Abstract: The purpose of the present invention is to provide a combustion device for improving a turndown ratio, which is capable of stably implementing a combusted state in a low-output load region by improving a turndown ratio of a burner. To this end, the present invention provides the combustion device having a premixing chamber (300) which is connected to an air supply tube (100) and a gas supply tube (200), and which has a space for premixing air and gas provided therein, wherein the space for premixing the air and gas supplied from the air supply tube (100) and the gas supply tube (200) is divided into multiple stages of a venturi structure in the premixing chamber (300), and the discharging direction of the gas discharged inside the premixing chamber (300) through the gas supply tube (200) is formed in parallel to the flow direction of the gas supplied inside the premixing chamber (300) through the air supply tube (100).

Abstract: A capacitive sensing device comprises first electrodes in which a plurality of first sensing elements are arranged in rows and columns, and second electrodes in which a plurality of second sensing elements are arranged in rows and columns. Each of the first sensing elements has an iron cross shape, and each of the second sensing elements has a double-cross shape in which a first cross and a second cross overlap each at a shared center point and the second cross is rotated with respect to the first cross. Capacitances are formed between the first sensing elements and the second sensing elements.

Abstract: A capacitive touch screen panel (TSP) includes multiple TSP sections assembled in a planar arrangement to provide a unitary user interface area. Each one of the TSP sections is configured for independent activation/deactivation with respect to other TSP sections.

Abstract: A display panel driving apparatus and a method of driving the same are provided, and, in particular, a gate driver and a method of driving the gate driver. The gate driver includes a decoder that decodes gate line selection data and that generates a gate line selection signal. A gate driving circuit generates a gate driving signal in a pre-charging phase and a driving phase in response to the gate line selection signal and a pre-charging control signal that controls an off-state of non-selected gate lines. In a time period of the driving phase in which a gate line is not selected, a node that has been in a floating state is held to a target voltage level in response to a hold control signal. The hold control signal is generated based upon a timing relationship between the gate line selection signal and the pre-charging control signal.

Abstract: Disclosed is a wireless power transmitter. The wireless power transmitter for transmitting power to a wireless power receiver in a wireless scheme, includes a transmission circuit unit converting power supplied from a power supply unit into power having a frequency for resonance; a transmission induction coil coupling the converted power; and a transmission resonance coil disposed adjacent to the transmission induction coil to transfer the coupled power from the transmission induction coil to the wireless power receiver using the resonance, wherein the transmission circuit unit is vertically spaced apart from the transmission resonance coil.

Abstract: A digital-to-analog converter includes a voltage-to-current converter, a current-mode digital-to-analog converter and an operational amplifier. The voltage-to-current converter generates a first current signal, and the current-mode digital-to-analog converter generates a second current signal. The operational amplifier modulates a drain current in response to the second current signal and generates an output signal having an offset.

Abstract: A current reference circuit includes a proportional-to-absolute temperature (PTAT) current generator, a band-gap reference circuit and a current replication circuit. The PTAT generator generates a PTAT current. The band-gap reference circuit generates a reference voltage based on the PTAT current and generates a second current by cancelling a first current from the PTAT current. The first current has a zero temperature coefficient and the second current has a positive temperature coefficient. The current replication circuit replicates the first current based on the PTAT current and the second current.

Abstract: A method and apparatus for generating a low reference voltage having low power consumption characteristics is provided. A reference voltage generating apparatus includes a constant current source circuit which generates a reference current. A load circuit is connected to the constant current source circuit and generates a voltage which is proportional to the reference current. A current branch circuit removes a portion of temperature-invariant current components included in the reference current from a connection terminal of the constant current source circuit and the load circuit to a ground terminal through a current branch which is different from a current branch of the load circuit.

Abstract: An apparatus for generating a VCOM voltage in a display device includes first and second buffer amplifiers and a charge pump. The first buffer amplifier is biased with high and low rail voltages for generating the VCOM voltage. The second buffer amplifier generates the high rail voltage at an output node not connected to an external capacitor. The charge pump generates the low rail voltage by charge pumping directly from an external power supply voltage. Alternatively, a charge pump and a comparator are used for generating the VCOM voltage at an output of the charge pump. The comparator generates a charge pump control signal from comparing the VCOM voltage with a reference voltage.

