公开(公告)号：US06320301B1

公开(公告)日：2001-11-20

申请号：US09291730

申请日：1999-04-14

申请人： Takashi Noma ,  Ken Takakura ,  Yasuyuki Morishima

发明人： Takashi Noma ,  Ken Takakura ,  Yasuyuki Morishima

IPC分类号： H01L4104

CPC分类号： H01L41/044 ,  H01L41/107 ,  H05B41/2822 ,  H05B41/2824

摘要： A piezoelectric-transformer inverter includes a piezoelectric transformer for supplying a transformed voltage to a load connected to a secondary electrode thereof. A first coil and a first transistor are connected to one primary electrode of the piezoelectric transformer, and a second coil and a second transistor are connected to the other primary electrode of the piezoelectric transformer. The first and second transistors are alternately turned on and off such that the phase of the voltage applied between the primary electrodes is reversed cyclically. The operation frequency is controlled such that an AC current flowing through the load is maintained at a predetermined level. The piezoelectric transformer has a piezoelectric substrate. In a first half region of the piezoelectric substrate, a plurality of electrode films are layered in order to form the primary electrodes. The secondary electrode is formed on an end surface of the piezoelectric substrate opposite to the primary electrodes. The piezoelectric substrate is polarized in a first direction in the first half region where the primary electrodes exist and is polarized in a second direction different from the first direction in a second half region where the secondary electrode exists. The piezoelectric transformer operates in a half wavelength mode.

摘要翻译： 压电变压器逆变器包括用于向连接到其二次电极的负载提供变换电压的压电变压器。 第一线圈和第一晶体管连接到压电变压器的一个主电极，第二线圈和第二晶体管连接到压电变压器的另一个主电极。 第一和第二晶体管被交替地导通和截止，使得施加在主电极之间的电压的相位被循环地反转。 控制工作频率使得流过负载的交流电流保持在预定水平。 压电变压器具有压电基板。 在压电基板的第一半区域中，为了形成初级电极而层叠多个电极膜。 二次电极形成在与主电极相对的压电基板的端面上。 压电基板在存在第一电极的第一半区域中沿第一方向极化，并且在第二半导体存在的第二半区域中在与第一方向不同的第二方向上极化。 压电变压器工作在半波长模式。

公开(公告)号：US06434027B1

公开(公告)日：2002-08-13

申请号：US09625714

申请日：2000-07-26

申请人： Naoto Sano ,  Shingo Kunii ,  Yasuyuki Morishima

发明人： Naoto Sano ,  Shingo Kunii ,  Yasuyuki Morishima

IPC分类号： H02M3335

CPC分类号： H02M3/07 ,  H02M3/156 ,  H02M2003/071

摘要： A switching power supply which is capable of generating several different output voltages and which can be easily miniaturized by using a transformer with a small number of terminals. For example, using a transformer with four terminals and three windings that are connected in series, a rectifying-smoothing circuit having a diode and a capacitor is connected to a connection point of the collector of a switching transistor and the windings. A further pair of rectifying-smoothing circuits having diodes and capacitors is commonly connected to one end of the windings, according to one example. As a result thereof, three voltages are generated.

摘要翻译： 一种开关电源，其能够产生几种不同的输出电压，并且可以通过使用具有少量端子的变压器而容易地小型化。 例如，使用具有串联连接的四个端子和三个绕组的变压器，具有二极管和电容器的整流平滑电路连接到开关晶体管的集电极和绕组的连接点。 根据一个示例，另外一对具有二极管和电容器的整流平滑电路通常连接到绕组的一端。 结果，产生三个电压。

