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1. 发明专利

JP3783062B2 Circuit apparatus for supplying power to the pulse output stage 失效
公开(公告)号：JP3783062B2
公开(公告)日：2006-06-07
申请号：JP52167297
申请日：1996-12-02
申请人：ヴェクトロニクスアーゲー
发明人：ノルベルトレンツ
IPC分类号： H01S5/062 , H03K11/00 , H01S5/042 , H01S5/06 , H02M3/10 , H02M9/04 , H02M9/06 , H03K3/57
CPC分类号： H03K3/57 , H01S5/042 , H01S5/0428 , H02M3/10

2. 发明专利

JP2005051991A Control unit of duty cycle in half-bridge type dc-dc converter using current mode control 审中-公开
标题翻译：使用电流模式控制的半桥型DC-DC转换器中的占空比控制单元
公开(公告)号：JP2005051991A
公开(公告)日：2005-02-24
申请号：JP2004197731
申请日：2004-07-05
申请人： Renesas Technology Corp , 株式会社ルネサステクノロジ
发明人： RAI ENSEI , JO FUKUSAN , LIN SHIRON , KO YUIKETSU
IPC分类号： H02M3/28 , H02M1/02 , H02M3/10
摘要： PROBLEM TO BE SOLVED: To provide a control unit of duty cycle in a half-bridge type DC-DC converter using current mode control for making the duty cycle of a pulse width modulation signal symmetric by latching the voltage of a voltage-divider capacitor on input side to a predetermined value.
SOLUTION: The half-bridge type DC-DC converter 4 using the current mode control is provided with an auxiliary transformer 31 to be connected in parallel to the primary side 421 of the main transformer 42 and a first diode SD1 and a second diode SD2 to be connected in parallel relative to the voltage-divider capacitors C1, C2 connected in series and connected in series in forward direction. At this time, the primary side 311 no-point end of the auxiliary transformer 31 is connected to one end of the voltage-divider capacitor C1, C2 side in the transformer 44, while one end of the secondary side 312 of the auxiliary transformer 31 is connected between the voltage-divider capacitors C1, C2, connecting the other end between the first diode and the second diode.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了通过使用电流模式控制来提供半桥式DC-DC转换器中的占空比的控制单元，以使脉冲宽度调制信号的占空比通过锁存电压 - 输入侧的分压电容器达到预定值。解决方案：使用电流模式控制的半桥式DC-DC转换器4设置有与主变压器42的初级侧421并联连接的辅助变压器31，第一二极管SD1和第二二极管SD1 二极管SD2相对于串联连接的分压电容器C1，C2并联连接并且在正向连接。此时，辅助变压器31的初级侧311无点端与变压器44的分压电容器C1，C2侧的一端连接，辅助变压器31的次级侧312的一端连接在连接第一二极管和第二二极管之间的另一端的分压电容器C1，C2之间。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2005032260A BOOTSTRAP CAPACITOR CHARGE CIRCUIT WITH LIMITED CHARGE CURRENT 有权
公开(公告)号：JP2005032260A
公开(公告)日：2005-02-03
申请号：JP2004205175
申请日：2004-07-12
申请人： INT RECTIFIER CORP
发明人： THIERY VINCENT
IPC分类号： H01L27/04 , G05F1/56 , G05F1/613 , H01L21/822 , H01M10/44 , H02J1/00 , H02M3/00 , H02M3/10
摘要： PROBLEM TO BE SOLVED: To provide a bootstrap capacitor charge circuit which limits charge current flowing into the bootstrap capacitor. SOLUTION: The bootstrap capacitor charge circuit includes a bootstrap capacitor, a semiconductor switch controlled by a control terminal coupled to a source of charging current for the bootstrap capacitor, and a voltage regulator device having a regulation voltage and coupled to the control terminal of the switch. The switch has two main terminals: a first main terminal coupled to the source of charging current and a second main terminal coupled to the bootstrap capacitor. The switch is turned off, when a voltage across the capacitor approximately equals the regulation voltage of the voltage regulation device, thereby limiting the charge current flowing into the bootstrap capacitor. COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2873291B2 失效
公开(公告)号：JP2873291B2
公开(公告)日：1999-03-24
申请号：JP30782389
申请日：1989-11-29
申请人： KONIN* FUIRITSUPUSU EREKUTORONIKUSU NV
发明人： MANFURETSUDO ARUBATSUHA , FUBERUTO RAETSU
IPC分类号： H02M7/06 , H02M1/12 , H02M3/10 , H02M7/08 , H02M7/219

5. 发明专利

JP2732100B2 失效
公开(公告)号：JP2732100B2
公开(公告)日：1998-03-25
申请号：JP31665388
申请日：1988-12-16
申请人： BURAUN AG
发明人： GYUNTAA BERUKU
IPC分类号： H02M3/10 , H02M3/155 , H02M3/156

6. 发明专利

JP2676510B2 失效
公开(公告)号：JP2676510B2
公开(公告)日：1997-11-17
申请号：JP3685187
申请日：1987-02-19
IPC分类号： G05F1/10 , H01L25/04 , H01L25/18 , H02M1/08 , H02M3/10 , H03K17/56

7. 发明专利

JP2541529B2 失效
公开(公告)号：JP2541529B2
公开(公告)日：1996-10-09
申请号：JP50467386
申请日：1986-08-26
申请人： HUGHES AIRCRAFT CO
发明人： AARENSU OORAN EFU , MAATEINRII ROBAATO EMU
IPC分类号： G05F1/67 , H02J7/35 , H02M3/10 , H02M3/155

8. 发明专利

JPH07110132B2 失效
公开(公告)号：JPH07110132B2
公开(公告)日：1995-11-22
申请号：JP23372691
申请日：1991-08-22
IPC分类号： H02J1/00 , H02J7/00 , H02M3/10 , H02M3/155 , H02M3/158

9. 发明专利

JPH07135731A OVERHEAT PROTECTIVE DEVICE FOR SEMICONDUCTOR ELEMENT 失效
公开(公告)号：JPH07135731A
公开(公告)日：1995-05-23
申请号：JP27873793
申请日：1993-11-09
申请人： FUJI ELECTRIC CO LTD
发明人： KATO MASASHI
IPC分类号： H01L27/04 , H01L21/822 , H02H7/12 , H02H7/122 , H02M1/00 , H02M3/10 , H02M7/48
摘要： PURPOSE:To prevent the scaling-up and the increase of cost of a semiconductor power converter due to an excess safety design for protecting a semiconductor element from thermal breakdown in the semiconductor power converter difficult to specifying service conditions. CONSTITUTION:Currents flowing through a semiconductor element are measured by a current measuring means 101, voltage by a voltage measuring means 102 and a case temperature by a case-temperature measuring means 103. A junction temperature Tj can be obtained accurately by composing an arithmetic means 1 of a loss arithmetic means 11 computing the loss of the semiconductor element from a current value and a voltage value measured, a temperature-difference saturated-value arithmetic means 12 computing the temperature-difference saturated value between the junction temperature and the case temperature on the basis of the loss, a transient temperature difference arithmetic means 13 computing transient temperature difference from the temperature-difference saturated value, and an adder 14 adding the case temperature and the transient temperature difference and acquiring the junction temperature, thus allowing positive overheat protection by a protective means 2. Accordingly, an excess safety design need not be conducted.

10. 实用新型

JPH058761Y2 失效
公开(公告)号：JPH058761Y2
公开(公告)日：1993-03-04
申请号：JP7198484
申请日：1984-05-18
IPC分类号： H02H9/02 , H02H7/00 , H02H7/125 , H02M3/10 , H02M3/155

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