公开(公告)号：US07961446B2

公开(公告)日：2011-06-14

申请号：US12066855

申请日：2006-09-15

申请人： Yazu Ide ,  Yuichi Aoki ,  Masaaki Fuji ,  Hirokazu Oki

发明人： Yazu Ide ,  Yuichi Aoki ,  Masaaki Fuji ,  Hirokazu Oki

IPC分类号： H02H5/04

CPC分类号： H01L23/34 ,  H01L2924/0002 ,  H02M1/32 ,  H01L2924/00

摘要： A temperature protection circuit comprises means adapted to compare the temperature being monitored with each of threshold temperatures and judging that the temperature being monitored reaches a threshold temperature when the temperature being monitored is maintained at the threshold temperature or more for a predetermined confirmation period, means adapted to set a longer confirmation period as the threshold temperature compared with the temperature being monitored is lower, means adapted to generate one of corresponding temperature protection signals (Sarm, Slmt, Stsd1, Stsd2) according to the judgment of which threshold temperature the temperature being monitored reaches. With this constitution, temperature protection operation can be preformed with high accuracy and high safety without unnecessarily narrowing the range of the operating temperature of an IC to be protected.

摘要翻译： 温度保护电路包括适于将待监测的温度与每个阈值温度进行比较的装置，并且当所监视的温度在预定的确认期限内保持在阈值温度或更高时，判断被监视的温度达到阈值温度， 为了设定与所监视的温度相比的阈值温度较低的较长的确认期间，根据阈值温度被监视的温度的判断，适于产生相应的温度保护信号（Sarm，Slmt，Stsd1，Stsd2）中的一个的装置 到达 利用这种结构，可以以高精度和高安全性实现温度保护操作，而不会使要保护的IC的工作温度的范围变得不必要。

公开(公告)号：US20090262468A1

公开(公告)日：2009-10-22

申请号：US12066855

申请日：2006-09-15

申请人： Yuzo Ide ,  Yuichi Aoki ,  Masaaki Fujii ,  Hirokazu Oki

发明人： Yuzo Ide ,  Yuichi Aoki ,  Masaaki Fujii ,  Hirokazu Oki

IPC分类号： H02H5/04 ,  H02H7/00

CPC分类号： H01L23/34 ,  H01L2924/0002 ,  H02M1/32 ,  H01L2924/00

摘要： A temperature protection circuit comprises means adapted to compare the temperature being monitored with each of threshold temperatures and judging that the temperature being monitored reaches a threshold temperature when the temperature being monitored is maintained at the threshold temperature or more for a predetermined confirmation period, means adapted to set a longer confirmation period as the threshold temperature compared with the temperature being monitored is lower, means adapted to generate one of corresponding temperature protection signals (Sarm, Slmt, Stsd1, Stsd2) according to the judgment of which threshold temperature the temperature being monitored reaches. With this constitution, temperature protection operation can be preformed with high accuracy and high safety without unnecessarily narrowing the range of the operating temperature of an IC to be protected.

摘要翻译： 温度保护电路包括适于将待监测的温度与每个阈值温度进行比较的装置，并且当所监视的温度在预定的确认期限内保持在阈值温度或更高时，判断被监视的温度达到阈值温度， 为了设定与所监视的温度相比的阈值温度较低的较长的确认期间，根据阈值温度被监视的温度的判断，适于产生相应的温度保护信号（Sarm，Slmt，Stsd1，Stsd2）中的一个的装置 到达 利用这种结构，可以以高精度和高安全性实现温度保护操作，而不会使要保护的IC的工作温度的范围变得不必要。

公开(公告)号：US20070229041A1

公开(公告)日：2007-10-04

申请号：US11597012

申请日：2005-05-17

申请人： Hirokazu Oki ,  Yuzo Ide

发明人： Hirokazu Oki ,  Yuzo Ide

IPC分类号： G05F1/00

CPC分类号： H03K17/0822 ,  H02H3/087 ,  H03K17/18

摘要： An excess current detecting circuit detects an excess current status of a power MOS transistor, which outputs a current to a load from a drain electrode, and outputs the excess current detection signal. The excess current detecting circuit is provided with: a detection MOS transistor wherein a source electrode and a gate electrode are connected to a source electrode and a gate electrode of the power MOS transistor, respectively, a constant current circuit connected with a drain electrode of the detection MOS transistor for flowing a prescribed constant current to the detection MOS transistor, and a comparator for outputting the excess current detection signal based on the results of the comparison between a potential of the drain electrode of the power MOS transistor and a potential of the drain electrode of the detection MOS transistor.

