Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
153 words
An emitter-follower circuit having a ground potential terminal and a first and a second negative power supply terminal and a current-switching type logic circuit formed between said ground potential terminal and said first negative power supply terminal, said emitter-follower circuit comprising: an emitter-follower transistor having its base connected to one output of said current-switching type logic circuit, its collector connected to said ground potential terminal, and its emitter connected to an output terminal; a first transistor having its collector connected to said ground potential terminal and its base connected to the other output of said current-switching type logic circuit; a second transistor having its collector connected to said output terminal, its base connected to the emitter of said first transistor, and its emitter connected to said second negative power supply terminal; and a diode having its anode connected to the base of said first transistor and its cathode connected to said output terminal.
Claim 2
Dependent Claim
153 words
An emitter-follower circuit having a ground potential terminal and a first and a second negative power supply terminal and a current-switching type logic circuit formed between said ground potential terminal and said first negative power supply terminal, said emitter-follower circuit comprising: an emitter-follower transistor having its base connected to one output of said current-switching type logic circuit, its collector connected to said ground potential terminal, and its emitter connected to an output terminal; a first transistor having its collector connected to said ground potential terminal and its base connected to the other output of said current-switching type logic circuit; a second transistor having its collector connected to said output terminal, its base connected to the emitter of said first transistor, and its emitter connected to said second negative power supply terminal; and a diode having its anode connected to the base of said first transistor and its cathode connected to said output terminal.
Claim 3
Dependent Claim
40 words
An emitter-follower circuit according to claim 1, which circuit further comprises a first constant-current source disposed between the junction of the emitter of said first transistor with the base of said second transistor and said first negative power supply terminal.
Claim 4
Dependent Claim
38 words
An emitter-follower circuit according to claim 1, which circuit further comprises a resistor connected between the junction of the emitter of said first transistor with the base of said second transistor and said first negative power supply terminal.
Claim 5
Dependent Claim
37 words
An emitter-follower circuit according to claim 1, which circuit further comprises a resistor between the junction of the emitter of said first transistor with the base of said second transistor and said second negative power supply terminal.
Claim 6
Dependent Claim
139 words
An emitter-follower circuit according to claim 1, which circuit further comprises: an input emitter-follower circuit formed between the ground potential terminal and the first negative power supply terminal and having a resistor and a third transistor whose base is connected to an input terminal of said current-switching type logic circuit; a differential circuit having a fourth transistor whose collector is connected to the emitter of said first transistor and also to the base of said second transistor and whose base is connected to the output of said input emitter-follower circuit, and a fifth transistor whose collector is connected to said ground potential terminal and whose base is connected to a reference voltage source; and a second constant-current source connected between said first negative power supply terminal and the emitters of said fourth and fifth transistors of said differential circuit.