Single-chip common-drain JFET device and its applications

Details Single-chip common-drain JFET device and its applications Single-chip common-drain JFET device and its applications

2009-04-17

2010-11-23

Cao, Phat X (Department: 2814)

Active solid-state devices (e.g., transistors, solid-state diode

Regenerative type switching device

Combined with field effect transistor

C257S135000, C257SE29314, C438S186000

Reexamination Certificate

active

07838900

ABSTRACT:
A single-chip common-drain JFET device comprises a Drain, two gates and two source arranged such that two common-drain JFETs are formed therewith. Due to the two JFETs merged within a single chip, no wire bonding connection is needed therebetween, thereby without parasitic inductance and resistance caused by bonding wire, and therefore improving the performance and reducing the package cost. The single-chip common-drain JFET device may be applied in buck converter, boost converter, inverting converter, switch, and two-step DC-to-DC converter to improve their performance and efficiency. Alternative single-chip common-drain JFET devices are also provided for current sense or proportional current generation.

REFERENCES:
patent: 5396085 (1995-03-01), Baliga
patent: 2005/0057228 (2005-03-01), Shih

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