Completely Redesigning the NES Power Module to Reduce Noise and EMI
1/8/2022
I have added to my designs a USB C Powered Module (This was long overdue).
This module uses Power Delivery to get up to 3 amps of 5V Power from a USB Power Brick.
It does not need to covert down to 5V so no buck converters or LDO's needed!!
Pictures below. Updates to come.
The small batch that I had ordered has sold out. I should have some more to give out the first part of February.
I will always have the new USB C Powered ones available at that time pending all the testing goes well.
The original NES Power Module is very noisy. The Power Traces cross eachother and the ground home path is messy. EMI was not a worry in 1985 but noise can impact picture and sound quality
Project is Open Sourced with a MIT License. It can be edited, changed and sold at your own discretion.
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Updates are now in a seperate document
https://github.com/ShawMerlin/NES-Power-Module-Redesign/blob/main/Updates.md
=-=-=-Special Thanks to Project Guardian-=-=-=
- Full Ground Plane that is uninterrupted and is free of traces and components.
- Power Traces that do not cross and have the GND plane below for a good return power signal.
- Have a specific NES Power Module for each use case (not try and pile everything into one board)
NES Classic with Sound Mixing of both Audio Channels on the NES + the Expansion Audio from the cartridge.
For the few that own the NES HDMI Board, this module will provide very easy solder points without the need of the LDO.
Below is an example of the Orignal Power Module. Notice how the power traces keep crossing eachother and other components. Folks really didn't consider EMI a lot back then and opted to just cover the entire board in a metal shoud.
