Title:
PUSH-PULL AMPLIFIER AND FREQUENCY CONVERSION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2004/023650
Kind Code:
A1
Abstract:
As an output amplifier of a frequency conversion circuit, it is possible to use a push-pull amplifier requiring little consumption current and capable of obtaining a high gain. The push-pull amplifier has a voltage drop circuit for lowering the upper stage transistor collector potential than the power source potential. The voltage drop circuit, for example, has a configuration that a resistor is inserted between the upper stage transistor collector and the power source.
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Inventors:
DODO HIDEAKI (JP)
Application Number:
PCT/JP2003/011401
Publication Date:
March 18, 2004
Filing Date:
September 08, 2003
Export Citation:
Assignee:
NEC CORP (JP)
DODO HIDEAKI (JP)
DODO HIDEAKI (JP)
International Classes:
H03D7/14; H03F1/56; H03F3/30; (IPC1-7): H03F3/30; H03D7/14
Foreign References:
| JPS50124848U | 1975-10-13 | |||
| JPS4895543U | 1973-11-14 | |||
| JPS60180206A | 1985-09-14 |
Attorney, Agent or Firm:
Miyazaki, Teruo (16th Kowa Bldg. 9-20, Akasaka 1-chom, Minato-ku Tokyo, JP)
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