Abstract: A control circuit of a power factor correction (PFC) converter is provided. The control circuit includes a pulse width modulation (PWM) circuit, an amplifier, a detection circuit., and a capacitor. The PWM circuit generates a switching signal in response to a loop signal. The amplifier is coupled to generate the loop signal in response to a switching current. The detection circuit generates a mode signal coupled to change output impedance of the amplifier. The capacitor is coupled to the amplifier for loop frequency compensation. The switching signal is coupled to switch an inductor of the PFC power converter and generate the switching current.

Abstract: A heat-dissipation structure for a motor. The heat-dissipation structure comprises a shaft, a seat and a rotator. The rotator coupled to the seat by the shaft comprises a housing and a cover. The housing comprises an inner side connected to the shaft and a bottom comprising at least one through hole. The cover is connected to an exterior of the bottom of the housing and a distance is formed between the cover and the housing, so that the cover prevents objects from entering the through hole.

Abstract: Apparatuses for fabricating micro patterns using a laser diode array and methods for fabricating micro patterns are presented. The apparatus includes a laser diode array having at least one laser diode wherein light emitted from each laser diode is focused by a convex lens onto a second material layer attached to a first material layer. At least one driving shaft drives motion of the first and the second material layers. An adjustment means is used for adjusting the gap and pitch between adjacent laser diodes.

Abstract: A heat exchanger is provided. The heat exchanger includes a heat dissipation module, an inner heat-dissipating device and an outer heat-dissipating device. The heat dissipation module includes a body, a plurality of first inlets, a plurality of first outlets, a plurality of second inlets, a plurality of second outlets, a plurality of first flow paths and a plurality of second flow paths, wherein the first flow paths are staggered with the second flow paths, and the first inlets and the first outlets are communicated with the first flow paths, the second inlets and the second outlets are communicated with the second flow paths, the body includes a first surface and a second surface opposite to the first surface, the first inlets and the first outlets are formed on the first surface, and the second inlets and the second outlets are formed on the second surface.

Abstract: An air-cooled heat exchanger includes a casing, a first heat-exchanging core, a second heat-exchanging core, a first internal driving device, a second internal driving device and an external driving device. The first internal driving device is used for driving a first internally-circulated airflow to flow along a first internal circulation path. The second internal driving device is used for driving a second internally-circulated airflow to flow along a second internal circulation path. The external driving device is used for driving a first externally-circulated airflow to flow along a first external circulation path and driving a second externally-circulated airflow to flow along a second external circulation path. The first heat-exchanging core is configured to perform heat exchange between the first internally-circulated airflow and the first externally-circulated airflow.

Abstract: The present invention provides a correction circuit for a power converter. The correction circuit includes a sampling circuit, a demagnetizing-time circuit, a duty circuit, and a compensation circuit. The sampling circuit generates an average-current signal in response to a switching current of the power converter. The demagnetizing-time circuit generates a discharging-time signal in response to a switching signal and an input-voltage signal. The duty circuit generates a duty signal in response to the discharging-time signal, an on-time of the switching signal, and a switching period of the switching signal. The compensation circuit is coupled to receive the average-current signal and the duty signal for generating a corrected signal. The switching signal is utilized to switch a magnetic device for regulating an output voltage of the power converter. The corrected signal is coupled to generate the switching signal.

Abstract: Systems for thermal patterning are presented. The system includes a thermal print head module. The thermal print head module includes at least one point heater. An elastic adjustable device is used for adjusting the flatness of the thermal print head module. A rotation adjustable device is used for controlling the thermal print head module to rotate with a predetermined angle.

Abstract: An apparatus for fabricating patterns using a laser diode is presented. The apparatus includes at least one laser diode, at least one lens and a mask having at least one pin hole, wherein light emitted from the laser diode is emitted through the lens and the pin hole to be focused on a first material layer.

Abstract: A motor comprises a base, a rotor, a stator, and a circuit board. The base includes a sleeve. The stator includes at least one fastener. The sleeve has an inclined outer surface. The fastener extends to the circuit board and abuts the inclined outer surface to fasten the circuit board. A fan comprises a base, a hub, a shaft, a circuit board. The base has a sleeve. The hub comprises a plurality of blades disposed outwardly thereof. The shaft connects to the sleeve and is disposed in the hub. The stator has at least one fastener. The sleeve has an inclined outer surface. The fastener extends to the circuit board and abuts against the inclined outer surface to fasten the circuit board.

