#powermanagement

USB C has a nifty power management system where, by default, you can get a classic 5V at 1A power out from a power supply or port, but with some fancy twiddling, you can request higher voltages and currents. We've always wanted a simple breakout that could get you a range of voltages using just jumper pads, but we only had a little luck with IP2721. Then we found this chip - the HUSB238 https://en.hynetek.com/pdsink.html - used in a USB-to-DC cable, which seems perfect! It can do 5V to 20V with just a resistor setting and set the current. There's also an I2C interface that can be used to set them if the settings are persistent - we'll have to try it out. There's a library here if you want to see what the registers are like https://github.com/ltyridium/HUSB238-lib. Here's our draft for a breakout design.

The SAMD51 shortage is still killin' us, but we do have a reel of SAMD51J20's that we can use so we're revisiting this design for a SAMD51 M4 Feather with many upgrades. Think of it a a "Feather M4 v2" - with USB C instead of Micro B, 256KB SRAM chip, 8MB of QSPI flash, QT port, tactile switch, micro SD slot on the bottom and disable-able power for the NeoPixel, SD card and external I2C port.

Eaton Corporation India — Circuit Breakers, UPS & Power Distribution Pune

Eaton Corporation plc, set up in 1911 and headquartered in Dublin, Ireland, is a global leader in intelligent power management with ~$25.3 billion annual revenue operating in 175+ countries. Eaton Corporation India operates through Eaton India Pvt Ltd from its innovation centers in Pune (Kharadi) and Chennai, supplying circuit breakers, UPS systems, hydraulic pumps, power distribution units, aerospace fuel systems, and vehicle transmissions for data centers, aerospace, automotive, and utilities industries.

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