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1. 发明授权

US5182702A Inverter device 失效
标题翻译：逆变器装置
公开(公告)号：US5182702A
公开(公告)日：1993-01-26
申请号：US633612
申请日：1990-12-24
申请人： Akinori Hiramatsu , Futoshi Okamoto , Hiroshi Kido , Hiroyuki Sako , Yukio Yamanaka , Koji Yamada
发明人： Akinori Hiramatsu , Futoshi Okamoto , Hiroshi Kido , Hiroyuki Sako , Yukio Yamanaka , Koji Yamada
IPC分类号： H02M1/00 , H02M1/42 , H02M3/338 , H05B41/28
CPC分类号： H02M1/425 , H02M3/3387 , H05B41/28 , Y02B70/126 , Y10S315/07
摘要： An inverter device has a full-wave rectifier providing a pulsating DC voltage from an input AC voltage, a smoothing circuit. The smoothing circuit includes a choke coil, a smoothing capacitor and a switching element chopping the pulsating DC voltage through the choke coil into a smoothed DC voltage at the smoothing capacitor. An inverter is included to have the element common to the smoothing circuit and operating to switch the smoothed DC voltage to apply a resulting voltage to a load circuit including a load, inductance and capacitor. The inductance and capacitor define an oscillation circuit providing to the load an oscillating current composed of first and second currents of opposite directions. The oscillating current alternating to flow for a nominal on-time duration determined by a circuit constant of the oscillation circuit itself. A controller is included to detect the termination of the second current and excites the common switching element at a timing dependent upon the termination of the second current so as to start flowing the first current. The controller includes a timer for separately controlling an actual on-time duration for flowing the first current within the nominal on-time duration, whereby enabling to regulate the accumulated DC voltage in the smoothing capacitor at a desired level by controlling to vary the actual on-time duration of the common switching element.

2. 发明申请

US20090295778A1 OLED Driver and Lighting Apparatus Equipped With the Driver 审中-公开
标题翻译：配有驱动器的OLED驱动器和照明设备
公开(公告)号：US20090295778A1
公开(公告)日：2009-12-03
申请号：US12085371
申请日：2006-11-21
申请人： Minoru Maehara , Futoshi Okamoto , Akinori Hiramatsu , Tomoyuki Nakano , Hiroki Kawanami
发明人： Minoru Maehara , Futoshi Okamoto , Akinori Hiramatsu , Tomoyuki Nakano , Hiroki Kawanami
IPC分类号： G06F3/038
CPC分类号： H05B33/0896
摘要： An OLED driver possesses a square-wave voltage source, a controller and a detector. In accordance with first control, the source generates square-wave voltage and applies the voltage across at least one organic electroluminescence element to drive the element. The controller controls the source in accordance with the first control. The detector detects equivalent capacitance inherent in the element. The controller also judges whether or not the element is normal based on the equivalent capacitance. If the element is normal, the controller operates in accordance with the first control. If the element is not normal, the controller operates in accordance with predetermined second control for the element which is not normal.
摘要翻译： OLED驱动器具有方波电压源，控制器和检测器。根据第一控制，源产生方波电压并施加至少一个有机电致发光元件上的电压来驱动该元件。控制器根据第一个控制器控制源。检测器检测元件中固有的等效电容。控制器还根据等效电容判断元件是否正常。如果元件正常，则控制器根据第一控制器操作。如果元件不正常，则控制器根据对于不正常的元件的预定的第二控制来操作。

