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| Application No. | Application Title | Issue Date |
| 20120014139 | POWER CONVERTING APPARATUS In a power converting apparatus which converts AC power into DC power, an inverter circuit including at least one series-connected single-phase inverter is connected in a downstream of a stage in which an AC input is rectified in series therewith. In the downstream stag... | 01/19/2012 |
| 20110280049 | POWER CONVERTING APPARATUS A power converting apparatus is configured with single-phase sub-converters (4) connected to AC input lines of individual phases of a three-phase main converter (3) in series therewith. In a control device (12) for performing output control of the p... | 11/17/2011 |
| 20110273916 | POWER CONVERTING APPARATUS A power converting apparatus includes a first inverter (3) connected to a first DC power supply (1) and a plurality of second inverters (4A, 4B) connected in series to the first DC power supply (1). The plurality of second inverters (<... | 11/10/2011 |
| 20110215651 | POWER CONVERSION APPARATUS In a power conversion apparatus that converts AC power to DC power, an inverter circuit including one or more single-phase inverters connected in series with each other is connected in series at the subsequent stage of a rectification of an AC input. At the subsequent s... | 09/08/2011 |
| 20110211381 | POWER CONVERTING APPARATUS A neutral point clamped three-phase three-level inverter is connected to a first DC power supply and single-phase inverters are connected in series with AC output lines of individual phases of the three-phase three-level inverter such that sums of output voltages of the... | 09/01/2011 |
| 20110181250 | POWER SUPPLY APPARATUS A power supply apparatus includes: an AC generator including an AC generating section, and a rectifier for rectifying an AC voltage generated in the AC generating section, and outputting a DC voltage; and a DC/DC converter for converting the output voltage of the rectif... | 07/28/2011 |
| 20110128763 | POWER CONVERTING APPARATUS A power converting apparatus is provided with three sets of half-bridge inverters (4a-4c) connected between output terminals of a solar battery (1), each of the half-bridge inverters (4a-4c) including two se... | 06/02/2011 |
| 20110121661 | POWER CONVERSION DEVICE In a power conversion device which performs DC/DC conversion, an inverter circuit (20), which is formed of one or more single-phase inverters (20a) and (20b) connected in series to each other, is connected in series to a DC power suppl... | 05/26/2011 |
| 20110114604 | ELECTRIC DISCHARGE MACHINING APPARATUS, ELECTRIC DISCHARGE MACHINING METHOD, AND SEMICONDUCTOR SUBSTRATE MANUFACTURING METHOD An electric discharge machining apparatus includes: electrodes the total quantity of which is equal to N; an alternating-current power source; and capacitors the total quantity of which is equal to N. The alternating-current power source applies an alternating voltage c... | 05/19/2011 |
| 20110089765 | POWER CONVERTING APPARATUS A power converting apparatus includes a first inverter circuit including a high-voltage first DC voltage source and operated at a low frequency using Si IGBTs having a high withstand voltage exceeding 1000 V and a second inverter circuit including a low-voltage capacito... | 04/21/2011 |
| 20100177540 | POWER CONVERSION APPARATUS In a power conversion apparatus that boosts a solar light voltage, converts it to AC and supplies AC power to a load or system, power loss is reduced and efficiency is improved. An inverter unit, in which AC sides of three single-phase inverters receive DC power from re... | 07/15/2010 |
| 20100073082 | RECTIFIER Provided is a highly efficient rectifier which can readily replace a two-terminal diode and whose conduction loss is reduced from that of the two-terminal diode. Connected between the source and drain of a MOSFET (2) including a para... | 03/25/2010 |
| 20100052598 | POWER REGENERATIVE CONVERTER There are provided a smoothing capacitor (71) for storing an induced electromotive force generated by a three-phase induction motor (5), a regenerative transistor (81 to 86) for switching a terminal voltage of the smoothing capacitor to carry... | 03/04/2010 |
| 20100019753 | DC/DC POWER CONVERTING APPARATUS Three or more circuits including a driving inverter circuit and rectifier circuits are connected in series, each of the circuits including a high-voltage side MOSFET and a low-voltage side MOSFET connected in series as well as a smoothing capacitor having positive and n... | 01/28/2010 |
| 20100014335 | THREE-PHASE POWER CONVERTING APPARATUS A three-phase inverter circuit (4) of which DC portion is smoothing capacitors (3) connected between output terminals of a solar battery (1) and single-phase inverters (5a-5c) connected in series with AC output lines of t... | 01/21/2010 |
| 20090261793 | DC/DC POWER CONVERTING APPARATUS Three or more circuits, in which series-connected low-voltage and high-voltage side switches including MOSFETs including parasitic diodes are connected across positive and negative terminals of each of smoothing capacitors, are connected in series. One of elementary ser... | 10/22/2009 |
| 20090116268 | POWER CONVERTING APPARATUS A converter controllable in regenerative running mode, which is a power converting apparatus capable of suppressing harmonics without increasing the size of a reactor, and reducing power loss and electromagnetic noise. A power converter is configured by directly connect... | 05/07/2009 |
| 20080252145 | DC/DC POWER CONVERSION DEVICE A DC/DC power conversion device includes n-stage circuits comprised of an inverter circuit for driving which is connected between positive terminals and negative terminals of smoothing capacitors, and a rectifier circuit which is connected between positive terminals and... | 10/16/2008 |
