Digital-electronics 简明教程

Digital Electronics - Code Converters

代码转换器是各种数字系统和设备中的重要组件，因为它们有助于将支持不同格式数据的不同数字设备连接在一起。

Code converters are important components in various digital systems and devices, as they help to connect different digital devices together that support data in different formats.

在本章中，我们将重点介绍数字电子设备中使用的不同类型的代码转换器、它们的特性和应用。

In this chapter, we will highlight different types of code converters used in digital electronics, their features, and applications.

What is a Code Converter?

code converter 是一个用于将数字代码从一种形式转换为另一种形式的数字电子电路。数字代码只不过是用二进制格式表示的一段数据或信息，即以 0 和 1 的序列形式表示。

A code converter is a digital electronic circuit that is used to convert a digital code from one form to another. A digital code is nothing but a piece of data or information represented in binary format, i.e., in the form of strings of 0s and 1s.

代码转换器仅仅是一个将代码从一种格式翻译为另一种格式的翻译器。例如，二进制转十进制转换器、BCD 转XS-3 转换器、二进制转十进制转换器等。

A code converter is simply a translator which translates a code from one format to another. For example, binary to decimal converter, BCD to Excess-3 converter, binary to decimal converter, etc.

代码转换器是使用不同编码方案的各种数字系统中的基本组成部分。它们有助于使两个不同的数字系统彼此兼容。

Code converters are essential components in various digital systems that use different encoding schemes. They help to make two different digital systems compatible with each other.

例如，考虑一个支持二进制格式数据的数字系统，我们需要将此系统与另一个支持十进制格式数据处理的系统连接起来。然后，我们需要一个介于它们之间的数据转换器，该转换器可以将二进制格式的数据转换为十进制格式进行处理。这就是代码转换器在系统接口中发挥重要作用的方式。

For example, consider a digital system that supports data in binary format, and we need to connect this system with another system for processing that supports data in decimal format. Then, we need a data converter between them that can translate binary formatted data into decimal format for processing. This is how code converters play an important role in system interfacing.

Function of a Code Converter

代码转换器的主要功能是接受一种格式的代码并将其转换为另一种格式。

The primary function of a code converter is to accept code in one format and translate it into a different format.

代码转换器读取和解释输入代码，并根据其功能产生等效的输出代码。例如，二进制到十进制代码转换器以二进制代码作为输入，并生成等效的十进制代码作为输出。

A code converter reads and interprets the input code and produces an equivalent output code according to its functionality. For example, a binary-to-decimal code converter takes a binary code as input and generates an equivalent decimal code as output.

Types of Code Converters

根据代码转换器执行的转换任务，以下是几种常见的代码转换器类型−

Depending on the conversion task that a code converter performs, the following are some common types of code converters −

  1. Binary to Decimal Converter

  2. Decimal to BCD Converter

  3. BCD to Decimal Converter

  4. Binary to Gray Code Converter

  5. Gray Code to Binary Converter

  6. BCD to Excess-3 Converter

  7. Excess-3 to BCD Converter

让我们讨论一下每种类型的代码转换器−

Let us discuss each of these types of code converters −

Binary to Decimal Converter

一种用于将数据从二进制格式转换为十进制格式的代码转换器类型称为二进制到十进制转换器。

A type of code converter used to convert data from binary format to decimal format is called a binary-to-decimal converter.

二进制到十进制转换器的输入是以 0 和 1 格式表示的数字。然后，转换器使用算法将输入二进制数转换为等效的十进制数。最后，它生成十进制代码作为输出。

The input to the binary-to-decimal converter is a number represented in a format of 0s and 1s. Then, the converter uses an algorithm to convert the input binary number into an equivalent decimal number. Finally, it generates a decimal code as output.

Decimal to BCD Converter

十进制到 BCD（二进制编码十进制）转换器是一种将十进制数转换为其等效的 4 位二进制代码（称为 BCD 代码）的代码转换器类型。

A decimal-to-BCD (Binary Coded Decimal) converter is a type of code convert that converts a decimal number into its equivalent 4-bit binary code, called BCD code.

