Driver circuit
AssigneeNEC Corporation
InventorKeiji Miura
Life of this patent
Estimating the term…
Abstract
In a driver circuit, a signal from an internal circuit region is shifted by a differential circuit formed by NMOS transistors N4, N5, N6 and resistors R1, R2, output signals from the differential circuit being input to an output stage formed by NMOS transistors N1, N2, N3 and resistors R3, R4.
Claims8
A driver circuit of an output stage comprising a first power supply, a first N-channel MOS transistor, a drain of which is connected to a first output terminal, a second N-channel MOS transistor, a drain of which is connected to a second output terminal, and a third N-channel MOS transistor, a source of which is connected to ground, a gate of which is connected to a second power supply, and a drain of which is connected to a source of said first N-channel MOS transistor and a source of said second N-channel MOS transistor, a first resistor connected between said first power supply and said drain of said first N-channel MOS transistor, a second resistor connected between said first power supply and said drain of said second N-channel MOS transistor, wherein said driver circuit comprising;
- a first power supply of said driver circuit,
- a first resistor connected between said first power supply of said driver circuit and a gate of said first N-channel MOS transistor of said output stage,
- a second resistor connected between said first power supply of said driver circuit and a gate of said second N-channel MOS transistor,
- a first N-channel MOS transistor, a drain of which is connected to a gate of said first N-channel MOS transistor of said output stage, and a gate of which is connected to a first input terminal,
- a second N-channel MOS transistor, a drain of which is connected to a gate of said second N-channel MOS transistor of said output stage, and a gate of which is connected to a second input terminal, and
- a third N-channel MOS transistor, a source of which is connected to ground, a gate of which is connected to a second power supply of said driver circuit, and a drain of which is connected to a source of said first N-channel MOS transistor of said driver circuit and a source of said second N-channel MOS transistor of said driver circuit.
A driver circuit of an output stage comprising a first power supply, a first N-channel MOS transistor, a drain of which is connected to a first output terminal, a second N-channel MOS transistor, a drain of which is connected to a second output terminal, and a third N-channel MOS transistor, a source of which is connected to ground, a gate of which is connected to a second power supply, and a drain of which is connected to a source of said first N-channel MOS transistor and a source of said second N-channel MOS transistor, a first resistor connected between said first power supply and said drain of said first N-channel MOS transistor, a second resistor connected between said first power supply and said drain of said second N-channel MOS transistor, wherein said driver circuit comprising;
- a first power supply of said driver circuit, a potential of which is lower than that of said first power supply of said output stage,
- a first resistor connected between said first power supply of said driver circuit and a gate of said first N-channel MOS transistor of said output stage,
- a second resistor connected between said first power supply of said driver circuit and a gate of said second N-channel MOS transistor,
- a first N-channel MOS transistor, a drain of which is connected to a gate of said first N-channel MOS transistor of said output stage, and a gate of which is connected to a first input terminal,
- a second N-channel MOS transistor, a drain of which is connected to a gate of said second N-channel MOS transistor of said output stage, and a gate of which is connected to a second input terminal, and
- a third N-channel MOS transistor, a source of which is connected to ground, a gate of which is connected to a second power supply of said driver circuit, and a drain of which is connected to a source of said first N-channel MOS transistor of said driver circuit and a source of said second N-channel MOS transistor of said driver circuit.
A driver circuit of an output stage comprising a first power supply, a first N-channel MOS transistor, a drain of which is connected to a first output terminal, a second N-channel MOS transistor, a drain of which is connected to a second output terminal, and a third N-channel MOS transistor, a source of which is connected to ground, a gate of which is connected to a second power supply, and a drain of which is connected to a source of said first N-channel MOS transistor and a source of said second N-channel MOS transistor, a first resistor connected between said first power supply and said drain of said first N-channel MOS transistor, a second resistor connected between said first power supply and said drain of said second N-channel MOS transistor, wherein said driver circuit comprising;
- a first power supply of said driver circuit,
- a first P-channel MOS transistor, a gate of which is connected to a first input terminal, a drain of which is connected to ground, and a source of which is connected to a gate of said second N-channel MOS transistor of said output stage,
- a second P-channel MOS transistor, a gate of which is connected to a second input terminal, a drain of which is connected to ground, and a source of which is connected to a gate of said first N-channel MOS transistor of said output stage,
- a third P-channel MOS transistor, a source of which is connected to said first power supply of said driver circuit, a gate of which is connected to a second power supply of said driver circuit, and a drain of which is connected to a gate of said second N-channel MOS transistor of said output stage, and
- a fourth P-channel MOS transistor, a source of which is connected to said first power supply of said driver circuit, a gate of which is connected to said second power supply of said driver circuit, and a drain of which is connected to a gate of said first N-channel MOS transistor of said output stage.
