Sansha Electric Manufacturing Co., Ltd.
|Sansha Electric Manufacturing Co., Ltd. Patent applications|
|Patent application number||Title||Published|
|20120299164||PIN DIODE - A PIN diode having improved avalanche resistance is provided. The PIN diode includes: a semiconductor substrate||11-29-2012|
|20120299163||PIN DIODE - Provided is a PIN diode that can suppress thermal destruction from occurring at the time of a reverse bias exceeding a breakdown voltage by current concentration on a curved part of an anode region. The PIN diode is configured to have: a semiconductor substrate||11-29-2012|
|20120223058||NON-CONSUMABLE ELECTRODE TYPE ARC WELDING APPARATUS - A non-consumable electrode type arc welding apparatus includes a torch having an electrode portion and a nozzle, a gas supply that supplies, to the torch, a shielding gas flowing through a gap formed between the electrode portion and the nozzle, a first power source that applies a voltage between the electrode portion and the nozzle to generate a pilot arc, a second power source that applies a voltage between the electrode portion and a work to generate a main arc, and a controller that controls the first power source and the second power source. The electrode portion has an electrode and an electrode holding portion holding a base portion of the electrode, the electrode holding portion has a protrusion protruding toward the nozzle from the side facing the nozzle, and the protrusion and the nozzle are caused contact and separate from each other.||09-06-2012|
|20100128441||ARC DISCHARGE DEVICE - [Object] To incorporate more semiconductor elements in a small-sized lightweight power semiconductor module provided in an arc discharge device.||05-27-2010|
|20100127387||POWER SEMICONDUCTOR MODULE||05-27-2010|
|20090303763||PHOTOVOLTAIC INVERTER - A photovoltaic inverter that can respond to changes in temperature and the amount of sunlight and that can automatically start up is provided, which has a simple configuration and is inexpensive. The photovoltaic inverter has a first voltage detection means for detecting an output voltage of a photovoltaic panel; a current detection means, a control means and a driving means. It further has a model voltage storage means for storing a model voltage table of inverter start-up kick voltages produced based on variation values of an amount of sunlight, a model voltage read-out means, a second voltage detection means for detecting an inverter start-up kick voltage, and an inverter start-up control means.||12-10-2009|
|20090133735||SOLAR PHOTOVOLTAIC POWER GENERATION ARTIFICIAL-POWER GENERATING METHOD AND SOLAR PHOTOVOLTAIC POWER GENERATION SIMULATOR POWER-SUPPLY APPARATUS - A method for artificially generating the output characteristic of a solar photovoltaic power generation module, and a solar photovoltaic power generation simulator power-supply apparatus having that output characteristic with the internal power loss reduced. The solar photovoltaic power generation simulator power-supply apparatus includes an IV storing means for storing, as IV curves, the voltage/current characteristics of solar photovoltaic power generations; an IV reading means; and means for generating an IV characteristic as an output target value of automatic control. The solar photovoltaic power generation simulator power-supply apparatus reads a designated particular IV curve from among the stored IV curves to generate a control signal for holding V associated with I on this curve, and supplies this control signal to a semiconductor switching element, which controls the power, thereby artificially generating a solar photovoltaic power generation output characteristic. The solar photovoltaic power generation simulator power-supply apparatus includes a control signal circuit that controls the power so as to maintain the output at the voltage associated with the current on the designated IV curve; and a power conversion main circuit from which series resistors have been eliminated.||05-28-2009|
|20090084768||PLASMA ARC POWER SUPPLY AND CONTROL METHOD THEREFOR - A plasma arc power supply with a simple structure and its control method enable shifting from a pilot arc to a main arc. A plasma arc power supply used in a plasma arc apparatus that processes a workpiece by forming a pilot arc between a main electrode and a nozzle electrode and subsequently forming a main arc between the main electrode and the workpiece includes N direct current power supply units (N≧2) having negative terminals connected to the main electrode and positive terminals to the workpiece, and a switch between the fourth power supply unit and the workpiece. The fourth power supply unit is connected to cause the nozzle electrode to have an opposite polarity to the main electrode. When the switch is open, the fourth power supply unit supplies a small current between the main electrode and the nozzle electrode while forming a pilot arc between them.||04-02-2009|
|20080315790||DISCHARGE LAMP LIGHTING CONTROL METHOD, COMPUTER PROGRAM, DISCHARGE LAMP LIGHTING CONTROL APPARATUS, AND POWER SUPPLY CIRCUIT - Lighting of a discharge lamp is controlled in a manner to reduce deterioration of the discharge lamp subjected to high temperature and extend the lifetime of the discharge lamp. A method for controlling lighting of the discharge lamp includes a first constant current control process (period T||12-25-2008|
|20080315781||DISCHARGE LAMP LIGHT-UP CONTROL APPARATUS AND POWER CIRCUIT - The present invention is directed to realize an optimum lamp control with an inexpensive configuration in a discharge lamp light-up control apparatus. A constant current control unit controls light-up of a discharge lamp by transmitting a control signal to an inverter and includes: a storage for storing lamp characteristics of the discharge lamp; and a CPU for obtaining information indicative of a type of the discharge lamp attached, reading the lamp characteristics from the storage based on the obtained type information, and transmitting a control signal to the inverter so that an output corresponding to the read lamp characteristics are obtained.||12-25-2008|
Patent applications by Sansha Electric Manufacturing Co., Ltd.