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Description: 各种实用电路图
+5V输入+30V输出升压电路.gif
4管发射机原理图.gif
USB转232电路.gif
超声波驱蚊虫器.gif
经典的电源电路(7805扩流).gif
等20多个电路-various practical circuit 5V input 30V output boost circuit. Gif four transmitters schematics. Gif 232 USB switch circuit. Gif ultrasonic pest insect repellent device. Gif classic power circuit (7805 expanding). Gif more than 20 circuits
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Size: 3227400 |
Author: 罗怀林 |
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Description: PDF文档(主要介绍7805芯片的使用）-PDF files (mainly on the use of 7,805 chips)
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Size: 123570 |
Author: 孙志江 |
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Description: 定时器结合LED
7805开发板，适合初学者
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Size: 18458 |
Author: miaoronghua |
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Description: 智能寻迹灭火小车的控制系统以AT89C52为核心，用两片L298N，一片用于驱动两个减速电机，一片用于驱动风扇。12V电源单独给电机供电，再用7805把12V电源降压至5V给单片机供电。小车前进时，是通过寻迹模块里的RPR220检测信号再由AD转换为电平信号返回到单片机，单片机根据程序设计的要求做出相应的判断送给电机驱动模块，让小车来实现前进、左转、右转、停车等基本功能。到达火灾地点时，单片机通过L298N来控制风扇工作灭火.....
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Size: 366592 |
Author: 1010486241@qq.com |
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Description: 简易智能迷宫小车的控制系统以STC89C52为核心，用一片L298N驱动两个减速电机。12V电源单独给电机供电，再用7805把12V电源降压至7V给单片机供电。小车的传感器模块感应壁障，并将壁障信号输入最小系统版，最小系统版根据程序设计的要求做出相应的判断送给电机驱动模块，让小车来实现前进、左转、右转、反转等基本功能。
Platform: |
Size: 752 |
Author: 1010486241@qq.com |
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Description: 各种实用电路图
+5V输入+30V输出升压电路.gif
4管发射机原理图.gif
USB转232电路.gif
超声波驱蚊虫器.gif
经典的电源电路(7805扩流).gif
等20多个电路-various practical circuit 5V input 30V output boost circuit. Gif four transmitters schematics. Gif 232 USB switch circuit. Gif ultrasonic pest insect repellent device. Gif classic power circuit (7805 expanding). Gif more than 20 circuits
Platform: |
Size: 3226624 |
Author: 罗怀林 |
Hits:
Description: PDF文档(主要介绍7805芯片的使用）-PDF files (mainly on the use of 7,805 chips)
Platform: |
Size: 122880 |
Author: 孙志江 |
Hits:
Description: 定时器结合LED
7805开发板，适合初学者-Timer combination LED7805 development board, suitable for beginners
Platform: |
Size: 18432 |
Author: miaoronghua |
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Description: 7805的应用，也是一款稳压芯片，性价比很高，很不错的。-7805 applications, but also a voltage regulator chip, cost-effective high, very good.
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Size: 265216 |
Author: shi |
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Description: 电脑家电控制系统
本系统是利用电脑通过串口和单片机进行通信，从而通过电脑控制家电的开和关，也可用于其它地方控制其它电器。
此系统制作资料齐全，也很简单。
电脑上位机软件下载
电路原理图和PCB板图下载
源程序下载
1.本系统可以通过PC远程或者在家控制家用电器，为适应各种场合，只需更改上位机相应的LABEL的名称即可！（这点也是这个软件的不足之一，会在以后的时间里，慢慢完善。）
2.硬件原理图中，三端稳压管7805，未加任何散热装置，经实验，由于电流过大，可能会导致7805的损坏！解决办法如下：
（1）加装散热片
（2）在7805的输出端接个大功率三级管来扩流！
3.因涉及到220V市电，实验时，请务必注意人身安全！！！
-Computer control system for home appliances
This system is the use of computers through the serial port and single-chip communication, computer-controlled home appliances through the opening and clearance, can also be used to control other electrical appliances elsewhere.
The production of this system are well documented, but also very simple.
PC computer software downloads
Schematic and PCB circuit board map download
Download source
1. The system or by PC remote control of home appliances at home, in order to adapt to a variety of occasions, just to change the PC name corresponding to the LABEL! (This is also one of the shortcomings of the software will be at a later time, slowly improving.)
2. Hardware schematics, the three-terminal voltage regulator tube 7805, without any cooling device, by the experiment, because the current is too large, may result in damage to 7805! Solution is as follows:
(1) installation of heat sinks
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Size: 535552 |
Author: cjwei |
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Description:
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Size: 57344 |
Author: |
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Description: 以7805为例说明问题。
设I=350mA，Vin=12V，则耗散功率Pd=(12V-5V)*0.35A=2.45W
按照TO-220封装的热阻θJA=54℃/W，温升是132℃，设室温25℃，那么将会达到7805的热保护点150℃，7805会断开输出
-7805 as an example to illustrate the problem. Located I = 350mA, Vin = 12V, the power dissipation Pd = (12V-5V)* 0.35A = 2.45W TO-220 package in accordance with the thermal resistance θJA = 54 ℃/W, temperature is 132 ℃, located at 25 ℃, it will reach 7805' s thermal protection point 150 ℃, 7805 will disconnect the output
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Size: 3072 |
Author: 石勇 |
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Description: lm 7805 datasheet... ..
-lm 7805 datasheet........
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Size: 790528 |
Author: swapnil |
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Description: ttl2rs232 adaptor using a max232 and voltage stabilizator 7805
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Size: 7168 |
Author: juan |
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Description: 一个普通电源的PROTEL文件，用来腐蚀板子做的模板-An ordinary power of PROTEL document template used to make corrosion board
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Size: 675840 |
Author: 徐旸 |
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Description: The Technical Manual (Datasheet) of 7805
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Size: 176128 |
Author: saber |
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Description: datasheet of 7805 for 5VDC power supply
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Size: 819200 |
Author: Swapnil Bangar |
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Description: 基于7805的直流稳压电源设计，设计一个单片机的供电电源，利用LM7805-7805-based DC power supply design, power supply design a microcontroller using LM7805
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Size: 79872 |
Author: 会困 |
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Description: For the master IC with 40 pins, it s 89C51
There are also com-port and 7805 as you can see the footprint
Stuff of 4-pins button is for the hex keypad
Resister pull-up and led can easily be recognized by their footprint
I lost my schematic for a time. So sorry for that inconvenience
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Size: 12288 |
Author: tai truong |
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Description: this datasheet of 7805-this is datasheet of 7805
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Size: 207872 |
Author: dat |
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