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Level converting method and level converting system

A level and voltage level technology, applied in the field of level conversion, can solve the problems of complex implementation and high cost, and achieve the effect of simple implementation, low cost and high cost of solution

Active Publication Date: 2013-03-06
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a level conversion method and system to solve the problem that in the prior art only one or two levels need to be realized because the level conversion can only be realized through a high-cost and complex chip. When converting, there are high costs and complex technical problems

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  • Level converting method and level converting system

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Embodiment Construction

[0067] The main realization principles, specific implementation methods and corresponding beneficial effects that can be achieved of the technical solutions of the embodiments of the present application will be described in detail below in conjunction with each accompanying drawing.

[0068] Please refer to figure 1 , is a structural diagram of the level conversion system in the embodiment of the present application.

[0069] A level shifting system comprising:

[0070] The control voltage unit 10 is used to provide a control voltage; the level conversion unit 20 includes three ports: a first port 30, through which the control voltage unit 10 is connected to the level conversion unit 20 . The second port 40 is used to input the first voltage level signal through the second port 40 ; the third port 50 is used to output the second voltage level signal through the third port 50 .

[0071] The level conversion unit 20 converts the first voltage level signal input from the second...

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Abstract

The invention provides a level converting method and a level converting system. An N channel field-effect transistor MOS (Metal Oxide Semiconductor) internally integrated with a diode D is used as a level converter 201, a first voltage level signal input by a second port 40 is converted into a second voltage level signal by the level converter 201 based on a voltage provided by a control voltage unit 10, the second voltage level signal is output by a third port 50, and thus, the functions of converting a low voltage level signal into a high voltage level signal and converting the high voltage level signal into the low voltage level signal are realized. According to the level converting system provided by the invention, the structure is simple, a special direction control pin is unnecessary, the cost is low, and a well use effect can be achieved.

Description

technical field [0001] The present application relates to the field of electronic communication, in particular to a method and system for level conversion. Background technique [0002] With the continuous development of modern technology, the development of electronic products is getting faster and faster. Almost all electronic chips are developing towards the unified direction of low power consumption and low voltage type. The power supply voltage of digital integrated circuits inside electronic products has changed from a few years ago The current 5V has been developed to 3.3V, 2.85V, 2.6V and even 1.8V. In this way, digital integrated circuits supported by different voltages have appeared on the market. The circuit disappears. On the contrary, digital integrated circuits with various power supply specifications coexist in the market, that is, the IO levels of each digital integrated circuit are different. [0003] And when the IO levels of the digital integrated circuit...

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Application Information

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IPC IPC(8): H03K19/0175
CPCH03K19/017518H03K19/0175
Inventor 马清
Owner ZTE CORP