KR100581709B1 - 모뎀용 스위칭방식 전원공급장치 - Google Patents
모뎀용 스위칭방식 전원공급장치 Download PDFInfo
- Publication number
- KR100581709B1 KR100581709B1 KR1020040048615A KR20040048615A KR100581709B1 KR 100581709 B1 KR100581709 B1 KR 100581709B1 KR 1020040048615 A KR1020040048615 A KR 1020040048615A KR 20040048615 A KR20040048615 A KR 20040048615A KR 100581709 B1 KR100581709 B1 KR 100581709B1
- Authority
- KR
- South Korea
- Prior art keywords
- switching
- transformer
- power supply
- modem
- unit
- Prior art date
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims (6)
- 플러그를 통해 인가되는 AC전원을 정류하는 1차측 정류부(10)와, 상기 1차측 정류부(10)의 출력을 선택적으로 인가하는 스위칭부(20)와, 상기 스위칭부(20)에 작동신호를 인가하는 스위칭 제어부(30) 및, 상기 스위칭부(20)의 구동에 따라 상기 1차측 정류부(10)의 전압을 변압시켜 출력하는 트랜스(40), 상기 트랜스(40)의 출력을 정류하는 2차측 정류부(50), 상기 2차측 정류부(50)의 출력전압을 검출하여 상기 스위칭 제어부(30)로 인가하는 정전압 제어부(60)를 포함하는 모뎀용 스위칭방식 전원공급장치에 있어서,상기 트랜스(40)의 일 측에는 상기 트랜스(40)의 1차 코일의 일정 권선을 실드하여 접지 처리한 실드 접지부(41); 및,출력단에 VCC와 GND를 연결하는 페라이트 코아(L2);가 형성되어 있는 것을 특징으로 하는 모뎀용 스위칭방식 전원공급장치.
- 삭제
- 삭제
- 제 1항에 있어서, 입력단에 직렬로 연결되는 NTC 써미스터(RT1)를 더 구비한 것을 특징으로 하는 모뎀용 스위칭방식 전원공급장치.
- 제 1항에 있어서, 상기 2차측 정류부(50)는 콘덴서(C4)와 저항(R3)이 병렬로 연결된 것을 특징으로 하는 모뎀용 스위칭방식 전원공급장치.
- 제 1항에 있어서, 상기 스위칭부(20)와 스위칭 제어부(30)의 사이에 저항(R2)이 직렬로 연결된 것을 특징으로 하는 모뎀용 스위칭방식 전원공급장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040048615A KR100581709B1 (ko) | 2004-06-26 | 2004-06-26 | 모뎀용 스위칭방식 전원공급장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040048615A KR100581709B1 (ko) | 2004-06-26 | 2004-06-26 | 모뎀용 스위칭방식 전원공급장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050122934A KR20050122934A (ko) | 2005-12-29 |
KR100581709B1 true KR100581709B1 (ko) | 2006-05-22 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020040048615A KR100581709B1 (ko) | 2004-06-26 | 2004-06-26 | 모뎀용 스위칭방식 전원공급장치 |
Country Status (1)
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KR (1) | KR100581709B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101101677B1 (ko) * | 2009-11-20 | 2011-12-30 | 삼성전기주식회사 | 전도성 노이즈를 감소시킬 수 있는 emi 필터 |
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2004
- 2004-06-26 KR KR1020040048615A patent/KR100581709B1/ko active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101101677B1 (ko) * | 2009-11-20 | 2011-12-30 | 삼성전기주식회사 | 전도성 노이즈를 감소시킬 수 있는 emi 필터 |
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Publication number | Publication date |
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KR20050122934A (ko) | 2005-12-29 |
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