公开(公告)号：US6153962A

公开(公告)日：2000-11-28

申请号：US399279

申请日：1999-09-17

申请人： Takashi Noma ,  Kyoji Toshinari ,  Yasuyuki Morishima

发明人： Takashi Noma ,  Kyoji Toshinari ,  Yasuyuki Morishima

IPC分类号： H05B41/282 ,  H05B41/392 ,  H01L41/08

CPC分类号： H05B41/2822 ,  H05B41/2824 ,  H05B41/3925

摘要： A piezoelectric transformer inverter comprises: a piezoelectric transformer for performing voltage conversion of alternating voltage applied between primary electrodes to supply to a load connected to a secondary electrode; a driving-frequency control unit for controlling load current during driving of the load by changing the driving frequency of the piezoelectric transformer; a chopper unit for chopping input voltage applied into the driving-frequency control unit at a frequency of two or more times as high as the driving frequency and for controlling an average input voltage applied into the driving frequency control unit by changing a duty ratio of the chopping operation; and a dimming unit for intermittently stopping the driving frequency control unit by intermittently stopping the operation of the chopper unit at a frequency smaller than the driving frequency of the piezoelectric transformer, wherein even during a period in which the dimming unit is intermittently stopping the chopper unit, signals having a duty ratio for allowing the chopper unit to perform the chopping operation to be sustained inside the chopper unit.

摘要翻译： 一种压电变压器逆变器包括：压电变压器，用于对施加在主电极之间的交流电压进行电压转换，以供应到连接到次级电极的负载; 驱动频率控制单元，用于通过改变压电变压器的驱动频率来控制负载驱动期间的负载电流; 斩波单元，用于以驱动频率的两倍或更多倍的频率斩波施加到驱动频率控制单元中的输入电压，并且通过改变驱动频率控制单元的占空比来控制施加到驱动频率控制单元的平均输入电压 切割操作; 以及调光单元，用于通过以比所述压电变压器的驱动频率小的频率间歇地停止所述斩波单元的操作来间歇地停止所述驱动频率控制单元，其中即使在所述调光单元间歇地停止所述斩波单元 具有允许斩波器单元进行斩波器内的斩波操作的占空比的信号。

公开(公告)号：US6004657A

公开(公告)日：1999-12-21

申请号：US585171

申请日：1996-01-11

申请人： Akiyoshi Moriyasu ,  Yasuyuki Morishima

发明人： Akiyoshi Moriyasu ,  Yasuyuki Morishima

IPC分类号： H01L23/12 ,  H01L23/538 ,  H05K1/03 ,  H05K1/16 ,  H05K3/46 ,  B32B15/00 ,  H05K1/14

CPC分类号： H01L23/5385 ,  H05K1/162 ,  H05K3/4614 ,  H05K3/4629 ,  H01L2924/0002 ,  H05K1/0306 ,  H05K2201/09309 ,  H05K3/4623 ,  H05K3/4688 ,  Y10S428/901 ,  Y10T428/24926

摘要： A high degree of freedom of design and high density mounting are achieved with a laminated electronic part having a structure such that the occurrence of floating capacitance can be restrained. The laminated electronic part is formed of a first layer and a second layer which are joined to each other with a third layer sandwiched therebetween. The first and second layers may be formed of dielectrics having substantially different respective dielectric constants, and the third layer is formed of a dielectric having a dielectric constant lower than that of the first and second layers, or an insulator. Connecting conductors are provided inside the third layer. A through-conductor inside the first layer can be connected to a through-conductor inside the second, for example, layer via the connecting conductor inside the third layer.

摘要翻译： 通过具有能够抑制漂浮电容的发生的结构的层叠电子部件，实现了高设计自由度和高密度安装。 层叠电子部件由夹在其间的第三层彼此接合的第一层和第二层形成。 第一层和第二层可以由具有基本上不同的介电常数的电介质形成，并且第三层由介电常数低于第一和第二层或介电常数绝缘体的电介质形成。 连接导体设在第三层内。 第一层内的贯通导体可以经由第三层内的连接导体连接到第二层（例如）层内的通孔。

公开(公告)号：US06654221B2

公开(公告)日：2003-11-25

申请号：US09923987

申请日：2001-08-07

申请人： Takashi Noma ,  Yasuyuki Morishima

发明人： Takashi Noma ,  Yasuyuki Morishima

IPC分类号： H02H904

CPC分类号： H05B41/2855

摘要： Current flowing through a cold cathode tube is detected and converted to a voltage with a resistor, and is fed to a tube current control circuit. The tube current control circuit drives a drive circuit to control a voltage applied to a piezoelectric transformer. Current from a constant-current source is used to charge a fault protection capacitor. A transistor is allowed to conduct while current flows through the cold cathode tube so that a voltage is developed in a resistor, and thereby, an electric charge is prevented from being stored in the fault protection capacitor, thereby stopping the operation of a fault protection circuit.

