专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US06812682B2 Switching power supply unit and semiconductor device for switching power supply 失效
标题翻译：开关电源单元和开关电源的半导体器件
公开(公告)号：US06812682B2
公开(公告)日：2004-11-02
申请号：US10309037
申请日：2002-12-04
申请人： Yoshiaki Hachiya
发明人： Yoshiaki Hachiya
IPC分类号： G05F140
CPC分类号： H02M3/156 , H02M2001/0006 , H02M2001/0032 , Y02B70/16
摘要： A control circuit for controlling an operation of a switching device includes: an output load detection circuit for receiving a feedback signal from a feedback circuit; an error amplification circuit for producing an error voltage signal based on an output signal from the output load detection circuit and a reference voltage; a drain current detection circuit for detecting a drain current; and a light load detection circuit for stopping a switching operation when the error voltage signal is lower than a lower limit voltage value while resuming the switching operation when the error voltage signal is higher than an upper limit voltage value. The reference voltage output from a reference voltage source of the light load detection circuit is selected from the lower limit voltage value and the upper limit voltage value based on the value of an output voltage from a comparator.
摘要翻译：用于控制开关装置的操作的控制电路包括：输出负载检测电路，用于从反馈电路接收反馈信号; 用于根据来自输出负载检测电路的输出信号和参考电压产生误差电压信号的误差放大电路; 用于检测漏极电流的漏极电流检测电路; 以及轻负载检测电路，用于当误差电压信号高于上限电压值时，当误差电压信号低于下限电压值时停止开关操作，同时在恢复开关操作的同时。基于来自比较器的输出电压的值，从下限电压值和上限电压值中选择从轻负载检测电路的基准电压源输出的参考电压。

22. 发明授权

US08023292B2 Switching control device 有权
标题翻译：开关控制装置
公开(公告)号：US08023292B2
公开(公告)日：2011-09-20
申请号：US12115581
申请日：2008-05-06
申请人： Yoshiaki Hachiya
发明人： Yoshiaki Hachiya
IPC分类号： H02M3/335 , G05F1/00
CPC分类号： H02M3/33507 , H02M2001/0025 , H02M2001/0032 , Y02B70/16
摘要： The present invention reduces switching noise generated in a switching control device having a switching element such as a switching power supply in linear linkage with the state of a load of the output and without increasing the control circuit scale which is a factor of cost increase. The present invention adopts a configuration of a control circuit having an ON/OFF circuit that controls the switching element such that one or both of two specified values (upper limit and lower limit) that specify triangular waves of a triangular wave generation circuit that specifies a drive oscillating frequency of the switching element is/are changed in linear linkage with the output load state.
摘要翻译：本发明降低了开关控制装置中产生的开关噪声，其具有开关电源等开关电源与输出的负载状态的线性联动，并且不增加作为成本增加的因素的控制电路规模。本发明采用控制电路的结构，其具有控制开关元件的ON / OFF电路，使得规定三角波产生电路的三角波的两个规定值（上限和下限）中的一个或两个指定开关元件的驱动振荡频率与输出负载状态线性联动地改变。

23. 发明申请

US20100073967A1 SWITCHING CONTROL CIRCUIT AND SWITCHING POWER SUPPLY 审中-公开
标题翻译：切换控制电路和切换电源
公开(公告)号：US20100073967A1
公开(公告)日：2010-03-25
申请号：US12485441
申请日：2009-06-16
申请人： Naohisa TATSUKAWA , Satoru Takahashi , Yoshiaki Hachiya
发明人： Naohisa TATSUKAWA , Satoru Takahashi , Yoshiaki Hachiya
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： A switching element controls supply of a primary current to a transformer. A basic signal generator circuit generates a PWM basic signal regardless of a control condition of the switching element. A timer circuit measures an elapsed, predetermined longer time than one cycle of the PWM basic signal since a start of ON control of the switching element. A control circuit ON controls the switching element when receiving the PWM basic signal, and OFF controls the switching element when receiving either one of a first OFF signal based on output feedback of a switching power supply and a second OFF signal based on completion of time measuring by the timer circuit.
摘要翻译：开关元件控制向变压器供电一次电流。无论开关元件的控制条件如何，基本信号发生器电路产生PWM基本信号。定时器电路测量从开关元件的开始ON控制开始经过的预定的比基本信号的一个周期更长的时间。控制电路ON在接收到PWM基本信号时控制开关元件，并且当基于开关电源的输出反馈和基于时间测量的完成接收到第二OFF信号接收到第一OFF信号中的任何一个时，OFF控制开关元件由定时器电路。

