Abstract: An inductor includes a coil, a conductive lead frame, and a housing. The coil includes a coil body and a lead protruding from the coil body. The lead has a U-bend portion. The lead is electrically fixed onto the conductive lead frame. The housing encapsulates the coil and exposes the conductive lead frame. A method of manufacturing an inductor includes the following steps: providing a coil, providing a conductive lead frame, making a lead of the coil be electrically fixed onto the conductive lead frame, bending the lead to form a U-bend portion and make the main body of the coil close to a portion of the lead that connects with the conductive lead frame, and forming a housing to encapsulate the coil and expose the conductive lead frame.

Abstract: An integrated-type coupled inductor is applied to a related manufacturing method and includes a lead frame, a first coil, a second coil and a magnetic packing component. The lead frame has a first surface and a second surface opposite to each other and includes four pins. The first coil is disposed on the first surface and coupled to two of the four pins. The second coil is disposed on the second surface and coupled to other pins. The magnetic packing component covers the first coil and the second coil to expose parts of the four pins.

Abstract: A controller applied to a primary side of an inductor-inductor-capacitor (LLC) resonant converter includes a common-mode voltage generation circuit and a control signal generation circuit. The common-mode voltage generation circuit is used for generating a common-mode voltage. The control signal generation circuit is used for generating an upper bridge switch control signal and a lower bridge switch control signal according to a compensation voltage corresponding to an output voltage of the LLC resonant converter, a sensing voltage corresponding to an input voltage of the LLC resonant converter, and the common-mode voltage, wherein the upper bridge switch control signal and the lower bridge switch control signal control an upper bridge switch and a lower bridge switch of the primary side of the LLC resonant converter, respectively.

Abstract: An inductor device and a method of fabricating the same. The inductor device according to the invention includes a conductive coil, a pillar and a cladding body. The pillar is molded from a plurality of first composite material powders by a pressing process. Each first composite material powder is composed of a first magnetic material powder coated with a first thermosetting resin. The cladding body is molded from a plurality of second composite powders. Each second composite material powders is composed of a second magnetic material powder coated with a second thermosetting resin. The first weight ratio of the first thermosetting resin to the first composite material powders is less than the second weight ratio of the second thermosetting resin to the second composite material powders. The cladding body and the conductive coil and the pillar cladded by the cladding body are heated to a curing temperature.

Abstract: A control method is provided for operating a power converter with a power switch and an inductive device. A current-sense signal is provided to represent an inductor current through the inductive device. An ON time of the power switch is determined in response to a feedback signal and a saw-wave signal, to operate the power converter in a non-power-saving mode. The feedback signal is generated according to an output voltage of the power converter. The power converter can be operated in a power-saving mode, a burst mode. Operating in the burst mode, the ON time is determined in response to the current-sense signal and a current-limiting signal, which is increased during a soft burst-in time and is decreased during a soft burst-out time.

Abstract: A control method is disclosed to prevent false triggering of over-current protection. A power converter comprises high-side and low-side switches connected in series between an input power line and a ground line, for driving a resonant circuit to resonate. The power converter includes a detector detecting the resonant circuit to provide a detection signal representing a magnitude of resonance in the resonant circuit. A duty cycle of one of the high-side and low-side switches is detected, and a threshold is determined in response to the duty cycle. An over-current protection is triggered based on the threshold and the detection signal. When the over-current protection is triggered, at least one of the high-side and low-side switches stops providing power to the resonant circuit, and the resonance subsides.

Abstract: A method of fabricating an inductor device includes preparing a conductive coil, connecting two terminals to one of two ends of the conductive coil, molding a pillar from a plurality of first composite material powders by a pressing process where each first composite material powder is composed of a first magnetic material powder coated with a first thermosetting resin, placing the pillar in a surrounding space formed by the conductive coil, molding a cladding body from a plurality of second composite powders where the second composite material powders is composed of a second magnetic material powder coated with a second thermosetting resin, heating the cladding body, the conductive coil and the pillar cladded by the cladding body such that the plurality of first magnetic material powders are bonded by the cured first thermosetting resin and the plurality of second magnetic material powders are bonded by the cured second thermosetting resin.

Abstract: A power controller for an LLC resonant converter controls a high-side switch and a low-side switch. An ON-time generator in the power controller determines a high-side ON time of the high-side switch and a low-side ON time of the low-side switch in response to the bigger one between a feedback voltage and a burst voltage, where the feedback voltage is generated in response to an output voltage of the LLC resonant converter. A burst-mode controller in the power controller has a triangular-wave generator providing a triangular-wave signal with an amplitude in association with the burst voltage. A comparator comparing the triangular-wave signal and the feedback voltage to determine a break time when both the high-side and low-side switches are turned OFF. The LLC resonant converter operates in a burst mode when the break time is introduced.

Abstract: Asymmetric power converter includes an upper bridge switch, a lower bridge switch, a primary winding, a first secondary winding, a second secondary winding, a control circuit. The first secondary winding and the second secondary winding output a first output voltage and a second output voltage of a secondary side of the asymmetric power converter respectively, and voltage polarity of the first secondary winding is different from voltage polarity of the second secondary winding. The control circuit controls the lower bridge switch and the upper bridge switch according to the first output voltage and the second output voltage, respectively.

Abstract: A controller applied to a primary side of an inductor-inductor-capacitor (LLC) resonant converter includes a common-mode voltage generation circuit and a control signal generation circuit. The common-mode voltage generation circuit is used for generating a common-mode voltage. The control signal generation circuit is used for generating an upper bridge switch control signal and a lower bridge switch control signal according to a compensation voltage corresponding to an output voltage of the LLC resonant converter, a sensing voltage corresponding to an input voltage of the LLC resonant converter, and the common-mode voltage, wherein the upper bridge switch control signal and the lower bridge switch control signal control an upper bridge switch and a lower bridge switch of the primary side of the LLC resonant converter, respectively.