摘要翻译： 检测流过冷阴极管的电流并将其转换成具有电阻的电压，并将其馈送到管电流控制电路。 管电流控制电路驱动驱动电路来控制施加到压电变压器的电压。 来自恒流源的电流用于对故障保护电容器充电。 允许晶体管导通，同时电流流过冷阴极管，使得在电阻器中产生电压，从而防止电荷存储在故障保护电容器中，从而停止故障保护电路的操作 。

公开(公告)号：US06229720B1

公开(公告)日：2001-05-08

申请号：US09535892

申请日：2000-03-27

申请人： Takashi Noma ,  Yasuyuki Morishima

发明人： Takashi Noma ,  Yasuyuki Morishima

IPC分类号： H02M112

CPC分类号： H05B41/2822 ,  H02M7/537 ,  H02M2001/007 ,  H05B41/3925

摘要： A piezoelectric transformer inverter can suppress ripples generated by the oscillations of a transformer, and can reduce the possibility of occurrence of beats in the inverter. In this piezoelectric transformer inverter, a switching element is disposed at a stage before an inverter circuit driving a discharge tube, and the switching element is switched on and off by switching signals from a chopper-duty control unit. Then, an input voltage is converted into a rectangular-wave voltage having a chopper circuit frequency to be supplied to the inverter circuit, and a frequency of n times a driving frequency of the inverter circuit and a chopper frequency of the chopper circuit are set in such a manner that these two frequencies are not close to each other.

摘要翻译： 压电变压器逆变器可以抑制由变压器的振荡产生的波纹，并且可以减少逆变器中发生节拍的可能性。 在该压电变压器逆变器中，开关元件设置在逆变器电路驱动放电管之前的阶段，并且通过切换来自斩波器占空比控制单元的信号来接通和断开开关元件。 然后，将输入电压转换为具有斩波电路频率的矩形波电压供给到逆变器电路，将逆变器电路的驱动频率的n倍的频率和斩波电路的斩波频率设定在 这样的方式使得这两个频率彼此不接近。

公开(公告)号：US6144139A

公开(公告)日：2000-11-07

申请号：US409807

申请日：1999-09-30

申请人： Takashi Noma ,  Yasuyuki Morishima ,  Hidehiko Sugimoto

发明人： Takashi Noma ,  Yasuyuki Morishima ,  Hidehiko Sugimoto

IPC分类号： H02M3/24 ,  H02M7/48 ,  H05B41/24 ,  H05B41/282 ,  H05B41/392 ,  H01L41/08

CPC分类号： H05B41/2822 ,  H05B41/2827 ,  H05B41/2828 ,  H05B41/3925

摘要： A piezoelectric transformer inverter includes: a piezoelectric transformer, one of whose primary electrodes is grounded, which performs voltage conversion of alternating voltage or direct current voltage applied between the primary electrodes and supplies the converted voltage to a load connected to a secondary electrode; a drive unit for supplying alternating voltage or direct current voltage between the primary electrodes of the piezoelectric transformer; a low-pass type resonance circuit unit inserted between the output of the drive unit and the primary electrodes of the piezoelectric transformer; a duty control unit for controlling ON-Duty of the drive unit so that a value of current flowing into the load coincides with a targeted current value; a phase-difference detection unit for detecting a phase difference between the input voltage and the output voltage of the piezoelectric transformer; and a frequency control unit for controlling a driving frequency of the drive unit.

摘要翻译： 一种压电变压器逆变器包括：压电变压器，其一个主电极接地，其施加在主电极之间的交流电压或直流电压的电压转换，并将转换的电压提供给连接到次级电极的负载; 用于在压电变压器的主电极之间提供交流电压或直流电压的驱动单元; 插入在驱动单元的输出端和压电变压器的主电极之间的低通型谐振电路单元; 负责控制单元，用于控制驱动单元的占空比，使得流入负载的电流值与目标电流值一致; 相位差检测单元，用于检测压电变压器的输入电压和输出电压之间的相位差; 以及用于控制驱动单元的驱动频率的频率控制单元。

公开(公告)号：US06625031B2

公开(公告)日：2003-09-23

申请号：US09984679

申请日：2001-10-16

申请人： Naoto Sano ,  Yasuyuki Morishima

发明人： Naoto Sano ,  Yasuyuki Morishima

IPC分类号： H05K114

CPC分类号： H05K1/142 ,  H05K1/141 ,  H05K1/182 ,  H05K3/368 ,  H05K2201/09072 ,  H05K2201/1034 ,  H05K2201/10477

摘要： A part having a large height contained in a module part is placed in a first cut-off portion formed in a part-mounting substrate to be mounted. Moreover, the module part itself is placed in a second cut-off portion formed in a mother board to be mounted.