A driver circuit of an output stage comprising a first power supply, a first N-channel MOS transistor, a drain of which is connected to a first output terminal, a second N-channel MOS transistor, a drain of which is connected to a second output terminal, and a third N-channel MOS transistor, a source of which is connected to ground, a gate of which is connected to a second power supply, and a drain of which is connected to a source of said first N-channel MOS transistor and a source of said second N-channel MOS transistor, a first resistor connected between said first power supply and said drain of said first N-channel MOS transistor, a second resistor connected between said first power supply and said drain of said second N-channel MOS transistor, wherein said driver circuit comprising;
- a first power supply of said driver circuit, a potential of which is lower than that of said first power supply of said output stage,
- a first P-channel MOS transistor, a gate of which is connected to a first input terminal, a drain of which is connected to ground, and a source of which is connected to a gate of said second N-channel MOS transistor of said output stage,
- a second P-channel MOS transistor, a gate of which is connected to a second input terminal, a drain of which is connected to ground, and a source of which is connected to a gate of said first N-channel MOS transistor of said output stage,
- a third P-channel MOS transistor, a source of which is connected to said first power supply of said driver circuit, a gate of which is connected to a second power supply of said driver circuit, and a drain of which is connected to a gate of said second N-channel MOS transistor of said output stage, and
- a fourth P-channel MOS transistor, a source of which is connected to said first power supply of said driver circuit, a gate of which is connected to said second power supply of said driver circuit, and a drain of which is connected to a gate of said first N-channel MOS transistor of said output stage.
A driver circuit of an output stage comprising a first power supply, a first N-channel MOS transistor, a drain of which is connected to a first output terminal, a second N-channel MOS transistor, a drain of which is connected to a second output terminal, and a third N-channel MOS transistor, a source of which is connected to ground, a gate of which is connected to a second power supply, and a drain of which is connected to a source of said first N-channel MOS transistor and a source of said second N-channel MOS transistor, a first resistor connected between said first power supply and said drain of said first N-channel MOS transistor, a second resistor connected between said first power supply and said drain of said second N-channel MOS transistor, wherein said driver circuit comprising;
- a first power supply of said driver circuit,
- a first resistor connected between said first power supply of said driver circuit and a gate of said first N-channel MOS transistor of said output stage,
- a second resistor connected between said first power supply of said driver circuit and a gate of said second N-channel MOS transistor,
- a first N-channel MOS transistor, a drain of which is connected to a gate of said first N-channel MOS transistor of said output stage,
- a second N-channel MOS transistor, a drain of which is connected to a gate of said second N-channel MOS transistor of said output stage,
- a third N-channel MOS transistor, a source of which is connected to ground, a gate of which is connected to a second power supply of said driver circuit, and a drain of which is connected to a source of said first N-channel MOS transistor of said driver circuit and a source of said second N-channel MOS transistor of said driver circuit.
- a first P-channel MOS transistor, a gate of which is connected to a first input terminal, a drain of which is connected to ground, and a source of which is connected to a gate of said first N-channel MOS transistor of said driver circuit,
- a second P-channel MOS transistor, a gate of which is connected to a second input terminal, a drain of which is connected to ground, and a source of which is connected to a gate of said second N-channel MOS transistor of said driver circuit,
- a third P-channel MOS transistor, a source of which is connected to said first power supply of said driver circuit, a gate of which is connected to a third power supply of said driver circuit, and a drain of which is connected to a gate of said first N-channel MOS transistor of said driver circuit, and
- a fourth P-channel MOS transistor, a source of which is connected to said first power supply of said driver circuit, a gate of which is connected to said third power supply of said driver circuit, and a drain of which is connected to a gate of said second N-channel MOS transistor of said driver circuit.
A driver circuit of an output stage comprising a first power supply, a first N-channel MOS transistor, a drain of which is connected to a first output terminal, a second N-channel MOS transistor, a drain of which is connected to a second output terminal, and a third N-channel MOS transistor, a source of which is connected to ground, a gate of which is connected to a second power supply, and a drain of which is connected to a source of said first N-channel MOS transistor and a source of said second N-channel MOS transistor, a first resistor connected between said first power supply and said drain of said first N-channel MOS transistor, a second resistor connected between said first power supply and said drain of said second N-channel MOS transistor, wherein said driver circuit comprising;
- a first power supply of said driver circuit, a potential of which is lower than that of said first power supply of said output stage,
- a first resistor connected between said first power supply of said driver circuit and a gate of said first N-channel MOS transistor of said output stage,
- a second resistor connected between said first power supply of said driver circuit and a gate of said second N-channel MOS transistor,
- a first N-channel MOS transistor, a drain of which is connected to a gate of said first N-channel MOS transistor of said output stage,
- a second N-channel MOS transistor, a drain of which is connected to a gate of said second N-channel MOS transistor of said output stage,
- a third N-channel MOS transistor, a source of which is connected to ground, a gate of which is connected to a second power supply of said driver circuit, and a drain of which is connected to a source of said first N-channel MOS transistor of said driver circuit and a source of said second N-channel MOS transistor of said driver circuit.
- a first P-channel MOS transistor, a gate of which is connected to a first input terminal, a drain of which is connected to ground, and a source of which is connected to a gate of said first N-channel MOS transistor of said driver circuit,
- a second P-channel MOS transistor, a gate of which is connected to a second input terminal, a drain of which is connected to ground, and a source of which is connected to a gate of said second N-channel MOS transistor of said driver circuit,
- a third P-channel MOS transistor, a source of which is connected to said first power supply of said driver circuit, a gate of which is connected to a second power supply of said driver circuit, and a drain of which is connected to a gate of said first N-channel MOS transistor of said driver circuit, and
- a fourth P-channel MOS transistor, a source of which is connected to said first power supply of said driver circuit, a gate of which is connected to said second power supply of said driver circuit, and a drain of which is connected to a gate of said second N-channel MOS transistor of said driver circuit.
Dependencies are inferred from the claim text.