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1. 发明申请

US20110298439A1 DIGITALLY CONTROLLED INTEGRATED DC-DC CONVERTER WITH TRANSIENT SUPPRESSION 有权
标题翻译：数字控制集成DC-DC转换器与瞬态抑制
公开(公告)号：US20110298439A1
公开(公告)日：2011-12-08
申请号：US12794506
申请日：2010-06-04
申请人： Wai Tung NG , Jing WANG , Kendy NG , Haruhiko NISHIO , Masahiro SASAKI , Tetsuya KAWASHIMA
发明人： Wai Tung NG , Jing WANG , Kendy NG , Haruhiko NISHIO , Masahiro SASAKI , Tetsuya KAWASHIMA
IPC分类号： G05F1/10
CPC分类号： H02M3/1584 , H02M2001/009
摘要： A fully integrated DC-DC converter utilizes digitally controlled dual output stages to achieve fast load transient recovery is presented. The DC-DC converter includes a main converter output stage connected in parallel with an auxiliary output stage. The main output stage is responsible for steady-state operation and is designed to achieve high conversion efficiency using large inductor and power transistors with low on-resistance. The auxiliary stage is responsible for transient suppression and is only active when a load transient occurs. The auxiliary output stage performs well with inductor and power transistors much smaller than those of the main switching stage and thus achieves well balanced power conversion efficiency and dynamic performance with a much smaller area penalty than previously described dual-output-stage converters.
摘要翻译：一个完全集成的DC-DC转换器采用数字控制双输出级来实现快速负载瞬态恢复。 DC-DC转换器包括与辅助输出级并联连接的主转换器输出级。主输出级负责稳态运行，并设计为使用大电感和功率晶体管实现高转换效率，具有低导通电阻。辅助级负责瞬态抑制，仅在发生负载瞬变时有效。辅助输出级与主开关级的电感和功率晶体管相比表现良好，从而实现了良好平衡的功率转换效率和动态性能，具有比先前描述的双输出级转换器小得多的面积损失。

2. 发明申请

US20110215781A1 DIGITAL CONTROL SWITCHING REGULATOR HAVING AN INPUT VOLTAGE DETECTION CIRCUIT 有权
标题翻译：具有输入电压检测电路的数字控制开关稳压器
公开(公告)号：US20110215781A1
公开(公告)日：2011-09-08
申请号：US13039481
申请日：2011-03-03
申请人： Masahiro SASAKI , Tetsuya KAWASHIMA
发明人： Masahiro SASAKI , Tetsuya KAWASHIMA
IPC分类号： G05F1/10
CPC分类号： G05F1/10
摘要： A digital control switching regulator of the invention ON/OFF-controls switching elements by digital-controlled pulse width modulation signals and converts an input voltage to a desired output voltage. The switching regulator includes an input voltage detection circuit that includes: a voltage dividing circuit outputting a divided voltage of the input voltage; a comparator section comparing the divided voltage of the input voltage with a first reference voltage and a second reference voltage and outputting a first comparison signal and a second comparison signal indicating comparison results; and a control section controlling a dividing ratio of the voltage dividing circuit based on the first comparison signal and the second comparison signal to obtain the predetermined divided voltage, thereby outputting an input voltage digital signal corresponding to the input voltage. The input voltage digital signal controls controller coefficients for use in the digital control.
摘要翻译：本发明的数字控制开关调节器通过数字控制的脉冲宽度调制信号对开关元件进行ON / OFF控制，并将输入电压转换为期望的输出电压。开关调节器包括：输入电压检测电路，包括：分压电路，输出输入电压的分压; 比较部分，将输入电压的分压与第一参考电压和第二参考电压进行比较，并输出第一比较信号和指示比较结果的第二比较信号; 以及控制部，其基于第一比较信号和第二比较信号来控制分压电路的分压比，以获得预定的分压，从而输出与输入电压对应的输入电压数字信号。输入电压数字信号控制用于数字控制的控制器系数。