BCD to Decimal Converter

一个能将二进制编码十进制 (BCD) 数转换成等效十进制数的数字电路称为 BCD-to-decimal converter 。

A digital circuit that can convert a binary-coded decimal (BCD) number into an equivalent decimal number is referred to as a BCD-to-decimal converter.

BCD 到十进制转换器的输入是一个 8421 BCD 代码，转换器产生的输出是一个十进制数。

The input to a BCD to decimal converter is an 8421 BCD code and the output generated by the converter is a decimal number.

Binary to Gray Code Converter

二进制到格雷码转换器是一种可以将二进制码转换为其等效格雷码的代码转换器类型。

A binary-to-gray code converter is a type of code converter that can translate a binary code into its equivalent gray code.

二进制到格雷码转换器接受二进制数作为输入，并生成相应的格雷码作为输出。

The binary-to-gray code converter accepts a binary number as input and produces a corresponding gray code as output.

Gray Code to Binary Converter

格雷码到二进制转换器是一种可以将格雷码转换为等效的纯二进制码的数字电路。因此，格雷码到二进制转换器以格雷码作为输入，并输出纯二进制码。

A gray code-to-binary converter is a digital circuit that can translate a gray code into an equivalent pure binary code. Thus, a gray code to binary converter takes a gray code as input and gives a pure binary code as output.

BCD to Excess-3 Converter

数字电子设备中的一种代码转换器类型，用于将二进制编码十进制数转换为等效的XS-3 代码，称为 BCD 到XS-3 转换器。

A type of code converter in digital electronics that is used to convert a binary-coded decimal number into an equivalent excess-3 code is called a BCD to excess-3 converter.

Excess-3 to BCD Converter

XS-3 到 BCD 转换器是一种数字电子设备中的代码转换器类型，用于将 XS-3 代码转换为等效的二进制编码十进制数。

An excess-3 to BCD converter is a type of code converter in digital electronics used to translate an XS-3 code into an equivalent binary-coded decimal.

因此，XS-3 到 BCD 代码转换器接受 XS-3 格式的数字代码，并生成 BCD 格式的等效数字代码。

Therefore, an XS-3 to BCD code converter accepts a digital code in XS-3 format and produces an equivalent digital code in BCD format.

Applications of Code Converters

在数字电路和系统中，代码转换器是必不可少的组成部分，能够将数字代码从一种格式转换为另一种格式。

In digital circuits and systems, the code converters are essential components that allow the conversion of a digital code from one format to another.

下面列出了一些代码转换器的重要应用：

Some of the important applications of code converters are listed below −

  1. Code converters are used in ADC (Analog-to-Digital Converters) and DAC (Digital-to-Analog Converters).

  2. Code converters are used in computers to translate data between different digital formats.

  3. Code converters are also employed in display devices like seven segment displays, to convert binary codes into human readable form.

  4. In digital communication systems, the code converters are used to perform modulation and encoding tasks.

  5. The code converters are also used as interfacing device between two digital devices or systems that use different encoding schemes.

  6. Code converters are also used in digital signal processing applications to manipulate and process signals in different formats.

代码转换器几乎是所有数字系统和设备的组成部分。它们允许以不同格式解释和处理数字信息。

Code converters are integral parts of almost all digital systems and devices. They allow to interpret and process digital information in different formats.

Conclusion

代码转换器只不过是一个数字电路，可以将数字代码从一种格式（如二进制）转换为另一种格式（如十进制）。

A code converter is nothing but a digital circuit that can convert a digital code from one format like binary to another format like decimal.

代码转换器广泛用于各种数字设备，如计算机、智能手机、数字通信系统、微处理器、微控制器等。

Code converters are widely used in a variety of digital devices such as computers, smartphones, digital communication systems, microprocessors, microcontrollers, and more.