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jiangya
斩波电路也称为直接直流变流电路，它的功能设计将直流电变为另一固定电压或可调 电压的直流电，下面给出一种降压斩波电路。(The chopper circuit is called direct DC converter circuit, it will function design of DC to DC voltage or other fixed adjustable voltage, a chopper circuit is given below.)
- 2016-04-19 17:02:47下载
- 积分：1
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msp430andmax7219
msp430实现max7219显示程序(汇编)(MSP430 realize MAX7219 display program (compilation))
- 2008-08-12 18:15:55下载
- 积分：1
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xianlutongduanqi
线路通断检测器的设计：
1．用压电陶瓷蜂鸣片作为电声元件。
2．用两根导线作为测试探针
3．线路通断是通过测试电阻的大小来判断，有以下三种情况：
（1）若150Ω<Rx<900Ω，则蜂鸣片不发出声响。
（2）若Rx>900Ω或者Rx<150Ω，则蜂鸣片发出间歇式的滴－滴声响。
以上各临界阻值（150Ω和900Ω），允许误差±10％
4．＋15V直流稳压电源需要设计。
(Line-off detector design:
1. Piezoelectric ceramic buzzer as the electro-acoustic components.
2. As a test probe with two wires
3. Lines off by testing the resistance to determine the size, the following three conditions:
(1) If 150Ω <Rx <900Ω, the buzzer is not audible.
(2) If Rx> 900Ω or Rx <150Ω, then the buzzer sent intermittent drip- drip sound.
Above the critical resistance (150Ω and 900Ω), tolerance ± 10
4.+15 V DC power supply need to design.
)
- 2011-06-19 21:49:39下载
- 积分：1
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基于51单片机的教室智能照明控制系统
说明： 基于51单片机的教室智能照明控制系统
人数统计；时间设置，光照检测(Classroom intelligent lighting control system based on 51 single chip microcomputer
Personnel statistics; time setting, light detection)
- 2020-04-28 00:08:10下载
- 积分：1
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MTV048_VGA_OSD
VGA字符叠加芯片MTV048配置程序，基于MCU8051(VGA OSD chip MTV048 configuration procedures, based on MCU8051)
- 2013-08-28 22:57:47下载
- 积分：1
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0_1背包问题
说明： 一维数组实现01背包问题和完全背包问题的C语言解，注释清楚(C Language Annotation of 01 Knapsack Problem and Complete Knapsack Problem for One-Dimensional Array with Clear Annotations)
- 2020-06-23 10:20:02下载
- 积分：1
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stm32f103c8t6+mpu6050+oled
说明： 可以实现陀螺仪角度检测以及角度时间在oled上的完美显示(The gyroscope angle detection and the perfect display of angle time on OLED can be realized.)
- 2021-01-03 16:28:58下载
- 积分：1
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GSM20111
GSM的原理图，是通过实验的原理图，绝对没有问题，欢迎下载。谢谢(GSM schematics, experimental schematic is absolutely no problem, welcome to download. Thank you)
- 2011-09-26 11:42:20下载
- 积分：1
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26951
取键盘指示灯状态源码，例程程序调用API函数实现取键盘指示灯状态。(Take the keyboard LED status source , routine program calls API functions take keyboard LED status .)
- 2015-06-01 21:22:21下载
- 积分：1
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Train-speed-system-
基于单片机的火车测速系统源程序。利用单片机STC89C52系统实现列车行驶速度测量转换和LCD液晶显示。同时实现列车行驶方向判断和指示，键盘设定速度上下限，当速度超限时给出超速报警提示。(Train speed system based on single chip source, using SCM STC89C52 trains speed measurement system to achieve conversion and LCD display. While achieving the train driving directions judgment and instructions, keyboard set speed limit, when the speed exceeds the limit given speeding alarm.)
- 2013-07-05 16:21:01下载
- 积分：1
