Title:
DRIVER CIRCUIT
Document Type and Number:
Japanese Patent JP3905889
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a driver circuit that has low power consumption and high voltage accuracy.
SOLUTION: This driver circuit outputs an output signal corresponding to a given input signal, and is provided with: a voltage generating part for outputting output basic voltage corresponding to the input signal; a first buffer circuit for outputting output voltage corresponding to the output basic voltage outputted by the voltage generating part; a second buffer circuit that has greater power consumption than the first buffer circuit, generates voltage corresponding to the output voltage and outputs the voltage as an output signal; a simulation circuit that has a simulation buffer circuit with almost the same characteristic as that of the first buffer circuit and generates simulation voltage corresponding to the output basic voltage outputted by the voltage generating part; and a control part for controlling the output basic voltage outputted by the voltage generating part on the basis of the simulation voltage.
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Inventors:
Naoki Matsumoto
Takashi Sekino
Takashi Sekino
Application Number:
JP2004024464A
Publication Date:
April 18, 2007
Filing Date:
January 30, 2004
Export Citation:
Assignee:
Advantest Corporation
International Classes:
H03K5/02; H03K19/0175; G01R31/319; H03F3/30; H03F3/45; (IPC1-7): H03K19/0175; H03F3/45; H03K5/02
Domestic Patent References:
| JP2004030338A | ||||
| JP11027132A | ||||
| JP2004032070A | ||||
| JP2002026712A |
Foreign References:
| US5377202 |
Attorney, Agent or Firm:
Akihiro Ryuka