公开(公告)号：US06897766B2

公开(公告)日：2005-05-24

申请号：US10032936

申请日：2001-12-27

申请人： Tadao Mandai ,  Kenji Ikeda

发明人： Tadao Mandai ,  Kenji Ikeda

IPC分类号： B06B1/02 ,  H04B3/36

CPC分类号： B06B1/023 ,  B06B1/0246 ,  B06B2201/53 ,  B06B2201/70

摘要： This invention includes a square wave signal generating circuit 20 for generating a square wave signal whose frequency changes; a MOS transistor 12 which is turned on/off on the basis of the square wave signal to supply a driving current to a vibrator 14; and a frequency shift detecting circuit 24 for detecting a frequency shift between the square wave signal from the square wave generating circuit and a resonance frequency of the vibrator. The shift in the frequency generated by the square wave generating circuit is trimmed by a signal detected by the frequency shift detecting circuit.

公开(公告)号：US07403363B2

公开(公告)日：2008-07-22

申请号：US11244393

申请日：2005-10-06

申请人： Tadao Mandai

发明人： Tadao Mandai

IPC分类号： H02H9/00

CPC分类号： H02J7/0031

摘要： Provided is a switching element including: a first switching element primarily used for formation of a two-way current path; and a second switching element that interrupts a parasitic diode at the time when the first switching element is turned off. The second switching element may be of smaller chip size because it assists the operation of the first switching element, thereby contributing miniaturization of the switching element and reduction in an ON resistance. Furthermore, adoption of the switching element to a protection circuit realizes reduction in the size of the protection circuit.

摘要翻译： 提供一种开关元件，包括：主要用于形成双向电流路径的第一开关元件; 以及在第一开关元件断开时中断寄生二极管的第二开关元件。 第二开关元件可以具有更小的芯片尺寸，因为它有助于第一开关元件的操作，从而有助于开关元件的小型化和降低导通电阻。 此外，将开关元件应用于保护电路实现了保护电路的尺寸的减小。

公开(公告)号：US07477499B2

公开(公告)日：2009-01-13

申请号：US11244391

申请日：2005-10-06

申请人： Tadao Mandai

发明人： Tadao Mandai

IPC分类号： H02H9/00 ,  H02J7/00

CPC分类号： H02J7/0031 ,  H01L27/0251

摘要： Provided is a switching element including: first switching element primarily used for formation of a two-way current path; a second switching element that forms, at the time when the first switching element is turned off, a current path by switching a parasitic diode from another; and a third switching element. The second and third switching elements may be of smaller chip size because they allow a current to flow through them only while the current path of the first switching element is being switched. This contributes miniaturization of the switching element as well as reduction in the ON resistance. Moreover, adoption of the switching element to a protection circuit realizes miniaturization of the protection circuit.

摘要翻译： 提供一种开关元件，包括：主要用于形成双向电流路径的第一开关元件; 第二开关元件，通过从另一开关元件切换寄生二极管，在第一开关元件截止时形成电流路径; 和第三开关元件。 第二和第三开关元件可以具有更小的芯片尺寸，因为它们仅在第一开关元件的电流路径被切换时允许电流流过它们。 这有助于开关元件的小型化以及导通电阻的降低。 此外，将开关元件应用于保护电路实现了保护电路的小型化。

公开(公告)号：US20060076933A1

公开(公告)日：2006-04-13

申请号：US11244393

申请日：2005-10-06

申请人： Tadao Mandai

发明人： Tadao Mandai

IPC分类号： H02J7/00

CPC分类号： H02J7/0031

摘要： Provided is a switching element including: a first switching element primarily used for formation of a two-way current path; and a second switching element that interrupts a parasitic diode at the time when the first switching element is turned off. The second switching element may be of smaller chip size because it assists the operation of the first switching element, thereby contributing miniaturization of the switching element and reduction in an ON resistance. Furthermore, adoption of the switching element to a protection circuit realizes reduction in the size of the protection circuit.

