Po-Li
Po-Li Chen, Chutung TW
Patent application number | Description | Published |
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20140078783 | FULL-BRIDGE QUASI RESONANT DC-DC CONVERTER AND DRIVING METHOD THEREOF - A full-bridge quasi-resonant DC-DC converter is provided, including a transformer having a primary winding and a secondary winding, a full-bridge converting circuit electrically connected with the primary winding of the transformer, a resonant capacitor provided between the full-bridge converting circuit and the primary winding, a rectifier circuit electrically connected with the secondary winding of the transformer, and a resonant inductor connected in series with the rectifier circuit. Therefore, the full-bridge quasi-resonant DC-DC converter reduces the switching losses of the switching elements and effectively reduces the size of the converter, while increases the conversion efficiency. | 03-20-2014 |
20140085937 | DC-DC CONVERTER AND METHOD OF DRIVING THE SAME - A DC-DC converter includes a power conversion circuit for converting a DC input voltage to a DC output voltage; and an active clamp circuit for soft switching a first active switching element of the power conversion circuit and recovering leakage inductance energy of a main transformer of the power conversion circuit, As such, the present disclosure provides a DC-DC converter that reduces the switching loss of the switching elements and effectively recovers the leakage inductance energy, thus increasing the conversion efficiency of the converter. | 03-27-2014 |
Po-Li Chen, Erlin Township TW
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20150288295 | ENERGY VOLTAGE REGULATOR AND CONTROL METHOD APPLICABLE THERETO - A control method for an energy voltage regulator includes: detecting an output AC signal of a current cycle to generate a reference current command; comparing the reference current command with a reference upper power limit; and if the reference current command is lower than the reference upper power limit, generating a first current command based on the reference current command, to perform a discontinuous conduct control and to operate the energy voltage regulator under a discontinuous conduct state. | 10-08-2015 |
Po-Li Chen, Changhua County TW
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20160099659 | OUTPUT POWER ADJUSTING METHOD FOR INVERTER - An output power adjusting method is applied on an inverter. The inverter includes a capacitor to store direct current (DC) electricity provided by a photovoltaic (PV) module. At least the DC electricity provided by the PV module is converted into alternating current (AC) electricity. Determine whether a power value of the AC electricity exceeds a power threshold. When the AC electricity exceeds the power threshold, the inverter works in a continuous mode. When the AC electricity does not exceed the power threshold, the inverter works in a discontinuous mode where the PV module charges the capacitor. In the discontinuous mode, determine whether a voltage on the capacitor exceeds a reference voltage, and when the voltage on the capacitor exceeds the reference voltage, the DC electricity provided by the PV module and DC electricity in pulses provided by the capacitor are converted to the AC electricity. | 04-07-2016 |
Po-Li Hsieh, Douliou City TW
Patent application number | Description | Published |
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20090320534 | Lock device - The invention discloses a lock device. The lock device is used for detachably mounting a cover on a base. A recess is formed on the cover. A first hole is formed on the bottom of the recess, and a first retainer is extended out of the bottom of the recess. The lock device includes a first sliding member, a first elastomer, and a second sliding member. A column which is capable of passing through the first hole is formed on the first sliding member. A second retainer which is used for the first retainer to lock is formed on the second sliding member. When the first sliding member slides toward the base along a first axle, the column pushes the second retainer to make the second sliding member slide toward a second axle, so as to make the second retainer separate from the first retainer. | 12-31-2009 |
Po-Li Hsieh, Yunlin Shien TW
Patent application number | Description | Published |
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20090167124 | Hard disk drive holding apparatus - A hard disk drive holding apparatus comprising a support, positioning pins, securing pins and swivel arms. The support comprises a supporting surface and side panels. The side panels have holes located thereon and are erected on the supporting surface. The positioning pins are located on the supporting surface to be inserted into the positioning holes on the bottom of the hard disk drive. The securing pins pass through the holes on the side panels and engage into the securing holes on the sides of the hard disk drive. The swivel arms are attached to the securing pins and pivotally connected on the support. | 07-02-2009 |