Asian Power Devices Inc. Patent applications |
Patent application number | Title | Published |
20160043631 | PASSIVE COUPLED-INDUCTOR SOFT-SWITCHING CIRCUIT OF POWER FACTOR CORRECTORS - A passive coupled-inductor soft-switching circuit of a power factor corrector is provided. The passive coupled-inductor soft-switching circuit includes a power input terminal, a first inductor, a first diode, a power output terminal, a power switch and a buffer circuit. The first inductor has a first terminal and a second terminal, wherein the first terminal of the first inductor is electrically coupled with the power input terminal. The first diode has a positive terminal and a negative terminal, wherein the positive terminal of the first diode is electrically coupled with the second terminal of the first inductor. The power output terminal is electrically coupled with the negative terminal of the first diode. The buffer circuit is electrically coupled with the power switch. By using the buffer circuit, the voltage and current have phase interlacing shifts and thereby reducing the switching loss. | 02-11-2016 |
20160043630 | PASSIVE SOFT-SWITCHING CIRCUIT OF POWER FACTOR CORRECTORS - A passive soft-switching circuit of a power factor corrector is provided. The passive soft-switching circuit includes a power input terminal, a first inductor, a first diode, a power output terminal, a power switch and a buffer circuit. The first inductor has a first terminal and a second terminal, wherein the first terminal of the first inductor is electrically coupled with the power input terminal. The first diode has a positive terminal and a negative terminal, wherein the positive terminal of the first diode is electrically coupled with the second terminal of the first inductor. The power output terminal is electrically coupled with the negative terminal of the first diode. The buffer circuit is electrically coupled with the power switch. By using the buffer circuit, the voltage and current have phase interlacing shifts and thereby reducing the switching loss. | 02-11-2016 |
20150035418 | POWER SUPPLY CASE HAVING WATERPROOF STRUCTURE - A power supply case having a waterproof structure includes an upper case and a lower case, a waterproof structure is formed by a waterproof groove and a waterproof rib. After the upper case and the lower case are engaged, an engaged status is formed by the waterproof rib and the waterproof groove, and the power supply case is formed with at least an open zone penetrated in the area where the waterproof structure is formed, and characterized in that: a surface of the open zone defined in the waterproof groove is inwardly formed with an extended groove part which is communicated with the waterproof groove. The waterproof structure is able to be matched with a waterproof strip, and the length of the waterproof strip is able to be longer than the length of the waterproof groove. | 02-05-2015 |
20140049992 | Switching Power Supply - A switching power supply is suitable for transforming AC input voltage to DC output voltage. The switching power supply includes a transformer, a power circuit, an output circuit, a switching element, a control element, a shielding element and a metal element. The power circuit is coupled to the primary side of the transformer to receive AC input voltage. The output circuit is coupled to the secondary side of the transformer to provide DC output voltage to the load. The switching element is coupled to the primary side of the transformer, and is coupled to the primary side ground. The control element is coupled to the switching element to control the switch of the switching element. The shielding element is surrounded onto the transformer, and is coupled to the primary side ground. The metal element is leaned against the switching element, and is coupled to the primary side ground. | 02-20-2014 |
20130017705 | POWER SUPPLY STRUCTUREAANM LAI; YU-CIAACI Taoyuan CityAACO TWAAGP LAI; YU-CI Taoyuan City TWAANM CIOU; CHUEI-HANGAACI Taoyuan CityAACO TWAAGP CIOU; CHUEI-HANG Taoyuan City TWAANM LEE; DA-WEIAACI Taoyuan CityAACO TWAAGP LEE; DA-WEI Taoyuan City TW - A power supply structure includes a main body and a plug. The main body has a circular containing space, a cylinder and a plurality of conducting plates. The cylinder has a retaining plane and at least one annular groove. The plug has a plug seat and a first cylinder. The first cylinder has a protrusion and at least one elastic device on an inner side of the bottom of the first cylinder. The elastic device has a resilient arm and a pressing member. The annular groove has a stop block and a fixing space. The protrusion is provided and placed into the annular groove, so that the plug can be fixed into the main body. | 01-17-2013 |