摘要翻译： 提供一种开关元件，包括：主要用于形成双向电流路径的第一开关元件; 以及在第一开关元件断开时中断寄生二极管的第二开关元件。 第二开关元件可以具有更小的芯片尺寸，因为它有助于第一开关元件的操作，从而有助于开关元件的小型化和降低导通电阻。 此外，将开关元件应用于保护电路实现了保护电路的尺寸的减小。

公开(公告)号：US20060076931A1

公开(公告)日：2006-04-13

申请号：US11244391

申请日：2005-10-06

申请人： Tadao Mandai

发明人： Tadao Mandai

IPC分类号： H02J7/00

CPC分类号： H02J7/0031 ,  H01L27/0251

摘要： Provided is a switching element including: first switching element primarily used for formation of a two-way current path; a second switching element that forms, at the time when the first switching element is turned off, a current path by switching a parasitic diode from another; and a third switching element. The second and third switching elements may be of smaller chip size because they allow a current to flow through them only while the current path of the first switching element is being switched. This contributes miniaturization of the switching element as well as reduction in the ON resistance. Moreover, adoption of the switching element to a protection circuit realizes miniaturization of the protection circuit.

公开(公告)号：US20070007588A1

公开(公告)日：2007-01-11

申请号：US11471733

申请日：2006-06-21

申请人： Hiroyasu Ishida ,  Tadao Mandai ,  Atsuya Ushida ,  Hiroaki Saito

发明人： Hiroyasu Ishida ,  Tadao Mandai ,  Atsuya Ushida ,  Hiroaki Saito

IPC分类号： H01L29/94 ,  H01L21/336

CPC分类号： H01L29/7813 ,  H01L29/0696 ,  H01L29/086 ,  H01L29/66734

摘要： A first electrode layer, which comes into contact with a source region, and a second electrode layer, which comes into contact with a body (back gate) region, are provided. The first and second electrode layers are insulated from each other and are extended in a direction different from an extending direction of a trench. It is possible to individually apply potentials to the first and second electrode layers, and to perform control for preventing a reverse current caused by a parasitic diode. Therefore, a bidirectional switching element can be realized by use of one MOSFET.

摘要翻译： 设置与源极区域接触的第一电极层和与主体（背栅极）区域接触的第二电极层。 第一和第二电极层彼此绝缘并且沿与沟槽的延伸方向不同的方向延伸。 可以分别对第一和第二电极层施加电位，并且执行用于防止由寄生二极管引起的反向电流的控制。 因此，可以通过使用一个MOSFET来实现双向开关元件。

公开(公告)号：US20060118866A1

公开(公告)日：2006-06-08

申请号：US11274481

申请日：2005-11-16

申请人： Masamichi Yanagida ,  Tadao Mandai

发明人： Masamichi Yanagida ,  Tadao Mandai

IPC分类号： H01L29/76

CPC分类号： H01L29/7825 ,  H01L27/0266 ,  H01L29/0696 ,  H01L29/41758 ,  H01L2224/0554 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/16245 ,  H01L2924/00014 ,  H01L2924/13091 ,  H01L2924/00 ,  H01L2224/05599 ,  H01L2224/0555 ,  H01L2224/0556

摘要： In a preferred embodiment of the present invention, first MOS transistors connected to first source electrodes and second MOS transistors connected to second source electrodes are arranged alternately next to each other on one chip. Different potentials are applied respectively to the first source electrodes and to the second source electrodes, and both of the MOS transistors are controlled with respect to an ON or OFF state by one gate terminal. Currents flow along surroundings of trenches, whereby on-resistance is reduced.

摘要翻译： 在本发明的优选实施例中，连接到第一源电极的第一MOS晶体管和连接到第二源极的第二MOS晶体管在一个芯片上彼此交替布置。 分别对第一源极和第二源电极施加不同的电位，并且通过一个栅极端子相对于导通或截止状态来控制两个MOS晶体管。 电流沿着沟槽周围流动，从而降低了导通电阻。

公开(公告)号：US07414822B2

公开(公告)日：2008-08-19

申请号：US11018826

申请日：2004-12-21

申请人： Kenichi Hosaka ,  Tadao Mandai

发明人： Kenichi Hosaka ,  Tadao Mandai

IPC分类号： H01H47/00

CPC分类号： H05B41/2825 ,  H05B41/2856

摘要： A current control circuit controls a current from a current drawing circuit to which a primary coil of a transformer is connected. A first N channel transistor has a source connected to the current drawing terminal and has a body diode that directs a current from the source to a drain. A second N channel transistor has a drain connected to the drain of the first N channel transistor and a source connected to a ground. The second N channel transistor has a body diode that directs a current from the source to the drain. The first and second N channel transistors are turned on to direct a current from the current drawing terminal to the ground via the first and second N channel transistors. The first and second N channel transistors are turned off to stop the current from the current drawing terminal. Further, the body diode of the first N channel transistor inhibits current flowing from the ground to the primary coil of the transformer.

