License

Public Domain

Recommend Projects

Time Controller for Crude Battery Spot Welder

1 month ago 22
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

Description

Here is a timer to protect power components for DIY crude battery spot welder :

-It charge a capacitor box at t=0 -Then when we put a tension on C4 (with an external switch) it stop the charging process, -Wait a chosen time, -Before to weld with the energy contained in the capacitor box, -Then when the welding process is done, it wait some milliseconds before charging again the capacitor box.

It is based on comparators (LM324N) and a timer (NE555).

Documents

Sheet_1

PCB_2020-10-28_21-20-22

BOM

ID Name Designator Footprint Quantity
1 104 C6,C8 CAP-SC_6.5X2.5XP5.0 2
2 100µF C4 PANASONIC ELECTROLYTIC 2.0 1
3 10µF C5,C7 PANASONIC ELECTROLYTIC 2.0 2
4 NE555 U2 DIP08-KIT 1
5 S9014 Q4(1),Q4(2),Q4 TO-92(TO-92-3) 3
6 5551 Q5 TO-92 1
7 10k R3 AXIAL-6.5X2.3(1/4W) 1
8 20k R4,R8,R13,R13(1),R13(2),R13(3) AXIAL-6.5X2.3(1/4W) 6
9 47k R7,R7(1) AXIAL-6.5X2.3(1/4W) 2
10 5.1k R10 AXIAL-6.5X2.3(1/4W) 1
11 6.8k R11,R12 AXIAL-6.5X2.3(1/4W) 2
12 50k P2,P3,P1 POTENTIOMETRE_ROND 3
13 LM324N U1 DIP14 1

Attachments

None

Members

Success
The owner does not allow comments in this project now

Comments (0)

goToTop
你现在访问的是EasyEDA海外版,使用建立访问速度更快的国内版 https://lceda.cn(需要重新注册)
如果需要转移工程请在个人中心 - 工程 - 工程高级设置 - 下载工程,下载后在https://lceda.cn/editor 打开保存即可。
有问题联系QQ 3001956291 不再提醒
svg-battery svg-battery-wifi svg-books svg-more svg-paste svg-pencil svg-plant svg-ruler svg-share svg-user svg-logo-cn svg-double-arrow
We use cookies to offer you a better experience. Detailed information on the use of cookies on this website is provided in our Privacy Policy. By using this site, you consent to the use of our cookies.