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Hung-I

Hung-I Chen, Kaohsiung City TW

Patent application numberDescriptionPublished
20100033144VOLTAGE REGULATORS - Voltage regulators are provided. In one embodiment of the voltage regulators, a differential amplifier receives a reference voltage and a feedback voltage, to generate a control signal according to a voltage difference between the feedback voltage and the reference voltage. An output transistor has a first terminal coupled to a power voltage, a control terminal coupled to the differential amplifier for receiving the control signal, and a second terminal coupled to an output terminal. A voltage feedback circuit is coupled between the output terminal and a ground voltage to generate the feedback voltage. A discharge transistor has a first terminal coupled to the ground voltage, a control terminal coupled to a first control signal, and a second terminal coupled to the output terminal through a first resistor in the voltage feedback circuit.02-11-2010
20100148867Audio Out Unit - A DC-coupled audio out unit is provided, including at least one regulator and at least one audio amplifier. The regulator is coupled to at least one power terminal of the audio amplifier.06-17-2010
20100181974VOLTAGE REGULATORS - An electronic circuit is provided. An error amplifier comprises a first input terminal coupled to a reference voltage, a second input terminal coupled to a feedback voltage, and a transistor comprises a first terminal coupled to an input voltage, a control terminal coupled to an output terminal of the error amplifier and a second terminal outputting an output voltage. A switching-capacitor circuit is coupled between the output voltage and the error amplifier and comprises a plurality of switching elements and at least first and second capacitors. The switching elements are switched by non-overlapping clocks such that the second capacitor is discharged to a bias voltage during a first period, and the first and second capacitors are connected together during a second period thereby extracting a division voltage from the output voltage to serve as the feedback voltage.07-22-2010

Patent applications by Hung-I Chen, Kaohsiung City TW

Hung-I Chen, Kao-Hsiung City TW

Patent application numberDescriptionPublished
20080265853LINEAR VOLTAGE REGULATING CIRCUIT WITH UNDERSHOOT MINIMIZATION AND METHOD THEREOF - A voltage regulating circuit for providing a regulated output voltage. The voltage regulating circuit includes a voltage regulator, a converting circuit, a capacitive device, a first current mirror module, and a second current mirror module. The voltage regulator has a first output producing the regulated output voltage and a second output producing a pass voltage. The converting circuit converts the pass voltage into a first current and a second current passing through a first converting node and a second converting node respectively, where the first current charges/discharges the capacitive device. The first current mirror module has a first current mirror path coupled to the first converting node and a second current mirror path coupled to the second converting node. The second current mirror module has a first current mirror path coupled to the second converting node and a second current mirror path coupled to the first output.10-30-2008

Hung-I Kuo, Hsinchu Hsien TW

Patent application numberDescriptionPublished
20100275427APPARATUS AND METHOD FOR ASSEMBLING LIQUID CRYSTAL DISPLAY - A method for assembling a liquid crystal display includes steps of disposing a liquid crystal panel and a backlight module and blowing an ionic flow into the space between the liquid crystal panel and the backlight module to clean the surfaces of them. In addition, the method can be proceeded by an apparatus for assembling the liquid crystal display. The apparatus comprises a fastening device, a hoist platform, and an ionic particle-removal device. The fastening device has several vacuum suckers used to attach the surface of a liquid crystal panel and the panel is held and fixed. The hoist platform is disposed vertically under the fastening device to carry a backlight module and thus to adjust the distance between the liquid crystal panel and the backlight module. The ionic particle-removal device, which is disposed at a lateral part of the hoist platform and the fastening device, is capable of blowing an ionic flow to remove the particles and electrostatic charges attached on the surface of the liquid crystal panel and the backlight module simultaneously during assembly.11-04-2010

Hung-I Lin, Tu-Cheng TW

Patent application numberDescriptionPublished
20120007727BRAKE WARNING DEVICE AND METHOD - A brake warning device and method includes acquiring acceleration data of a bicycle, and calculating a specific parameter according to the acceleration data acquired within a preset interval using a preset calculation method. The bicycle is determined to be decelerating if the specific parameter is less than a preset threshold value. A brake light of the brake warning device is turned on to warn that the bicycle is braking.01-12-2012