3. 发明申请

US20110279101A1 SWITCHING POWER SUPPLY SYSTEM PROVIDED WITH UNDER VOLTAGE LOCK OUT CIRCUIT 有权
标题翻译：在电压锁定电路下提供开关电源系统
公开(公告)号：US20110279101A1
公开(公告)日：2011-11-17
申请号：US13109331
申请日：2011-05-17
申请人： Masahiro SASAKI , Tetsuya KAWASHIMA
发明人： Masahiro SASAKI , Tetsuya KAWASHIMA
IPC分类号： G05F1/10
CPC分类号： H02M1/32 , H02M1/36 , H02M3/1588 , H02M2001/0012 , Y02B70/1466
摘要： A switching power supply system controlling switching operations of switching devices by a control circuit to convert an input voltage into a desired output voltage, the system being provided with a under voltage lock out circuit including: an input voltage detection unit detecting an input voltage and producing an input voltage digital signal corresponding to the input voltage Vin; and a voltage level comparison unit carrying out digital comparison of the input voltage digital signal with each of two voltage detection level data and outputting the results of the comparisons as an output signal, in which by changing voltage detection level data stored in two registers, desired voltage detection levels and hysteresis characteristic are easily actualized.
摘要翻译：一种开关电源系统，其通过控制电路来控制开关器件的开关动作，将输入电压转换成期望的输出电压，所述系统配备有欠压锁定电路，包括：输入电压检测单元，检测输入电压并产生对应于输入电压Vin的输入电压数字信号; 以及电压电平比较单元，对输入电压数字信号与两个电压检测电平数据中的每一个进行数字比较，并输出比较结果作为输出信号，其中通过改变存储在两个寄存器中的电压检测电平数据为期望的电压检测电平和滞后特性容易实现。

4. 发明申请

US20110133712A1 DIGITAL CONTROL SWITCHING POWER SUPPLY UNIT 有权
标题翻译：数字控制开关电源单元
公开(公告)号：US20110133712A1
公开(公告)日：2011-06-09
申请号：US12962391
申请日：2010-12-07
申请人： Masahiro SASAKI , Tetsuya KAWASHIMA
发明人： Masahiro SASAKI , Tetsuya KAWASHIMA
IPC分类号： G05F1/10
CPC分类号： H02M3/157
摘要： A digital control switching power supply unit includes an A/D converter circuit having a delay line circuit that has a delay element array whose delay time is controlled by a bias current, and that converts a current value into a digital signal using a signal transmission delay time, a phase difference detector circuit that detects a phase difference between a switching cycle and an A/D conversion cycle, a charge pump circuit that generates a control voltage in accordance with the phase difference, and a bias current indicator circuit that determines a bias current in accordance with an output voltage of the charge pump circuit and a result of a comparison of a detected value of the output voltage and a reference voltage, wherein the digital control switching power supply unit controls in such a way that the A/D conversion cycle is synchronized with the switching cycle.
摘要翻译：数字控制开关电源单元包括具有延迟线电路的A / D转换器电路，延迟线电路具有延迟元件阵列，其延迟时间由偏置电流控制，并且使用信号传输延迟将电流值转换为数字信号时间，检测开关周期和A / D转换周期之间的相位差的相位差检测器电路，产生根据相位差的控制电压的电荷泵电路和确定偏置的偏置电流指示器电路电流根据电荷泵电路的输出电压和输出电压的检测值与参考电压的比较的结果，其中数字控制开关电源单元以这样的方式进行控制，使得A / D转换周期与开关周期同步。

