KR100524882B1 - 온도 보상 기능과 넓은 동작 범위를 갖는 전력 증폭기 - Google Patents
온도 보상 기능과 넓은 동작 범위를 갖는 전력 증폭기 Download PDFInfo
- Publication number
- KR100524882B1 KR100524882B1 KR1019960045448A KR19960045448A KR100524882B1 KR 100524882 B1 KR100524882 B1 KR 100524882B1 KR 1019960045448 A KR1019960045448 A KR 1019960045448A KR 19960045448 A KR19960045448 A KR 19960045448A KR 100524882 B1 KR100524882 B1 KR 100524882B1
- Authority
- KR
- South Korea
- Prior art keywords
- voltage
- power amplifier
- input
- amplifying
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
- H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (2)
- 휴대용 전자기기의 전력공급부에서 프리앰프로부터 입력한 입력전압을 증폭하여 상기 휴대용 전자기기에 공급하는 전력증폭기에 있어서,기준전압을 변화하여 기준전류를 발생시키는 기준전류공급수단;입력한 상기 기준전류를 제어전류에 응답하여 출력직류전압을 발생시키는 버퍼;상기 출력직류전압을 교류접지로 하여, 상기 입력신호의 상측부분을 증폭하는 제1 증폭수단;상기 출력직류전압을 교류접지로 하여, 상기 입력신호의 하측부분을 증폭하는 제2 증폭수단; 및상기 휴대용 전자기기에 공급되는 공급전압에 응답하여 소정레벨 이하의 상기 제어전류를 발생시키고, 온도증가에 따른 상기 버퍼로부터의 출력직류전압의 증가에도 상기 제1 증폭수단에서의 전류이득을 일정하게 유지하도록 하기 위한 제어전류발생수단을 구비하고,상기 제1 증폭수단과 상기 제2 증폭수단에서 각각 증폭된 상기 입력신호의 상측 및 하측부분을 상기 입력전압의 증폭된 전압으로서 출력하는 것을 특징으로 하는 온도보상기능과 넓은 동작범위를 갖는 전력증폭기.
- 제1항에 있어서,상기 제어전류발생수단은, 상기 공급전압을 분배받아 상기 입력신호의 상측부분을 증폭시키는 증폭트랜지스터의 컬렉터-에미터 양단의 전압에 상기 분배전압만큼 더 인가시키기 위한 저항기들을 포함하는 것을 특징으로 하는 온도보상기능과 넓은 동작범위를 갖는 전력증폭기.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960045448A KR100524882B1 (ko) | 1996-10-11 | 1996-10-11 | 온도 보상 기능과 넓은 동작 범위를 갖는 전력 증폭기 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960045448A KR100524882B1 (ko) | 1996-10-11 | 1996-10-11 | 온도 보상 기능과 넓은 동작 범위를 갖는 전력 증폭기 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19980026882A KR19980026882A (ko) | 1998-07-15 |
KR100524882B1 true KR100524882B1 (ko) | 2005-12-26 |
Family
ID=37306880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960045448A Expired - Fee Related KR100524882B1 (ko) | 1996-10-11 | 1996-10-11 | 온도 보상 기능과 넓은 동작 범위를 갖는 전력 증폭기 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100524882B1 (ko) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR890011283A (ko) * | 1987-12-15 | 1989-08-14 | 강진구 | 온도보상용 정류회로를 갖는 카폰의 송신 출력단 회로 |
-
1996
- 1996-10-11 KR KR1019960045448A patent/KR100524882B1/ko not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR890011283A (ko) * | 1987-12-15 | 1989-08-14 | 강진구 | 온도보상용 정류회로를 갖는 카폰의 송신 출력단 회로 |
Also Published As
Publication number | Publication date |
---|---|
KR19980026882A (ko) | 1998-07-15 |
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