Power subsystem

flipper one is a portable device powered by an internal 2 cell li ion battery, which can be charged from a usb pd charger via the usb c1 port for flexible power management, the device employs controllable dc/dc converters and power switches managed by the raspberry pi rp2350 mcu specifications specifications are preliminary some specifications listed here have not yet been fully validated and are subject to change the device may also dynamically reduce performance and power capabilities under thermal limiting conditions battery capacity 22 9 wh usb c1 charging input usb pd up to 60 w usb c2 output power up to 15 w usb a output power up to 15 w gpio port output power up to 25 w m 2 port output power up to 13 w below is a simplified block diagram of the power subsystem showing power distribution to the device’s internal loads power subsystem block diagram how we measure power consumption flipper one includes a single channel ina219 power monitor for measuring total system power consumption, as well as a bq28z620 battery fuel gauge for monitoring battery parameters these measurements are displayed in real time on the power meter docid\ re arqjpz1qvgczoqq3zv in flipper one prototype units , the power monitoring system includes five additional ina4230 power monitors, providing 20 channel monitoring of voltage and current across rockchip rk3576 power domains this allows us to precisely measure power consumption across different parts of the rk3576 all measured parameters are available as graphs in the linux system monitor, along with cpu load and temperature metrics system monitor in linux