Method and system of current sharing among bidirectional double-base bipolar junction transistors
AssigneeIdeal Power Inc.
InventorAlireza Mojab
Life of this patent
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Abstract
Current sharing among bidirectional double-base bipolar junction transistors. One example is a method comprising: conducting current through a first bidirectional double-base bipolar junction transistor (first B-TRAN); conducting current through a second B-TRAN the second B-TRAN coupled in parallel with the first B-TRAN; measuring a value indicative of conduction of the first B-TRAN, and measuring a value indicative of conduction of the second B-TRAN; and adjusting a current flow through the first B-TRAN, the adjusting responsive to the value indicative of conduction of the first B-TRAN being different than the value indicative of conduction of the second B-TRAN.
Claims22
A method of operating bidirectional double-base bipolar junction transistors, the method comprising:
- conducting current through a first bidirectional double-base bipolar junction transistor (first B-TRAN);
- conducting current through a second bidirectional double-base bipolar junction transistor (second B-TRAN), the second B-TRAN coupled in parallel with the first B-TRAN;
- measuring a value indicative of temperature of the first B-TRAN, and measuring a value indicative of temperature of the second B-TRAN;
- and
- adjusting a current flow through the first B-TRAN, the adjusting responsive to the value indicative of temperature of the first B-TRAN being different than the value indicative of temperature of the second B-TRAN.
A switch assembly comprising:
- a first bidirectional double-base bipolar junction transistor (first B-TRAN) defining an upper base, an upper collector-emitter, a lower base, and a lower collector-emitter;
- a second bidirectional double-base bipolar junction transistor (second B-TRAN) defining an upper base, an upper collector-emitter, a lower base, and a lower collector-emitter, the second B-TRAN coupled in parallel with the first B-TRAN;
- a controller;
- a first means for measuring conduction through the first B-TRAN, the first means for measuring coupled to the controller;
- a first means for controlling conduction through the first B-TRAN, the first means for controlling conduction coupled to the controller;
- a second means for measuring conduction through the second B-TRAN, the second means for measuring coupled to the controller;
- wherein the controller is configured to:
- read a value indicative of conduction through the first B-TRAN;
- read a value indicative of conduction through the first B-TRAN;
- and
- adjust, by way of the first means for controlling, current flow through the first B-TRAN, the adjustment responsive to the value indicative of conduction of the first B-TRAN being different than the value indicative of conduction through second B-TRAN.
Dependencies are inferred from the claim text.