Abstract: A slide rail mechanism includes a rail, a movable member, a buffer member, and an elastic member. The movable member can be displaced with respect to the rail. The buffer member is provided on one of the rail and the movable member and can produce a buffering effect in response to the movable member being displaced in a certain direction. The rail includes a longitudinal wall and a supporting portion connected to the longitudinal wall. The longitudinal wall and the supporting portion jointly define a supporting path.

Abstract: A nano-twinned copper layer is disclosed, wherein over 50% of a volume of the nano-twinned copper layer comprises a plurality of columnar crystal grains, the plurality of columnar crystal grains connect to each other, at least 70% of the plurality of columnar crystal grains are formed by a plurality of nano-twins stacking in an orientation of a crystal axis, and an angle included between two adjacent columnar crystal grains is greater 20° and less than or equal to 60°. In addition, a method for manufacturing the nano-twinned copper layer and a substrate comprising the same are also disclosed.

Abstract: A PFC circuit uses a single multifunctional node to detect an inductor current when a power switch is turned ON and a zero-current moment when the power switch is turned OFF. The power switch has a drain connected to an inductor, a source connected to a current-sense resistor, and a gate controlled by a PFC controller with the multifunctional node. A signal-integration circuit is electrically coupled between the drain and the source, to provide a multifunctional signal at the multifunctional node. The PFC controller comprises a first comparator and a zero-current detector. The first comparator compares the multifunctional signal with a first reference signal when the PFC controller turns ON the power switch, to provide over-current protection. The zero-current detector decides, in response to the multifunctional signal when the PFC controller turns OFF the power switch, a zero-current moment when an inductor current flowing through the inductor is about zero.

Abstract: Asymmetric power converter includes an upper bridge switch, a lower bridge switch, a primary winding, a first secondary winding, a second secondary winding, a control circuit. The first secondary winding and the second secondary winding output a first output voltage and a second output voltage of a secondary side of the asymmetric power converter respectively, and voltage polarity of the first secondary winding is different from voltage polarity of the second secondary winding. The control circuit controls the lower bridge switch and the upper bridge switch according to the first output voltage and the second output voltage, respectively.

Abstract: A power controller for an LLC resonant converter controls a high-side switch and a low-side switch. An ON-time generator in the power controller determines a high-side ON time of the high-side switch and a low-side ON time of the low-side switch in response to the bigger one between a feedback voltage and a burst voltage, where the feedback voltage is generated in response to an output voltage of the LLC resonant converter. A burst-mode controller in the power controller has a triangular-wave generator providing a triangular-wave signal with an amplitude in association with the burst voltage. A comparator comparing the triangular-wave signal and the feedback voltage to determine a break time when both the high-side and low-side switches are turned OFF. The LLC resonant converter operates in a burst mode when the break time is introduced.

Abstract: A slide rail mechanism includes a rail, a movable member, a buffer member, and an elastic member. The movable member can be displaced with respect to the rail. The buffer member is provided on one of the rail and the movable member and can produce a buffering effect in response to the movable member being displaced in a certain direction. The rail includes a longitudinal wall and a supporting portion connected to the longitudinal wall. The longitudinal wall and the supporting portion jointly define a supporting path.

Abstract: A nano-twinned copper layer is disclosed, wherein over 50% of a volume of the nano-twinned copper layer comprises a plurality of columnar crystal grains, the plurality of columnar crystal grains connect to each other, at least 70% of the plurality of columnar crystal grains are formed by a plurality of nano-twins stacking in an orientation of a [111] crystal axis, and an angle included between two adjacent columnar crystal grains is greater 20° and less than or equal to 60°. In addition, a method for manufacturing the nano-twinned copper layer and a substrate comprising the same are also disclosed.

Abstract: A power controller for use in a PFC power converter is capable being immune from audible noise during the test of load transient response. A transconductor with a transconductance compares an output voltage of the PFC power converter with a target voltage to provide a compensation current, which builds up a compensation voltage. An ON-time controller is configured to end an ON time of a power switch in response to the compensation voltage. An OFF-time controller is configured to end an OFF time of the power switch. A compensation-voltage designator presets the compensation voltage. A status detector controls the transconductor, the ON-time controller, the OFF-time controller, and the compensation-voltage designator, in response to the output voltage, a top-boundary voltage and a bottom-boundary voltage.

Abstract: An inductor device and a method of fabricating the same. The inductor device according to the invention includes a conductive coil, a pillar and a cladding body. The pillar is molded from a plurality of first composite material powders by a pressing process. Each first composite material powder is composed of a first magnetic material powder coated with a first thermosetting resin. The cladding body is molded from a plurality of second composite powders. Each second composite material powders is composed of a second magnetic material powder coated with a second thermosetting resin. The first weight ratio of the first thermosetting resin to the first composite material powders is less than the second weight ratio of the second thermosetting resin to the second composite material powders. The cladding body and the conductive coil and the pillar cladded by the cladding body are heated to a curing temperature.

Abstract: A transmitting/receiving command method applied between a master controller and a slave controller of a power converter includes enabling the master controller and the slave controller; a controller of the master controller and the slave controller detecting a node voltage of a pin of the controller; the controller transmitting a first command of a plurality of first commands to another controller of the master controller and the slave controller through the pin when the node voltage is less than a predetermined voltage, wherein the predetermined voltage corresponds to over temperature protection of the power converter; and the controller detecting the node voltage again after the controller receives a first return signal transmitted by the another controller.