3. 发明授权

US4564897A Power source 失效
标题翻译：能量源
公开(公告)号：US4564897A
公开(公告)日：1986-01-14
申请号：US566986
申请日：1983-12-30
申请人： Futoshi Okamoto , Masataka Mitani
发明人： Futoshi Okamoto , Masataka Mitani
IPC分类号： B65G57/18 , B65G47/29 , B65G47/88 , H02M3/338 , H05B41/28 , H02M7/537
CPC分类号： H05B41/28 , B65G47/8815 , B65G47/8846 , B65G47/8884 , H02M3/3387 , B65G2205/04 , Y02P70/30
摘要： A power source for providing a high frequency ac output voltage is provided with a rectifier, a smoothing circuit with an inductor and a smoothing capacitor, and an inverter having a switching device for switching the input dc voltage from the rectifier to provide a high frequency ac voltage output with reduced ripple. Also included in the smoothing circuit is a charge storage device by the operation of which the inductor receives electromagnetic energy from the current therein when the switching device is switched on and electromagnetic energy is fed to the smoothing capacitor to charge the same when the switching device is switched off, with the resulting voltage developed across the capacitor being applied to the inverter input. The charge storage device includes the inductor of the smoothing circuit and the switching device common to the inverter, such that the charge storage device is of the chopper-type which enables the inductor to be reduced to a smaller value while allowing it to retain a high power factor, and such that it can be readily incorporated in the power supply without requiring any additional switching devices and without undue increase in the component costs.
摘要翻译：提供高频交流输出电压的电源设置有整流器，具有电感器的平滑电路和平滑电容器，以及具有用于切换来自整流器的输入直流电压以提供高频交流的开关装置的逆变器电压输出，纹波减小。平滑电路中还包括电荷存储装置，当开关装置接通时，电感器从其中的电流接收电磁能，并且当开关装置为关断，电容器上产生的电压被施加到逆变器输入端。电荷存储装置包括平滑电路的电感器和逆变器公共的开关装置，使得电荷存储装置是斩波器型，其使得电感器能够被减小到更小的值，同时允许其保持高电平功率因数，并且使得其可以容易地并入电源而不需要任何额外的开关装置，并且不会过度增加部件成本。

4. 发明授权

US4499533A Power supply apparatus 失效
标题翻译：电源设备
公开(公告)号：US4499533A
公开(公告)日：1985-02-12
申请号：US471525
申请日：1983-03-02
申请人： Futoshi Okamoto
发明人： Futoshi Okamoto
IPC分类号： H02M1/14 , H02M3/10 , H02M7/06 , H02M7/12 , H02M7/48 , H02M7/537 , H02M7/538 , H02M7/5387
CPC分类号： H02M7/537 , H02M1/14 , H02M3/10 , H02M7/06 , H02M2001/009 , Y02B70/1441 , Y10S315/07 , Y10T307/25
摘要： A power supply apparatus is structured such that the output of an alternating current voltage source (1) is connected to the input of a rectifying circuit (2), a series connection of a first smoothing capacitor (3a), a diode (15) and a second smoothing capacitor (3b) is connected to the output of the rectifying circuit so that the rectifying direction of the diodes may be opposite to the rectifying direction of the rectifying circuit, a first load (4a) is connected in parallel with the series connection portion of the first smoothing capacitor and the diode, and a second load (4b) is connected in parallel with the series connection portion of the second smoothing capacitor and the diode. Accordingly, during a period in which a ripple voltage of the output from the rectifying circuit is high, the first and second smoothing capacitors are charged and a current flows into the first and second loads, and during a period in which a ripple voltage of the output from the rectifying circuit is low a current flows from the first smoothing capacitor through the diode to the first load and a current flows from the second smoothing capacitor through the diode to the second load, whereby a stabilized voltage of little ripple component can be supplied to the first and second loads.
摘要翻译：电源装置被构造成使得交流电压源（1）的输出连接到整流电路（2）的输入，第一平滑电容器（3a），二极管（15）和第二平滑电容器（3b）连接到整流电路的输出端，使得二极管的整流方向与整流电路的整流方向相反，第一负载（4a）与串联连接第一平滑电容器和二极管的一部分，第二负载（4b）与第二平滑电容器和二极管的串联连接部并联连接。因此，在整流电路的输出的纹波电压高的期间，对第一和第二平滑电容器进行充电，并且电流流入第一和第二负载，并且在其中的纹波电压整流电路的输出为低电流从第一平滑电容器通过二极管流向第一负载，并且电流从第二平滑电容器通过二极管流到第二负载，由此可以提供小波纹分量的稳定电压到第一和第二负载。

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