专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2011145706A1 SEMICONDUCTOR DEVICE AND DISPLAY DEVICE 审中-公开
标题翻译：半导体器件和显示器件
公开(公告)号：WO2011145706A1
公开(公告)日：2011-11-24
申请号：PCT/JP2011/061593
申请日：2011-05-13
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD. , TAKAHASHI, Kei , ITO, Yoshiaki
发明人： TAKAHASHI, Kei , ITO, Yoshiaki
IPC分类号： H02M3/155
CPC分类号： H02M3/156 , H02M2001/0003
摘要： An object is to reduce power consumption of a semiconductor device including a DC-DC converter circuit. The semiconductor device includes a DC-DC converter circuit and a microprocessor. The DC-DC converter circuit includes a conversion circuit including an inductor and a transistor, and a control circuit including a comparison circuit and a logic circuit. A hysteresis comparator is used as the comparison circuit. In the control circuit, the comparison circuit compares an output signal of the conversion circuit with a first reference potential or a second reference potential, and the logic circuit performs arithmetic operation between an output signal of the comparison circuit and a clock signal of the microprocessor. In the conversion circuit, the transistor controls current flowing through the inductor in accordance with an output signal of the logic circuit, and the output signal of the conversion circuit is generated in accordance with the current flowing through the inductor.
摘要翻译：目的是降低包括DC-DC转换器电路的半导体器件的功耗。半导体器件包括DC-DC转换器电路和微处理器。 DC-DC转换器电路包括具有电感和晶体管的转换电路，以及包括比较电路和逻辑电路的控制电路。使用滞后比较器作为比较电路。在控制电路中，比较电路将转换电路的输出信号与第一参考电位或第二参考电位进行比较，逻辑电路在比较电路的输出信号和微处理器的时钟信号之间进行运算。在转换电路中，晶体管根据逻辑电路的输出信号控制流过电感器的电流，并且根据流过电感器的电流产生转换电路的输出信号。

2. 发明申请

WO2011145707A1 SEMICONDUCTOR DEVICE AND DISPLAY DEVICE 审中-公开
标题翻译：半导体器件和显示器件
公开(公告)号：WO2011145707A1
公开(公告)日：2011-11-24
申请号：PCT/JP2011/061594
申请日：2011-05-13
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD. , TAKAHASHI, Kei , ITO, Yoshiaki
发明人： TAKAHASHI, Kei , ITO, Yoshiaki
IPC分类号： H02M3/155
CPC分类号： H02M3/158 , H02M3/157 , H02M2001/0048 , Y02B70/1491
摘要： An object is to reduce power consumption of a semiconductor device including a DC-DC converter circuit. The semiconductor device includes a DC-DC converter circuit and a microprocessor. The DC-DC converter circuit includes a conversion circuit including an inductor and a transistor, and a control circuit including a comparison circuit and a logic circuit. In the control circuit, the comparison circuit compares an output of the conversion circuit and a reference value, and the logic circuit performs an arithmetic operation between an output of the comparison circuit and a clock signal of the microprocessor. In the conversion circuit, the transistor controls a current flowing through the inductor in accordance with an output of the logic circuit, and the output of the conversion circuit is generated in accordance with the current flowing through the inductor.
摘要翻译：目的是降低包括DC-DC转换器电路的半导体器件的功耗。半导体器件包括DC-DC转换器电路和微处理器。 DC-DC转换器电路包括具有电感和晶体管的转换电路，以及包括比较电路和逻辑电路的控制电路。在控制电路中，比较电路将转换电路的输出与参考值进行比较，逻辑电路在比较电路的输出与微处理器的时钟信号之间进行运算。在转换电路中，晶体管根据逻辑电路的输出控制流过电感器的电流，并且根据流过电感器的电流产生转换电路的输出。

