Abstract: The present invention discloses a buck switching regulator with improved mode transition, and a method for controlling a buck switching regulator. The method comprises: providing a switching regulator including: an output power stage for converting an input voltage to an output voltage, the output power stage being controlled by a first PWM signal during a fixed-frequency PWM mode (FPWM mode), and being controlled by a first voltage signal during a pulse skipping mode (PSK mode), wherein the first PWM signal is generated according to the first voltage signal; and in a transition from the PSK mode to the FPWM mode, proving a second voltage signal as a starting point of the first voltage signal, the second voltage signal being substantially close to a target of the first voltage signal in the FPWM mode.

Abstract: A method for producing a silicon substrate for solar cells is provided. The method includes performing a saw damage removal (SDR) and surface macro-texturing on a silicon substrate with acids solution, so that a surface of the silicon substrate becomes an irregular surface. Thereafter, a metal-activated selective oxidation is performed on the irregular surface with an aqueous solution containing an oxidant and a metal salt, in which the oxidant is one selected from persulfate ion, permanganate ion, bichromate ion, and a mixture thereof. Afterwards, the irregular surface is etched with an aqueous solution containing HF and H2O2 so as to form a nano-texturized silicon substrate.

Abstract: Disclosed is a method for making carrier-free radioactive isotopic gallium-67. Stable isotopic zinc-68 is turned into zinc-68 solid target by disposition or electroplating. Then, the zinc-68 solid target is subjected to a proton beam. A cyclotron is used to provide irradiation from 15 to 40 MeV. After the irradiation, the zinc-68 solid target is dissolved in concentrated acid and turned into solution that contains zinc-65, zinc-68, gallium-67 and gallium-68. High concentrated hydrochloric acid and resin are added into the solution for exchange of ions. Zinc-68 liquid and gallium-67 liquid are filtered and separated from the solution. Thus, pure gallium-67 liquid is produced. With a vaporizer, the gallium-67 liquid is vaporized and turned into radioactive isotopic gallium-67.

Abstract: A power detecting device, a power supply device using the same, and a reference voltage generator are provided. The power detecting device adapted to detect a power voltage of a display device includes a bandgap voltage generating circuit, a voltage regulating circuit, and a power-on reset circuit. The bandgap voltage generating circuit provides a reference voltage via an output terminal thereof. The voltage regulating circuit and the power-on reset circuit are coupled to the output terminal of the bandgap voltage generating circuit. When the power voltage doesn't reach a threshold voltage, the voltage regulating circuit increases the reference voltage referred by the power-on reset circuit. When the power voltage reaches the reference voltage, the power-on reset circuit generates a reset signal to reset the display device. Therefore, when the power voltage doesn't reach a stable, the power-on reset circuit will not be incorrectly started by increasing the reference voltage.

Abstract: A method of fabricating a solar cell is provided. A saw damage removal process is performed on a silicon substrate. A dry surface treatment is performed to a surface of the silicon substrate on form an irregular surface. A metal-activated selective oxidation is performed to the irregular surface. By using an aqueous solution, the irregular surface is etched to form a nanotexturized surface of the silicon substrate. A dopant diffusion process is performed on the silicon substrate to form a P-N junction. An anti-reflection layer is formed on the silicon substrate. An electrode is formed on the silicon substrate.

Abstract: A method for depositing a microcrystalline silicon film is disclosed, including performing an open loop and close loop plasma enhanced deposition process without and with modulating process parameters, respectively. A film is deposited by the open loop plasma enhanced deposition process till a required film crystallinity and then performing a closed loop plasma enhanced deposition process which monitors species plasma spectrum intensities SiH* and H? and modulates process parameters of the plasma enhanced deposition process resulting in the species concentration stabilization which controls the intensities variation of SiH* and H? within an allowed range of a target value for improving film depositing rate.

Abstract: A circuit and method are proposed for constant on-time control for an interleaved multiphase voltage regulator, which monitor the channel currents of all the channels of the interleaved multiphase voltage regulator to select one from the channels to drive and so achieve interleaved phase operation.

Abstract: Disclosed is a device for separating radioisotope thallium-201. The device includes an evaporation unit for a solution vial, a first glass vial connected to a first valve and a second valve, an ion exchange column connected to a third valve, a second glass vial connected to a fourth valve and a fifth valve, a collection vial for receiving solution from the fifth valve, a product vial with a membrane filter and a vacuum unit connected to the first valve, the fourth valve and a sixth valve. This device can separate out high-concentration thallium-201 solution from which radioisotope thallium-201 can be obtained.

Abstract: An output ripple control circuit and method for a PWM system uses a hysteresis threshold to clamp the output ripple of the PWM system such that the output ripple will not vary with the dc level of the output voltage, and therefore the output ripple control may be combined into any main loop technologies.