摘要翻译： 过电流检测电路检测从漏电极向负载输出电流的功率MOS晶体管的过电流状态，并输出过电流检测信号。 过电流检测电路设有：检测MOS晶体管，其中源电极和栅电极分别连接到功率MOS晶体管的源电极和栅电极，恒流电路与漏极电极连接 检测MOS晶体管，用于使规定的恒定电流流向检测MOS晶体管;以及比较器，用于根据功率MOS晶体管的漏电极的电位与漏极的电位之间的比较结果输出过电流检测信号 检测MOS晶体管的电极。

公开(公告)号：US20070223164A1

公开(公告)日：2007-09-27

申请号：US11568493

申请日：2005-04-28

申请人： Hirokazu Oki ,  Yuzo Ide

发明人： Hirokazu Oki ,  Yuzo Ide

IPC分类号： H02H3/00

CPC分类号： H02H9/001 ,  G05F1/573 ,  H02H1/043 ,  H02H3/087 ,  H03K17/0822 ,  H03K17/687

摘要： An overcurrent detection circuit (35) that detects an overcurrent state of a transistor (2) that outputs a current to a load (25) is provided with a start-up monitoring portion (31) that distinguishes between a start-up state and a steady state, an overcurrent monitoring portion (33) that monitors an overcurrent state of the transistor (2), and an output voltage monitoring portion (34) that detects whether the output voltage to the load (25) is normal or abnormal. The overcurrent monitoring portion (31) changes an overcurrent detection level while referring to information from the start-up monitoring portion (31) and the overcurrent monitoring portion (33).

摘要翻译： 检测向负载（25）输出电流的晶体管（2）的过电流状态的过电流检测电路（35）具有启动监视部（31），其将启动状态和 稳定状态，监视晶体管（2）的过电流状态的过电流监视部（33），以及检测负载（25）的输出电压是正常还是异常的输出电压监视部（34）。 过电流监视部（31）参照来自起动监视部（31）和过电流监视部（33）的信息来改变过电流检测电平。

公开(公告)号：US07468877B2

公开(公告)日：2008-12-23

申请号：US11568493

申请日：2005-04-28

申请人： Hirokazu Oki ,  Yuzo Ide

发明人： Hirokazu Oki ,  Yuzo Ide

IPC分类号： H02H3/08 ,  H02H3/00 ,  H02H3/27

CPC分类号： H02H9/001 ,  G05F1/573 ,  H02H1/043 ,  H02H3/087 ,  H03K17/0822 ,  H03K17/687

摘要： An overcurrent detection circuit that detects an overcurrent state of a transistor that outputs a current to a load is provided with a start-up monitoring portion that distinguishes between a start-up state and a steady state, an overcurrent monitoring portion that monitors an overcurrent state of the transistor, and an output voltage monitoring portion that detects whether the output voltage to the load is normal or abnormal. The overcurrent monitoring portion changes an overcurrent detection level while referring to information from the start-up monitoring portion and the overcurrent monitoring portion.

摘要翻译： 检测向负载输出电流的晶体管的过电流状态的过电流检测电路具备区分启动状态和稳定状态的启动监视部，监视过电流状态的过电流监视部 以及检测负载的输出电压是正常还是异常的输出电压监视部。 过电流监视部分参考来自启动监视部分和过电流监视部分的信息来改变过电流检测电平。

公开(公告)号：US06483727B2

公开(公告)日：2002-11-19

申请号：US09987115

申请日：2001-11-13

申请人： Hirokazu Oki ,  Koichi Inoue

发明人： Hirokazu Oki ,  Koichi Inoue

IPC分类号： H02J102

CPC分类号： G05F3/227 ,  H02J1/02

摘要： A stabilized DC power supply device that maintains an output voltage thereof at a constant level despite a fluctuation arising in a power supply voltage fed thereto comprises a control circuit that compares the output voltage with a reference voltage so as to output a control signal by which the output voltage is maintained at a predetermined level, and a ripple cancellation circuit that amplifies an undulating component included in the power supply voltage at a predetermined gain and that feeds out a resulting signal as an undulation compensation signal for correcting the output voltage, wherein the undulation compensation signal for correcting the output voltage is superimposed on the reference voltage so as to prevent an undulation arising in the power supply voltage from appearing in the output voltage.

摘要翻译： 一种稳定的直流电源装置，其将输出电压维持在恒定电平，尽管馈送到其中的电源电压发生波动，其包括控制电路，其将输出电压与参考电压进行比较，以输出控制信号， 输出电压保持在预定电平，以及纹波消除电路，其以预定增益放大包括在电源电压中的起伏分量，并将所得信号作为用于校正输出电压的波动补偿信号，其中波动 用于校正输出电压的补偿信号叠加在参考电压上，以便防止在电源电压中出现的起伏在输出电压中出现。

公开(公告)号：US08295020B2

公开(公告)日：2012-10-23

申请号：US12441164

申请日：2007-11-21

申请人： Hirokazu Oki

发明人： Hirokazu Oki

IPC分类号： H02H9/02 ,  H02H7/122

CPC分类号： H02M1/08 ,  H02M1/38 ,  H03K5/1515 ,  H03K17/162 ,  H03K19/00361

摘要： Provided is an electronic circuit including an upper control unit and a lower control unit. The upper control unit performs a logic transition of a gate signal so as to off-latch an upper switch by using the fall edge of a drive signal as a trigger and release the off-latch of the upper switch by using the rise edge of a monitor signal as a trigger. The lower control unit performs a logic transition of the gate signal so as to off-latch a lower switch by using the rise edge of the drive signal as a trigger and release the off-latch of the lower switch by using the rise edge of a monitor signal as a trigger.

