Output circuit
AssigneeNEC Corporation
InventorNobuhiro Ohki
Life of this patent
Estimating the term…
Abstract
In an output circuit, there are provided a first transistor connected to an output terminal and a first resistor element connected to the first transistor. A second transistor is connected in cascade to the first transistor. A second resistor element is connected between the second transistor and the ground. An emitter follower having a level shift function is connected to the first and second transistors. There are also provided an input circuit which inputs a first input signal and a second input signal to the emitter follower. The first and second input signals are opposite to each other in phase.
Claims12
An output circuit comprising:
- a first transistor connected to an output terminal;
- a first resistor element connected to said first transistor;
- a second transistor connected to said first transistor in cascade;
- a second resistor element connected between said second transistor and the ground;
- an emitter follower connected to said first and second transistors, said emitter follower having a level shift function;
- and
- an input circuit which inputs a first input signal and a second input signal to said emitter follower, said first and second input signals being opposite to each other in phase.
An output circuit comprising:
- a first bipolar transistor whose collector is connected to an output terminal;
- a first resistor element connected to said collector of said first bipolar transistor;
- a second bipolar transistor connected to said first bipolar transistor in cascade;
- a second resistor element connected between an emitter of said second bipolar transistor and the ground;
- an emitter follower connected to each base of said first and second bipolar transistors, said emitter follower having a level shift function;
- and
- an input circuit which inputs a first input signal and a second input signal to said emitter follower, said first and second input signals being opposite to each other in phase.
An output circuit comprising:
- a first MOS transistor whose drain is connected to an output terminal;
- a first resistor element connected to said drain of said first MOS transistor;
- a second MOS transistor connected to said first MOS transistor in cascade;
- a second resistor element connected between a source of said second MOS transistor and the ground;
- an emitter follower connected to each gate of said first and second MOS transistors, said emitter follower having a level shift function;
- and
- an input circuit which inputs a first input signal and a second input signal to said emitter follower, said first and second input signals being opposite to each other in phase.
Dependencies are inferred from the claim text.