Abstract: There is provided an apparatus for regulating an output voltage, including: a sensing circuit sensing an output voltage from a charge pump; a comparator circuit receiving the output voltage from the sensing circuit so as to compare it with a predetermined reference voltage; and a limiter circuit regulating the output voltage according to an output signal from the comparator circuit.

Abstract: A chip electronic component includes a magnetic body including magnetic metal powder particles, an internal coil unit embedded in the magnetic body, and a cover unit disposed on at least one of upper and lower surfaces of the magnetic body and including a magnetic metal plate. The magnetic metal plate is cracked and includes a plurality of metal fragments.

Abstract: Provided is a mobile device including: an input reception unit for receiving at least one input through a user interface; a control information determination unit for determining control information corresponding to an operation of an external device based on the at least one input, wherein the control information includes a first symbol and a second symbol; a sound wave data generation unit for generating sound wave data corresponding to the control information; and an output unit for outputting a sound wave corresponding to the sound wave data generated by a sound wave generation apparatus. In this case, the sound wave data generation unit determines a first frequency corresponding to the first symbol and a second frequency corresponding to the second symbol, and generates the sound wave data based on the first frequency and the second frequency, and the sound wave data includes a portion corresponding to the first frequency and a portion corresponding to the second frequency.

Abstract: There are provided an apparatus for sensing capacitance, a method for sensing capacitance, and a touch screen apparatus. The apparatus for sensing capacitance includes; a first integration circuit unit including a first capacitor charged by a change in capacitance occurring in a sensing electrode; a comparison circuit unit comparing a level of an output signal of the first integration circuit unit with a predetermined reference level; and a noise removal unit including a plurality of switches operating according to an output of the comparison circuit unit, wherein the comparison circuit unit controls an operation of each of the plurality of switches to discharge charges charged in the first capacitor when the level of the output signal of the first integration circuit unit is higher than the reference level.

Abstract: A high voltage driver may include: a low side switching unit including first to n-th N-channel metal oxide semiconductor (NMOS) transistors; a high side switching unit including first and second to n-th P-channel MOS (PMOS) transistors; a voltage dividing unit dividing a voltage between the output terminal and the ground; a first constant voltage unit providing a constant voltage and a unidirectional signal path between a source and a gate of each of the first to n-th NMOS transistors; a second constant voltage unit providing a constant voltage and a unidirectional signal path between a source and a gate of each of the first to n-th PMOS transistors; a first charging unit providing a charged voltage to each of the gates of the second to n-th NMOS transistors; and a second charging unit providing a charged voltage to each of the gates of the second to n-th PMOS transistors.

Abstract: There are provided a touch sensing device and a touchscreen device. The touch sensing device according to an embodiment of the invention may include: a buffer unit including a buffer capacitor charged and discharged by a first voltage and a second voltage input at a predetermined period; an integrating circuit unit integrating a charging voltage of the buffer capacitor; a signal conversion unit comparing a voltage output from the integrating circuit unit with a predetermined reference voltage to generate the second voltage; and a touch determination unit counting the second voltage with a predetermined reference clock to determine a touch.

Abstract: An integration circuit may include a plurality of switches, at least one operational amplifier, and at least one feedback capacitor, sequentially transfers electrical charges charged in a node capacitor to the feedback capacitor, and integrates the electrical charges. The operational amplifier may be synchronized with a clock signal applied to at least one of the plurality of switches to thereby be operated in one of a normal mode and a low power mode.

Abstract: A touch sensing apparatus may include a driving signal generating circuit including a first switch and a second switch and providing driving signals to a first node of a node capacitor, the driving signals being generated by switching operations of the first switch and the second switch, and a C-V converting circuit including a buffer circuit having a first feedback capacitor and a third switch disposed between a second node of the node capacitor and the first feedback capacitor and transferring a charging voltage of the node capacitor to the first feedback capacitor through a switching operation of the third switch to generate an output voltage. The buffer circuit further includes a fourth switch disposed between the second node of the node capacitor and a current source, and the fourth switch is turned on in an off operation section of the third switch.

Abstract: There is provided a capacitance sensing apparatus including: a driving circuit unit applying a driving signal to a first capacitor; a first integrating circuit unit including a second capacitor charged by a change in capacitance generated in the first capacitor based on the driving signal to generate a first output voltage; and a second integrating circuit unit including a third capacitor charged by a change in capacitance generated in the second capacitor to generate a second output voltage, wherein a level of the second output voltage is changed at least twice during a single period of the driving signal applied to the first capacitor.

Abstract: There are provided an apparatus for sensing capacitance, a method for sensing capacitance, and a touch screen apparatus. The apparatus for sensing capacitance includes; a driving circuit unit applying driving signals to a first capacitor; an integration circuit unit including a second capacitor and a third capacitor respectively charged by a change in capacitance generated in the first capacitor based on the driving signals to generate a predetermined output voltage and calculating a voltage difference between the output voltage of the second capacitor and the output voltage of the third capacitor; and a control unit determining characteristics of a noise signal based on the voltage difference and controlling the driving signals based on the characteristics of the noise signal.

