Abstract: A power converter having a multi-mode switching mechanism is provided. The power converter includes a first switch, a second switch, a low-side switch, an output calculating circuit and a control circuit. A first terminal of the first switch is connected to a first terminal of an inductor. A second terminal of the inductor is connected to an input power source. A first terminal of the second switch is connected to a second terminal of the first switch. A second terminal of the second switch is connected to the output calculating circuit. A first terminal of the low-side switch is connected to the first terminal of the first switch. A control circuit is connected to a control terminal of the first switch, a control terminal of the second switch, a control terminal of the low-side switch and the output calculating circuit.

Abstract: A power converter device is provided. A feedback circuit outputs a comparison output signal. A phase-locked loop circuit provides a phase-locked signal according to a reference clock signal and an inductor voltage in a power converter circuit. An on-time circuit provides an on-time comparing signal according to the phase-locked signal, an input voltage, the inductor voltage and an output voltage of the power converter circuit. A first input terminal of an SR flip-flop receives the on-time comparing signal from the on-time circuit. A second input terminal of the SR flip-flop receives the comparison output signal from the feedback circuit. A frequency control circuit, according to changes in the input voltage and the output voltage of the power converter circuit, instantaneously adjusts the on-time of the on-time signal such that an output terminal of the SR flip-flop outputs the adjusted on-time signal to the power converter circuit.

Abstract: A power converter device is provided. A feedback circuit outputs a comparison output signal. A phase-locked loop circuit provides a phase-locked signal according to a reference clock signal and an inductor voltage in a power converter circuit. An on-time circuit provides an on-time comparing signal according to the phase-locked signal, an input voltage, the inductor voltage and an output voltage of the power converter circuit. A first input terminal of an SR flip-flop receives the on-time comparing signal from the on-time circuit. A second input terminal of the SR flip-flop receives the comparison output signal from the feedback circuit. A frequency control circuit, according to changes in the input voltage and the output voltage of the power converter circuit, instantaneously adjusts the on-time of the on-time comparing signal such that an output terminal of the SR flip-flop outputs the adjusted on-time signal to the power converter circuit.

Abstract: A power converter is provided. A driver circuit is connected between a controller circuit and a switch circuit. The switch circuit is connected to an inductor. The inductor is connected in series with a first capacitor and grounded through the first capacitor. A first comparison input terminal of a first comparator is connected to an output terminal between the inductor and the first capacitor. A second comparison input terminal of the first comparator is grounded through a second capacitor. The controller circuit outputs a control signal for controlling the driver circuit to drive the switch circuit according to a comparison signal outputted by the first comparator. A reference current source provides a reference current to the second capacitor. A first terminal of a first resistor is connected to the second capacitor. A second terminal of the first resistor is coupled to a reference potential.

Abstract: A power converter is provided. A driver circuit is connected between a controller circuit and a switch circuit. The switch circuit is connected to an inductor. The inductor is connected in series with a first capacitor and grounded through the first capacitor. A first comparison input terminal of a first comparator is connected to an output terminal between the inductor and the first capacitor. A second comparison input terminal of the first comparator is grounded through a second capacitor. The controller circuit outputs a control signal for controlling the driver circuit to drive the switch circuit according to a comparison signal outputted by the first comparator. A reference current source provides a reference current to the second capacitor. A first terminal of a first resistor is connected to the second capacitor. A second terminal of the first resistor is coupled to a reference potential.

Abstract: A detection circuit and a switch module using the same is provided. The detection circuit includes a comparison circuit. A first input end of the comparison circuit is coupled to an output end of a power supply, and a second input end of the comparison circuit is coupled to an input end of a switch circuit. The comparison circuit compares voltage information or current information obtained via its first input end and it second input end, and accordingly generates an output signal. The output signal indicates whether there is an external resistor between the power supply and the switch circuit. According to the output signal, the switch circuit determines how a current provided by the power supply is to be detected, and accordingly continues or stops providing the current to a load.

Abstract: A power switch circuit includes a first switch circuit, a second switch unit and a capacitor. The capacitor has a first terminal coupled to a node between the first and second switch units. In addition, the capacitor has a second terminal coupled to the first and second switch units, a charge pump and a charging circuit. When the power switch circuit is coupled to a load, the charging circuit pre-charges the capacitor. Once the load is enabled, the first and second switch units are turned on by only a small voltage increase at the second terminal of the capacitor by the charge pump to allow power to be supplied to a load through the first and second switch units from a power supply.

Abstract: A detection circuit and a switch module using the same is provided. The detection circuit includes a comparison circuit. A first input end of the comparison circuit is coupled to an output end of a power supply, and a second input end of the comparison circuit is coupled to an input end of a switch circuit. The comparison circuit compares voltage information or current information obtained via its first input end and it second input end, and accordingly generates an output signal. The output signal indicates whether there is an external resistor between the power supply and the switch circuit. According to the output signal, the switch circuit determines how a current provided by the power supply is to be detected, and accordingly continues or stops providing the current to a load.

Abstract: A partial concatenated coding system using an algebraic code and LDPC code is disclosed. The partial concatenated coding system includes an ECC encoder, a received codeword monitoring module and an ECC decoder. The ECC encoder has a LDPC code encoding module and an algebraic code encoding module. The ECC decoder has a LDPC code decoding module and an algebraic code decoding module. Comparing with conventional concatenating coding systems, the present invention has advantages of less spare spaces, better error-correcting performance, lower hardware complexity, better decoding throughput and fixable code length.

