sinara-hw
/
kirdy
3
0
Fork 1
Code Issues 23 Pull Requests Projects Releases Wiki Activity

MCU should control 8V LDO EN pin #1

New Issue
Closed
opened 2022-07-17 23:43:07 +08:00 by topquark12 · 3 comments
topquark12 commented 2022-07-17 23:43:07 +08:00
Copy Link

Allow LD supply (8V) to be controlled by MCU with hardware pulldown to prevent unwanted current from passing through LD+ and LD- pins during power on.

Allow LD supply (8V) to be controlled by MCU with hardware pulldown to prevent unwanted current from passing through LD+ and LD- pins during power on.
sb10q commented 2022-07-19 09:33:50 +08:00
Owner
Copy Link

What happens during power-off?

What happens during power-off?
topquark12 commented 2022-07-19 10:10:53 +08:00
Author
Copy Link

Power off is clean, attached power on and power off waveforms after hacking a wire to control LD supply through MCU.

Power off is clean, attached power on and power off waveforms after hacking a wire to control LD supply through MCU.
ScreenImg (18).png
60 KiB
ScreenImg (17).png
59 KiB
ScreenImg (18).png ScreenImg (17).png
sb10q commented 2022-07-19 10:11:39 +08:00
Owner
Copy Link

Does this resist fast power cycles?
They can happen e.g. with a problematic PoE switch.

Does this resist fast power cycles? They can happen e.g. with a problematic PoE switch.
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
master
Labels
Clear labels
No items
No Label
Milestone
Clear milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
No Assignees
2 Participants
Notifications
Due Date
The due date is invalid or out of range. Please use the format 'yyyy-mm-dd'.

No due date set.

Dependencies

No dependencies set.

Reference: sinara-hw/kirdy#1
No description provided.
Delete Branch "%!s(<nil>)"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?