摘要翻译： 电流控制电路控制来自变压器的初级线圈所连接的电流牵引电路的电流。 第一N沟道晶体管具有连接到引流端子的源极，并且具有引导电流从源极到漏极的体二极管。 第二N沟道晶体管具有连接到第一N沟道晶体管的漏极的漏极和连接到地的源极。 第二N沟道晶体管具有将电流从源极引导到漏极的体二极管。 第一和第二N沟道晶体管被导通以经由第一和第二N沟道晶体管将电流从引线端引导到地。 关闭第一和第二N沟道晶体管，以阻止来自当前绘图终端的电流。 此外，第一N沟道晶体管的体二极管抑制从接地到变压器的初级线圈的电流。

公开(公告)号：US20050140314A1

公开(公告)日：2005-06-30

申请号：US11018826

申请日：2004-12-21

申请人： Kenichi Hosaka ,  Tadao Mandai

发明人： Kenichi Hosaka ,  Tadao Mandai

IPC分类号： H05B41/24 ,  G05F3/16 ,  H03K17/16 ,  H03K17/695 ,  H05B41/282 ,  H05B41/285 ,  H05B37/02

CPC分类号： H05B41/2825 ,  H05B41/2856

摘要： A current control circuit controls a current from a current drawing circuit to which a primary coil of a transformer is connected. A first N channel transistor has a source connected to the current drawing terminal and has a body diode that directs a current from the source to a drain. A second N channel transistor has a drain connected to the drain of the first N channel transistor and a source connected to a ground. The second N channel transistor has a body diode that directs a current from the source to the drain. The first and second N channel transistors are turned on to direct a current from the current drawing terminal to the ground via the first and second N channel transistors. The first and second N channel transistors are turned off to stop the current from the current drawing terminal. Further, the body diode of the first N channel transistor inhibits current flowing from the ground to the primary coil of the transformer.

摘要翻译： 电流控制电路控制来自变压器的初级线圈所连接的电流牵引电路的电流。 第一N沟道晶体管具有连接到引流端子的源极，并且具有引导电流从源极到漏极的体二极管。 第二N沟道晶体管具有连接到第一N沟道晶体管的漏极的漏极和连接到地的源极。 第二N沟道晶体管具有将电流从源极引导到漏极的体二极管。 第一和第二N沟道晶体管被导通以经由第一和第二N沟道晶体管将电流从引线端引导到地。 关闭第一和第二N沟道晶体管，以阻止来自当前绘图终端的电流。 此外，第一N沟道晶体管的体二极管抑制从接地到变压器的初级线圈的电流。

公开(公告)号：US06831428B2

公开(公告)日：2004-12-14

申请号：US10413582

申请日：2003-04-15

申请人： Tadao Mandai

发明人： Tadao Mandai

IPC分类号： H02K3500

CPC分类号： B06B1/023

摘要： In order to quickly stop vibration of a vibrator of a vibrator controlling circuit, according to the present invention, an intermittent signal is generated by a spring vibration control integrated circuit, a switching element is turned on/off based on the intermittent signal from the spring vibration control integrated circuit, an intermittent electric current is supplied to a spring vibrator by switching of the switching circuit and the spring vibrator is vibrated. When vibration of the spring vibrator is stopped, a signal opposite to that when the spring vibrator is vibrated is applied from the spring vibration control integrated circuit to the switching element so as to cause the spring vibrator to generate a force to attenuate vibration and to stop the vibrator from vibrating.

摘要翻译： 为了快速停止振动器控制电路的振动器的振动，根据本发明，通过弹簧振动控制集成电路产生间歇信号，基于来自弹簧的间歇信号，开关元件被接通/断开 振动控制集成电路，通过开关电路的切换将弹簧振子供给间歇电流，弹簧振动器振动。 当弹簧振动器的振动停止时，与弹簧振动器振动相反的信号从弹簧振动控制集成电路施加到开关元件，以使弹簧振动器产生衰减振动并停止的力 振动器振动。