5. 发明申请

US20110181255A1 SEMICONDUCTOR DEVICE AND POWER SUPPLY UNIT USING THE SAME 审中-公开
标题翻译：半导体器件和使用该器件的电源单元
公开(公告)号：US20110181255A1
公开(公告)日：2011-07-28
申请号：US13005206
申请日：2011-01-12
申请人： Takayuki HASHIMOTO , Tetsuya KAWASHIMA
发明人： Takayuki HASHIMOTO , Tetsuya KAWASHIMA
IPC分类号： G05F1/00
CPC分类号： H02M3/1588 , H01L2224/05554 , H01L2224/0603 , H01L2224/48091 , H01L2224/48137 , H01L2224/4903 , H01L2224/49175 , H01L2924/12032 , H01L2924/13091 , H01L2924/30107 , Y02B70/1466 , H01L2924/00014 , H01L2924/00
摘要： In a power supply unit having high-side and low-side switching elements each including power MOSFETs connected in parallel, the power MOSFETs are controlled so that the number of the transistors in an off state is increased as an output current becomes lower, and particularly, the transistors turned off when the output current is low are disposed on an outer side of a loop formed from a positive terminal of an input capacitor of a printed board to a negative terminal of the input capacitor via the switching elements. Thus, by turning off packages of the power MOSFETs disposed on an outer side of the main circuit loop and turning on packages of the power MOSFETs disposed on an inner side of the loop, the parasitic inductance of a main circuit is reduced, so that the switching loss can be reduced and efficiency in a light load can be improved.
摘要翻译：在具有并联连接的功率MOSFET的高侧和低侧开关元件的电源单元中，控制功率MOSFET，使得随着输出电流变低，处于断开状态的晶体管的数量增加，特别是当输出电流较低时，晶体管截止，通过开关元件设置在由印刷电路板的输入电容器的正极端子到输入电容器的负极端子形成的环路的外侧。因此，通过关闭设置在主电路环的外侧的功率MOSFET的封装，并且设置在环的内侧的功率MOSFET的封装，主电路的寄生电感减小，可以降低开关损耗，提高轻负载的效率。

6. 发明申请

US20100270992A1 SEMICONDUCTOR DEVICE 审中-公开
标题翻译：半导体器件
公开(公告)号：US20100270992A1
公开(公告)日：2010-10-28
申请号：US12767156
申请日：2010-04-26
申请人： Tetsuya KAWASHIMA , Takayuki HASHIMOTO
发明人： Tetsuya KAWASHIMA , Takayuki HASHIMOTO
IPC分类号： G05F1/10 , H01L23/538 , H01L23/52
CPC分类号： H01L23/4952 , H01L23/49524 , H01L23/49541 , H01L23/49562 , H01L23/49575 , H01L24/40 , H01L24/45 , H01L24/48 , H01L24/49 , H01L2224/32245 , H01L2224/40245 , H01L2224/45014 , H01L2224/451 , H01L2224/48091 , H01L2224/48247 , H01L2224/48472 , H01L2224/49111 , H01L2224/73219 , H01L2224/73221 , H01L2224/73265 , H01L2224/83801 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01015 , H01L2924/01033 , H01L2924/01082 , H01L2924/014 , H01L2924/1306 , H01L2924/13091 , H01L2924/14 , H01L2924/181 , H01L2924/19041 , H01L2924/19043 , H02M7/003 , H01L2924/00 , H01L2924/00012 , H01L2224/05599 , H01L2224/37099 , H01L2924/206
摘要： A semiconductor device having two semiconductor chips sealed in a sealant (2-in-1 package) is provided. A power MOSFET chip for control is disposed on an input-side plate lead portion, wherein a source electrode and a gate electrode are formed on a main surface of the chip and the source electrode is connected to an output plate lead portion. A power MOSFET chip for synchronization is disposed on an output-side plate lead portion, wherein a source electrode and a gate electrode are formed on a main surface of the chip, and the second source electrode is connected to a ground-side plate lead portion. The ground-side plate lead portion and gate-side lead portions connected to the gate electrodes, respectively, are provided between the input-side plate lead portion and the output-side plate lead portion. In this manner, heat-dissipation paths via wirings when the 2-in-1 package is mounted on a board can be wide.
摘要翻译：提供了具有密封在密封剂（2合1封装）中的两个半导体芯片的半导体器件。用于控制的功率MOSFET芯片设置在输入侧板引线部分上，其中源电极和栅电极形成在芯片的主表面上，源电极连接到输出板引线部分。用于同步的功率MOSFET芯片设置在输出侧板引线部分上，其中源电极和栅电极形成在芯片的主表面上，第二源电极连接到接地侧引线部分。分别连接到栅电极的接地侧引线部分和栅极侧引线部分设置在输入侧板引线部分和输出侧板引线部分之间。以这种方式，当将2合1封装安装在电路板上时通过布线的散热路径可以是宽的。

