Raspi 3B Latching MOSFET switch

2 years ago 1913
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

Description

Latching Mosfet switch Based on work at: http://www.mosaic-industries.com/embedded-systems/microcontroller-projects/raspberry-pi/on-off-power-controller

R8 allows a shorter wait period on switch hold / raspi gpio driven low or a 3.3v Zener diode can/should be used to protect GPIO pin

Mosfets are separate devices In PCB V1 the P-Channel device is TO-220 while the N-Channel is DPAK In PCB V2 both are DPAK footprint

N-Channel mosfet is not critical anything that will start conducting around 3v will do

P-Chan mosfet more important Logic Level FET is needed and should have as low of an RDS(on) at 4.5v as possible

See Code Attached!

Documents

Mosfet Sw PCB1

Mosfet Sw PCB2

Mosfet Latch Switch

BOM

None

Attachments

Filename Download
powerctl_pin.c.txt

Members

Success
The owner does not allow comments in this project now

Comments (1)

maurespo Reply

Hi Bilgus,


I found your circuit interesting. Precisely, which mosfet p channel have you used on your board?


Thank you,
Mauro

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.