Abstract: A touch panel includes a first plurality of electrodes and a second plurality of electrodes. A plurality of transmitters generate a plurality of transmit signals by modulating a common sine wave signal with a set of orthogonal modulation signals, and drive each transmit signal onto a corresponding electrode of the first plurality of electrodes. Each transmit signal is generated by modulating the common sine wave signal with a unique orthogonal modulation signal of the set of orthogonal modulation signals. At least two of the plurality of transmit signals are not orthogonal. Each receiver of a plurality of receivers senses a receive signal on a corresponding electrode of the second plurality of electrodes and generates a set of correlation signals by correlating the receive signal with each transmit signal of the plurality of transmit signals. The sets of correlation signals are used to detect a touch event on the touch panel.

Abstract: The disclosure relates to a touch screen sensing system, example embodiments of which comprise: a touch screen panel having a plurality pairs of touch sensing electrodes (row1-Nrow, col1-Ncol) arranged in rows and columns extending across the panel; and a plurality of transceivers, each of the plurality of transceivers connected to send and receive sensing signals to and from a respective one of the plurality of touch sensing electrodes (row1-Nrow, col1-Ncol), wherein each one of the plurality of transceivers is configured to transmit a sensing signal including a range of frequencies over a signal bandwidth, the sensing signals being orthogonal to each other.

Abstract: The invention relates to a device for measuring (4) at least one electrical quantity of an electrical signal flowing in a contact device (2), the contact device (2) comprising, for each phase from N phases, a contact element (18) connected to an electrical phase conductor (15), the at least one electrical quantity comprising a voltage, the device for measuring (4) being configured to be installed on the front face of said contact device (2), and comprising an electronic control unit (24) comprising N flexible sheets (26), and for each phase: a connection assembly (20) connected to one of said flexible sheets (26), an actuating part (22) of the connection assembly (20), configured to be displaced from a free position in which the connection assembly (20) is electrically insulated from the contact device to a blocked position in which the connection assembly (20) bears against one of said contact elements (18) of the contact device.

Abstract: An error amplifier including a differential pair circuit, a resistive device, a low voltage capacitor, and a protection device. The differential pair circuit is coupled between an upper supply node and a lower supply node with first and second intermediate nodes and is responsive to a difference between a reference voltage and a feedback voltage for driving a control voltage developed on the second intermediate node. The resistive device is coupled between the second intermediate node and a low voltage node, and the low voltage capacitor and the protection device are coupled between the low voltage node and the lower supply node. The protection device is dynamically controlled by the first intermediate node to prevent the low voltage node from exceeding a predetermined maximum level. The protection device may be a transistor having size parameters based on voltage characteristics of the first intermediate node during expected operating conditions.

Abstract: A touch sensor controller including a line driver and a method of calibrating a line driver for a touch panel are described. The line driver is configured to be coupled to a row or column of a touch panel, the method includes providing a line drive current and providing a sense current related to the drive current. The sense current values are digitized and an overload status determined dependent on the digitized sense current values. The line driver is controlled to increase or decrease the line drive current dependent on the overload status.

Abstract: A method for display noise canceling in a touch sensing system includes measuring a first feedback voltage of a feedback node resistively coupled to a line voltage of a capacitive touch panel, the line voltage formed by a continuous wave output of an amplifier responsive to a reference voltage difference between the first feedback voltage and a reference voltage. A second feedback voltage is clamped to a first upper voltage threshold in response to a first voltage difference between the first feedback voltage and the reference voltage being greater than the first upper voltage threshold. The second feedback voltage is clamped to a first lower voltage threshold in response to the first voltage difference being less than the first lower voltage threshold.

Abstract: Embodiments of the present disclosure provide a control method and a control device for an electric switch, and an electric switch. The control method includes: obtaining a voltage signal representing a control voltage, the control voltage input to the electric switch and applied to an electromagnetic assembly of the electric switch via a regulation device of the electric switch; determining, based on the voltage signal obtained, a target control parameter for the electromagnetic assembly, the target control parameter comprising at least one of a target voltage and a target current; and generating, based on the target control parameter determined, a control signal for the regulation device, to cause the electromagnetic assembly to drive a movable contact of the electric switch to contact a static contact of the electric switch. The solution of the present disclosure can effectively reduce wear of contact points of contacts, to thus prolong the service life of the electric switch.

Abstract: A touch screen is disclosed having a length and a height, and comprising interspaced and galvanically isolated first and second arrays of touch pads; wherein the first array of touch pads comprises a plurality of first strings of series-connected touch pads, each first string forming a drive line and extending in a first general direction; wherein the second array of touch pads comprises a plurality of second strings of series-connected touch pads, each second string forming a read line and extending in a second general direction, different to said first general direction; wherein the first general direction and the second general direction are each different from the length direction; and wherein the touch screen is configured for capacitive-based sensing which may be based on a change in a mutual capacitance between individual ones of the drive lines and individual ones of the read lines.

Abstract: The disclosure relates to a contactor, which includes a coil unit including a coil and a first switch; a first power supply unit including a second switch and a voltage stabilizing diode, wherein the second switch is connected in parallel with the voltage stabilizing diode, and the first power supply unit is connected in series with the coil unit; a current detection unit, which is configured to detect a current flowing through the coil; a voltage detection unit, which is configured to detect a first supply voltage at the output; and the control unit, which is configured to control the switching on and off of the first switch according to the current detection signal, and to control the switching on and off of the second switch according to the voltage detection signal, wherein the first supply voltage is less than an input voltage.

