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1. 发明专利

JP6167244B2 電力変換装置、モータ装置および逆変換器モジュール有权
公开(公告)号：JP6167244B2
公开(公告)日：2017-07-19
申请号：JP2016545149
申请日：2014-08-27
申请人：株式会社日立製作所
发明人：石垣隆士 , 景山寛
IPC分类号： H02M1/08 , H02M1/38 , H02M7/48
CPC分类号： H02M7/48 , H02M7/5387 , Y02B70/1483

2. 发明专利

JP2009055685A Drive circuit 审中-公开
标题翻译：驱动电路
公开(公告)号：JP2009055685A
公开(公告)日：2009-03-12
申请号：JP2007218669
申请日：2007-08-24
申请人： Toyota Industries Corp , 株式会社豊田自動織機
发明人： HIRABAYASHI NOBUO
IPC分类号： H02M1/08 , H02M1/38 , H02M7/537 , H02M7/5387 , H03K17/08 , H03K17/687
摘要： PROBLEM TO BE SOLVED: To provide a drive circuit which can drive switching elements to prevent two switching element connected in series from being turned on simultaneously in a bridge system circuit. SOLUTION: The drive circuit 1 turns on/off MOSFETs 32 to 35 in bridge system circuit 31, wherein the MOSFETs 32, 33 and MOSFETs 34, 35 each connected in series are connected in parallel to DC power source 36 respectively. The drive circuit comprises a capacitor 12 which stores charge for turning on an npn bipolar transistor 22 for elevating the potential of an output terminal 24 to turn on the MOSFET 32, and a capacitor 13 which stores charge for turning on a pnp bipolar transistor 23 drawing out the charge stored in a parasitic capacitance between a drain and a gate of the MOSFET 33 when the MOSFET 32 is turned on. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以驱动开关元件以驱动串联连接的两个开关元件在桥接系统电路中同时导通的驱动电路。解决方案：驱动电路1接通/断开桥接系统电路31中的MOSFET 32至35，其中串联连接的MOSFET 32,33和MOSFET34,35分别与DC电源36并联连接。驱动电路包括电容器12，其存储用于导通npn双极晶体管22的电荷，用于提高输出端子24的电位以导通MOSFET 32;以及电容器13，其存储用于导通pnp双极晶体管23的电荷绘图当MOSFET32导通时，存储存储在MOSFET33的漏极和栅极之间的寄生电容的电荷。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2007527190A Adaptive dead-time setting circuit and method for generating the 审中-公开
标题翻译：空值
公开(公告)号：JP2007527190A
公开(公告)日：2007-09-20
申请号：JP2006554257
申请日：2005-02-22
申请人：インターナショナルレクティファイアーコーポレイション
发明人：ルスイウリア , ウィルヘルムデイナ , グリーンピーター
IPC分类号： H02M7/48 , G05F1/40 , H02M1/38
CPC分类号： H02M1/38 , H03K17/166 , H03K17/284 , H03K17/6871 , H03K2217/0063 , H03K2217/0072 , H03K2217/0081
摘要：【課題】ハーフブリッジ回路内のスイッチングデバイスのハードスイッチングを阻止する。
【解決手段】オシレータ駆動型のハーフブリッジ回路のための適応型デッドタイム設定回路であって、ハーフブリッジ回路の中間接続点における電圧を検出する検出回路と、前記電圧のＨレベルからＬレベルへの遷移を示す第１の信号を発生する第１の回路と、少なくとも前記第１の信号に基づいて、オシレータを制御する適応型デッドタイム信号を出力する出力回路とを備えてなる回路である。
【選択図】図３
摘要翻译：高电压失调检测电路在开关半桥的中点登记电压，并且可以确定中点电压何时达到给定值以避免半桥开关中的硬切换。开关半桥的中点电压通过缓冲器施加到电流限制的MOSFET，以产生反映开关半桥中点电压的电压。由MOSFET产生的电压可以提供给具有阈值输入的比较器，以获得指示开关半桥的开关何时导通以避免硬切换的信号。自适应死区时间电路和方法可以包括上述感测电路，用于产生指示中点电压的高到低转换的第一信号的第一电路; 以及用于基于此产生自适应死区时间输出信号的输出电路。第二电路可以产生指示电压的低到高转换的第二信号; 其中所述输出电路基于所述第一和第二信号两者产生所述自适应死区时间输出信号。第二电路优选地通过再现第一信号来产生第二信号。第一电路可以通过响应于脉冲对电容器充电来产生第一信号，并且第二电路可以通过对与所述第一电容器相对应的第二电容器进行充电来产生第二信号，并且自适应死区时间输出信号可以响应于在第一和第二电容器上充电。