Abstract: Apparatuses for fabricating micro patterns using a laser diode array and methods for fabricating micro patterns are presented. The apparatus includes a laser diode array having at least one laser diode wherein light emitted from each laser diode is focused by a convex lens onto a second material layer attached to a first material layer. At least one driving shaft drives motion of the first and the second material layers. An adjustment means is used for adjusting the gap and pitch between adjacent laser diodes.

Abstract: A wire-fixing element is coupled into an opening of a base. A wire passes through the opening, and one part of the wire is disposed in the base. The wire-fixing element includes a first end and a second end. A pair of arms is disposed at the first end and the arms are buckled into the opening. A supporting member is disposed at the second end and is used for supporting the wire.

Abstract: A heat-dissipation structure for a motor. The heat-dissipation structure comprises a shaft, a seat and a rotator. The rotator coupled to the seat by the shaft comprises a housing and a cover. The housing comprises an inner side connected to the shaft and a bottom comprising at least one through hole. The cover is connected to an exterior of the bottom of the housing and a distance is formed between the cover and the housing, so that the cover prevents objects from entering the through hole.

Abstract: Systems for thermal patterning are presented. The system includes a thermal print head module. The thermal print head module includes at least one point heater. An elastic adjustable device is used for adjusting the flatness of the thermal print head module. A rotation adjustable device is used for controlling the thermal print head module to rotate with a predetermined angle.

Abstract: A stator structure includes a first cover, a stator assembly and a filler. The first cover has an accommodation space for accommodating the stator assembly therein. The filler is applied between the first cover and the stator assembly to surround the stator assembly. A manufacturing method of the stator structure is also disclosed.

Abstract: Fabrication methods for patterned structures are presented. A layer of material is provided and a patterned region and a non-patterned region are formed using a multiple thermal writing head, wherein the patterned region and the non-patterned region have different physical properties. Alternatively, the layer of material is formed on a substrate. After the layer of material is transferred into the patterned and non-patterned regions, the non-patterned region is removed.

Abstract: An integrated tuner includes circuitry to receive a television signal, a quadrature mixer coupled to the output of the circuitry, a polyphase filter coupled to the output of the quadrature mixer, a relaxation oscillator, and a digital calibration module. The relaxation oscillator generates a clock having a period that is directly proportional to the on-chip RC time constant. The clock is fed into a counter of the digital calibration module. The counter is started and stopped at predefined time intervals by a finite state machine. The finite state machine updates the calibration code based on a successive approximation algorithm according to the end count results received from the counter. The digital calibration module outputs the updated calibration code to the polyphase filter and to the relaxation oscillator.

Abstract: A substrate transportation device includes a housing for transporting substrates. The housing is formed of an upper surface, a lower surface, and opposing sidewalls. The housing has a rear opening through which the substrates enter the housing and a front opening through which the substrates exit the housing. A plurality of hollow supporting members are disposed within the housing and affixed to the opposing sidewalls which are formed by a plurality of columns. The hollow supporting members have a plurality of apertures in an upper surface for supplying a medium to a lower surface of the plurality of substrates. A medium supply member transfers the medium toward the hollow supporting member. The medium transferred by the medium supply member is delivered through the apertures in the upper surface of the plurality of hollow supporting members to float the substrates on a cushion of air.

Abstract: A heat dissipation device and fan module. The fan module is fixed to a fan tray, which has a track with a first engaging portion. A securing member is disposed on a shield, comprising a second engaging portion. The second engaging portion enters the first engaging portion, fixing the fan module to the fan tray. An actuator connects the securing member and the shield. When external force deforms the actuator, the securing member deforms therewith, withdrawing the second engaging portion from the first engaging portion.

Abstract: A fan and a rotor structure thereof. The rotor structure has a case, an upper linking structure, a lower structure, and a rotating shaft. The case has an opening at the axle center. The upper linking structure has a fixing portion and a threaded portion. The minimum radius of the fixing portion is longer than the radius of the opening. The threaded portion is disposed in the opening. The lower linking structure has a thread corresponding to the threaded portion. The upper linking structure and the lower linking structure is screwed together to secure the case therebetween. The rotating shaft is fixed in the upper linking structure or the lower linking structure.

Abstract: A motor comprises a base, a rotor, a stator, and a circuit board. The base includes a sleeve. The stator includes at least one fastener. The sleeve has an inclined outer surface. The fastener extends to the circuit board and abuts the inclined outer surface to fasten the circuit board. A fan comprises a base, a hub, a shaft, a circuit board. The base has a sleeve. The hub comprises a plurality of blades disposed outwardly thereof. The shaft connects to the sleeve and is disposed in the hub. The stator has at least one fastener. The sleeve has an inclined outer surface. The fastener extends to the circuit board and abuts against the inclined outer surface to fasten the circuit board.