公开(公告)号：US06184631B2

公开(公告)日：2001-02-06

申请号：US09526961

申请日：2000-03-16

申请人： Takashi Noma ,  Yasuyuki Morishima

发明人： Takashi Noma ,  Yasuyuki Morishima

IPC分类号： H05B3702

CPC分类号： H05B41/2822 ,  H05B41/3925

摘要： A piezoelectric inverter is disclosed. In the piezoelectric inverter, an input voltage controller, having a switching transistor and a current circulatingelement, converts an input voltage into a rectangular pulse alternating-current voltage. A piezoelectric transformer driver, having an inductive element, outputs an alternating-current voltage having a substantially constant frequency lower than the frequency of the alternating-current voltage output from the input voltage controller. A load current detect or detects a load current flowing through a discharge tube connected to a piezoelectric transformer. A duty factor controller controls the duty factor of the rectangular pulse of the input voltage controller in response to the output of the load current detector so that the load current coincides with a substantially constant target current value. The piezoelectric inverter thus controls the mean voltage of the alternating-current voltage applied to the piezoelectric transformer.

摘要翻译： 公开了一种压电逆变器。 在压电逆变器中，具有开关晶体管和电流循环元件的输入电压控制器将输入电压转换为矩形脉冲交流电压。 具有感应元件的压电变压器驱动器输出具有比从输入电压控制器输出的交流电压的频率低的基本上恒定的频率的交流电压。 负载电流检测或检测流过连接到压电变压器的放电管的负载电流。 负载因子控制器响应于负载电流检测器的输出控制输入电压控制器的矩形脉冲的占空因数，使得负载电流与基本上恒定的目标电流值一致。 因此，压电变换器控制施加到压电变压器的交流电压的平均电压。

公开(公告)号：US6013969A

公开(公告)日：2000-01-11

申请号：US281683

申请日：1999-03-30

申请人： Takashi Noma ,  Yasuyuki Morishima

发明人： Takashi Noma ,  Yasuyuki Morishima

IPC分类号： H02M3/24 ,  H02M7/537 ,  H02M7/538 ,  H05B41/24 ,  H05B41/282 ,  H05B41/392 ,  H01L41/08

CPC分类号： H02M7/48 ,  H05B41/2822

摘要： A boosting drive circuit includes first and second series combinations of a coil and a transistor. The two series combination of a coil and a transistor are connected in parallel. The middle points between the coils and the transistors are connected to respective primary electrodes of a piezoelectric transformer. The transistors are alternately operated with a two-phase drive circuit. Thus, a boosting drive circuit providing for the class "semi-E" operation is formed. A driving voltage control circuit controls an average voltage applied to the input terminal of the boosting drive circuit to ensure that current on the secondary electrode side of the piezoelectric transformer is controlled at a predetermined value is provided between the input power supply and the boosting drive circuit. A driving frequency control circuit changes the driving frequency of the transistors in the boosting drive circuit in such a manner that the phase difference between an alternating voltage applied to the primary electrodes of the piezoelectric transformer and an alternating current flowing in the load is controlled at a predetermined value.

摘要翻译： 升压驱动电路包括线圈和晶体管的第一和第二串联组合。 线圈和晶体管的两个串联组合并联。 线圈和晶体管之间的中间点连接到压电变压器的主要电极。 晶体管与两相驱动电路交替工作。 因此，形成提供“半-E”类操作的升压驱动电路。 驱动电压控制电路控制施加到升压驱动电路的输入端子的平均电压，以确保在压电变压器的次级电极侧的电流被控制在预定值之间，在输入电源和升压驱动电路之间 。 驱动频率控制电路以这样的方式改变升压驱动电路中的晶体管的驱动频率，使得施加到压电变压器的主电极的交流电压与在负载中流动的交流电流之间的相位差被控制在 预定值。