Transistor circuit

Details Transistor circuit Transistor circuit

2007-10-23

2007-10-23

Mottola, Steven J. (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including plural amplifier channels

C330S302000, C330S307000

Reexamination Certificate

active

11231800

ABSTRACT:
The transistor circuit1includes a plurality of transistor cells10each having a transistor11, a base ballast resistor12, a capacitor13, and an inductor14. The transistors11have the respective collectors commonly connected to a collector terminal1cof the transistor circuit1and the respective emitters commonly connected to an emitter terminal1ethereof. Each base ballast resistor12is connected to bases of the transistor11at one end and to a base terminal1bof the transistor circuit1at the other end. The capacitor13is serially connected to the inductor14, thus to form a serial resonant circuit15, which is connected in parallel with the base ballast resistor12and provided between the bases of the transistor11and the base terminal1bof the transistor circuit1and connected thereto.

REFERENCES:
patent: 5321279 (1994-06-01), Khatibzadeh et al.
patent: 6727761 (2004-04-01), Apel
patent: 6784747 (2004-08-01), Zhang et al.
patent: 08-279561 (1996-10-01), None

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