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1. 发明公开

US20240014741A1 INSULATED POWER SUPPLY APPARATUS AND SEMICONDUCTOR DEVICE FOR POWER SUPPLY CONTROL 审中-公开
公开(公告)号：US20240014741A1
公开(公告)日：2024-01-11
申请号：US18348405
申请日：2023-07-07
申请人： Daisuke IMADE , Hiroki MATSUDA , Takumi HYUGAJI , Yukio MURATA
发明人： Daisuke IMADE , Hiroki MATSUDA , Takumi HYUGAJI , Yukio MURATA
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/3353
摘要： An insulated power supply apparatus includes: a transformer; a switching element connected in series with a primary-side winding of the transformer; an active clamp circuit connected between terminals of the winding; and a semiconductor device for power supply control that controls the switching element and the active clamp circuit. A current-to-voltage converter element is connected in series with the switching element. The semiconductor device includes: a circuit that generates a timing to turn off the switching element based on a voltage obtained by conversion by the converter element and a predetermined turn-off threshold level; a circuit that performs ON/OFF control of the switching element in a burst mode at a predetermined load or less; and a circuit that, in the burst mode, changes a burst frequency to be lower as a load current is smaller with the number of switching times of the switching element in one burst cycle fixed.

2. 发明申请

US20200112256A1 SEMICONDUCTOR DEVICE FOR SWITCHING POWER SUPPLY AND AC-DC CONVERTOR 审中-公开
公开(公告)号：US20200112256A1
公开(公告)日：2020-04-09
申请号：US16591573
申请日：2019-10-02
申请人： Hiroki MATSUDA , Satoshi ARIMA , Yukio MURATA
发明人： Hiroki MATSUDA , Satoshi ARIMA , Yukio MURATA
IPC分类号： H02M3/335 , H02M1/08 , H02M7/217
摘要： A semiconductor device for a switching power supply includes first and second external terminals, ON and OFF timing generation circuits, and a drive pulse generation circuit. To the first and second external terminals, a feedback voltage and a voltage induced in an auxiliary winding are input, respectively. The ON and OFF timing generation circuits respectively generate timing signals turning on and off a switching element based on the voltages. The drive pulse generation circuit generates a pulse signal based on these signals. The ON timing generation circuit includes: a bottom detection circuit detecting a lowest point of the voltage of the second external terminal; and a timer circuit, and operates in a PWM mode and a quasi-resonant mode in response to a timing of an output of the timer circuit being before a timing of an output of the bottom detection circuit and the reverse case, respectively.

3. 发明授权

US10491128B2 Power controlling semiconductor device, switched-mode power supply, and method of designing the device and power-supply 有权
公开(公告)号：US10491128B2
公开(公告)日：2019-11-26
申请号：US16297382
申请日：2019-03-08
申请人： Satoshi Arima , Hiroki Matsuda , Yukio Murata
发明人： Satoshi Arima , Hiroki Matsuda , Yukio Murata
IPC分类号： H02M3/335 , H02M1/32 , H02M1/14 , H02M1/08 , H02M1/00
CPC分类号： H02M3/33523 , H02M1/08 , H02M1/14 , H02M1/32 , H02M3/335 , H02M2001/0009 , H02M2001/0048
摘要： A power controlling semiconductor device generates a drive pulse to turn on or off a switching device which applies an intermittent current to a primary side winding of a transformer in response to a voltage proportional to a present current flowing through the primary side winding of the transformer and to an output voltage detection signal from a secondary side of the transformer. The device includes a current detecting terminal and an overcurrent detecting circuit. The voltage proportional to the present current flowing through the primary side winding is applied to the current detecting terminal. The overcurrent detecting circuit compares a voltage corresponding to the voltage applied to the current detecting terminal with an upper limit current detecting voltage to detect an overcurrent. A correction current is applied to a correction resistor connected to the current detecting terminal for a shift in the voltage.