7. 发明申请

US20120273892A1 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF THE SAME 有权
标题翻译：半导体器件及其制造方法
公开(公告)号：US20120273892A1
公开(公告)日：2012-11-01
申请号：US13546524
申请日：2012-07-11
申请人： Tomoaki UNO , Nobuyoshi MATSUURA , Yukihiro SATO , Keiichi OKAWA , Tetsuya KAWASHIMA , Kisho ASHIDA
发明人： Tomoaki UNO , Nobuyoshi MATSUURA , Yukihiro SATO , Keiichi OKAWA , Tetsuya KAWASHIMA , Kisho ASHIDA
IPC分类号： H01L27/088
CPC分类号： H01L23/50 , H01L23/3107 , H01L23/49524 , H01L23/49562 , H01L23/49575 , H01L24/03 , H01L24/05 , H01L24/06 , H01L24/37 , H01L24/40 , H01L24/41 , H01L24/45 , H01L24/48 , H01L24/49 , H01L24/73 , H01L24/91 , H01L2224/02166 , H01L2224/04042 , H01L2224/05553 , H01L2224/05554 , H01L2224/05556 , H01L2224/05599 , H01L2224/05624 , H01L2224/05647 , H01L2224/32245 , H01L2224/37011 , H01L2224/371 , H01L2224/37124 , H01L2224/37147 , H01L2224/4007 , H01L2224/40095 , H01L2224/40245 , H01L2224/45015 , H01L2224/45144 , H01L2224/48091 , H01L2224/48095 , H01L2224/48137 , H01L2224/48247 , H01L2224/4847 , H01L2224/48624 , H01L2224/48647 , H01L2224/49111 , H01L2224/49171 , H01L2224/49175 , H01L2224/73221 , H01L2224/73265 , H01L2224/83801 , H01L2224/8385 , H01L2224/84801 , H01L2224/8485 , H01L2224/85444 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01013 , H01L2924/01014 , H01L2924/01015 , H01L2924/01019 , H01L2924/0102 , H01L2924/01022 , H01L2924/01023 , H01L2924/01028 , H01L2924/01029 , H01L2924/01033 , H01L2924/01041 , H01L2924/01046 , H01L2924/01047 , H01L2924/0105 , H01L2924/01074 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/01083 , H01L2924/014 , H01L2924/05042 , H01L2924/12032 , H01L2924/12042 , H01L2924/1305 , H01L2924/1306 , H01L2924/13091 , H01L2924/14 , H01L2924/1433 , H01L2924/181 , H01L2924/19041 , H01L2924/19043 , H01L2924/30107 , H01L2924/351 , H01L2924/01039 , H01L2924/00 , H01L2924/00012 , H01L2924/207
摘要： The electrical characteristics of a semiconductor device are enhanced. In the package of the semiconductor device, there are encapsulated first and second semiconductor chips with a power MOS-FET formed therein and a third semiconductor chip with a control circuit for controlling their operation formed therein. The bonding pads for source electrode of the first semiconductor chip on the high side are electrically connected to a die pad through a metal plate. The bonding pad for source electrode of the second semiconductor chip on the low side is electrically connected to lead wiring through a metal plate. The metal plate includes a first portion in contact with the bonding pad of the second semiconductor chip, a second portion extended from a short side of the first portion to the lead wiring, and a third portion extended from a long side of the first portion to the lead wiring.
摘要翻译：提高了半导体器件的电气特性。在半导体器件的封装中，存在其中形成有功率MOS-FET的封装的第一和第二半导体芯片，以及具有用于控制其中形成的工作的控制电路的第三半导体芯片。高侧的第一半导体芯片的源极的接合焊盘通过金属板电连接到管芯焊盘。低侧的第二半导体芯片的源电极接合焊盘通过金属板电连接到引线。金属板包括与第二半导体芯片的焊盘接触的第一部分，从第一部分的短边延伸到引线布线的第二部分，以及从第一部分的长边延伸到第三部分的第三部分引线。

