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Logic level generation circuit and generation method

A logic level and generation circuit technology, applied in the direction of single output arrangement, etc., can solve the problem of non-existence of logic level generation circuit

Inactive Publication Date: 2016-07-20
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no logic level generation circuit compatible with input voltages of various logic types in the prior art

Method used

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  • Logic level generation circuit and generation method
  • Logic level generation circuit and generation method
  • Logic level generation circuit and generation method

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Embodiment Construction

[0025] The principle and spirit of the present disclosure will be described below with reference to several exemplary embodiments shown in the accompanying drawings. It should be understood that these implementations are described only to enable those skilled in the art to better understand and implement the present disclosure, but not to limit the scope of the present disclosure in any way.

[0026] figure 1 A structural block diagram of a logic level generating circuit 100 according to an embodiment of the present disclosure is shown. Such as figure 1 As shown, the logic level generating circuit 100 may include a current output type semiconductor amplifying device (an optocoupler 1 is taken as an example in various embodiments of the present disclosure), an input unit 2 , an output unit 3 and an adjustment unit 4 . The optical coupler 1 transmits electrical signals using light as a medium, and it may be various types of optical couplers. The input unit 2 is coupled to the...

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Abstract

The embodiment of the invention provides a logic level generation circuit and generation method. The logic level generation circuit comprises a current output type semiconductor amplifying device; an input unit, which is coupled to the current output type semiconductor amplifying device and is configured to receive an input voltage; an output unit, which is coupled to the current output type semiconductor amplifying device and is configured to output a logic level; and a regulating unit, which is coupled to the input unit or the output unit and is configured to regulate the input unit or the output unit according to a selection signal so as to change a static working point of the current output type semiconductor amplifying device.

Description

technical field [0001] Various embodiments of the present disclosure relate to the field of digital quantity input, and more specifically relate to a logic level generating circuit and a generating method. Background technique [0002] In the digital quantity input circuit of the prior art, it usually has a voltage of a specific logic type as an input, and then the input voltage is converted into Logical high and low levels are provided to the next-level electronic circuit (such as CPU). For example, in the prior art, there is a logic level generating circuit that converts an input voltage of 0 to 24V into a logic level (for example, using 3V as a logic "1" and 0V as a logic "0"), and converting an input voltage of 0 to 5V A logic level generation circuit that converts to a logic level. [0003] The logic level generation circuit in the prior art can only operate on an input voltage of a specific logic type (eg, 24V type or 5V type). When the user needs to provide two dif...

Claims

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Application Information

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IPC IPC(8): H03K5/13
Inventor 梁振鸿邹琦
Owner SCHNEIDER ELECTRIC IND SAS