Abstract: A power conversion system for controlling harmonics, which uses the Fourier transform analysis to calculate the harmonics element of each current, and adds the harmonics compensation strategy into the control strategy of the DC-AC power converter so as to decrease the harmonics element generated from the actual current.

Abstract: A coupling device includes a plurality of frames, each of which includes a base wall, and two spaced-apart side walls that cooperate with the base wall to define an accommodation space. The frames are arranged such that the accommodation spaces of the frames communicate with each other. At least one coupling unit is disposed in the accommodation spaces of two adjacent ones of the frames and applies a force to the side walls of the two adjacent ones of the frames so as to couple together the two adjacent ones of the frames.

Abstract: A lamp device includes a heat dissipating seat, a light emitting unit, a mounting seat and a light guide plate. The heat dissipating seat defines an accommodation space with an opening. The light emitting unit is fixed to the heat dissipating seat within the accommodation space. The mounting seat is disposed in the accommodation space through the opening, and covers the light emitting unit. A receiving space is defined by at least a portion of the mounting seat and extends in a direction away from the light emitting unit. The light guide plate has at least a portion inserted into and fixed within the receiving space.

Abstract: A lighting system includes a carrier unit, and a lamp holder including a holder plate for mounting of a light emitting unit, and a first positioning plate and a second positioning plate extending from the holder plate and spaced apart from each other. The holder plate is disposable at a first or second position when the first or second positioning plate is connected to the carrier unit. A light emitting characteristic of the light emitting unit when the holder plate is in the first position is different from a light emitting characteristic of the light emitting unit when the holder plate is in the second position.

Abstract: A power monitor and management system includes an automatic modulation device, a monitoring device, multiple modules and an LAN (local area network) connected to the monitoring device and the modules to enable the monitoring device to communicate with the modules. The automatic modulation device determines a dominating module in according to registration sequences of the modules and subordinating modules and to modulate power of the dominating module and the subordinating modules as well as the overall power output in accordance with number of the modules.

Abstract: A microelectronic 3D packaging structure and a method of manufacturing the same are introduced. The microelectronic 3D packaging structure includes a first board with a plurality of a first edges and disposed with a first electronic device; a second board with a plurality of a second edges and disposed with a second electronic device, wherein at least one second edge of the second board is jointed to at least one first edge of the first board to form a joint line; and a joint connection portion disposed at the joint line of the two adjacent boards and adapted to function as a connection path for transmitting signals.

Abstract: A lighting device includes a rotating unit, a clutching unit releasably engaging the rotating unit, and a lighting unit connected to the rotating unit. The clutching unit is operable to move between a first position, where the clutching unit engages the rotating unit to limit rotation thereof, and a second position, where the clutching unit disengages the rotating unit to permit free rotation thereof. The lighting unit is adjustable to a desired illumination angle when the clutching unit is in the second position. The clutching unit is moved from the second position to the first position to position the lighting unit at the desired illumination angle.

Abstract: A lamp includes a heat-dissipating unit, a light source and a light guide unit. The heat-dissipating unit is formed with at least one heat-dissipating channel that has opposite open ends. The light source is disposed on the heat-dissipating unit. The light guide unit is disposed in front of the light source for guiding light that is emitted from the light source, and is formed with a vent hole that has opposite open ends in spatial communication with the heat-dissipating channel.

Abstract: A lamp includes a frame, a light source, a light guide unit and a decorative unit. The light source is disposed on the frame. The light guide unit has a light-incident surface and a light-emitting surface. The light-incident surface faces towards the light source, and light emitted from the light source enters the light guide unit from the light-incident surface and is emitted out from the light-emitting surface to form a light plane. The decorative unit is detachably disposed on a position different from the light plane.

Abstract: A lamp includes a base, a light emitting module mounted to the base, a lens member and a decorating unit. The lens member has a light input surface, a light output surface disposed in front of and spaced apart from the light input surface along an axis, and a through hole extending through the light input surface and the light output surface. Light emitted from the light emitting module enters the lens member through the light input surface and exits the lens member through the light output surface. The decorating unit is detachable and is optically disposed for decorating the lamp or for changing at least one of a wavelength, an output angle, a light field and so forth of the light passing through the lens member.

