Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

T1 rotation issue / diode fix #9

Open
hexagon5un opened this issue Nov 11, 2023 · 0 comments
Open

T1 rotation issue / diode fix #9

hexagon5un opened this issue Nov 11, 2023 · 0 comments

Comments

@hexagon5un
Copy link
Member

The p-mosfet has source and drain switched in the circuit diagram, the gerbers, and the production PCB.
There are two good fixes:
One is to flip the mosfet on its back, rotate it around the gate pin (which is correct) and maybe bend the pins down or just blob solder on to connect it.
This doesn't scale well to 550 badges, so we ordered a Schottky diode array with the diodes pointing in the correct direction (common cathode? -- check me!) and did the replacement.

Anyway, this needs to be fixed in the BOM/circuit diagram and the PCB.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

1 participant