4. 发明授权

US09472095B2 Electronic apparatus and control method for electronic apparatus 有权
标题翻译：电子设备的电子设备和控制方法
公开(公告)号：US09472095B2
公开(公告)日：2016-10-18
申请号：US13993676
申请日：2011-11-24
申请人： Yuichiro Kishinami , Yasuharu Onishi , Motoyoshi Komoda , Nobuhiro Kawashima , Yukio Murata , Jun Kuroda , Shigeo Satou
发明人： Yuichiro Kishinami , Yasuharu Onishi , Motoyoshi Komoda , Nobuhiro Kawashima , Yukio Murata , Jun Kuroda , Shigeo Satou
IPC分类号： H04M1/00 , G08C23/00 , H03K17/96 , H04M1/02 , G06F1/16
CPC分类号： G08C23/00 , G06F1/1677 , H03K17/96 , H03K2217/96011 , H04M1/0245
摘要： A second housing 200 is capable of moving in a direction in which the second housing covers one surface of a first housing 100. Oscillating elements of an oscillating element group 400 are arranged in a matrix and oscillate sound waves outward from the one surface of the first housing 100. A control unit controls the plurality of oscillating elements. A sound wave sensor constitutes the same matrix as the plurality of oscillating elements and detects sound waves having a specific wavelength. The detection results of the sound wave sensor are output to the control unit. A frame body holds the plurality of oscillating elements and the sound wave sensor. The control unit oscillates sensor sound waves having a specific wavelength outward from at least one of the oscillating elements. The control unit determines that the second housing 200 covers the one surface of the first housing 100 when the sound wave sensor detects the sound waves having the specific wavelength.
摘要翻译：第二壳体200能够沿着第二壳体覆盖第一壳体100的一个表面的方向移动。振荡元件组400的摆动元件被布置成矩阵并且从第一壳体100的一个表面向外振荡声波控制单元控制多个振荡元件。声波传感器构成与多个振动元件相同的矩阵，并检测具有特定波长的声波。声波传感器的检测结果输出到控制单元。框体保持多个振动元件和声波传感器。控制单元从至少一个振荡元件向外振荡具有特定波长的传感器声波。当声波传感器检测到具有特定波长的声波时，控制单元确定第二壳体200覆盖第一壳体100的一个表面。

5. 发明申请

US20130286792A1 ELECTRONIC APPARATUS AND CONTROL METHOD FOR ELECTRONIC APPARATUS 有权
标题翻译：电子设备的电子设备和控制方法
公开(公告)号：US20130286792A1
公开(公告)日：2013-10-31
申请号：US13993676
申请日：2011-11-24
申请人： Yuichiro Kishinami , Yasuharu Onishi , Motoyoshi Komoda , Nobuhiro Kawashima , Yukio Murata , Jun Kuroda , Shigeo Satou
发明人： Yuichiro Kishinami , Yasuharu Onishi , Motoyoshi Komoda , Nobuhiro Kawashima , Yukio Murata , Jun Kuroda , Shigeo Satou
IPC分类号： G08C23/00
CPC分类号： G08C23/00 , G06F1/1677 , H03K17/96 , H03K2217/96011 , H04M1/0245
摘要： A second housing 200 is capable of moving in a direction in which the second housing covers one surface of a first housing 100. Oscillating elements of an oscillating element group 400 are arranged in a matrix and oscillate sound waves outward from the one surface of the first housing 100. A control unit controls the plurality of oscillating elements. A sound wave sensor constitutes the same matrix as the plurality of oscillating elements and detects sound waves having a specific wavelength. The detection results of the sound wave sensor are output to the control unit. A frame body holds the plurality of oscillating elements and the sound wave sensor. The control unit oscillates sensor sound waves having a specific wavelength outward from at least one of the oscillating elements. The control unit determines that the second housing 200 covers the one surface of the first housing 100 when the sound wave sensor detects the sound waves having the specific wavelength.
摘要翻译：第二壳体200能够沿着第二壳体覆盖第一壳体100的一个表面的方向移动。振荡元件组400的摆动元件被布置成矩阵并且从第一壳体100的一个表面向外振荡声波控制单元控制多个振荡元件。声波传感器构成与多个振动元件相同的矩阵，并检测具有特定波长的声波。声波传感器的检测结果输出到控制单元。框体保持多个振动元件和声波传感器。控制单元从至少一个振荡元件向外振荡具有特定波长的传感器声波。当声波传感器检测到具有特定波长的声波时，控制单元确定第二壳体200覆盖第一壳体100的一个表面。