Abstract: A semiconductor device includes a voltage regulator. The device includes an operational amplifier configured to compare an input voltage with a feedback voltage and output an output voltage, an up-resistor connected between an output of the operational amplifier and a first node, a down-resistor connected between a second node and a ground voltage terminal, and a switching unit including a fuse box connected between a third node outputting the feedback voltage and a fourth node having a variable resistance value, and configured to connect the first node with the fourth node and the second node with the third node, or connect the first node with the third node and the second node with the fourth node.

Abstract: A touch controller includes a touch data generator that is connected to a plurality of sensing lines, the touch data generator sensing a change in capacitance of a sensing unit connected to each of the sensing lines and generating touch data by processing the sensing signal corresponding to the result of sensing; and a signal processor that controls a timing of generating the touch data by receiving at least one piece of timing information for driving a display panel from a timing controller, and then providing either the timing information or a signal generated from the timing information as a control signal to the touch data generator.

Abstract: An apparatus for generating a voltage required for a semiconductor device by using a voltage supplied from an external power supply is provided.

Abstract: A method and apparatus for generating a low reference voltage having low power consumption characteristics is provided. A reference voltage generating apparatus includes a constant current source circuit which generates a reference current. A load circuit is connected to the constant current source circuit and generates a voltage which is proportional to the reference current. A current branch circuit removes a portion of temperature-invariant current components included in the reference current from a connection terminal of the constant current source circuit and the load circuit to a ground terminal through a current branch which is different from a current branch of the load circuit.

Abstract: A method and apparatus for generating a low reference voltage having low power consumption characteristics is provided. A reference voltage generating apparatus includes a constant current source circuit which generates a reference current. A load circuit is connected to the constant current source circuit and generates a voltage which is proportional to the reference current. A current branch circuit removes a portion of temperature-invariant current components included in the reference current from a connection terminal of the constant current source circuit and the load circuit to a ground terminal through a current branch which is different from a current branch of the load circuit.

Abstract: A display driver integrated circuit using a ping-pong type sample and hold circuit is provided. The display driver integrated circuit includes a data counter, a comparison unit, a gray voltage generation unit, and a sample and hold circuit. The data counter outputs first through n-th gamma data in response to a clock signal. The comparison unit compares input image data with each of the first through n-th gamma data so as to output a comparison signal. The gray voltage generation unit generates first through n-th gray voltages in response to the first through n-th gamma data. The sample and hold circuit includes a first sub sample and hold circuit and a second sub sample and hold circuit and outputs one of the first through n-th gray voltages in response to the comparison signal.

Abstract: An oscillator including a current bias circuit and a ring oscillator. The current bias circuit tracks a temperature change of the oscillator by using a control voltage and generates a plurality of bias voltages to supply a bias current according to the temperature change. The ring oscillator compares differential output signals generated according to the bias voltages and generates an oscillation signal as a result of the comparison.

Abstract: A capacitive sensing device comprises first electrodes in which a plurality of first sensing elements are arranged in rows and columns, and second electrodes in which a plurality of second sensing elements are arranged in rows and columns. Each of the first sensing elements has an iron cross shape, and each of the second sensing elements has a double-cross shape in which a first cross and a second cross overlap each at a shared center point and the second cross is rotated with respect to the first cross. Capacitances are formed between the first sensing elements and the second sensing elements.

Abstract: A digital-to-analog conversion circuit includes a digital-to-analog converter and a buffer amplifier. The digital-to-analog converter receives upper bits of digital data and a plurality of analog voltages and is configured to output two adjacent analog voltages of the plurality of analog voltages based on the upper bits. The buffer amplifier includes two input terminals. One of the input terminals receives one of the two adjacent analog voltages and the other input terminal receives the other adjacent analog voltage. The buffer amplifier is configured to generate a current offset by controlling a current flowing into each of the two input terminals based on lower bits of the digital bits.

Abstract: A level shifter including a voltage selection unit and at least one voltage level conversion unit. The voltage selection unit may be configured to apply a first voltage to a power supply node during a first time interval and apply a second voltage to the power supply node during a second time interval, in response to a control signal. The voltage level conversion unit may be connected to the power supply node and may be configured to convert a voltage level of an input signal to another voltage level based upon a voltage level at the power supply node and a third voltage.

Abstract: A current reference circuit includes a proportional-to-absolute temperature (PTAT) current generator, a band-gap reference circuit and a current replication circuit. The PTAT generator generates a PTAT current. The band-gap reference circuit generates a reference voltage based on the PTAT current and generates a second current by cancelling a first current from the PTAT current. The first current has a zero temperature coefficient and the second current has a positive temperature coefficient. The current replication circuit replicates the first current based on the PTAT current and the second current.