找到约 265 条相关结果
研究利用NE555时基电路及人体热释电 ... This thesis is about a research which uses NE555 time base circuit and human pyroelectric sensor to ...
... 能耗大的缺点,设计一种基于NE555的直流升压电路。该电路具有 ... boost circuit,a DC boost circuit based on NE555 was designed. The circuit has the characteristics of ...
... 仪表改造电路为例，阐述了NE555在电路中如何实现方波发生器，只讲述了NE555的使用方法，没有涉及到其 ...
利用时基电路NE555设计控制真空断路器永磁机构的合/ ... 性能可靠。Using the time base circuit NE555 to design the on/off time controller for ...
... 计数器电路组成。脉冲产生器由NE555及外围元件构成多谐振荡器， ... 下按键S1时Q1导通，NE555的3脚输出脉冲，则CD4017 ...
DIY基于NE555 CD4017三组爆闪灯，电源 ... 增加一份安全，是由一块NE555 CD4017组成三组爆闪灯， ...
