Title: High-frequency power amplifier and communication apparatus
Application Number: 200510059148 Application Date: 2005.03.21
Publication Number: 1671043 Publication Date: 2005.09.21
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03F1/30,H03F3/20,H03G3/20,H04B1/00
Applicant(s) Name: Matsushita Electric Ind Co., Ltd. Address:
Inventor(s) Name: Maya Oki
Attorney & Agent: wang yang
Abstract:
     A temperature compensation circuit 145 included in a collector voltage generation section 130 a applies an offset voltage Vofs(T) to a power control signal Vctrl according to a device temperature. The resulting temperature compensation circuit output voltage Vctrl' (T) is applied to a collector terminal of a bipolar transistor 110 through a voltage regulator 140 and a choke inductor 170.
Time: 10