8. 发明申请

US20110220979A1 SEMICONDUCTOR DEVICE AND MULTI-LAYERED WIRING SUBSTRATE 有权
标题翻译：半导体器件和多层布线基片
公开(公告)号：US20110220979A1
公开(公告)日：2011-09-15
申请号：US13041778
申请日：2011-03-07
申请人： Tetsuya KAWASHIMA , Takayuki HASHIMOTO
发明人： Tetsuya KAWASHIMA , Takayuki HASHIMOTO
IPC分类号： H01L27/06
CPC分类号： H01L27/0694 , H01L23/50 , H01L23/5383 , H01L23/5384 , H01L23/642 , H01L25/16 , H01L2224/48137 , H01L2224/48247 , H01L2924/13091 , H01L2924/181 , H01L2924/30107 , H05K1/0213 , H05K1/113 , H05K2201/10015 , H05K2201/10166 , H05K2201/10545 , H01L2924/00 , H01L2924/00012
摘要： There is provided a semiconductor device in which a wiring inductance of a DC/DC converter formed on a multi-layered wiring substrate can be reduced and the characteristics can be improved. In the semiconductor device, in an input-side capacitor, one capacitor electrode is electrically connected to a power-supply pattern between a control power MOSFET and a synchronous power MOSFET, and the other capacitor electrode is electrically connected to a ground pattern therebetween. The multi-layered wiring substrate includes: a via conductor arranged at a position of the one capacitor electrode for electrically connecting among a plurality of power-supply patterns in a thickness direction; and a via conductor arranged at a position of the other capacitor electrode for electrically connecting among a plurality of ground patterns in a thickness direction.
摘要翻译：提供一种半导体器件，其中可以减少形成在多层布线基板上的DC / DC转换器的布线电感并且可以提高特性。在半导体装置中，在输入侧电容器中，一个电容电极电连接到控制功率MOSFET与同步功率MOSFET之间的电源图案，另一个电容电极与它们之间的接地图电连接。所述多层布线基板包括：通孔导体，布置在所述一个电容器电极的位置，用于在多个电源图案之间沿厚度方向电连接; 以及布置在另一电容电极的位置处的通孔导体，用于在多个接地图案之间沿厚度方向电连接。

9. 发明申请

US20120194157A1 SWITCHING REGULATOR PERFORMING OUTPUT VOLTAGE CHANGING FUNCTION 有权
标题翻译：切换稳压器执行输出电压变化功能
公开(公告)号：US20120194157A1
公开(公告)日：2012-08-02
申请号：US13360987
申请日：2012-01-30
申请人： Tetsuya KAWASHIMA
发明人： Tetsuya KAWASHIMA
IPC分类号： G05F1/46
CPC分类号： H02M3/157 , H02M2001/0025
摘要： A switching regulator can convert an input voltage to a desired output voltage by ON-OFF controlling switching elements with PWM signals. The switching regulator can include a communication interface circuit that receives external operation instructions, an output voltage setting section that changes an output voltage to an output voltage setting value upon receiving an output voltage changing instruction from the outside, a voltage divider and an ADC that converts an error voltage into a digital error signal e[n], the error voltage being a difference between a reference voltage Vref and a detected output voltage value Vfb. The switching regulator can also include a controller that includes an operation control section for calculating a duty factor signal d[n] to determine an ON time proportion of the switching elements and an output voltage changing control section for controlling operation to change the output voltage.
摘要翻译：开关调节器可以通过ON-OFF将输入电压转换为期望的输出电压，从而控制具有PWM信号的开关元件。开关调节器可以包括接收外部操作指令的通信接口电路，输出电压设定部，其在从外部接收到输出电压变化指令时，将输出电压变更为输出电压设定值，分压器和ADC 将误差电压转换为数字误差信号e [n]，误差电压是参考电压Vref与检测的输出电压值Vfb之差。开关调节器还可以包括控制器，其包括用于计算占空因数信号d [n]以确定开关元件的接通时间比例的操作控制部分和用于控制改变输出电压的操作的输出电压变化控制部分。

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