摘要翻译： 提供了一种包括上控制单元和下控制单元的电子电路。 上控制单元执行门信号的逻辑转换，以便通过使用驱动信号的下降沿作为触发来解锁锁定上开关，并通过使用上位开关的上升沿来释放上开关的断开 监控信号作为触发。 下控制单元执行门信号的逻辑转换，以便通过使用驱动信号的上升沿作为触发来使下开关断开闩锁，并且通过使用下行开关的上升沿来释放下开关的断开 监控信号作为触发。

公开(公告)号：US20100085675A1

公开(公告)日：2010-04-08

申请号：US12441164

申请日：2007-11-21

申请人： Hirokazu Oki

发明人： Hirokazu Oki

IPC分类号： H02H9/02

CPC分类号： H02M1/08 ,  H02M1/38 ,  H03K5/1515 ,  H03K17/162 ,  H03K19/00361

摘要： Provided is an electronic circuit including an upper control unit and a lower control unit. The upper control unit performs a logic transition of a gate signal so as to off-latch an upper switch by using the fall edge of a drive signal as a trigger and release the off-latch of the upper switch by using the rise edge of a monitor signal as a trigger. The lower control unit performs a logic transition of the gate signal so as to off-latch a lower switch by using the rise edge of the drive signal as a trigger and release the off-latch of the lower switch by using the rise edge of a monitor signal as a trigger.

摘要翻译： 提供了一种包括上控制单元和下控制单元的电子电路。 上控制单元执行门信号的逻辑转换，以便通过使用驱动信号的下降沿作为触发来解锁锁定上开关，并通过使用上位开关的上升沿来释放上开关的断开 监控信号作为触发。 下控制单元执行门信号的逻辑转换，以便通过使用驱动信号的上升沿作为触发来使下开关断开闩锁，并且通过使用下行开关的上升沿来释放下开关的断开 监控信号作为触发。

公开(公告)号：US20080024099A1

公开(公告)日：2008-01-31

申请号：US10598845

申请日：2005-01-31

申请人： Hirokazu Oki ,  Yuzo Ide

发明人： Hirokazu Oki ,  Yuzo Ide

IPC分类号： G05F1/44 ,  H02H3/38

CPC分类号： H02M1/08 ,  H02M3/156

摘要： A switching regulator type power supply apparatus that converts an input voltage and then feeds the voltage thus converted to a smoothing circuit, and that operates in such a way that an output from the smoothing circuit becomes equal to a predetermined output voltage includes a control circuit for generating a control signal by a PWM scheme so that the output becomes equal to the predetermined output voltage, and a switching element that is switched by the control signal so as to convert the input voltage and feed the voltage thus converted to the smoothing circuit. Here, based on an external signal for turning on/off an output of the output voltage, a supply path for supplying an operating power to elements constituting the control circuit is switched between a conducting state and a non-conducting state.

摘要翻译： 一种开关调节器型电源装置，其对输入电压进行转换，然后将所转换的电压馈送到平滑电路，并且使得来自平滑电路的输出变得等于预定的输出电压的方式工作，包括用于 通过PWM方式产生控制信号，使得输出变得等于预定的输出电压，以及通过控制信号切换的开关元件，以便转换输入电压并将这样转换的电压馈送到平滑电路。 这里，基于用于接通/关断输出电压的输出的外部信号，用于向构成控制电路的元件提供工作电源的供给路径在导通状态和非导通状态之间切换。

公开(公告)号：US20070188155A1

公开(公告)日：2007-08-16

申请号：US10599177

申请日：2005-03-14

申请人： Hirokazu Oki ,  Yuzo Ide

发明人： Hirokazu Oki ,  Yuzo Ide

IPC分类号： G05F1/00

CPC分类号： H02H7/1213 ,  H02M1/32

摘要： Provided is a semiconductor integrated circuit device having an output portion that outputs via a switch element a predetermined voltage to the outside from a voltage output terminal through a voltage output line and a control portion that performs predetermined control based on a control signal inputted from outside to a signal input line or a signal input terminal that is so arranged as to be adjacent to a voltage output line or a voltage output terminal. To achieve a highly-reliable semiconductor integrated circuit device that is prevented from being broken even when the voltage output terminal and a terminal adjacent thereto are short-circuited, there is provided a voltage detection portion that detects that a voltage higher than a reference voltage is inputted to the signal input line or the signal input terminal and feeds the resultant signal to the output portion as a voltage detection signal, and the output portion opens the switch element when the voltage detection signal is provided thereto.

摘要翻译： 提供了一种半导体集成电路器件，其具有输出部分，其通过电压输出线从电压输出端经由开关元件将预定电压输出到外部，以及控制部分，其基于从外部输入的控制信号来执行预定控制， 信号输入线或信号输入端子，被布置成邻近电压输出线或电压输出端子。 为了实现即使当电压输出端子和与其相邻的端子短路时也防止其破坏的高可靠性的半导体集成电路器件，提供了一种电压检测部分，其检测到高于参考电压的电压为 输入到信号输入线或信号输入端，并将结果信号作为电压检测信号输出到输出部分，并且当提供电压检测信号时，输出部分打开开关元件。