Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2005-03-22
2005-03-22
Le, Don (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S083000, C326S086000
Reexamination Certificate
active
06870401
ABSTRACT:
The signal transmission circuit is provided, said signal transmission circuit being capable of stable operations even with a source power of low voltage and a fast operation. The signal transmission circuit comprises plural stages of circuit in each of which the pulse voltage according to the driving pulse is sequentially outputted. The circuit of each stage includes: the output transistor T12for outputting the pulse voltage to the source, according to the driving pulse; the bootstrap capacitor C1connected between the gate and the source of the output transistor; the first charging transistor T11for charging the bootstrap capacitor; the first and the second discharging transistor T13and T14for discharging the electric charge of the bootstrap capacitor; and the logical circuit which (i) turns on the first and the second discharging transistor, according to the driving pulse for each circuit of the other stages, and (ii) turns off the first and the second discharging transistor, according to the gate signal of the charging transistor.
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Kasuga Shigetaka
Murata Takahiko
Yamaguchi Takumi
Le Don
Wenderoth , Lind & Ponack, L.L.P.
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