24. 发明授权

US07321223B2 Switching power supply apparatus 有权
标题翻译：开关电源装置
公开(公告)号：US07321223B2
公开(公告)日：2008-01-22
申请号：US10973916
申请日：2004-10-27
申请人： Yoshiaki Hachiya
发明人： Yoshiaki Hachiya
IPC分类号： G05F1/613 , G05F1/40
CPC分类号： H02M3/156 , H02M1/32 , H02M2001/0032 , Y02B70/16
摘要： In a switching power supply apparatus, the change in the voltage VOUT at the OUT terminal is transmitted to a V-I conversion circuit via an error amplification circuit and to an I-V conversion circuit, whereby the output voltage signal VL of the I-V conversion circuit is changed. The peak value of the drain current of a switching device changes since VL is used as the reference voltage of an overcurrent detection circuit. VL is transmitted to an intermittent oscillation control circuit having a hysteresis characteristic, and the switching device is subjected to intermittent oscillation. In the switching power supply apparatus, further reduction in power consumption can be attained during standby, particularly in a no-load condition.
摘要翻译：在开关电源装置中，OUT端子处的电压VOUT的变化通过误差放大电路和I-V转换电路被发送到V-I转换电路，从而改变I-V转换电路的输出电压信号VL。由于使用VL作为过电流检测电路的基准电压，所以开关器件的漏极电流的峰值变化。 VL被发送到具有滞后特性的间歇振荡控制电路，并且开关器件经受间歇振荡。在开关电源装置中，特别是在空载状态下，能够在待机状态下进一步降低功耗。

25. 发明申请

US20050094341A1 Switching power supply apparatus 有权
标题翻译：开关电源装置
公开(公告)号：US20050094341A1
公开(公告)日：2005-05-05
申请号：US10973916
申请日：2004-10-27
申请人： Yoshiaki Hachiya
发明人： Yoshiaki Hachiya
IPC分类号： H02M3/155 , H02M3/156 , H02H3/08
CPC分类号： H02M3/156 , H02M1/32 , H02M2001/0032 , Y02B70/16
摘要： In a switching power supply apparatus, the change in the voltage VOUT at the OUT terminal is transmitted to a V-I conversion circuit via an error amplification circuit and to an I-V conversion circuit, whereby the output voltage signal VL of the I-V conversion circuit is changed. The peak value of the drain current of a switching device changes since VL is used as the reference voltage of an overcurrent detection circuit. VL is transmitted to an intermittent oscillation control circuit having a hysteresis characteristic, and the switching device is subjected to intermittent oscillation. In the switching power supply apparatus, further reduction in power consumption can be attained during standby, particularly in a no-load condition.
摘要翻译：在开关电源装置中，OUT端子处的电压VOUT的变化通过误差放大电路和I-V转换电路被发送到V-I转换电路，从而改变I-V转换电路的输出电压信号VL。由于使用VL作为过电流检测电路的基准电压，所以开关器件的漏极电流的峰值变化。 VL被发送到具有滞后特性的间歇振荡控制电路，并且开关器件经受间歇振荡。在开关电源装置中，特别是在空载状态下，能够在待机状态下进一步降低功耗。

26. 发明授权

US06294903B1 Switching power supply 有权
标题翻译：开关电源
公开(公告)号：US06294903B1
公开(公告)日：2001-09-25
申请号：US09546507
申请日：2000-04-11
申请人： Tetsuji Yamashita , Yoshihiro Mori , Yuji Yamanishi , Yoshiaki Hachiya
发明人： Tetsuji Yamashita , Yoshihiro Mori , Yuji Yamanishi , Yoshiaki Hachiya
IPC分类号： G05F140
CPC分类号： H02M3/156 , H02M1/36 , H02M2001/0032 , Y02B70/16
摘要： A switching power supply of a step-down chopper system, which is capable of reducing power consumption and unused power supply to the output. A voltage supplied to an input main terminal is turned ON/OFF by a switching device controlled by a control circuit, and outputted to an output main terminal through a conversion circuit. An output voltage detecting circuit detects the output voltage at the output main terminal, and according to the state of the output voltage detected, a feedback circuit is controlled, so that the ON/OFF control over the switching device by the control circuit is paused (or stopped). Thus, the switching device oscillates or is paused (stopped) according to the output voltage.
摘要翻译：降压斩波系统的开关电源，其能够降低功耗并且输出未使用的电力。通过由控制电路控制的开关装置将提供给输入主端子的电压接通/断开，并通过转换电路输出到输出主端子。输出电压检测电路检测输出主端子的输出电压，根据检测出的输出电压的状态，控制反馈电路，使控制电路的开关器件的ON / OFF控制暂停（或停止）。因此，开关器件根据输出电压而振荡或暂停（停止）。

27. 发明授权

US6069501A Semiconductor device 失效
标题翻译：半导体器件
公开(公告)号：US6069501A
公开(公告)日：2000-05-30
申请号：US59214
申请日：1998-04-13
申请人： Yoshiaki Hachiya , Yuji Yamanishi , Yoshihiro Mori
发明人： Yoshiaki Hachiya , Yuji Yamanishi , Yoshihiro Mori
IPC分类号： G01R19/165 , H01L23/34 , H03F3/45 , H03K5/08 , H03K5/24 , H03K17/14 , H01L35/00
CPC分类号： H03F3/45479 , H01L23/34 , H03K5/08 , H03K5/2418 , H01L2924/0002
摘要： A semiconductor device of the present invention includes a comparator including a detection side circuit to which a detection voltage is supplied and a reference side circuit to which a reference voltage is supplied. A detection element for obtaining the detection voltage is provided inside the semiconductor device, and a reference element for obtaining the reference voltage is provided outside the semiconductor device. At least one of the detection side circuit and the reference side circuit includes a temperature dependent adjustment element for reducing a difference between a temperature characteristic of the detection voltage and a temperature characteristic of the reference voltage.
摘要翻译：本发明的半导体器件包括：比较器，其包括检测电压被提供到的检测侧电路和提供参考电压的基准侧电路。在半导体器件内设置用于获得检测电压的检测元件，并且在半导体器件的外部设置用于获得参考电压的参考元件。检测侧电路和参考侧电路中的至少一个包括用于减小检测电压的温度特性和参考电压的温度特性之间的差的温度相关调节元件。