Abstract: A touchscreen device may include a panel unit including a plurality of first electrodes and a plurality of second electrodes; a driving circuit unit sequentially applying a driving signal having a predetermined period to the plurality of first electrodes; a sensing circuit unit detecting levels of capacitance from the plurality of second electrodes; and a driving voltage generating unit generating a driving voltage. The driving voltage generating unit adjusts a level of the driving voltage depending on a detected voltage which is detected in a first electrode, to which the driving signal is applied, among the plurality of first electrodes in a calibration section.

Abstract: There is provided an apparatus for generating a driving signal, the apparatus including: a first driving signal generation circuit generating a first driving signal; a second driving signal generation circuit generating a second driving signal, the second driving signal generation circuit including at least two transistors and a pulse generation unit; and a control unit controlling the first and second driving signal generation circuits so that they generate the first and second driving signals selectively.

Abstract: A high voltage driver may include: a low side switching unit including first to n-th N-channel metal oxide semiconductor (NMOS) transistors; a high side switching unit including first and second to n-th P-channel MOS (PMOS) transistors; a voltage dividing unit dividing a voltage between the output terminal and the ground; a first constant voltage unit providing a constant voltage and a unidirectional signal path between a source and a gate of each of the first to n-th NMOS transistors; a second constant voltage unit providing a constant voltage and a unidirectional signal path between a source and a gate of each of the first to n-th PMOS transistors; a first charging unit providing a charged voltage to each of the gates of the second to n-th NMOS transistors; and a second charging unit providing a charged voltage to each of the gates of the second to n-th PMOS transistors.

Abstract: There is provided a capacitance sensing apparatus including a driving circuit unit applying a driving signal to a first capacitor at a predetermined interval; and a sensing circuit unit sensing a change in capacitance generated by the first capacitor based on the driving signal, in which a portion of a plurality of switches included in the sensing circuit unit operate at a first interval, the same as the interval of the driving signal, and remaining switches among the plurality of switches operate at a second interval, different from the first interval.

Abstract: There is provided a touch sensing apparatus including: a panel unit including a plurality of driving electrodes and a plurality of sensing electrodes; a driving circuit unit applying one of a driving signal and a scanning signal having a frequency different from that of the driving signal, to each of the plurality of driving electrodes; a sensing circuit unit measuring a change in capacitance of a plurality of node capacitors generated in intersections of the plurality of driving electrodes and the plurality of sensing electrodes; and a calculation unit determining a touch based on a change in the capacitance, wherein when the scanning signal is applied to the plurality of driving electrodes, the calculation unit calculates capacitance deviations in the plurality of node capacitors from the deviations of changes in the capacitance generated by the plurality of node capacitors.

Abstract: A touchscreen device may include: a panel unit, a driving circuit unit, a sensing circuit unit and a control unit. The control unit may apply a driving signal to a first node capacitor formed at an intersection between a first and a first one of the plurality of sensing electrodes and calibrate gains of the plurality of converter circuit units. Each of the plurality of panel deviation calibration units may calibrate an output signal from the respective one of the plurality of converter circuit units by using a capacitance value of a first capacitor included in the respective one of the plurality of panel deviation calibration units when a driving signal is applied to the first one of the driving electrodes.

Abstract: There are provided a touch sensing device and a touchscreen device. The touch sensing device includes: a driving circuit applying a driving signal having a predetermined first period to a node capacitor; a buffer circuit converting capacitance of the node capacitor into a voltage signal; a buffer capacitor being charged and discharged depending on an output voltage from the buffer circuit; and an integration circuit integrating voltages charged in the buffer capacitor, wherein, in a normal touch mode, the buffer circuit integrates capacitance of the node capacitor to generate the voltage signal, and, in a proximity touch mode, the buffer circuit generates the voltage signal by following the voltages charged in the node capacitor.

Abstract: There is provided an apparatus for generating a driving signal, the apparatus including: a first driving signal generation circuit generating a first driving signal; a second driving signal generation circuit generating a second driving signal, the second driving signal generation circuit including at least two transistors and a pulse generation unit; and a control unit controlling the first and second driving signal generation circuits so that they generate the first and second driving signals selectively.

Abstract: There is provided a driving circuit for a charge pump circuit generating an output voltage by stepping-up an input voltage at least once, according to a clock signal. The driving circuit includes: an oscillator generating the clock signal; a comparison unit comparing the output voltage with a predetermined reference voltage; and a control unit generating a control signal to be provided to the oscillator, the control signal changing at least one of a frequency level and a duty level of the clock signal based on a comparison result from the comparison unit.

Abstract: There is provided an apparatus for regulating an output voltage, including: a sensing circuit sensing an output voltage from a charge pump; a comparator circuit receiving the output voltage from the sensing circuit so as to compare it with a predetermined reference voltage; and a limiter circuit regulating the output voltage according to an output signal from the comparator circuit.