| 20080192519 | Power Conversion Apparatus In a power conversion apparatus that boosts a solar light voltage, converts it to AC and supplies AC power to a load or system, power loss is reduced and efficiency is improved. An inverter unit, in which AC sides of three single-phase inverters receive DC power from re... | 08/14/2008 |
| 20080136977 | PROJECTION DISPLAY A projection display uses a light modulating device to modulate, in accordance with image data, light radiated from a light source, project the modulated light onto a screen, and display an image. The projection display separates a unit of time configuring the image dat... | 06/12/2008 |
| 20080110865 | Wire Electric Discharge Machining Apparatus And Wire Electric Discharge Machining Method A discharge-generation control unit applies at least a preliminary-discharge voltage pulse and a main-discharge voltage pulse between a wire electrode and a work. A discharge-position determining unit determines a discharge position from results of measurement by a plur... | 05/15/2008 |
| 20080106220 | DISCHARGE LAMP LIGHTING APPARATUS A discharge lamp lighting apparatus includes a DC-DC converter for outputting voltages having respective different potentials from two wirings, a switching circuit having input terminals connected to the two wirings, an output terminal connected to one electrode of a di... | 05/08/2008 |
| 20080101101 | Power Conversion Apparatus A power conversion apparatus includes a first single-phase inverter that uses ask a DC power source a first DC voltage that is boosted from a solar light voltage by a boosting chopper circuit. The first single-phase inverter is arranged between two single-phase inverter... | 05/01/2008 |
| 20070223256 | Power Device The present invention provides a power device including a converter part (2) for converting an AC voltage to a DC voltage; an inverter part (3) for converting the DC voltage outputted from the converter part (2) to the AC voltage; and a transformer ... | 09/27/2007 |
| 20070205727 | PLASMA-GENERATION POWER-SUPPLY DEVICE A plasma-generation power-supply device includes a transformer connected to an alternating-current power-supply, a rectifier connected to the transformer, an inverter connected to the rectifier a reactor inserted in series in a power line of an ozonizer that is supplied... | 09/06/2007 |
| 20070200955 | DISPLAY APPARATUS A display apparatus comprises a light source temperature controlling means for controlling the light source temperature so that the temperature remains within a predetermined temperature range; a light modulation device for displaying images by receiving light emitted f... | 08/30/2007 |
| 20070194627 | Power converting device A power converting device includes a single-phase multiplex converter used as an active filter and a control device. The single-phase multiplex converter includes multiple single-phase inverters connected in series at AC output sides. Each of the single-phase inverters ... | 08/23/2007 |
| 20070164613 | Power supply apparatus An uninterrupted power supply unit is provided with a straightforward switch connected between a power source and a load to supply or interrupt a power to a system. The combination of the outputs from two kinds of single phase inverters enables compensating for a variat... | 07/19/2007 |
| 20070164685 | Discharge lamp lighting apparatus A discharge lamp lighting apparatus includes: a DC power supply to supply power to a HID lamp; a transformer to transmit a voltage of DC power supply to the HID lamp; a switch connected between the DC power supply and a primary winding of the transformer; switches conne... | 07/19/2007 |
| 20070024207 | LAMP LIGHTING APPARATUS A lamp lighting apparatus includes an arc spot movement detector (5) for monitoring an DC voltage Vb which is the bus voltage of an inverter (3), and for detecting a movement of an arc spot which appears before a lamp 1 enters a state where human be... | 02/01/2007 |
| 20060061299 | Discharge lamp lighting apparatus A discharge lamp lighting apparatus includes a DC-DC converter for outputting voltages having respective different potentials from two wirings, a switching circuit having input terminals connected to the two wirings, an output terminal connected to one electrode of a di... | 03/23/2006 |
| 20060055367 | Battery power circuit and automobile battery power circuit A load is connected to a first battery group. The first battery group and a second battery group are connected in series to each other. A bidirectional DC/DC converter for electric power migration between the first battery group and the second battery group is provided.... | 03/16/2006 |
| 20050179406 | Discharge lamp ballast circuit A discharge lamp ballast circuit is provided which can prolong the life of a discharge lamp, and reduce the size and cost of the ballast circuit. It generates from an AC voltage boosted by a DC-AC inverter circuit a DC voltage higher than the breakdown voltage of an HID... | 08/18/2005 |
| 20050140345 | Redundancy circuit for series-connected diodes A redundancy circuit for a diode circuit composed of a plurality of diodes connected in series, according to the present invention, includes: bypass circuits, each of which is connected in parallel to each group, the diode circuit being divided into a plurality of group... | 06/30/2005 |
| 20050057181 | High intensity discharge lamp ballast apparatus A compact, low cost high intensity discharge lamp ballast apparatus which can carry out normal ballasting without extinction at discharge start includes a DC-AC inverting booster circuit, a first resonance circuit, and a second resonance circuit. The DC-AC inverting boo... | 03/17/2005 |
| 20050041348 | Semiconductor switching device Self-quenching switching elements are connected in series in a semiconductor switching device. Snubber circuits including a diode, a capacitors, and a non-linear circuit are connected in parallel with the respective semiconductor switching elements. In the snubber circu... | 02/24/2005 |