3. 发明申请

WO2011068025A1 DC CONVERTER CIRCUIT AND POWER SUPPLY CIRCUIT 审中-公开
标题翻译：直流转换电路和电源电路
公开(公告)号：WO2011068025A1
公开(公告)日：2011-06-09
申请号：PCT/JP2010/070248
申请日：2010-11-08
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD. , TAKAHASHI, Kei , ITO, Yoshiaki , INOUE, Hiroki , NISHIJIMA, Tatsuji
发明人： TAKAHASHI, Kei , ITO, Yoshiaki , INOUE, Hiroki , NISHIJIMA, Tatsuji
IPC分类号： H02M3/155 , H01L29/786
CPC分类号： H02M3/156 , H01L27/12 , H01L27/1225 , H01L29/7869 , H02M3/155
摘要： A DC converter circuit having high reliability is provided. The DC converter circuit includes: an inductor configured to generate electromotive force in accordance with a change in flowing current; a transistor including a gate, a source, and a drain, which is configured to control generation of the electromotive force in the inductor by being on or off; a rectifier in a conducting state when the transistor is off; and a control circuit configured to control on and off of the transistor. The transistor includes an oxide semiconductor layer whose hydrogen concentration is less than or equal to 5 x 10 19 atoms/cm 3 as a channel formation layer.
摘要翻译：提供了具有高可靠性的DC转换器电路。 DC转换器电路包括：电感器，被配置为根据流动电流的变化产生电动势; 包括栅极，源极和漏极的晶体管，其被配置为通过导通或关断来控制电感器中的电动势的产生; 当晶体管截止时处于导通状态的整流器; 以及被配置为控制晶体管的导通和截止的控制电路。晶体管包括作为沟道形成层的氢浓度小于或等于5×1019原子/ cm3的氧化物半导体层。

4. 发明申请

WO2011125566A1 DIVIDER CIRCUIT 审中-公开
标题翻译：分流电路
公开(公告)号：WO2011125566A1
公开(公告)日：2011-10-13
申请号：PCT/JP2011/057496
申请日：2011-03-18
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD. , TAKAHASHI, Kei , ITO, Yoshiaki
发明人： TAKAHASHI, Kei , ITO, Yoshiaki
IPC分类号： H03K3/356 , H03K19/0175 , H03K23/00 , H03K23/54
CPC分类号： H03K23/54 , G06F1/06 , H03K21/12 , H03K21/406
摘要： A divider circuit includes a shift register which generates 2 X ( X is a natural number greater than or equal to 2) pulse signals in accordance with a first clock signal or a second clock signal and outputs them, and a divided signal output circuit which generates a signal to be a third clock signal with a cycle X times longer than a cycle of the first clock signal in accordance with the 2 X pulse signals and outputs it. The divided signal output circuit includes X first transistors which control whether voltage of the signal to be the third clock signal is set to first voltage; and X second transistors which control whether voltage of the signal to be the third clock signal is set to second voltage.
摘要翻译：分频电路包括根据第一时钟信号或第二时钟信号产生2X（X为大于或等于2的自然数）脉冲信号的移位寄存器，并输出它们;以及分频信号输出电路，根据2X脉冲信号，信号成为第三时钟信号，其周期比第一时钟信号的周期长十倍，并将其输出。分频信号输出电路包括：X个第一晶体管，其控制作为第三时钟信号的信号的电压是否被设置为第一电压; 以及X第二晶体管，其控制作为第三时钟信号的信号的电压是否被设定为第二电压。

5. 发明申请

WO2011043170A1 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF 审中-公开
标题翻译：半导体器件及其制造方法
公开(公告)号：WO2011043170A1
公开(公告)日：2011-04-14
申请号：PCT/JP2010/065990
申请日：2010-09-09
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD. , YAMAZAKI, Shunpei , TAKAHASHI, Kei , ITO, Yoshiaki
发明人： YAMAZAKI, Shunpei , TAKAHASHI, Kei , ITO, Yoshiaki
IPC分类号： H01L29/786 , H01L21/20 , H01L21/336
CPC分类号： H01L29/7869 , H01L27/1251 , H01L29/045 , H01L29/0611 , H01L29/24 , H01L29/41733 , H01L29/42384 , H01L29/66477 , H01L29/66969 , H01L29/78618 , H01L29/78642 , H01L29/78648 , H01L29/78693 , H01L29/78696
摘要： It is an object to provide a semiconductor device having a new productive semiconductor material and a new structure. The semiconductor device includes a first conductive layer over a substrate, a first insulating layer which covers the first conductive layer, an oxide semiconductor layer over the first insulating layer that overlaps with part of the first conductive layer and has a crystal region in a surface part, second and third conductive layers formed in contact with the oxide semiconductor layer, an insulating layer which covers the oxide semiconductor layer and the second and third conductive layers, and a fourth conductive layer over the insulating layer that overlaps with part of the oxide semiconductor layer.
摘要翻译：本发明的目的是提供一种具有新的生产半导体材料和新结构的半导体器件。半导体器件包括：衬底上的第一导电层，覆盖第一导电层的第一绝缘层，与第一导电层的一部分重叠的第一绝缘层上的氧化物半导体层，并且在表面部分中具有晶体区域形成为与氧化物半导体层接触的第二和第三导电层，覆盖氧化物半导体层和第二和第三导电层的绝缘层，以及绝缘层上的与氧化物半导体层的一部分重叠的第四导电层。

