KR20170025934A - Power Module with synchronous rectifier - Google Patents

Power Module with synchronous rectifier Download PDF

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Publication number
KR20170025934A
KR20170025934A KR1020150123070A KR20150123070A KR20170025934A KR 20170025934 A KR20170025934 A KR 20170025934A KR 1020150123070 A KR1020150123070 A KR 1020150123070A KR 20150123070 A KR20150123070 A KR 20150123070A KR 20170025934 A KR20170025934 A KR 20170025934A
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South Korea
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synchronous rectifier
pin
fet
power supply
package
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KR1020150123070A
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Korean (ko)
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양승철
류동균
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주식회사 솔루엠
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Priority to KR1020150123070A priority Critical patent/KR20170025934A/en
Publication of KR20170025934A publication Critical patent/KR20170025934A/en

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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
    • H02M3/33569—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 having several active switching elements
    • H02M3/33576—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 having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
    • H02M3/33592—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 having several active switching elements having at least one active switching element at the secondary side of an isolation transformer having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)
  • Dc-Dc Converters (AREA)

Abstract

Disclosed is a power apparatus for a synchronous rectifier which can solve a problem generated in a separated SR power apparatus. The power apparatus for a synchronous rectifier is formed by integrating an SR FET and an SR IC. A circuit is configured by using two terminals among three terminals of the existing SR FET as a source terminal and a drain terminal, and using the other terminal as a power terminal.

Description

동기 정류기 전원 장치{Power Module with synchronous rectifier}{Power Module with synchronous rectifier}

전원 장치, 특히 동기 정류기를 구비한 전원 장치에 대해 개시된다.A power supply device, particularly a power supply device having a synchronous rectifier, is disclosed.

기존의 TV 전원회로는 효율보다는 저가형을 선호하는 경향을 볼 수 있었다. 그러나 화석 에너지의 고갈과 빠르게 발전하는 개발도상국 등에 의해 에너지에 대한 규제가 더욱더 강화되었고, 유럽을 시작으로 전자제품의 에너지 효율에도 규제가 강화되어 TV 전원회로에서도 효율과 대기전력 문제가 하나의 기술력으로 판단되고 있다. 기존에 다이오드 정류 방식에서 Vf가 작은 FET를 사용한 동기 정류 방식을 사용함으로써, 출력 전류가 높은 제품에 대해서는 많이 적용하고 있다. 하지만, 기존에 동기 정류(Synchronous Rectifier, SR) FET과 SR 드라이버 IC가 분리된 구조는 IC 회로 부분의 습윤 문제, IC 주변 부품이 open 또는 short 발생시 FET가 동작하지 않고 바디 다이오드(body diode)로 동작하여 FET 발열을 야기시키는 문제, 부품수 증가로 가공비 상승 문제 등 여러 문제점들이 있어 개선이 필요하다.The conventional TV power circuit tends to prefer low-cost rather than efficiency. However, due to the depletion of fossil fuels and the rapid development of developing countries, regulations on energy have been further strengthened. Regulation has also been tightened on the energy efficiency of electronic products, starting in Europe, It is judged. In the conventional diode rectification method, a synchronous rectification method using an FET having a small Vf is used. However, the conventional structure in which the synchronous rectifier (SR) FET and the SR driver IC are separated has a problem of wetting of the IC circuit part, and the FET does not operate when the IC peripheral parts are open or short, and operates as a body diode Which causes problems such as heat generation of the FET and an increase in the manufacturing cost due to an increase in the number of components.

분리형 SR 전원 장치에서 발생하는 문제를 해소할 수 있는 새로운 SR 전원 장치가 개시된다.Disclosed is a new SR power supply capable of eliminating the problems occurring in a separate SR power supply.

일 양상에 따른 동기 정류기 전원 장치는 SR FET과 SR IC를 일체화한다. 기존에 SR FET의 세 단자들 중에서 두 개의 단자는 소스 단자와 드레인 단자로 이용하고 나머지 하나의 단자는 전원 단자로 이용하여 회로를 구성한다.The synchronous rectifier power supply unit according to one aspect integrates the SR FET and the SR IC. Conventionally, two of the three terminals of the SR FET are used as a source terminal and a drain terminal, and the other terminal is used as a power terminal to constitute a circuit.

FET 패키지에 SR IC를 내장하고 기존의 게이트 핀을 Vcc로 사용한 전원 장치는 습윤 등으로 발생하는 IC 회로의 short/open 이슈에 대한 문제를 해결할 수 있으며, IC 부가 회로 등의 가공비가 줄어든다. 또한 IC가 내장되어 있어 IC open시 발생하는 발열 문제도 개선이 된다.The power supply device which has the built-in SR IC in the FET package and uses the existing gate pin as Vcc can solve the short / open issue of the IC circuit caused by wetting, and the processing cost of the IC additional circuit is reduced. In addition, since the IC is built in, the problem of heat generated when the IC is opened is also improved.