28. 发明申请

US20090153116A1 SWITCHING CONTROLLER AND SEMICONDUCTOR DEVICE USED IN THE SAME 审中-公开
标题翻译：切换控制器和使用它的半导体器件
公开(公告)号：US20090153116A1
公开(公告)日：2009-06-18
申请号：US12326928
申请日：2008-12-03
申请人： Yoshiaki Hachiya
发明人： Yoshiaki Hachiya
IPC分类号： G05F1/56
CPC分类号： H02M3/33523 , H02M2001/0032 , H02M2001/0041 , Y02B70/16
摘要： According to the present invention, in a switching power supply, a feedback signal from an output voltage detection circuit 6 through a light emitting part 7-1 and a light receiving part 7-2 of a photocoupler 7 is combined with an output voltage signal VA from a tertiary winding 1-3 of a transformer 1, and a composite signal is inputted to an FB terminal of a control circuit 5.
摘要翻译：根据本发明，在开关电源中，将来自输出电压检测电路6至光电耦合器7的发光部分7-1的反馈信号和光接收部分7-2与输出电压信号VA 从变压器1的三次绕组1-3，并且复合信号被输入到控制电路5的FB端子。

29. 发明申请

US20080278981A1 SWITCHING CONTROL DEVICE 有权
标题翻译：开关控制装置
公开(公告)号：US20080278981A1
公开(公告)日：2008-11-13
申请号：US12115581
申请日：2008-05-06
申请人： Yoshiaki Hachiya
发明人： Yoshiaki Hachiya
IPC分类号： H02M7/5383
CPC分类号： H02M3/33507 , H02M2001/0025 , H02M2001/0032 , Y02B70/16
摘要： The present invention reduces switching noise generated in a switching control device having a switching element such as a switching power supply in linear linkage with the state of a load of the output and without increasing the control circuit scale which is a factor of cost increase. The present invention adopts a configuration of a control circuit having an ON/OFF circuit that controls the switching element such that one or both of two specified values (upper limit and lower limit) that specify triangular waves of a triangular wave generation circuit that specifies a drive oscillating frequency of the switching element is/are changed in linear linkage with the output load state.
摘要翻译：本发明降低了开关控制装置中产生的开关噪声，其具有开关电源等开关电源与输出的负载状态的线性联动，并且不增加作为成本增加的因素的控制电路规模。本发明采用控制电路的结构，其具有控制开关元件的ON / OFF电路，使得规定三角波产生电路的三角波的两个规定值（上限和下限）中的一个或两个指定开关元件的驱动振荡频率与输出负载状态线性联动地改变。

30. 发明申请

US20070047269A1 Output voltage detection circuit, isolated switching power supply, and semiconductor device 有权
标题翻译：输出电压检测电路，隔离开关电源和半导体器件
公开(公告)号：US20070047269A1
公开(公告)日：2007-03-01
申请号：US11500457
申请日：2006-08-08
申请人： Yoshiaki Hachiya
发明人： Yoshiaki Hachiya
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M2001/0009
摘要： An output voltage detection circuit is provided for accurately detecting a secondary side output voltage based on a voltage induced to an auxiliary winding in an isolated switching power supply including a transformer having the auxiliary winding. A voltage waveform processing circuit (10-1) processes the waveform of the voltage induced to the auxiliary winding (7-3), a hold circuit (10-2) holds the voltage peak value after the processing, a secondary side current detection circuit (24) detects a period during which current passes through a secondary side winding (7-2), a correction circuit (22) performs correction to decrease the peak voltage which has been held by the hold circuit (10-2) during the period, and the corrected voltage is fed back to a control circuit (9). Meanwhile, are set circuit (23) resets, for a fixed period after the current passes through the secondary side winding (7-2), the peak voltage having been held by the hold circuit (10-2).
摘要翻译：提供一种输出电压检测电路，用于基于在包括具有辅助绕组的变压器的隔离开关电源中对辅助绕组感应的电压来精确检测次级侧输出电压。电压波形处理电路（10-1）处理对辅助绕组（7-3）感应的电压的波形，保持电路（10-2）保持处理之后的电压峰值，次级侧电流检测电路（24）检测电流通过次级侧绕组（7-2）的周期，校正电路（22）进行校正，以减小在该期间内由保持电路（10-2）保持的峰值电压并且将校正的电压反馈到控制电路（9）。同时，在电流通过次级侧绕组（7-2）之后，固定电路（23）复位固定的时间段，峰值电压由保持电路（10-2）保持。

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