6. 发明申请

WO2012029595A1 OSCILLATOR CIRCUIT AND SEMICONDUCTOR DEVICE USING THE OSCILLATOR CIRCUIT 审中-公开
标题翻译：使用振荡器电路的振荡器电路和半导体器件
公开(公告)号：WO2012029595A1
公开(公告)日：2012-03-08
申请号：PCT/JP2011/068993
申请日：2011-08-17
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD. , WATANABE, Kazunori , ITO, Yoshiaki
发明人： WATANABE, Kazunori , ITO, Yoshiaki
IPC分类号： H03K4/501
CPC分类号： H03K3/0231 , G09G3/20 , G09G2330/028
摘要： The oscillator circuit includes a comparator circuit which compares a potential supplied to one of input terminals with a potential supplied to the other of the input terminals and outputs a high power supply potential or a low power supply potential, a capacitor which is electrically connected to the one of the input terminals of the comparator circuit, and a charge and discharge circuit which charges and discharges the capacitor. The charge and discharge circuit includes a first current supply circuit and a second current supply circuit. Each of a current value of the first current supply circuit and a current value of the second current supply circuit can be controlled with the use of a digital control signal.
摘要翻译：振荡器电路包括比较器电路，其将提供给一个输入端的电位与提供给另一个输入端的电位进行比较，并输出高电源电位或低电源电位;电容器，其电连接到比较器电路的输入端之一，以及对电容器进行充放电的充放电电路。充放电电路包括第一电流供给电路和第二电流供给电路。可以使用数字控制信号来控制第一电流供应电路的电流值和第二电流供应电路的电流值中的每一个。

7. 发明申请

WO2011129209A1 POWER SOURCE CIRCUIT 审中-公开
标题翻译：电源电路
公开(公告)号：WO2011129209A1
公开(公告)日：2011-10-20
申请号：PCT/JP2011/058487
申请日：2011-03-29
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD. , ITO, Yoshiaki , OHMARU, Takuro
发明人： ITO, Yoshiaki , OHMARU, Takuro
IPC分类号： H02M3/155 , H03K7/08
CPC分类号： H02M3/157 , G05F1/00 , G09G3/10
摘要： An object is to reduce degradation of circuit operation and to reduce the area of the entire circuit. A power source circuit is provided with a first terminal to which first voltage is input; a second terminal to which second voltage is input; a comparator being connected to the first terminal and the second terminal and comparing the first voltage and the second voltage; a digital circuit averaging, integrating, and digital pulse width modulating a first digital signal output from the comparator; a PWM output driver amplifying a second digital signal output from the digital circuit; and a smoothing circuit smoothing the amplified second digital signal.
摘要翻译：目的是减少电路运行的恶化并减少整个电路的面积。电源电路设置有输入第一电压的第一端子; 输入第二电压的第二端子; 比较器连接到第一端子和第二端子，并且比较第一电压和第二电压; 数字电路对从比较器输出的第一数字信号进行平均，积分和数字脉宽调制; PWM输出驱动器，放大从数字电路输出的第二数字信号; 以及使放大的第二数字信号平滑的平滑电路。

