Power management unit architecture
AssigneeRaytheon Company
InventorsStephen John Fedigan, Mahitha Velagapudi, Grant Allen Sweer, Derek L. Budisalich, Eric C. Maugans, Andrew Thompson
Life of this patent
Estimating the term…
Abstract
A power management unit architecture including a set of batteries connected to a load via a bus; a controller in operative communication with the batteries; a telemetry unit in operative communication with the controller and the batteries; at least one power switch in operative communication with the controller, the batteries and the bus; a squib unit operatively connected to the batteries; wherein the controller is configured to pull a battery current from a first battery and drive the first battery current into a second battery responsive to a predetermined current.
Claims19
A power management unit architecture comprising:
- a first battery in operative communication with an electrical load via a bus;
- a second battery in operative communication with the electrical load via the bus and in operative communication with the first battery;
- an nth battery in operative communication with electrical load via the bus and in operative communication with an n−1th battery;
- a controller in operative communication with the first battery, the second battery and up to the nth battery;
- a first telemetry unit in operative communication with the controller and the first battery;
- a second telemetry unit in operative communication with the controller and the second battery;
- an nth telemetry unit in operative communication with the controller and the nth battery;
- a first power switch in operative communication with the controller, the first battery and the bus;
- a second power switch in operative communication with the controller, and the second battery and the bus;
- an nth power switch in operative communication with the controller, and the nth battery and the bus;
- a first squib unit operatively connected to the first battery;
- a second squib unit operatively connected to the second battery;
- an nth squib unit operatively connected to the nth battery, wherein the controller is configured to pull a first battery current from the first battery and drive the first battery current into the second battery responsive to a predetermined current;
- and the controller is configured to pull a second battery current from the second battery and drive the second battery current to an n−1th battery up to the nth battery responsive to a predetermined current.
A process for sequential activation of batteries connected to an electrical load comprising:
- operatively connecting a first battery with the electrical load;
- subsequently operatively connecting a second battery with the electrical load and operatively connecting the second battery in communication with the first battery;
- operatively connecting a controller in operative communication with first the battery and the second battery;
- operatively connecting a first telemetry unit in operative communication with the controller and the first battery;
- operatively connecting a second telemetry unit in operative communication with the controller and the second battery;
- and
- configuring the controller to pull a first battery current from the first battery and drive the first battery current into the second battery responsive to a predetermined current.
Dependencies are inferred from the claim text.