Title:
NEGATIVE CAPACITANCE CIRCUIT AND OSCILLATOR CIRCUIT
Document Type and Number:
Japanese Patent JP2014200067
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a negative capacitance circuit suitable for an oscillator circuit capable of changing an oscillatory frequency within a wide frequency range.SOLUTION: The present invention comprises: a negative capacitance circuit 10 including an emitter follower circuit 1, a base ground circuit 2; a capacitor 3 provided between an output terminal of the emitter follower circuit 1 and an input terminal of the base ground circuit 2, and a resistor 4 provided between an input terminal of the emitter follower circuit 1 and an output terminal of the base ground circuit 2; an oscillator 6 that is connected with the negative capacitance circuit 10 and receives an electric current output from the output terminal of the base ground circuit 2.
Inventors:
ISHII TAKEHITO
Application Number:
JP2014027158A
Publication Date:
October 23, 2014
Filing Date:
February 17, 2014
Export Citation:
Assignee:
NIHON DEMPA KOGYO CO
International Classes:
H03H11/48; H03B5/32; H03K3/282
Domestic Patent References:
| JPS546438A | 1979-01-18 | |||
| JP2006005769A | 2006-01-05 | |||
| JPH08204451A | 1996-08-09 | |||
| JPS546438A | 1979-01-18 | |||
| JP2006005769A | 2006-01-05 | |||
| JPH08204451A | 1996-08-09 |
Foreign References:
| US20080129424A1 | 2008-06-05 | |||
| US20080129424A1 | 2008-06-05 |
Attorney, Agent or Firm:
Spring Michihiro
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