도 1은 일 실시예에 따른 동기 정류기 전원 장치의 일부 회로도이다.
도 2는 FET 패키지의 다양한 예시도이다.
도 3은 일 실시예에 따른 FET 패키지의 회로 블록이다.1 is a partial circuit diagram of a synchronous rectifier power supply apparatus according to an embodiment.
2 shows various examples of the FET package.
3 is a circuit block of the FET package according to one embodiment.

전술한, 그리고 추가적인 양상들은 첨부된 도면을 참조하여 설명하는 실시예들을 통해 구체화된다. 각 실시예들의 구성 요소들은 다른 언급이나 상호간에 모순이 없는 한 실시예 내에서 다양한 조합이 가능한 것으로 이해된다.The foregoing and further aspects are embodied through the embodiments described with reference to the accompanying drawings. It is to be understood that the components of each embodiment are capable of various combinations within an embodiment as long as no other mention or mutual contradiction exists.

도 1은 일 실시예에 따른 동기 정류기 전원 장치의 일부 회로도이다. 전원 장치는 트랜스포머의 2차측에 동기 정류기용 스위치가 마련되는데, 도 1에 도시된 바와 같이 제 1 동기 정류기용 스위치 패키지(100)와 제 2 동기 정류기용 스위치 패키지(200)를 포함한다. 이들 스위치 패키지는 T0-220, D-Pack, TO-3P 등 기존의 FET 패키지이며, 그 내부에 SR IC를 내장한다. 그리고 세 개의 핀들 중에서 두 개는 이전과 같이 소스 핀과 드레인 핀으로 사용하며, 게이트 핀으로 사용하던 나머지 하나의 핀은 전원 핀(Vcc Pin)으로 사용한다. 이 같이, SR IC를 FET 패키지에 함께 구성시킴으로써, 습윤 등으로 발생하는 IC 회로의 short/open 이슈에 대해 해결할 수 이TT으며, IC 부가 회로 등의 가공비가 줄어든다. 또한, IC가 내장되어 있어 IC open시 발생하는 발열 문제도 개선된다.1 is a partial circuit diagram of a synchronous rectifier power supply apparatus according to an embodiment. The power supply unit includes a switch for the synchronous rectifier on the secondary side of the transformer, and includes a switch package 100 for the first synchronous rectifier and a switch package 200 for the second synchronous rectifier as shown in FIG. These switch packages are conventional FET packages such as T0-220, D-Pack, and TO-3P, and SR ICs are embedded in them. Two of the three pins are used as the source pin and the drain pin as before, and the other pin used as the gate pin is used as the power pin (Vcc pin). As described above, by forming SR ICs together in the FET package, it is possible to solve the short / open issue of the IC circuit caused by wetting or the like, and the processing cost of the IC additional circuit and the like is reduced. In addition, since the IC is built in, the problem of heat generated when the IC is opened is also improved.

추가로, 전원 장치는 제 1 고주파 노이즈 제거부(300)와 제 2 고주파 노이즈 제거부(400)를 더 포함할 수 있다. 제 1 고주파 노이즈 제거부(300)와 제 2 고주파 노이즈 제거부(400)는 저항과 커패시터로 구성될 수 있으며, 각각 제 1 동기 정류기용 스위치 패키지(100)와 제 2 동기 정류기용 스위치 패키지(200)로 인가되는 신호의 고주파 노이즈를 제거하는 역할을 한다.In addition, the power supply apparatus may further include a first high frequency noise removing unit 300 and a second high frequency noise removing unit 400. The first high frequency noise removing part 300 and the second high frequency noise removing part 400 may be composed of a resistor and a capacitor and are respectively connected to the first synchronous rectifier switch package 100 and the second synchronous rectifier switch package 200 To remove the high frequency noise of the signal applied to the antenna.

추가로, 전원 장치는 제 1 스위칭 노이즈 필터(500)와 제 2 스위칭 노이즈 필터(600)를 더 포함할 수 있다. 제 1 스위칭 노이즈 필터(500)와 제 2 스위칭 노이즈 필터(600)는 직렬 연결된 저항과 커패시터로 구성될 수 있으며, 각각 각각 제 1 동기 정류기용 스위치 패키지(100)와 제 2 동기 정류기용 스위치 패키지(200)의 스위칭 동작에 의해 발생하는 노이즈를 제거하는 역할을 한다.In addition, the power supply may further include a first switching noise filter 500 and a second switching noise filter 600. The first switching noise filter 500 and the second switching noise filter 600 may be composed of a resistor and a capacitor connected in series and are respectively connected to the first synchronous rectifier switch package 100 and the second synchronous rectifier switch package 200 to eliminate the noise generated by the switching operation of the switches.

