Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1985-09-23
1987-07-07
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307270, 307315, 307318, 307443, H03K 1901, H03K 19086
Patent
active
046789421
ABSTRACT:
An ECL (Emitter Coupled Logic) circuit is provided which has an increased ability to drive a large capacitive load or to drive a large fan-out circuit, wherein the power consumption per gate is reduced. The output circuit of the ECL circuit is provided with an emitter follower transistor which has the current therethrough detected by a detecting transistor. A current control transistor is provided to quickly charge the load capacitance under the control of the detecting transistor, and thus, the voltage drop of the output signal is improved. One of the emitter follower transistor and the current transistor are always cut off when the other is in a conductive state, and therefore, the current running through the circuit is reduced.
REFERENCES:
patent: 3978347 (1976-08-01), Hollstein et al.
patent: 4276485 (1981-06-01), Rydval
patent: 4287435 (1981-09-01), Cavaliere et al.
patent: 4490630 (1984-12-01), Freeman
patent: 4527078 (1985-07-01), Smith
patent: 4531067 (1985-07-01), Banker et al.
patent: 4539493 (1985-09-01), Varadarajan
patent: 4551638 (1985-11-01), Varadarajan
Kanai Yasunori
Saitoh Taichi
Fujitsu Limited
Hudspeth D. R.
Miller Stanley D.
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