8. 发明申请

WO2011052357A1 PWM LIMITER CIRCUIT 审中-公开
标题翻译： PWM限幅电路
公开(公告)号：WO2011052357A1
公开(公告)日：2011-05-05
申请号：PCT/JP2010/067606
申请日：2010-09-30
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD. , OHMARU, Takuro , ITO, Yoshiaki
发明人： OHMARU, Takuro , ITO, Yoshiaki
IPC分类号： H02M3/00 , H02M1/08
CPC分类号： H03K7/08
摘要： The duty ratio of a PWM signal is prevented from being zero immediately after the start of PWM control, for example. A PWM limiter circuit has a structure with which a signal output from the PWM limiter circuit can be prevented from being higher than a certain value or lower than a certain value. The PWM limiter circuit includes a comparator circuit, a controller circuit, and a switch circuit. The highest duty ratio reference voltage V refH is input to a first input terminal. The lowest duty ratio reference voltage V refL is input to a second input terminal. Voltage V err output from an error amplifier is input to a third input terminal.
摘要翻译：例如，在PWM控制开始之后PWM信号的占空比被防止为零。 PWM限幅电路具有可以防止从PWM限幅电路输出的信号高于某一值或低于某一值的结构。 PWM限幅器电路包括比较器电路，控制器电路和开关电路。最高占空比参考电压V refH被输入到第一输入端。最低占空比参考电压V refL被输入到第二输入端。从误差放大器输出的电压V err被输入到第三输入端。

9. 发明申请

WO2012026343A1 SEMICONDUCTOR DEVICE 审中-公开
标题翻译：半导体器件
公开(公告)号：WO2012026343A1
公开(公告)日：2012-03-01
申请号：PCT/JP2011/068406
申请日：2011-08-05
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD. , ITO, Yoshiaki
发明人： ITO, Yoshiaki
IPC分类号： H03M1/60
CPC分类号： H03M1/60
摘要： An AD converter includes a first oscillator (OSC1) outputting a first frequency (Fref) in accordance with a reference voltage (Aref); a second oscillator (OSC2) outputting a second frequency (Fin) in accordance with an input voltage (Ain); a first counter (CNT1) measuring the first frequency (Fref); a second counter (CNT2) measuring the second frequency (Fin); and a comparator (CMP) comparing a measurement result (Cref) of the first frequency (Fref) and a measurement result (Cin) of the second frequency (Fin) and outputting a digital value (Dout) in accordance with the input voltage (Ain).
摘要翻译： AD转换器包括根据参考电压（Aref）输出第一频率（Fref）的第一振荡器（OSC1）; 根据输入电压（Ain）输出第二频率（Fin）的第二振荡器（OSC2）; 测量第一频率（Fref）的第一计数器（CNT1）; 测量第二频率（Fin）的第二计数器（CNT2）; 和比较器（CMP），比较第一频率（Fref）的测量结果（Cref）和第二频率（Fin）的测量结果（Cin），并根据输入电压（Ain）输出数字值（Dout））。

10. 发明申请

WO2011052458A1 ERROR AMPLIFIER 审中-公开
标题翻译：错误放大器
公开(公告)号：WO2011052458A1
公开(公告)日：2011-05-05
申请号：PCT/JP2010/068529
申请日：2010-10-14
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD. , ITO, Yoshiaki
发明人： ITO, Yoshiaki
IPC分类号： H03G3/10 , H03F3/45 , H02M3/155
CPC分类号： H03F3/45475 , H03F2203/45526
摘要： One of the objects of the present invention is to suppress variations in the frequency response of a feedback circuit due to variations in the value of a passive element in an error amplifier. One of the embodiments of the present invention provides a configuration allowing the frequency response of a feedback circuit in an error amplifier to be determined by not only the value of a passive element but the gain of an active element. This error amplifier includes a voltage-to-current converter which is an active element. In addition, a first terminal, a second terminal, an operational amplifier, a first resistor, a second resistor, first to fifth transistors, a first current source, and a second current source can be built into an integrated circuit, and a capacitor can be externally provided.
摘要翻译：本发明的目的之一是抑制由误差放大器中的无源元件的值的变化引起的反馈电路的频率响应的变化。本发明的一个实施例提供一种允许误差放大器中的反馈电路的频率响应不仅通过无源元件的值而是通过有源元件的增益来确定的配置。该误差放大器包括作为有源元件的电压 - 电流转换器。此外，集成电路可以内置第一端子，第二端子，运算放大器，第一电阻器，第二电阻器，第一至第五晶体管，第一电流源和第二电流源，并且电容器外部提供。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式