4. 发明专利

JP2004328812A Dc-dc converter and control circuit thereof 有权
公开(公告)号：JP2004328812A
公开(公告)日：2004-11-18
申请号：JP2003115861
申请日：2003-04-21
申请人： Toshiba Corp , 株式会社東芝
发明人： YOSHIKAWA NORIO
IPC分类号： H02M7/537 , H02M1/38 , H02M3/155 , H02M3/158
CPC分类号： H02M1/38 , H02M3/1588 , Y02B70/1466
摘要： PROBLEM TO BE SOLVED: To provide a DC-DC converter control circuit of good response characteristics, and a DC-DC converter comprising the DC-DC converter control circuit like this. SOLUTION: The DC-DC converter control circuit comprises a transistor Q1 on a high side and a transistor Q2 on a low side. A control circuit 100 detects on/off states of the transistor Q1 on the high side. In order to switch the off-state of the transistor Q2 on the low side to an on-state, it switches the transistor Q2 on the low side to the on-state only after detecting that the transistor Q1 on the high side has been switched from the on-state to the off-state. COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2004531921A Self-excited oscillation circuit for driving the switching device of the high-side and low-side having a variable width pulse 审中-公开
公开(公告)号：JP2004531921A
公开(公告)日：2004-10-14
申请号：JP2002563588
申请日：2002-01-15
申请人：インターナショナル・レクチファイヤー・コーポレーションInternational Rectifier Corporation
发明人：アブドウリンエドガー , アダムスジョナサン
IPC分类号： H02M1/08 , H02M1/38 , H02M7/537 , H02M7/538 , H03K3/017 , H03K17/06 , H03K17/687 , H05B41/282 , H05B41/285 , H02M7/48
CPC分类号： H02M1/38 , H02M7/538 , H03K17/063 , H05B41/2828 , H05B41/2856 , Y02B20/185
摘要：ハーフブリッジ構成で接続された、ハイ側とロー側のＭＯＳＦＥＴのようなスイッチング素子（５０，５２）を駆動する自励発振回路。この回路は、持続時間すなわち幅を変える交互に切り替わるゲートパルスを提供することによりスイッチング素子（５０，５２）を交互にターンオンする。そのパルスは、相互誘導を防止するため、デッドタイムにより分離される。起動されると、パルスは最小持続時間のゼロから最大持続時間に増加し、デッドタイムの持続時間は同時にその最小持続時間に減少し、ソフトスタートを与える。その回路は、各サイクルが、立ち上がり部分と、続いてロー部分に向かう立ち下がりエッジとを含む周期信号を供給するため、発振器（６０）を含む。参照回路（９０）は、可変参照信号を供給する。比較器（１００）は、周期信号と可変参照信号とに対して応答し、そのパルス幅が参照信号に比例するパルス出力信号を供給する。発振器（６０）はまた、切り替え期間のロー部分の間にゲートパルスを供給し、参照回路（９０）は、起動時に最大値まで増加する立ち上がり信号を供給する回路を含む。サンプリング回路（１０２）は、各ゲートパルスに応答し立ち上がり信号の値をサンプリングし、参照回路（９０）は、各サンプルされた値から次のゲートパルスまで可変参照信号を得る。この回路は、好ましくは外部接続のための適切なピンを有する集積回路で実現される。