Abstract: A hydroponic device includes a water tank, a drain pan, a hydroponic module and a light emitting diode module. The water tank delivers water to the drain pan via a drain pump. The water is then dispensed to each pot body of the hydroponic module. Each pot body includes an inner pot and an outer pot. Water inside the inner pot will flow to the outer pot through the draining hole. Water will flow out of an overflow outlet and re-enter the water tank if the water level is higher than the overflow outlet. The light emitting diode module is disposed above the hydroponic module.

Abstract: The present invention discloses a source driver and a method for restraining noise output by a source driver during power on/off of a power supply. The source driver includes a data bus, a plurality of channels, a multiplexer and a plurality of output pads. The channels are connected to the output pads via the multiplexer. Each channel has a latch unit. Data is transmitted on the data bus and stored in the latch units. The source driver is powered by a first supply voltage from the power supply. The method comprises determining whether the first supply voltage is insufficient, and if yes, performing the following steps. First, set the data transmitted on the data bus to be a predetermined value. Then, keep the latch units turned on, thereby the data is sent out from the latch units. Then, keep the multiplexer turned on for outputting a driving voltage based on the data via the output pads.

Abstract: A shoe upper material includes a raw material layer. The raw material layer has a thermoform layer through vacuum thermoforming disposed thereon. The upper surface of the thermoform layer protrudes from the upper surface of the raw material layer. The raw material layer is made of animal leather, artificial leather, or composite leather, with a thickness of 0.4-3.0 mm. A base fabric is disposed below the raw material layer, wherein the thickness of the base fabric is 0.1-2.8 mm; the thermoform layer can be vacuum thermoformed entirely with the upper surface of the raw material layer or be vacuum thermoformed with multiple portions of the upper surface of the raw material layer respectively. The thermoform layer include one of the upper medial, the upper lateral, the toe piece, the tongue piece, and the rear quarter or any combination of more than one.

Abstract: A vacuum forming method for a leather product, comprising the following steps: making a mold; heating a raw material of the leather product to a predetermined temperature and placing the raw material on a surface to form a pattern on the raw material, the pattern formed on the raw material corresponding to a pattern of the mold surface, wherein the raw material is disposed under a vacuum forming condition; and cooling the raw material of the leather product for making the leather product; wherein the predetermined temperature is between 150° C. to 200° C.; the vacuum forming condition is between 350 mmHg-700 mmHg for a vacuum degree. The present invention provides an easy manufacturing technique, which uses an easy-to-produce mold to form the leather product in one process, thereby providing the leather product with high emulation and high production efficiency.

Abstract: A circuit for resetting a display having at least one driver outputting a driving voltage through an output channel to a corresponding data line of a panel comprises a first switch and a second switch. The first switch is actuated by a control pulse to transfer a reset voltage to the data line of the panel. The second switch is actuated by the control pulse to electrically isolate the output channel of the driver from the data line of the panel, wherein the control pulse is asserted during transient periods resulting from power-on and power-off of the display.

Abstract: An output buffer circuit with enhanced slew rate is disclosed. A first and a second slew-rate enhancing transistor are configured to enhance the slew rate of the source transistor and the sink transistor of an output stage. A first control circuit and a second control circuit turn off the first and the second slew-rate enhancing transistors during the static state, and turn on the first and the second slew-rate enhancing transistors during the transition.

Abstract: A layout of a voltage/current reference system is disclosed. A first voltage/current reference circuit (for example, a bandgap reference circuit) and a second voltage/current reference circuit are respectively laid out on either side of a substrate, such as edges or perimeter sides of the substrate. A reference voltage/current is derived by averaging respective output reference voltage/current values of the first and the second voltage/current reference circuits. Accordingly, the noise influence on the voltage/current reference system is minimized.

Abstract: An electronic device is provided, including a first body, a second body, an axle assembly, a supporting frame, a display panel, a lens unit and a reflective unit. The second body is connected to the first body. The axle assembly is disposed between the first body and the second body, and via which first body is rotatable relative to the second body. The supporting frame is disposed in the second body and connected to the axle assembly, wherein the supporting frame is rotated with the rotation of the axle assembly. The display panel is fastened in the supporting frame. The lens unit is disposed on an end of the supporting frame. The reflective unit is disposed on the supporting frame and adjacent to the display panel.

Abstract: The present invention discloses a source driver and a method for restraining noise output by a source driver during power on/off of a power supply. The source driver includes a multiplexer, at least two channels and at least two output pads. The channels are connected to the output pads via the multiplexer. The source driver is powered by a first supply voltage from the power supply. The two output pads are connected via a charge sharing switch. The method comprises the following steps. First, determine whether the first supply voltage is insufficient, and if yes, perform the following steps. Turn off the charge sharing switch. Then, disconnect the channels from the output pads by the multiplexer.

Abstract: A power distribution system is disclosed. The system includes a first power line and a second power line laid out on a substrate. The first power line is spaced apart from the second power line. The system also includes at least one conductive connecting line that electrically couples the first power line at one end and the second power line at another end. A power supply supplies power to the first power line and the second power line. A supply node on the conductive connecting line is then used to provide the supplied power.

Abstract: A method for repairing a display panel having a defect is provided, wherein a polarizer has been attached to a surface of the display panel, and the method includes following steps. First, a recess corresponding to the defect is formed at an outer surface of the polarizer. Afterward, a light-shielding material is filled into the recess. Besides, a display panel with a good display quality is also provided.