6. 发明申请

US20130257551A1 OSCILLATOR DEVICE AND ELECTRONIC INSTRUMENT 审中-公开
标题翻译：振荡器和电子仪器
公开(公告)号：US20130257551A1
公开(公告)日：2013-10-03
申请号：US13991210
申请日：2011-11-24
申请人： Yasuharu Onishi , Jun Kuroda , Yuichiro Kishinami , Yukio Murata , Shigeo Satou , Nobuhiro Kawashima , Motoyoshi Komoda , Tatsuya Uchikawa
发明人： Yasuharu Onishi , Jun Kuroda , Yuichiro Kishinami , Yukio Murata , Shigeo Satou , Nobuhiro Kawashima , Motoyoshi Komoda , Tatsuya Uchikawa
IPC分类号： H03B5/32
CPC分类号： H03B5/32 , G01S15/08 , H04R17/005 , H04R2499/11
摘要： In an electro-acoustic transducer 100 which is an oscillator device, a flat piezoelectric film 120 that moves expansively and contractively through the application of an electric field is disposed on at least one surface of a flat elastic member 110 in which a plurality of holes 111 penetrate a principal surface thereof. Since the stiffness of the elastic member 110 is adjusted by the holes 111, the stiffness impedance with respect to the piezoelectric film 120 can be matched optimally. Thus, it is possible to suppress the amount of vibration displacement and to complement the conversion efficiency of the piezoelectric film 120.
摘要翻译：在作为振荡器装置的电声换能器100中，在扁平弹性构件110的至少一个表面上设置有通过施加电场而广泛且收缩地移动的平面压电膜120，其中多个孔111 穿透其主表面。由于通过孔111来调节弹性构件110的刚度，因此能够最佳地匹配相对于压电膜120的刚度阻抗。因此，可以抑制振动位移量并补偿压电膜120的转换效率。

7. 发明申请

US20130083630A1 OSCILLATOR AND ELECTRONIC DEVICE 有权
标题翻译：振荡器和电子设备
公开(公告)号：US20130083630A1
公开(公告)日：2013-04-04
申请号：US13703718
申请日：2011-07-14
申请人： Yasuharu Onishi , Jun Kuroda , Motoyoshi Komoda , Shigeo Satou , Yukio Murata , Yuichiro Kishinami , Nobuhiro Kawashima
发明人： Yasuharu Onishi , Jun Kuroda , Motoyoshi Komoda , Shigeo Satou , Yukio Murata , Yuichiro Kishinami , Nobuhiro Kawashima
IPC分类号： H02N2/00 , G01S15/08
CPC分类号： H02N2/001 , G01S15/08 , H04R17/00 , H04R2217/03 , H04R2440/05 , H04R2499/11
摘要： An elastic vibration plate (110) is divided into a plurality of elastic vibrating regions (112) through slits (111) having a predetermined shape, a plurality of piezoelectric vibrators (120) which are individually mounted on at least some of the plurality of elastic vibrating regions (112) on the elastic vibration plate (110) undergo elastic vibration due to application of an electric field. Therefore, it is possible to vibrate the plurality of elastic vibrating regions (112) on a single elastic vibration plate (110) using the plurality of piezoelectric vibrators (120). Therefore, it is possible to adjust the peak value and the like of the oscillation frequency at will in each of the plurality of elastic vibrating regions.
摘要翻译：弹性振动板（110）通过具有预定形状的狭缝（111）被分成多个弹性振动区域（112），多个压电振动器（120）分别安装在多个弹性体弹性振动板（110）上的振动区域（112）由于施加电场而发生弹性振动。因此，可以使用多个压电振动器（120）使多个弹性振动区域（112）振动在单个弹性振动板（110）上。因此，可以在多个弹性振动区域中的每一个中随意调整振荡频率的峰值等。

8. 发明申请

US20120257772A1 ELECTRO-ACOUSTIC TRANSDUCER, ELECTRONIC APPARATUS, ELECTRO-ACOUSTIC CONVERSION METHOD, AND SOUND WAVE OUTPUT METHOD OF ELECTRONIC APPARATUS 有权
标题翻译：电声传感器，电子设备，电声转换方法和电子设备的声波输出方法
公开(公告)号：US20120257772A1
公开(公告)日：2012-10-11
申请号：US13517478
申请日：2010-12-17
申请人： Yasuharu Onishi , Shigeo Sato , Jun Kuroda , Yukio Murata , Yuichiro Kishinami , Nobuhiro Kawashima , Motoyoshi Komoda
发明人： Yasuharu Onishi , Shigeo Sato , Jun Kuroda , Yukio Murata , Yuichiro Kishinami , Nobuhiro Kawashima , Motoyoshi Komoda
IPC分类号： H04R17/00
CPC分类号： H04R23/02 , H04R9/06 , H04R17/00 , H04R2499/11
摘要： There are provided a vibration film (21) having a piezoelectric element, a magnetic circuit (20) which generates magnetic force on the basis of a first electric signal and vibrates the vibration film (21) by the magnetic force; and an adjustment unit (31) which generates a second electric signal on the basis of the first electric signal and applies a voltage based on the second electric signal between both surfaces of the piezoelectric element. The amplitude of the entire vibration film (21) is expanded by making the vibration by the magnetic force, which is generated from the magnetic circuit (20), and the vibration, which is generated by application of a voltage to the piezoelectric element, synchronize with each other.
摘要翻译：提供了具有压电元件的振动膜（21），基于第一电信号产生磁力的磁路（20），并通过磁力使振动膜（21）振动; 以及调整单元（31），其基于第一电信号产生第二电信号，并且在压电元件的两个表面之间施加基于第二电信号的电压。通过由磁路（20）产生的磁力产生振动，并且通过向压电元件施加电压而产生的振动使整个振动膜（21）的振幅扩大，从而同步与彼此。

