Invention Grant
US09024379B2 Trench transistors and methods with low-voltage-drop shunt to body diode 有权
沟槽晶体管和方法与低压降分流到体二极管

Trench transistors and methods with low-voltage-drop shunt to body diode
Abstract:
Methods and systems for power semiconductor devices integrating multiple trench transistors on a single chip. Multiple power transistors (or active regions) are paralleled, but one transistor has a lower threshold voltage. This reduces the voltage drop when the transistor is forward-biased. In an alternative embodiment, the power device with lower threshold voltage is simply connected as a depletion diode, to thereby shunt the body diodes of the active transistors, without affecting turn-on and ON-state behavior.
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