and a drive circuit
  • A switch circuit device and a drive circuit
  • A switch circuit device and a drive circuit

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Embodiment Construction

[0054] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0056] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0057] The present invention will be further described below in conjunction with the accompanying drawings and s...

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Abstract

The present invention relates to the technical field of data or signal input and output, and in particular to a switch circuit device and a drive circuit. The switch circuit device includes a first switch device and a second switch device. The first switch device includes a first switch and a second switch device. Two switches, the conduction time of the first switch is less than the conduction time of the second switch; the second switch device includes a third switch and a fourth switch, the conduction time of the third switch is less than the conduction time of the fourth switch; using the first switch and the fourth switch The fast response characteristic of the three switches realizes the fast response of the input and output devices. The first switch and the third switch can flow relatively large current due to the technical characteristics, which can make the input and output devices obtain a relatively large driving current. The present invention can solve the technical problem by only adding the first switch and the third switch, without occupying too much layout area, and the cost is accountable. At the same time, the first switch and the third switch with better electrostatic protection ability are used to enhance the conduction of the drive circuit Uniformity.

Description

technical field [0001] The invention relates to the technical field of data or signal input and output, and in particular to a switch circuit device and a drive circuit. Background technique [0002] I / O (abbreviation for input / output, that is, input and output ports) circuit is an indispensable circuit unit in the electronic system. Each device in the electronic system will have a dedicated I / O circuit. Each I / O circuit Each has a matching I / O address to handle its own input and output information. The I / O circuit is the connection and data exchange between the control unit and the external device and memory, which need to be realized through the interface device. Usually, the I / O circuit needs an I / O drive circuit during the design process. The drive circuit is used to provide a To meet the driving current of the I / O circuit. Such as figure 1 As shown, in a common I / O driving circuit, in order to obtain a larger driving current, the first PMOS and the first NMOS of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/158
Inventor 单毅
Owner WUHAN XINXIN SEMICON MFG CO LTD
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