9. 发明授权

US08116506B2 Speaker, image element protective screen, case of terminal and terminal 有权
标题翻译：扬声器，图像元件保护屏，终端和终端盒
公开(公告)号：US08116506B2
公开(公告)日：2012-02-14
申请号：US12064779
申请日：2006-11-02
申请人： Jun Kuroda , Hideki Ueda , Yukio Murata , Ukyo Mori , Yasuhiro Sasaki , Yasuharu Ohnishi
发明人： Jun Kuroda , Hideki Ueda , Yukio Murata , Ukyo Mori , Yasuhiro Sasaki , Yasuharu Ohnishi
IPC分类号： H04R1/02
CPC分类号： H04R5/02 , H04M1/0216 , H04M1/0266 , H04M1/03 , H04R1/02 , H04R2499/15
摘要： Arrangement of an internal component (not shown) arranged in the vicinity of the top side is different from that of the hinge side of an image element protective screen (2). An actuator (5) is fixed to the top side of the image element protective screen (2) and an actuator (4) is fixed to the hinge side of the image element protective screen (2). Since Arrangement of the internal component in the vicinity of the actuator is different, different sound pressure frequency characteristics or the like are experienced when each actuator is driven independently. When the actuators (4, 5) are driven simultaneously, sound pressure frequency characteristics and vibration frequency characteristics can be flattened. Isolation between the vibration speed of a vibrator near one actuator and the vibration speed of a vibrator in the region near the other actuator that are produced by respective actuators is set at 10 dB or above.
摘要翻译：布置在顶侧附近的内部部件（未示出）的布置与图像元件保护屏（2）的铰链侧的布置不同。致动器（5）固定在图像元件保护屏（2）的顶侧，致动器（4）固定在图像元件保护屏（2）的铰链侧。由于致动器附近的内部部件的配置不同，因此当各个致动器被独立地驱动时，经历不同的声压频率特性等。当致动器（4,5）同时被驱动时，声压频率特性和振动频率特性可以变平。在一个致动器附近的振动器的振动速度与由各个致动器产生的另一致动器附近的区域中的振动器的振动速度之间的隔离设置为10dB或更高。

10. 发明申请

US20090045700A1 PIEZOELECTRIC ACTUATOR AND ELECTRONIC DEVICE 失效
标题翻译：压电致动器和电子器件
公开(公告)号：US20090045700A1
公开(公告)日：2009-02-19
申请号：US12281974
申请日：2007-02-20
申请人： Yasuhiro Sasaki , Yasuharu Oonishi , Jun Kuroda , Yukio Murata , Ukyou Mori
发明人： Yasuhiro Sasaki , Yasuharu Oonishi , Jun Kuroda , Yukio Murata , Ukyou Mori
IPC分类号： H01L41/053
CPC分类号： B06B1/0603 , H01L41/053 , H01L41/094 , H04R17/00
摘要： There is provided a piezoelectric actuator and the like capable of efficiently transmitting vibration between an object (e.g., a housing of an electronic device) and a piezoelectric ceramic vibrator. The piezoelectric actuator 50A includes a piezoelectric ceramic vibrator 15 and a holder 12 to hold an edge section thereof and functions as, for example, a vibrator by propagating deflective vibration of the vibrator 15 via the holder 12 to an elastic body 14 as the object. A subsidiary holder 13 is disposed between the vibrator 15 and the elastic body 14, and part of the deflective vibration of the vibrator 15 is propagated via the elastic body 14.
摘要翻译：提供能够在物体（例如电子设备的壳体）和压电陶瓷振动器之间有效地传递振动的压电致动器等。压电致动器50A包括压电陶瓷振动器15和用于保持其边缘部分的保持器12，并且通过经由保持器12将振动器15的偏转振动传播到作为对象的弹性体14而用作例如振动器。辅助保持器13设置在振动器15和弹性体14之间，并且振动器15的偏转振动的一部分经由弹性体14传播。

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