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US 9,804,613 B2Granted
Parallel transistor circuit controller
AssigneeThe Boeing Company
InventorsLijun Gao, Shengyi Liu, Eugene V. Solodovnik, Kamiar J. Karimi
Life of this patent
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Abstract
A method for controlling a circuit control system. Currents are sensed at outputs of transistors in the circuit control system. Levels are identified for the currents. A number of characteristics of the transistors are controlled while the currents flow out of the transistors such that the currents flowing out of the transistors have desired levels.
Claims20
An apparatus comprising:
- a controller configured to:
- identify currents flowing out of transistors;
- identify an average current for the currents flowing out of the transistors;
- identify a difference between the currents and the average current;
- and;
- control a number of characteristics of the transistors using the difference between the currents and the average current while the currents flow out of the transistors such that the currents flowing out of the transistors have desired levels, wherein the number of characteristics includes at least a limit on a range of currents in which the transistors can be controlled and also one of a dynamic state current region or steady state current region for the transistors.
3 more elements
A circuit control system comprising:
- a number of circuit modules including transistors connected in parallel;
- variable resistance devices connected to control terminals of the transistors;
- a current sensor system to sense currents at outputs of the transistors;
- and
- a controller configured to:
- identify levels of the currents flowing out of the transistors from the current sensor system;
- identify an average current level for the levels of the currents flowing out of the transistors;
- identify a difference between the levels of current and the average current level;
- and
- control a number of characteristics of the transistors using the difference between the current levels and the average current by controlling the variable resistance devices while the currents flow out of the transistors such that the currents flowing out of the transistors have desired levels, wherein the number of characteristics includes at least a limit on a range of currents in which the transistors can be controlled and also one of a dynamic state current region or steady state current region for the transistors.
7 more elements
A method for controlling a circuit control system, the method comprising:
- sensing currents at outputs of transistors in the circuit control system;
- identifying levels for the currents;
- identifying an average current level for the levels of the currents;
- identifying a difference between the levels of the current and the average current level;
- and
- controlling a number of characteristics of the transistors using the difference between the current levels and the average current while the currents flow out of the transistors such that the currents flowing out of the transistors have desired levels, wherein the number of characteristics includes at least a limit on a range of currents in which the transistors can be controlled and also one of a dynamic state current region or steady state current region for the transistors.
3 more elements
Dependencies are inferred from the claim text.