摘要:
A chip package carrier is disclosed, which includes a first circuit layer, a second circuit layer, a core layer, a third circuit layer, a first dielectric layer between the first and third circuit layers, a fourth conductive layer including at least a solder ball pad, a second dielectric layer between the second and fourth circuit layers and at least a capacitor device, wherein the core layer has at least a first through-hole; the third circuit layer is disposed above the first circuit layer and includes at least a die pad; the capacitor device is disposed in the first through-hole. The capacitor device herein includes a first pillar electrode covering the wall of the first through-hole, a cylindrical capacitor material disposed in the first pillar electrode and having a first blind hole, and a second pillar electrode disposed in the first blind hole and connected to the die pad.
摘要:
The present invention is directed to an apparatus that drives a lighting system with multiple lamps. A phase shift mechanism is produced either by a digital method, an analog method, or a mixture of the two methods. In a digital method, phase shifts are generated by digital circuits comprising counters, a divider, an adder, and a comparator. The digital circuits analyze the signal and use the necessary information to form a series of phased driving signals. In an analog method, phase shifts are generated by analog circuits comprising ramp waveform generators, comparators, and at least one shot generator. Also, an apparatus for driving a lighting system with multiple lamps can be realized by mixing the two methods mentioned above.
摘要:
An inverter has an inductor, a capacitor, a switching device, a driving circuit and a transformer. A first terminal of the capacitor is connected to the inductor, and the switching device is connected between the first terminal of the capacitor and a ground terminal. The driving circuit is connected to the switching device, wherein the driving circuit is arranged to control the switching device to turn on or turn off; and a primary side of the transformer is connected between a second terminal of the capacitor and the ground terminal.
摘要:
A digital language teaching system is disclosed, in which through an audio control manner, the learner, by utilizing a learning sub-machine, can focus on listening and speaking practice under a simple hardware control and operation, so that the teaching staff and the learner can have a more direct and faster interaction for improving learning efficiency. Moreover, through the output devices of the video device and teaching providing the learner the teaching image and the interactive teaching pictures, the video learning manner can be provided to the learner through the supplemental multimedia teaching materials, so that the teaching staff can teach the learners in accordance with their aptitudes, and the learner can find the most suitable learning method.
摘要:
This invention discloses a nano fluorinated water- and oil-water- and oil-repellent and process for producing the same. The nano fluorinated water- and oil-repellent, water- and oil-existing in the form of aqueous dispersant with particle size averaging less than 100 nm, water- and oil- has superior stability and could be applied in the treatment of various fiber products, leather and paper products.
摘要:
A (de)multiplexer for use in optical communications systems for multiplexing and demultiplexing an optical signal consisting of optical channel(s) of different wavelength(s) includes a multiplex optical waveguide propagating a plurality of optical channels and a plurality of single channel optical waveguides, each propagating a single channel. Each of the waveguides has a receiving/transmitting end. A diffraction grating is optically coupled between the multiplex optical waveguide and the single channel optical waveguides for diffracting an optical signal between the receiving/transmitting end of the multiplex optical waveguide and the receiving/transmitting end of the single channel optical waveguide. The grooves of the diffraction have spacing which varies according to an algorithm such that a portion of the optical signal diffracted by each groove is offset in a direction of dispersion relative to the portions of the optical signal diffracted by the other surfaces to broaden the transmission band at the receiving/transmitting ends of the single channel and multiplex optical waveguides. A method for fabricating a grating as described above includes etching grooves having spacing which varies according to the algorithm such that a portion of the optical signal diffracted by each surface is offset in a direction of dispersion relative to portions of the optical signal diffracted by each other surface.
摘要:
The disclosure provides a backlight module applied to a liquid crystal display device. The backlight module includes: a control circuit for outputting a driving signal according to an analog adjustment signal or a digital adjustment signal; a driving circuit for outputting a lamp voltage according to the driving signal; a fluorescent lamp set, including a plurality of lamps, for receiving the lamp voltage and thereby generating a lamp current; a lamp feedback circuit c for outputting a feedback signal according to the lamp voltage; and a dynamic protection circuit, for dynamically adjusting a protection command signal according to the analog dimming signal or the digital dimming signal, comparing the protection command signal and the feedback signal and thereby outputting a comparing result signal to the control circuit.
摘要:
The disclosure provides a backlight module applied to a liquid crystal display device. The backlight module includes: a control circuit for outputting a driving signal according to an analog adjustment signal or a digital adjustment signal; a driving circuit for outputting a lamp voltage according to the driving signal; a fluorescent lamp set, including a plurality of lamps, for receiving the lamp voltage and thereby generating a lamp current; a lamp feedback circuit c for outputting a feedback signal according to the lamp voltage; and a dynamic protection circuit, for dynamically adjusting a protection command signal according to the analog dimming signal or the digital dimming signal, comparing the protection command signal and the feedback signal and thereby outputting a comparing result signal to the control circuit.
摘要:
An exemplary hot-melting method includes the following steps. A hot-melting machine (20) is provided. The hot-melting machine includes a rotatable worktable (23), a heater (25), at least one cooler (26), and a plurality of carriers located on the worktable and being uniformly spaced apart. A first workpiece loaded on a first one of the carriers is cooled using the at least one cooler. Simultaneously, a second workpiece loaded on a second one of the carriers is heated using the heater.
摘要:
A power adjusting method for a pickup head accessing an optical disc. The method includes identifying a target data transfer rate utilized by the PUH for accessing the optical disc; calculating an appropriate laser power according to the target data transfer rate; and accessing the optical disc by the PUH at the target data transfer rate with the appropriate laser power.