6. 发明专利

JP2004056983A Power circuit 有权
公开(公告)号：JP2004056983A
公开(公告)日：2004-02-19
申请号：JP2002215246
申请日：2002-07-24
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： NISHIMAKI TATSUO
IPC分类号： H02M3/155 , H02M1/38 , H02M3/158 , H03K17/16 , H03K17/687
CPC分类号： H02M1/38 , H02M3/1588 , Y02B70/1466
摘要： PROBLEM TO BE SOLVED: To provide a power circuit which can raise the conversion efficiency by preventing a through current from flowing from high side to low side.
SOLUTION: This power circuit has a DC-DC converting circuit I(QP1, QN1, L1, and C0) which has a PMOS(QP1) and an NMOS(QN1) and gets PWM-controlled DC output voltage by switching them on alternately by PWM signals, an error amplifier 40 which gets an error signal by comparing the output of the above DC-DC converting circuit with a reference voltage value, and PWM means (31A and 32) which generate PWM signals with their pulse width controlled by the above error signals and supply them to each gate of the above DC-DC converting circuit. An output driver 31A constituting the above PWM means switches on the NMOS(QN1) after the PMOS(QP1) is switched off surely by switching on the NMOS(QN1) when the middle node potential VMA comes to specified potential or under after the PMOS(QP1) is switched off. Also, it switches on the PMOS(QP1) after the NMOS(QN1) is switched off. As a result, the PMOS(QP1) and the NMOS(QN1) are not switched on concurrently and a through current never flows.
COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2004023846A Drive apparatus 有权
公开(公告)号：JP2004023846A
公开(公告)日：2004-01-22
申请号：JP2002172938
申请日：2002-06-13
申请人： Rohm Co Ltd , ローム株式会社
发明人： UMEMOTO SEIKI , TAKEMURA KO
IPC分类号： H02M3/155 , H02M1/08 , H02M1/38 , H02M3/158
CPC分类号： H02M1/38 , H02M3/1588 , Y02B70/1466
摘要： PROBLEM TO BE SOLVED: To provide a drive apparatus capable of preventing simultaneous turning-on of an FET independent of characteristics or kind of an element.
SOLUTION: An FET drive apparatus 1 comprises a detecting part (CMP1, CMP2, E1, E2, OR2) which detects on/off state of body diodes BD1 and BD2 that accompany FET N1 and N2 connected in series across different two potentials. At the timing of detecting that the body diodes BD1 and BD2 are turned on, either the FET N1 or N2 is shifted to an on state.
COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2002027737A DC-DC CONVERTER, CONTROL CIRCUIT, MONITOR CIRCUIT AND ELECTRONIC APPARATUS THEREFOR AND MONITORING METHOD THEREOF 失效
公开(公告)号：JP2002027737A
公开(公告)日：2002-01-25
申请号：JP2000200917
申请日：2000-07-03
申请人： FUJITSU LTD
发明人： SAEKI MITSUO , NAKAZAWA JIYUUSHIYO , MATSUDA KOICHI
IPC分类号： H02M3/155 , H02M1/38 , H02M3/158
摘要： PROBLEM TO BE SOLVED: To take a punch through current into consideration regarding a synchronous commutator DC-DC converter, a control circuit for a DC-DC converter which constitutes a DC-DC converter, an electronic apparatus provided with a DC-DC converter, etc. SOLUTION: When both FET's 521, 523 turn to the ON-state simultaneously, and a punch through current flows, an amplifier 541 and an AND gate 542 detect the current and latch it. A switching circuit 521 is switched to the ground side, and operation of a PWM comparator 533 is stopped, thereby turning both FET's 521, 523 into the OFF-state.

9. 发明专利

JP3117696B2 失效
公开(公告)号：JP3117696B2
公开(公告)日：2000-12-18
申请号：JP11777690
申请日：1990-05-09
IPC分类号： H02M1/08 , H02M1/00 , H02M1/38 , H02M7/538 , H03K17/0412 , H03K17/06 , H03K17/687

10. 发明专利

JPH11178334A SYNCHRONOUS RECTIFYING CIRCUIT, FORWARD CONVERTER PROVIDED WITH THE SAME AND SYNCHRONOUS RECTIFICATION METHOD 失效
公开(公告)号：JPH11178334A
公开(公告)日：1999-07-02
申请号：JP33904497
申请日：1997-12-09
申请人： IWAKI ELECTRON CORP LTD
发明人： MURAMATSU MITSUYOSHI , BITAANAGE ANANDA
IPC分类号： H02M7/21 , H02M1/38 , H02M3/28
摘要： PROBLEM TO BE SOLVED: To surely prevent cross conduction such that a rectifying transistor and a commutating transistor become continuous simultaneously. SOLUTION: In a forward converter which obtains a DC output by connecting a primary winding L1 of a transformer T and a switching device Q0 in series between DC input terminals and rectifying and commutating an output generated by the secondary winding L2 of the transformer T, a rectifying transistor Q1 and a commutating transistor Q2 connected in series to the secondary winding L2 are turned off complimentarily, on the basis of a switching signal A and a positive pulse voltage B of the second winding L2. The conmutating transistor Q2 is turned off, being adjusted to the turn-on of the switching device Q0, and the rectifying transistor Q1 is turned on being adjusted to the rise of the positive pulse voltage B. On the other hand, the rectifying transistor Q1 is turned off being adjusted to the turn-off of the switching device Q0, and the commutating transistor Q2 is to be turned on being adjusted to the fall of the positive voltage B.

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