Abstract: A microelectronic 3D packaging structure and a method of manufacturing the same are introduced. The microelectronic 3D packaging structure includes a first board with a plurality of a first edges and disposed with a first electronic device; a second board with a plurality of a second edges and disposed with a second electronic device, wherein at least one second edge of the second board is jointed to at least one first edge of the first board to form a joint line; and a joint connection portion disposed at the joint line of the two adjacent boards and adapted to function as a connection path for transmitting signals.

Abstract: A power conversion system for controlling harmonics, which uses the Fourier transform analysis to calculate the harmonics element of each current, and adds the harmonicscompensation strategy into the control strategy of the DC-AC power converter so as to decrease the harmonics element generated from the actual current.

Abstract: A motor simulator without requiring a motor is a testing motor controller used for inputting a driving signal according to a power supply driving signal, feeding back a status response of a dynamic calculator of the motor simulator, outputting a voltage and current reference command value required by the motor simulator to the motor simulator, so that the dynamic calculator and the electric power converter installed in the motor simulator generate a voltage and a current of an actual motor in an operating status. Therefore, the testing motor controller keeps converting and adjusting the electric energy for driving an operation of the motor simulator according to a status response fed back by the dynamic calculator of the motor simulator, so as to achieve a control function of the testing motor controller for testing the rotation speed and positioning of the motor.

Abstract: A zero sequence current control apparatus and a zero sequence current control method for parallel power converters are disclosed to overcome the issue of having uniform output power for the parallel operation of a plurality of single module voltage control power converters, and an eCAN BUS acts as a communication interface for transmitting instructions, so that when each of the single module voltage control power converters is operated in the parallel operation, the effect of outputting uniform voltage, current and power can be achieved.

Abstract: A lighting system, which is composed of a redundant power supply and at least one luminaire with a lamp control module contained therein. The lamp control module includes at least one light source and a light control module. The light control module includes a current control unit, at least one switch unit, and a processing unit. The current control unit is to control the DC current. The switch unit is electrically connected to the light source and enables the DC current source to selectively control DC current to at least one light source. The processing unit is used to adjust value of DC current. The luminaire includes the lamp control module, housing and power lines. The redundant power supply contains at least one AC-to-DC converter module, and the redundant power supply provides constant DC power to at least one light control module of the luminaire.

Abstract: The present invention relates to an LED luminaire driving circuit with high power factor, comprising: a filter unit, a rectifier unit, a transformer unit, a power switch unit, a zero current detecting unit, a feedback unit, an error amplifier unit, and a power switch driving unit. Particularly, the LED luminaire driving circuit proposed by the present invention does not include any optocoupler feedback circuits, so it is able to effectively reduce the entire circuit manufacturing cost of this LED luminaire driving circuit. Moreover, this LED luminaire driving circuit can selectively work under CCM operation or DCM operation with high power factor (PF˜1), and provide stable output voltage signal and output current signal to load end. In addition, this LED luminaire driving circuit performs excellent stability and current modulation error rate (<±3%).

Abstract: A lighting system includes a carrier unit, and a lamp holder including a holder plate for mounting of a light emitting unit, and a first positioning plate and a second positioning plate extending from the holder plate and spaced apart from each other. The holder plate is disposable at a first or second position when the first or second positioning plate is connected to the carrier unit. A light emitting characteristic of the light emitting unit when the holder plate is in the first position is different from a light emitting characteristic of the light emitting unit when the holder plate is in the second position.

Abstract: The present invention relates to a voltage converting circuit of active-clamping zero voltage switch, consisting of a transformed unit, a primary-side input unit, a second-side output unit, and a first switch, wherein the primary-side input unit has a clamping capacitor and a second switch, which are used for avoid from the production of spike voltage on the first switch when the first switch is turned off, so as to increase the voltage conversion efficiency of the voltage converting circuit.

Abstract: The present invention relates to a secondary side serial resonant full-bridge DC/DC converter, comprising: a transistor full-bridge unit, a transformer unit, a resonant unit, a rectifying unit, and an output unit. Particularly, in the present invention, a resonant inductor and a resonant capacitor of the resonant unit and a load resistor of the output unit constitute a serial resonant circuit having a serial resonant frequency; therefore, when the circuit frequency is operated on the serial resonant frequency, the resonant inductor impedance would be offset by the resonant capacitor impedance, such that the circuit is operated in the zero current switch (ZCS) region, and the output voltage variation can be controlled in ±0.2%. Moreover, through the serial resonant circuit, the issue about the resonant components hard to be designed due to their small characteristic impedance can simultaneously be improved.