公开(公告)号：US4725936A

公开(公告)日：1988-02-16

申请号：US26204

申请日：1987-03-16

申请人： Akira Nakajima ,  Masayasu Doi ,  Kenji Iida

发明人： Akira Nakajima ,  Masayasu Doi ,  Kenji Iida

IPC分类号： G05F1/10 ,  H02M3/00 ,  H02M3/335

CPC分类号： H02M3/33507

摘要： A DC-DC converter converts a DC input to a predetermined high-voltage DC output according to a predetermined control signal. An output unit has a pair of high- and low-voltage-side output paths and supplies the predetermined high-voltage DC output to a load. An output variation detecting unit has a resistor voltage dividing circuit including high- and low-voltage-side resistors connected in series between the pair of output paths and detects a variation in predetermined high-voltage DC output that follows a variation in the load. An inner shield shields the exterior of the resistor voltage dividing circuit. The inner shield is electrically connected to a node of the high- and-low voltage-side resistors. An outer shield shields the exterior of the inner shield. The outer shield is electrically connected to the low voltage-side output path of the pair of output paths. A control unit receives a voltage component generated across both ends of the low-voltage-side resistor of the resistor voltage dividing circuit, generates the predetermined control signal in accordance with the voltage component, and supplies the predetermined control signal to the DC-DC converter.

摘要翻译： DC-DC转换器根据预定的控制信号将DC输入转换成预定的高压DC输出。 输出单元具有一对高压侧和低压侧输出路径，并将预定的高压直流输出提供给负载。 输出变化检测单元具有电阻分压电路，该电阻分压电路包括串联连接在一对输出路径之间的高压侧电阻器和低压侧电阻器，并且检测随着负载变化而发生的预定高压直流输出的变化。 内屏蔽屏蔽了电阻分压电路的外部。 内屏蔽电连接到高低压侧电阻的节点。 外屏蔽屏蔽内屏蔽的外部。 外屏蔽电连接到该对输出路径的低电压侧输出路径。 控制单元接收在电阻分压电路的低电压侧电阻器的两端产生的电压分量，根据电压分量产生预定的控制信号，并将预定的控制信号提供给DC-DC转换器 。

公开(公告)号：US4716512A

公开(公告)日：1987-12-29

申请号：US903425

申请日：1986-09-04

申请人： Yoshio Takamura ,  Akira Nakajima

发明人： Yoshio Takamura ,  Akira Nakajima

IPC分类号： H02M7/06 ,  H02M7/10 ,  H02M7/25

CPC分类号： H02M7/103

摘要： A multiple step-up rectifier circuit, according to the invention, has a plurality of multiple step-up rectifier circuits, each of which is constituted by a combination of a plurality of diodes connected in series, output capacitors which are connected in parallel with this series circuit of the diodes, and supply capacitors which are charged by the input AC voltages and which supply the voltages to the output capacitors in amounts equal to the discharged voltages thereof. These plurality of multiple step-up rectifier circuits are connected in series, and each of these circuits receives an arbitrary AC voltage and generates a multiple step-up voltage. In these two adjacent circuts, there is the following relation: ##EQU1## where, C.sub.1 is the capacitance of each of the capacitors constituting one of the multiple step-up rectifier circuits; E.sub.1 is the input voltage thereof; I.sub.1 is the value which is obtained by adding the output current of this circuit and all of the output currents of the circuits of the post stage of this circuit; n.sub.1 is the half of the number of supply capacitors of this circuit; C.sub.2 is the capacitance of each of the capacitors constituting the other multiple step-up rectifier circuits; E.sub.2 is the input voltage thereof; I.sub.2 is the value which is derived by adding the output current of the second circuit and all of the output currents of the circuits at the post stage of this circuit; and n.sub.2 is the half of the number of the supply capacitors of the second circuit.

摘要翻译： 根据本发明的多级升压整流电路具有多个多个升压整流电路，每个电路由串联连接的多个二极管的组合构成，与此并联连接的输出电容器 二极管的串联电路，以及由输入的交流电压充电的供给电容器，并以与其放电电压相等的量向输出电容器供给电压。 这些多个升压整流电路串联连接，这些电路中的每一个接收任意的AC电压并产生多次升压电压。 在这两个相邻的电路中，存在以下关系：其中，C1是构成多个升压整流电路之一的每个电容器的电容; E1是其输入电压; I1是通过将该电路的输出电流和该电路的后级的电路的所有输出电流相加而获得的值; n1是该电路的电源电容数量的一半; C2是组成其他多个升压整流电路的每个电容器的电容; E2是其输入电压; I2是通过在该电路的后级加上第二电路的输出电流和电路的所有输出电流而导出的值; n2是第二电路的供电电容器的数量的一半。

公开(公告)号：US4667280A

公开(公告)日：1987-05-19

申请号：US664853

申请日：1984-10-25

申请人： Yoshio Takamura ,  Akira Nakajima

发明人： Yoshio Takamura ,  Akira Nakajima

IPC分类号： H02M7/06 ,  H02M7/10 ,  H02M3/18

CPC分类号： H02M7/103

摘要： A step-up rectifier circuit includes first and second input terminals for applying AC outputs of opposite polarities, a third input terminal connected between the first and second input terminals, a plurality of rectifier elements connected between the third input terminal and a first output terminal, a plurality of output capacitors connected in parallel to the rectifier elements, a second output terminal connected to a node between said output capacitors, a plurality of first capacitors connected between nodes between those of said rectifying elements located between the first output terminal and the second output terminal and a plurality of second capacitors connected between nodes between those of the rectifying elements which are between the second output terminal and the third input terminal, wherein the capacitance of the capacitors is defined such that the output voltages at individual output terminals can be made constant, regardless of whether other output terminals are loaded or unloaded.

