KR920005458A - 증폭 회로 - Google Patents
증폭 회로 Download PDFInfo
- Publication number
- KR920005458A KR920005458A KR1019910015002A KR910015002A KR920005458A KR 920005458 A KR920005458 A KR 920005458A KR 1019910015002 A KR1019910015002 A KR 1019910015002A KR 910015002 A KR910015002 A KR 910015002A KR 920005458 A KR920005458 A KR 920005458A
- Authority
- KR
- South Korea
- Prior art keywords
- amplifying
- signal
- output signal
- pass filter
- low pass
- Prior art date
Links
- 230000003321 amplification Effects 0.000 title claims 4
- 238000003199 nucleic acid amplification method Methods 0.000 title claims 4
- 230000005236 sound signal Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/02—Manually-operated control
- H03G5/04—Manually-operated control in untuned amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
- H03G9/14—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for gain control and tone control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Amplifiers (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 관한 증폭 회로의 양호한 실시예를 설명하는 회로도.
Claims (1)
- 음향 신호를 증폭하는 증폭 회로에 있어서, 음향 신호의 저주파 성분을 통과시킴과 동시에 위상 반전하는 저역 통과 필터, 상기 음향 신호를 증폭함과 동시에 상기 저역 통과 필터의 출력 신호를 반전 증폭하는 제1증폭수단, 상기 저역 통과필터의 출력 신호를 증폭하는 제2증폭 수산, 상기 제1증폭 수단의 출력신호가 한 끝에 인가되고, 상기 제2증폭 수단의 출력 신호가 다른 끝에 인가되는 부하를 포함하고, 상기 음향 신호를 증폭함과 동시에 상기 음향 신호의 저주파 성분을 BTL 증폭하는 것을 특징으로 하는 증폭회로.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23043690A JP2714241B2 (ja) | 1990-08-30 | 1990-08-30 | 増幅回路 |
JP90-230436 | 1990-08-30 | ||
JP2-230436 | 1990-08-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR920005458A true KR920005458A (ko) | 1992-03-28 |
KR0170777B1 KR0170777B1 (ko) | 1999-03-30 |
Family
ID=16907876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910015002A KR0170777B1 (ko) | 1990-08-30 | 1991-08-29 | 증폭 회로 |
Country Status (3)
Country | Link |
---|---|
US (1) | US5325440A (ko) |
JP (1) | JP2714241B2 (ko) |
KR (1) | KR0170777B1 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5930373A (en) * | 1997-04-04 | 1999-07-27 | K.S. Waves Ltd. | Method and system for enhancing quality of sound signal |
US6529787B2 (en) | 1999-11-15 | 2003-03-04 | Labtec Corporation | Multimedia computer speaker system with bridge-coupled subwoofer |
US7016509B1 (en) | 2000-09-08 | 2006-03-21 | Harman International Industries, Inc. | System and method for varying low audio frequencies inversely with audio signal level |
KR101017733B1 (ko) * | 2007-08-27 | 2011-02-28 | 산요 세미컨덕터 컴퍼니 리미티드 | 부하를 구동하는 파워 앰프 |
US20090257601A1 (en) * | 2008-04-12 | 2009-10-15 | Marvin Andrew Motsenbocker | Acoustic speaker system with strong bass capability |
TW201025841A (en) * | 2008-12-31 | 2010-07-01 | Princeton Technology Corp | Loudness circuit without operational amplifier |
CN102420576A (zh) * | 2011-11-21 | 2012-04-18 | 上海大亚科技有限公司 | 音频运算放大电路结构及音频输出电路结构 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5320224Y2 (ko) * | 1973-08-01 | 1978-05-27 | ||
US4186273A (en) * | 1978-06-05 | 1980-01-29 | Bose Corporation | Stereophonic system having power amplifiers and speakers in a bridge circuit with capacitor connecting junction of speakers to common terminal |
JPS62130007A (ja) * | 1985-12-02 | 1987-06-12 | Matsushita Electric Ind Co Ltd | 低周波信号増幅回路 |
US4982435A (en) * | 1987-04-17 | 1991-01-01 | Sanyo Electric Co., Ltd. | Automatic loudness control circuit |
US4891841A (en) * | 1988-02-22 | 1990-01-02 | Rane Corporation | Reciprocal, subtractive, audio spectrum equalizer |
-
1990
- 1990-08-30 JP JP23043690A patent/JP2714241B2/ja not_active Expired - Fee Related
-
1991
- 1991-08-29 KR KR1019910015002A patent/KR0170777B1/ko not_active IP Right Cessation
-
1993
- 1993-04-14 US US08/047,014 patent/US5325440A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2714241B2 (ja) | 1998-02-16 |
JPH04111510A (ja) | 1992-04-13 |
US5325440A (en) | 1994-06-28 |
KR0170777B1 (ko) | 1999-03-30 |
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Legal Events
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20081010 Year of fee payment: 11 |
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LAPS | Lapse due to unpaid annual fee |