Title:
パルス電力増幅器
Document Type and Number:
Japanese Patent JP4707319
Kind Code:
B2
Abstract:
An amplifier includes a plurality of power amplifier elements connected in cascaded multiple stages, a first bias power supply, a second bias power supply, a switching circuit configured to switch a first output supplied from the first bias power supply in response to a modulation pulse so as to transmit the first output to the plurality of power amplifier elements, a pulse differentiating circuit configured to differentiate the modulation pulse by a given time constant, and an adder circuit configured to add the differentiated modulation pulse and a second output of the second bias power supply so as to transmit the differentiated modulation pulse added to the second output as an input bias voltage to at least one of the plurality of power amplifier elements except for a final stage in the cascaded multiple stages.
More Like This:
| JPS58219816 | AMPLIFIER |
| JPH04253417 | LEVEL SHIFT CIRCUIT |
| JP5422598 | Pulse power amplifier |
Inventors:
Haruo Kojima
Application Number:
JP2003389498A
Publication Date:
June 22, 2011
Filing Date:
November 19, 2003
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H03K5/02; H03F1/32; H03F3/21; H03F3/72
Domestic Patent References:
| JP8116219A | ||||
| JP4339404A | ||||
| JP11274870A | ||||
| JP200116045A | ||||
| JP2001284995A |
Attorney, Agent or Firm:
Hiroshi Horiguchi