rsdio tipped us to an app note on power-supply sequencers and voltage trackers:
here’s something for cloudform511’s Open Source Laptop, assuming it will need a fan
The MAX34441, PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller
Power supply/thermal manager provides unparalleled “black box” failure logging and energy efficient fan control
- Provides predictable operation of up to five power supplies with the ability to measure power consumption and report faults
- Saves energy and improves reliability by allowing the system cooling fan to be run at minimum possible speed
- “Black Box” failure history enables rapid root cause determination and system performance improvements
Thanks for the tip rsdio!