Patent ID: 11901750
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A system comprising:
a first set of batteries coupled to a battery terminal;
a power converter coupled to a power converter terminal, wherein the battery terminal is coupled to the power converter terminal;
a first current limiting circuit in series with the first set of batteries, wherein the current limiting circuit comprises:
a first circuit comprising a first transistor in series with a first diode, wherein a first anode of the first diode is coupled to a first source of the first transistor, and wherein a first drain of the first transistor is coupled to a first node;
a second circuit comprising a second transistor in series with a second diode, wherein a first cathode of the second diode is coupled to a second drain of the second transistor, and wherein a second source of the second transistor is coupled to the first node;
a first resistor inductor (RL) circuit comprising a first resistor and a first inductor connected in series, wherein the first RL circuit, the first circuit, and the second circuit are arranged in parallel; and
a controller configured to:
operate the first current limiting circuit in a plurality of modes comprising:
a battery discharge mode, wherein when in the battery discharge mode the controller causes the first transistor to not conduct current and the second transistor to conduct current; and
a voltage imbalance mode, wherein when in the voltage imbalance mode the controller causes the first transistor and the second transistor to not conduct current, and current flows between at least a first battery and a second battery of the first set of batteries.