도 2는 FET 패키지의 다양한 예시도이다. FET 패키지는 세 개의 핀을 포함한다. 각 핀의 역할은 아래 표 1과 같다.2 shows various examples of the FET package. The FET package includes three pins. The role of each pin is shown in Table 1 below.

Pin NoPin No SymbolSymbol I/OI / O DescriptionDescription 1One VCCVCC II IC Power Supply PinIC Power Supply Pin 22 KK II FET DrainFET Drain 33 SS II FET SourceFET Source

도 3은 일 실시예에 따른 FET 패키지의 회로 블록이다. SR IC는 Vcc 전극과 드레인 전극과 게이트 전극 및 그라운드를 포함한다. Vcc 전극은 FET 패키지의 외부에 노출된 Vcc 핀과 전기적으로 연결되고, 드레인 전극은 FET 패키지의 외부로 노출된 K 핀과 전기적으로 연결되며, 게이트 전극은 FET 패키지의 내부에 구성된 FET의 게이트 단자와 전기적으로 연결된다.3 is a circuit block of the FET package according to one embodiment. The SR IC includes a Vcc electrode, a drain electrode, a gate electrode, and a ground. The Vcc electrode is electrically connected to the Vcc pin exposed to the outside of the FET package, and the drain electrode is electrically connected to the K pin exposed to the outside of the FET package. The gate electrode is connected to the gate terminal of the FET configured in the FET package And is electrically connected.

이상의 내용은 첨부된 도면에 도시된 일 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 당해 기술 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 수 있을 것이다. 따라서, 진정한 보호 범위는 첨부된 청구범위에 의해서만 정해 져야 할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be possible. Accordingly, the true scope of protection should be determined only by the appended claims.

100 : 제 1 동기 정류기용 스위치 패키지
200 : 제 2 동기 정류기용 스위치 패키지
300 : 제 1 고주파 노이즈 제거부
400 : 제 2 고주파 노이즈 제거부
500 : 제 1 스위칭 노이즈 필터
600 :제 2 스위칭 노이즈 필터100: Switch package for the first synchronous rectifier
200: Switch package for the second synchronous rectifier
300: first high frequency noise removing unit
400: second high frequency noise removing agent
500: first switching noise filter
600: Second switching noise filter

Claims (4)

외부로 노출된 VCC핀과, K핀과, A핀을 포함하는 외부 핀과;
게이트 단자와 드레인 단자 및 쏘오스 단자를 가진 FET와;
게이트 전극과, VCC핀에 연결된 VCC 전극과, K핀에 연결된 드레인 전극을 포함하는 동기 정류기용 드라이버 집적회로;
를 포함하는 동기 정류기 전원 장치용 스위치 패키지.
An outer pin including an exposed VCC pin, a K pin, and an A pin;
A FET having a gate terminal, a drain terminal and a source terminal;
A driver integrated circuit for a synchronous rectifier including a gate electrode, a VCC electrode connected to the VCC pin, and a drain electrode connected to the K pin;
The switch package comprising:
제 1 항에 있어서, 상기 FET의 게이트 단자와 동기 정류기용 드라이버 집적회로의 게이트 전극이 패키지 내부에서 전기적으로 연결된 동기 정류기 전원 장치용 스위치 패키지.
The switch package of claim 1, wherein a gate terminal of the FET and a gate electrode of a driver integrated circuit for a synchronous rectifier are electrically connected inside the package.
제 1 항 또는 제 2 항 중의 어느 한 항에 따른 스위치 패키지를 포함하는 동기 정류기 전원 장치.
A synchronous rectifier power supply comprising a switch package according to any one of the preceding claims.
제 3 항에 있어서, 상기 동기 정류기 전원 장치는 고주파 노이즈 제거부를 더 포함하는 동기 정류기 전원 장치.

4. The synchronous rectifier power supply device according to claim 3, wherein the synchronous rectifier power supply further comprises a high frequency noise removing unit.

KR1020150123070A 2015-08-31 2015-08-31 Power Module with synchronous rectifier KR20170025934A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111864721A (en) * 2020-07-15 2020-10-30 苏州浪潮智能科技有限公司 Multi-output combined modular server power supply

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111864721A (en) * 2020-07-15 2020-10-30 苏州浪潮智能科技有限公司 Multi-output combined modular server power supply

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