Corvus integrates a charge controller, smart battery monitor for up to 2 x Li-xx (3-10 cells) batteries and 2 x 5.2V (max 2.8A) power supply into your vehicle setup. Corvus monitors single cell voltage, battery discharge current, charge current, battery temperature and can also control a battery heater/cooler. The measured data for each individual battery is transmitted over mavlink to the autopilot/ground control station (GCS). Besides being able to isolate a failing battery from the power system during flight, Corvus can also shut down both batteries for deploying a parachute or save power while in sleep mode.
Charging
For charging, an external constant current / constant voltage (CC/CV) depending on your battery voltage is needed (e.g. two 4S 3000mah batteries with an allowed charging current of 0.5C needs a constant voltage of 16.80V with a constant current of at least 3000milliampere). Charging starts automatically when a CC/CV source is connected and cells are being balanced when needed. Corvus is pulsing the charging current when necessary, charging current can be controlled with your GCS. Battery thresholds during charging (voltage, current and temperature) & many more details are easily customizeable through your GCS. With the additional agnostic power module it is possible to arbitrarily switch positive and negative inputs of the power supply, e.g. charging through landing gear contacts.
Discharging
Corvus supports 2 power boards, delivering 2 x 50A current to power your vehicle. Temperature, current and voltage is being reported over mavlink. Corvus is capeable of isolating a failing battery to prevent electrical malfunction if an internal short occurrs. When a single power board and battery must support the total current of your vehicle, make sure your maximal necessary current is within the battery specifications and your power board’s specification (max current for the power board is above the measurable current and temperature/ventilation dependent, but at least 70A for a limited time).
When the power board is disconnected from the mainboard it is in “ON” state allowing to discharge the battery, but the charging port remains off.