Abstract: A source driver adaptive to driving a plurality of data lines on a display panel is provided herein. The source driver includes a plurality of channels and an output switch. The channels generate driving voltages to drive the display panel. The output switch includes a plurality of output multiplexers, so as to selectively connect the channels to data lines of the display. Each of the output multiplexers connects at least one of the channels to one of the data lines while being activated, wherein the output multiplexers are sequentially activated within a frame period. The source driver utilizes the output switch to sequentially delay a control signal, for controlling the output multiplexers to be sequentially activated within the frame period. Therefore, an electromagnetic interference can be reduced for ensuring the source driver operates normally.

Abstract: A power detecting device, a power supply device using the same, and a reference voltage generator are provided. The power detecting device adapted to detect a power voltage of a display device includes a bandgap voltage generating circuit, a voltage regulating circuit, and a power-on reset circuit. The bandgap voltage generating circuit provides a reference voltage via an output terminal thereof. The voltage regulating circuit and the power-on reset circuit are coupled to the output terminal of the bandgap voltage generating circuit. When the power voltage doesn't reach a threshold voltage, the voltage regulating circuit increases the reference voltage referred by the power-on reset circuit. When the power voltage reaches the reference voltage, the power-on reset circuit generates a reset signal to reset the display device. Therefore, when the power voltage doesn't reach a stable, the power-on reset circuit will not be incorrectly started by increasing the reference voltage.

Abstract: A variety of solar module package structures is obtained by disposing an optical sheet on the top surface of the solar module and/or between the glass plate and the solar cell. Through the optical sheet with surface configurations, anti-reflection and light trapping capability of the solar module package structure is improved and the power output is increased.

Abstract: The subject matter is a voltage regulator capable of providing an indicator signal to a load, so that the load can operation under the best current-voltage relationship according to the indicator signal. To this end, the voltage regulator includes an amplifier for generating the indicator signal by amplifying a difference between a signal representative of an output voltage and a signal representative of a reference voltage.

Abstract: A source driver includes an amplifier, and the amplifier includes an input stage, an output stage, a first current source, a second current source, a third current source, and a switch module. The first current source is utilized to provide a first bias current to the input stage, the second current source is utilized to provide a second bias current to the output stage, and the third current source is utilized to provide a third bias current. The switch module is utilized for selectively connecting the third current source to the input stage or the output stage.

Abstract: An output ripple control circuit and method for a PWM system uses a hysteresis threshold to clamp the output ripple of the PWM system such that the output ripple will not vary with the dc level of the output voltage, and therefore the output ripple control may be combined into any main loop technologies.

Abstract: A source driver and a driving method thereof are provided. The source driver is adapted to a display panel. The source driver includes an output buffer and a regulating unit. The output buffer has an input terminal and an output terminal. The input terminal of the output buffer receives a pixel signal. The output terminal of the output buffer is coupled to the display panel for outputting an output signal. The regulating unit is coupled to the output terminal of the output buffer, for providing a charging current or a discharging current to the output terminal of the output buffer according to a polarity of the pixel signal. Thereby, a slew rate of the output signal is increased.

Abstract: An output buffer and a source driver using the same are provided. The output buffer includes an input stage module, a first output stage module, a second output stage module, and a first control module. The input stage module generates a first bias signal via a first connection terminal according to a driving signal and a output signal. The first output stage module generates the output signal in response to the first bias signal via an output terminal of the output buffer. The second output stage module generates a second bias signal in response to the first bias signal via a second connection terminal, and controls a first switch in the second output stage module. The first control module selectively connects a first current source to the output terminal of the output buffer or to the second connection terminal of the second output stage module according to an indication signal.

Abstract: A source driver adapted to drive a plurality of data lines on a display panel is disclosed. The source driver includes a first output buffer, a second output buffer, a multiplexer, and a first regulating unit. The first and the second output buffers respectively enhance transmission intensities of a first and a second pixel signals. The first regulating unit regulates a slew rate of the first pixel signal outputted from the first output buffer to match a slew rate of the second pixel signal outputted from the second output buffer. The multiplexer coupled to the regulating unit selectively transmits the first and the second pixel signals to one of the odd data lines and one of the even data line, or to the one of the even data lines or the one of the odd data lines, according to a control signal.

Abstract: A long linear-type microwave plasma source using a variably-reduced-height rectangular waveguide as the plasma reactor has been developed. Microwave power is fed from the both sides of the waveguide and is coupled into plasma through a long slot cut on the broad side of the waveguide. The reduced height of the waveguide is variable in order to control the coupling between microwave and plasma so that the plasma uniformity can remain a high quality when extending the length of the linear-type plasma source.

Abstract: A display includes a panel, a timing controller, and a source driver. A method for driving the display includes the steps of sending a transfer signal asserted for a first period to the source driver initially at a line period; sending a driving control signal asserted for an asserted period to the source driver by the timing controller initially at a line period, utilizing a large driving capability of the source driver to drive the panel during the asserted period within the line period, and utilizing a small driving capability of the source driver to drive the panel beyond the asserted period within the line period.