Abstract: A touch panel system that includes drivers for providing detection signals on a first plurality of electrodes of a touch panel where each detection signal includes one or more frequency signal components with each frequency signal component having a frequency and a phase offset. The detection signals includes at least three phase offsets for at least one frequency of the frequency signal components. Each detection signal has a unique frequency-phase offset combination of the one or more frequency signal components. The unique combinations allow for the determination of a touch at specific locations on the panel by sensing signals on a second set of electrodes.

Abstract: A voltage regulator utilizes an external pass transistor coupled between a supply voltage node and a regulated node. The voltage regulator includes an internal pass transistor that is coupled between the supply voltage node and the regulated node. A two-tap voltage divider between the regulated node and a ground node provides two feedback voltages. A first control loop that controls the external pass transistor receives the first feedback voltage and a second control loop that controls the internal pass transistor receives the second feedback voltage. At startup the control loops run concurrently but the first control loop is prioritized to reduce load current provided by the internal pass transistor at the end of startup. The voltage difference between the first and second feedback voltages ensures prioritization of the first control loop and the external pass transistor supplies most or all of the load current.

Abstract: A method for display noise canceling in a touch sensing system includes measuring a first feedback voltage of a feedback node resistively coupled to a line voltage of a capacitive touch panel, the line voltage formed by a continuous wave output of an amplifier responsive to a reference voltage difference between the first feedback voltage and a reference voltage. A second feedback voltage is clamped to a first upper voltage threshold in response to a first voltage difference between the first feedback voltage and the reference voltage being greater than the first upper voltage threshold. The second feedback voltage is clamped to a first lower voltage threshold in response to the first voltage difference being less than the first lower voltage threshold.

Abstract: A method of generating a random number for a microcontroller unit, the microcontroller unit using the method, an apparatus including the microcontroller unit are provided. The method includes: reading, from a flash memory of the microcontroller unit, a random number generated the previous time the microcontroller unit was powered on, in response to the microcontroller unit being powered on; acquiring, random information of the microcontroller unit and using the random information as a seed of a random number generation algorithm to generate the random number in a case that the reading fails, and using, the read random number as the seed of the random number generation algorithm to generate the random number in case that the reading succeeds; and writing, the generated random number to the flash memory of the microcontroller unit.

Abstract: A modular contactor. The modular contactor includes a driving module (1), an intermediate connection module (2), a breaking module (3), an upper application interface module (4), and a lower application interface module (5); the driving module (1) is detachably connected to a first side of the intermediate connection module (2); the breaking module (3) is detachably connected to a second side of the intermediate connection module (2); the upper application interface module (4) is detachably connected to the top of the breaking module (3) so as to be electrically connected to upper static contacts of the multiple breaking units; the lower application interface module (5) is detachably connected to the bottom of the breaking module (3) so as to be electrically connected to lower static contacts of the multiple breaking units.

Abstract: A touch screen is disclosed having a length and a height, and comprising interspaced and galvanically isolated first and second arrays of touch pads; wherein the first array of touch pads comprises a plurality of first strings of series-connected touch pads, each first string forming a drive line and extending in a first general direction; wherein the second array of touch pads comprises a plurality of second strings of series-connected touch pads, each second string forming a read line and extending in a second general direction, different to said first general direction; wherein the first general direction and the second general direction are each different from the length direction; and wherein the touch screen is configured for capacitive-based sensing which may be based on a change in a mutual capacitance between individual ones of the drive lines and individual ones of the read lines.

Abstract: Embodiments of the present disclosure relate to a control device and method for a contactor. The control device comprises a first high-side control unit, a second high-side control unit, a first low-side control unit and a second low-side control unit. The first high-side control unit and the second high-side control unit respectively connect a first magnetic unit and a second magnetic unit of the contactor to a power supply. The first low-side control unit is connected between the first magnetic unit and a reference voltage node, and the second low-side control unit is connected between the second magnetic unit and the reference voltage node. The control device further comprises a freewheel unit connected to the first magnetic unit and the second magnetic unit. The control device further comprises a controller.

Abstract: Embodiments of the present disclosure relate to a control circuit for a contactor and a control method thereof.

Abstract: A touch panel system that includes drivers for providing detection signals on a first plurality of electrodes of a touch panel where each detection signal includes one or more frequency signal components with each frequency signal component having a frequency and a phase offset. The detection signals includes at least three phase offsets for at least one frequency of the frequency signal components. Each detection signal has a unique frequency-phase offset combination of the one or more frequency signal components. The unique combinations allow for the determination of a touch at specific locations on the panel by sensing signals on a second set of electrodes.

Abstract: A touch panel includes a first plurality of electrodes and a second plurality of electrodes. A plurality of transmitters generate a plurality of transmit signals by modulating a common sine wave signal with a set of orthogonal modulation signals, and drive each transmit signal onto a corresponding electrode of the first plurality of electrodes. Each transmit signal is generated by modulating the common sine wave signal with a unique orthogonal modulation signal of the set of orthogonal modulation signals. At least two of the plurality of transmit signals are not orthogonal. Each receiver of a plurality of receivers senses a receive signal on a corresponding electrode of the second plurality of electrodes and generates a set of correlation signals by correlating the receive signal with each transmit signal of the plurality of transmit signals. The sets of correlation signals are used to detect a touch event on the touch panel.

Abstract: A method for estimating the state of an electrical switching apparatus, the switching apparatus including separable electrical contacts configured to be coupled to an electrical conductor, and an electromagnetic actuator, controlled by a control circuit and including a movable core, coupled to the separable contacts, and a coil, which is passed through by a coil current. The method: includes measuring, by means of sensors associated with the coil, values of the coil current in a time interval, while the electromagnetic actuator is kept in a stable and in particular closed position, and computing, by means of an electronic control device of the switching apparatus, one or more values of a magnetic flux of the coil from the measured coil-current values, and using coil-voltage and coil-resistance values known beforehand.