KR101034867B1 - 전자파 장해 저감용 전원장치 - Google Patents
전자파 장해 저감용 전원장치 Download PDFInfo
- Publication number
- KR101034867B1 KR101034867B1 KR1020080089114A KR20080089114A KR101034867B1 KR 101034867 B1 KR101034867 B1 KR 101034867B1 KR 1020080089114 A KR1020080089114 A KR 1020080089114A KR 20080089114 A KR20080089114 A KR 20080089114A KR 101034867 B1 KR101034867 B1 KR 101034867B1
- Authority
- KR
- South Korea
- Prior art keywords
- current
- power supply
- electromagnetic interference
- triangular wave
- oscillator
- Prior art date
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Classifications
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
- G05F3/26—Current mirrors
- G05F3/262—Current mirrors using field-effect transistors only
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims (2)
- 스위치 IC 내부 전류공급부(106)로부터 입력받은 전류를 캐패시터에 충전 또는 방전을 하여 동작하는 오실레이터(105)를 포함하는 전원장치에 있어서,상기 IC 내부 전류공급부(106)로부터 입력받은 전류를 각 파트에 원하는 크기로 변화시켜 공급해주는 전류분배부(101)와;상기 전류분배부(101)에서 입력받은 전류를 제어신호에 따라 캐패시터에 충전 또는 방전을 함으로써 삼각파를 만들어주는 삼각파발생부(102)와;상기 삼각파발생부(102)의 충방전 시간을 조절해주는 제어신호발생부(103)와;상기 전류분배부(101)에서 공급받은 전류(I1)(201)와 상기 삼각파발생부(102)의 삼각파 전압을 전류량으로 변환시킨 전류(I2)(203)를 합성하는 전류합성부(104)와;상기 전류합성부(104)로부터 합성된 전류(I3)(202)를 공급받아 캐패시터에 충전 및 방전을 수행하여 전원장치의 동작주파수를 발생시키는 오실레이터(105);를 포함하여 구성되어, 상기 오실레이터(105)의 발생주파수는 일정 주기 간격으로 그 값이 변조됨에 따라 전원장치의 스위칭 동작시 전자파 장해를 저감시키는 것을 특징으로 하는 전자파 장해 저감용 전원장치.
- 제 1항에 있어서, 상기 전류합성부(104)의 구현에 있어서,두 개의 전류미러회로를 이용하여 그 기능을 구현하며, 한쪽 입력에는 고정 전류값을 입력받고, 다른 한쪽으로는 주기적으로 변경되는 전압값을 MOSFET 또는 BJT에 의해 전류값으로 변경한 후, 두 개의 전류값을 합성함으로써 일정 주기 간격으로 전류량을 변화시켜 구현되는 것을 특징으로 하는 전자파 장해 저감용 전원장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080089114A KR101034867B1 (ko) | 2008-09-10 | 2008-09-10 | 전자파 장해 저감용 전원장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020080089114A KR101034867B1 (ko) | 2008-09-10 | 2008-09-10 | 전자파 장해 저감용 전원장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20100030248A KR20100030248A (ko) | 2010-03-18 |
KR101034867B1 true KR101034867B1 (ko) | 2011-05-17 |
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KR1020080089114A KR101034867B1 (ko) | 2008-09-10 | 2008-09-10 | 전자파 장해 저감용 전원장치 |
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KR (1) | KR101034867B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107969101A (zh) * | 2017-12-15 | 2018-04-27 | 深圳市虹远通信有限责任公司 | 抑制大电压、电流高速变化产生电磁干扰的方法和装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH057133A (ja) * | 1991-06-26 | 1993-01-14 | Nec Corp | 発振回路 |
KR100545980B1 (ko) | 2002-08-02 | 2006-01-25 | 산요덴키가부시키가이샤 | 전압 제어 발진기 |
KR20060041421A (ko) * | 2004-11-08 | 2006-05-12 | 삼성전기주식회사 | 온도독립 전류원 회로 |
JP2006352384A (ja) | 2005-06-15 | 2006-12-28 | Fuji Electric Device Technology Co Ltd | 集積回路内蔵発振器 |
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2008
- 2008-09-10 KR KR1020080089114A patent/KR101034867B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH057133A (ja) * | 1991-06-26 | 1993-01-14 | Nec Corp | 発振回路 |
KR100545980B1 (ko) | 2002-08-02 | 2006-01-25 | 산요덴키가부시키가이샤 | 전압 제어 발진기 |
KR20060041421A (ko) * | 2004-11-08 | 2006-05-12 | 삼성전기주식회사 | 온도독립 전류원 회로 |
JP2006352384A (ja) | 2005-06-15 | 2006-12-28 | Fuji Electric Device Technology Co Ltd | 集積回路内蔵発振器 |
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KR20100030248A (ko) | 2010-03-18 |
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