KR960006232A - Power factor improvement circuit - Google Patents

Power factor improvement circuit Download PDF

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Publication number
KR960006232A
KR960006232A KR1019940017599A KR19940017599A KR960006232A KR 960006232 A KR960006232 A KR 960006232A KR 1019940017599 A KR1019940017599 A KR 1019940017599A KR 19940017599 A KR19940017599 A KR 19940017599A KR 960006232 A KR960006232 A KR 960006232A
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KR
South Korea
Prior art keywords
diode
power factor
improvement circuit
factor improvement
inductance
Prior art date
Application number
KR1019940017599A
Other languages
Korean (ko)
Inventor
송의호
Original Assignee
이형도
삼성전기 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 이형도, 삼성전기 주식회사 filed Critical 이형도
Priority to KR1019940017599A priority Critical patent/KR960006232A/en
Publication of KR960006232A publication Critical patent/KR960006232A/en

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Abstract

역률개선회로가 개시되는 바, 이는 에너지 저장 및 전자파 차폐용 필터와 정류용 브리지 및 역률개선회로의 동작을 한꺼번에 처리하도록 함으로써 기존 3단계 전력손실의 1단게의 손실로 줄이도록 한 것이다.The power factor improvement circuit is disclosed, which reduces the energy loss and electromagnetic shielding filter, the rectifier bridge, and the power factor improvement circuit at the same time by reducing the loss of one step of the existing three-stage power loss.

특징적인 구성으로는 1차, 2차 인덕턴스에 교류입력전원의 에너지를 저장하고 직류/직류 변환기에서 발생한 고주파의 전자파 차폐용 필터기능을 하는 트랜스포머(T)와, 트랜스포머에서 전달되는 에너지를 정류하는 브리지 다이오드(D1)-(D4)와, 직류/직류 변환기 입력단에 걸리는 전압과 전류의 위상차를 조절하는 스위칭 소자(S3)(S4)및 콘덴서(C)로 구성함으로써 역률을 개선할 수 있다.A characteristic configuration is a transformer (T) which stores energy of AC input power in primary and secondary inductances and functions as a filter for shielding high frequency electromagnetic waves generated from a DC / DC converter, and a bridge for rectifying energy transmitted from the transformer. Power factor can be improved by consisting of diodes (D 1 )-(D 4 ), switching elements (S 3 ) (S 4 ) and capacitor (C) that adjust the phase difference between voltage and current across the DC / DC converter input. have.

Description

역률개선회로Power factor improvement circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 이 발명에 따른 역률개선회로의 다른 실시예도.3 is another embodiment of the power factor improvement circuit according to the present invention.

제4도는 이 발명에 따른 역률개선회로의 또 다른 실시예도.4 is another embodiment of the power factor improvement circuit according to the present invention.

Claims (5)

1차 인덕턴스(L1)와 2차 인덕턴스(L2)에 교류입력전원의 에너지를 저장하고 직류/전류 변환기에서 발생한 고주파 전자파 차폐용 필터기능을 하는 트랜스포머(T)와, 트랜스포머의 1차, 2차, 인덕턴스에 연결되어 트랜스포머에 전달되는 교류에너지를 정류하는 브리지 다이오드(D1)(D2)(D3)(D4)와, 상기 트랜스포머의 1차 인덕턴스(L1)와 2차 인덕턴스(L2)에 역방향 접속된 제3, 제4다이오드(D3)(D4)의 양단에 각각 병렬로 접속하여 직류/직류 변환기 입력단에 결리는 전압과 전류의 윙상을 조절하는 스위칭 소자(S3)(S4)와, 상기 브리지 다이오드의 출력단에 접속된 콘덴서(C)로 구성함을 특징으로 하는 역률개선회로.Transformer (T) that stores energy of AC input power in primary inductance (L 1 ) and secondary inductance (L 2 ) and functions as a filter for shielding high frequency electromagnetic waves generated from DC / current converters, and primary and secondary transformers. Bridge diode (D 1 ) (D 2 ) (D 3 ) (D 4 ), which is connected to the primary and inductance to rectify the alternating energy delivered to the transformer, and the primary inductance (L 1 ) and secondary inductance ( A switching element (S 3 ) for connecting the both ends of the third and fourth diodes (D 3 ) (D 4 ) connected in the reverse direction to L 2 ) in parallel to adjust the wing phase of the voltage and current connected to the input of the DC / DC converter. (S 4 ) and a capacitor (C) connected to the output terminal of the bridge diode. 제1항에 있어서, 스위칭 소자가 트랜스포머의 1차 인덕턴스(L1)와 2차 인덕턴스(L2)에 순방향 접속된 제1다이오드(D1)와 제2다이오드(D2)에 연결된 것을 특징으로 하는 역률개선회로.The method of claim 1, wherein the switching element is connected to the first diode (D 1 ) and the second diode (D 2 ) forwardly connected to the primary inductance (L 1 ) and secondary inductance (L 2 ) of the transformer. Power factor improvement circuit. 제1항에 있어서, 스위칭 소자가 트랜스포머의 2차 인덕턴스(L2)에 순방향 접속된 제2다이오드(D1)와 역방향 접속된 제4다이오드(D4)에 연결된 것을 특징으로 하는 역률개선회로.The power factor improvement circuit according to claim 1, wherein the switching element is connected to a second diode (D 1 ) forward connected to the secondary inductance (L 2 ) of the transformer and a fourth diode (D 4 ) connected in a reverse direction. 제1항에 있어서, 상기 정류용 브리지 다이오드중 특정의 다이오드와 그 양단에 병령 접속되어 한쌍을 이루는 스위칭 소자를 하나의 트랜지스터로 구성하는 것을 특징으로 하는 역률개선회로.The power factor improvement circuit according to claim 1, wherein a pair of switching elements connected in parallel with a specific diode of the rectifying bridge diodes and a pair thereof is constituted by one transistor. 제1항에 있어서, 상기 정류용 브리지 다이오드중 특정의 다이오드와 그 양단에 병령 접속되어 한쌍을 이루는 스위칭 소자를 하나의 전계효과 트랜지스터로 구성하는 것을 특징으로 하는 역률개선회로.The power factor improvement circuit according to claim 1, wherein a pair of switching elements connected in parallel with a specific diode of the rectifying bridge diode and a pair thereof is constituted by one field effect transistor. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940017599A 1994-07-21 1994-07-21 Power factor improvement circuit KR960006232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940017599A KR960006232A (en) 1994-07-21 1994-07-21 Power factor improvement circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940017599A KR960006232A (en) 1994-07-21 1994-07-21 Power factor improvement circuit

Publications (1)

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KR960006232A true KR960006232A (en) 1996-02-23

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Application Number Title Priority Date Filing Date
KR1019940017599A KR960006232A (en) 1994-07-21 1994-07-21 Power factor improvement circuit

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100296290B1 (en) * 1998-06-11 2001-10-26 구자홍 Single Phase Active Rectifier for Power Factor Control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100296290B1 (en) * 1998-06-11 2001-10-26 구자홍 Single Phase Active Rectifier for Power Factor Control

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