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a level shifter

A level converter and circuit technology, applied in the direction of output power conversion devices, instruments, electrical components, etc., can solve the problem of inability to connect directly, and achieve the effect of simple structure, convenient use and wide use

Inactive Publication Date: 2011-12-14
SUZHOU SUZHU IND CONTROL ENG TECH RES CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the modern automated manufacturing process, the circuit system is more and more complex, the circuit modules are more and more, the power supply used is no longer single, it can be three-phase 380V, it can be AC ​​220V, it can also be DC 24V, DC 5V, etc., products with different working power sources cannot be directly connected

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] Such as figure 1 The level converter described above is used to connect a DC5V circuit with a DC24V circuit, and the level converter includes two signal input terminals of pin A and pin B, pin GND and two pins of pin A and pin B. a signal output terminal.

[0016] DC5V circuit signal is input from pin A and pin GND, DC24V circuit signal can get corresponding signal from pin A and pin GND; DC5V circuit signal is input from pin B and pin GND, DC24V circuit signal can get corresponding signal from pin B and pin GND.

[0017] The converter is installed in the connecting part of the DC5V circuit and the DC24V circuit, and the DC5V signal and the DC24V signal are mutually converted by using the switching characteristics of the triode.

[0018] When performing level shifting through a parallel bus, since WR and RD signals usually already exis...

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Abstract

The invention discloses a level converter, which is used to connect a DC5V circuit with a DC24V circuit. The level converter includes two signal input terminals of pin A and pin B, pin GND and two a signal output terminal. This device solves the problem that the DC5V signal and the DC24V signal cannot be directly connected, so that the equipment with different working voltages in the process production can be connected and communicated with each other. The product has a simple structure, stable performance, and is easy to use. It is widely used in industrial equipment. widely used.

Description

technical field [0001] The invention relates to the field of electronic and electrical technologies, in particular to a level shifter for connecting a DC5V circuit with a DC24V circuit. Background technique [0002] In the new generation of electronic circuit design, with the introduction of low-voltage logic, the problem of input / output logic inconsistency often occurs inside the system, which increases the complexity of system design. For example, when a 1.8V digital circuit communicates with an analog circuit operating at 3.3V, it is necessary to first solve the conversion problem of the two levels, and then a level shifter is needed. [0003] With the continuous emergence of digital ICs with different operating voltages, the necessity of logic level conversion is more prominent, and the level conversion method will also change with the logic voltage, the form of the data bus, and the data transmission rate. Although many logic chips can now convert from a higher logic l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/00
Inventor 钱洪海
Owner SUZHOU SUZHU IND CONTROL ENG TECH RES CENT CO LTD