摘要翻译： 升压整流电路包括用于施加相反极性的交流输出的第一和第二输入端，连接在第一和第二输入端之间的第三输入端，连接在第三输入端与第一输出端之间的多个整流元件， 与整流器元件并联连接的多个输出电容器，连接到所述输出电容器之间的节点的第二输出端子，连接在位于第一输出端子和第二输出端之间的所述整流元件的节点之间的节点之间的多个第一电容器 端子和连接在第二输出端子和第三输入端子之间的整流元件的节点之间的节点之间的多个第二电容器，其中限定电容器的电容，使得各个输出端子处的输出电压可以变为恒定 ，而不管其他输出端子是否被占用 d或卸载

公开(公告)号：US4561048A

公开(公告)日：1985-12-24

申请号：US543962

申请日：1983-10-20

申请人： Yoshio Takamura ,  Akira Nakajima

发明人： Yoshio Takamura ,  Akira Nakajima

IPC分类号： H02M7/06 ,  H02M7/10 ,  H02M7/19

CPC分类号： H02M7/10 ,  H02M7/06

摘要： A multiple step-up rectifier circuit has a transformer, diodes connected in series with each other, and first, second, third and fourth capacitors. An AC signal source is connected to a primary winding of the transformer. A neutral point of a secondary winding of the transformer is grounded. One terminal of a series circuit of the diodes is connected to the neutral point such that the diodes are biased in the same direction. The first capacitor is connected across the two terminals of a series circuit of the diodes. The second capacitor is connected to a first output terminal of the secondary winding of the transformer and the common connecting point of a first pair of diodes. The third capacitor is connected between a second output terminal of the second winding of the transformer and the common connecting point of a second pair of diodes. The fourth capacitor is connected between a third output terminal of the secondary winding of the transformer and the common connecting point of a third pair of diodes.

摘要翻译： 多重升压整流电路具有变压器，彼此串联的二极管，以及第一，第二，第三和第四电容器。 交流信号源连接到变压器的初级绕组。 变压器次级绕组的中性点接地。 二极管的串联电路的一个端子连接到中性点，使得二极管以相同的方向被偏置。 第一个电容器连接在二极管的串联电路的两个端子上。 第二电容器连接到变压器的次级绕组的第一输出端和第一对二极管的公共连接点。 第三电容器连接在变压器的第二绕组的第二输出端和第二对二极管的公共连接点之间。 第四电容器连接在变压器的次级绕组的第三输出端和第三对二极管的公共连接点之间。

公开(公告)号：US4401902A

公开(公告)日：1983-08-30

申请号：US349091

申请日：1982-02-16

申请人： Toshihiro Onodera ,  Youichi Masuda ,  Akira Nakajima ,  Yoshio Takamura ,  Seiji Kajiwara ,  Shoichi Higo

发明人： Toshihiro Onodera ,  Youichi Masuda ,  Akira Nakajima ,  Yoshio Takamura ,  Seiji Kajiwara ,  Shoichi Higo

IPC分类号： H03K17/64 ,  H02M3/28 ,  H02M3/335 ,  H03K17/16 ,  H03K3/49 ,  H03K17/60 ,  H03K19/16

CPC分类号： H02M3/33538

摘要： A switching element is connected between a power supply and the primary winding of a transformer, and it is on-off controlled with a predetermined cycle and with a predetermined conducting period. The secondary winding of the transformer is connected to a parallel circuit of a filtering capacitor and a load via a rectifier diode and a choke coil. A closed circuit, to which the reflux current of the choke coil flows through the parallel circuit of the filtering capacitor and load, is formed by a reflux diode.

摘要翻译： 开关元件连接在电源和变压器的初级绕组之间，并以预定的周期和预定的导通周期进行开关控制。 变压器的次级绕组通过整流二极管和扼流线圈连接到滤波电容器和负载的并联电路。 扼流线圈的回流通过滤波电容器的并联电路和负载的闭合电路由回流二极管形成。

公开(公告)号：US4283601A

公开(公告)日：1981-08-11

申请号：US37026

申请日：1979-05-08

申请人： Akira Nakajima ,  Akira Ichikawa ,  Kazuo Nakata

发明人： Akira Nakajima ,  Akira Ichikawa ,  Kazuo Nakata

IPC分类号： G10L15/20 ,  G10L15/00 ,  G10L15/02 ,  G10L21/02 ,  G10L1/00

CPC分类号： G10L15/00

摘要： Signal-to-noise is enhanced by including the upper sideband of a sampled-speech signal with the original baseband signal for further signal processing. The invention features shifting both bands to form a continuum from 0 Hz to the sampling frequency. Application in a speech recognition is shown.

摘要翻译： 通过将采样语音信号的上边带与原始基带信号相包以进一步进行信号处理来增强信噪比。 本发明的特征在于移动两个频带以形成从0Hz到采样频率的连续谱。 显示语音识别中的应用。