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第 7 单元 脉冲波形的产生和变换 PowerPoint PPT Presentation


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第 7 单元 脉冲波形的产生和变换. 7.1 概述. 7.2 集成 555 定时器. 7.3 施密特触发器. 7.4 单稳态触发器. 7.5 多谐振荡器. 退出. 学习内容. 通过这一单元的学习,主要掌握如下知识: 多谐振荡器、单稳态电路和施密特触发器的工作原理。 能够运用 555 电路设计多谐振荡器、单稳态电路和施密特触发器。. 7.1 概述. 1 .常见脉冲波形 :. 2 .常用的脉冲参数 :. 7.2 集成 555 定时器. 4.5 ~ 16V. 1 . 555 定时器的电路结构. 复位端 低 电平有效. 电压 控制端.

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第 7 单元 脉冲波形的产生和变换

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7

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7.1

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7

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7

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7

  • 1. 555

  • 2. 555


7

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7

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7

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7

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7

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7

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200mATTLCMOS

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7

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3. 3

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5SB


7

1


7

R4R5RJ-1/4WR1R2R3RTS-1/8W

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7


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