Abstract: Circuitry includes an acquiring circuit to acquire period and phase information of an oscillation. The acquiring circuit includes a first input electrically coupled to a first connection and a second input electrically coupled to a second connection. The first connection and the second connection are for electrically coupling to an oscillating circuit. A control circuit includes a first input electrically coupled to an output of the acquiring circuit. The control circuit includes a second input electrically coupled to a third connection for supply of a voltage that is based on the rectified voltage. A switch includes a controlled segment for electrically coupling a fourth connection to a reference potential connection, and a control connection that is electrically coupled to an output of the control circuit to excite an oscillation in the oscillating circuit via a DC voltage.

Abstract: A sensor system and method of operating such a sensor system for measuring an angle of rotation with an arrangement of at least four magnetic sensors (10, 11, 12, 13), at least four signal modulators (30, 31, 32, 33), each one connected to one of the magnetic sensors (10, 11, 12, 13) and having at least two control states, whereby, in a first state (+), a signal received from a sensor (10, 11, 12, 13) is output by the signal modulators (30, 31, 32, 33) and, in a second state (?), the inverse of the signal received from the sensor (10, 11, 12, 13) is output by the signal modulators (30, 31, 32, 33), a means (90) for adding the signals output by the signal modulators (30, 31, 32, 33) and a diametrically magnetized magnetic source (9). The sensor system further comprises a data output (82) and a control circuit (80) with at least one control input (81), allowing to switch the control circuit (80) into at least two different modes.

Abstract: A differential amplifier comprises a first amplifier (A1) with a signal input (Inp) and a signal output (Out1) that is fed back to a first feedback input (In1) of the first amplifier (A1) and is also connected to a first output (outp) of the differential amplifier. Furthermore, a buffer circuit (Buff) is connected to the first output (outp). A nonlinear resistor circuit (Rnl1, Rnl2) is coupled via a first output node (Vmid1) with the first output (outp) and via a second output node (Vmid2) with the buffer circuit (Buff).

Abstract: A sensor arrangement comprises a first, a second and a third magnetic field sensor that are arranged along a curved principal direction. A first combination means is connected to the first and second magnetic field sensors and a first channel signal can be derived from the signals of the first and second magnetic field sensors by the first combination means. A second combination means is connected to the first, second and third magnetic field sensors (SM1, SWM2, SM3. A second channel signal is derived by the second combination means from signals of the first, second and third magnetic field sensors. An evaluation unit that is connected to the first and second combination means is set up to derive an end position of a magnetic source movable relative to the sensor arrangement as a function of the first and second channel signals.

Abstract: The circuit arrangement for the supply of voltage comprises a control arrangement (2), a charge pump (14), a comparator (25) and a ramp signal generator (30). A power supply voltage (Vdd) can be fed to the input of the charge pump (14). The input of the charge pump (14) is coupled to a first output (5) of the control arrangement (2), and comprises an output (17) for the supply of an output voltage (VHv). A first input (26) of the comparator (25) is coupled to the output (17) of the charge pump (14), while the output is coupled to a first input (3) of the control arrangement (2) in order to supply a comparator signal (Vc). The input of the ramp signal generator (30) is connected to a second output (6) of the control arrangement (2), while its output is connected to a second input (27) of the comparator (25) in order to deliver a reference output voltage (Vref_out).

Abstract: In one embodiment, a central unit, particularly for use in a network, has a memory (2) for at least one light pattern (L) that is suitable for running on a terminal device (5), a control logic (3) connected to the memory (2) and a communications interface (4) coupled to the control logic (3) for providing the at least one light pattern (L) for the terminal device (5). In one embodiment, a terminal device, particularly for use in a network, comprises a process control unit (10), a communications interface (11) connected to the process control unit (10) and that is set up for downloading at least one light pattern (L), and a memory (12) coupled to the process control unit (10) for storing the at least one light pattern (L).

Abstract: A voltage conversion circuit comprises a first and a second output (O1, O2) which are configured to have an electric load (LD) connected therebetween, wherein an output signal between the first and a second output (O1, O2) is generated in response to a pulse-width modulated clock signal (PWM). The circuit further comprises a forward branch (FWD) being configured to generate an output voltage (VDC) at the first output (O1) depending on a control signal. A feedback branch (FBK) comprises a comparison circuit (CC) being configured to generate the control signal.

Abstract: An arrangement for charge integration comprises a charge-generating circuit (2) that provides a charge-dependent signal, and a coupling circuit (20) comprising a first and a second transistor (T1, T2). The first transistor (T1) can be controlled in dependence on the charge-dependent signal. The second transistor (T2) is configured to forward the charge-dependent signal in dependence on a control signal provided by the first transistor (T1). The forwarded charge-dependent signal is integrated by an integrator (30).

Abstract: At least one terminal contact surface (1) is formed on a topmost metal plane (2). Under it, in a secondmost metal plane (3), is a reinforcement region (8), in which the secondmost metal plane (3) is structured within its two-dimensional extent such that a part of the area of the vertical (with respect to the metal plane) projection of the terminal contact surface (1) onto the secondmost metal plane (3) that is occupied by the metal of the secondmost metal plane (3) amounts to at least one third of the area.

Abstract: A band gap reference circuit comprises a first branch (1) having a first transistor (Q1) and a first temperature-dependent resistive element (S0). A second branch of the band gap reference comprises a second transistor (Q2) having a different size compared to the first transistor (Q1). An output branch (3) comprises a second temperature-dependent resistive element (S1, S2), that second temperature-dependent resistive element being coupled to an output terminal (Vref). At least one of the first and second temperature-dependent resistive elements (S0, S1, S2) comprises a transistor (M2) being arranged in a current path of the respective branch (1, 3) and being controlled such that it operates in a linear region of its characteristics.

Abstract: A current mirror arrangement comprises a switchable, adjustable current source (Q1, Q2) for providing an impression current (IP), a current mirror (SP) having an input (E) for feeding in an impression current (IP) and an output (A) for providing a current (I), and a step-up generator (AG) coupled to the current mirror (SP) such that the current (I) is switched on with an adjustable slew rate. In addition, a method for switching on a current is provided.

Abstract: A DC/DC converter arrangement comprises an input terminal (10) to receive a supply voltage (VIN), an output terminal (12) to provide an output voltage (VOUT) and a switching arrangement (11), comprising a coil (46) and at least two switches (42, 43, 44, 45) to provide a Buck-Boost conversion. The arrangement further comprises a current detection circuit (50) which is coupled to the switching arrangement (11) for sensing a coil current (IL) and a comparator (24), comprising a first input (25) which is coupled to the output terminal (12) and a second input (26) which is coupled to an output (52) of the current detection circuit (50). An output (27) of the comparator (24) is coupled to the switching arrangement (11). Furthermore, the arrangement comprises a ramp generator (60) which is coupled to the first or the second input (25, 26) of the comparator (24).

Abstract: A current source (10), comprising a bipolar transistor (1) including a control terminal and a controlled path, a first terminal on the controlled path, to which first terminal an electrical load (D1, D2) may be connected, a second terminal on the controlled path, which second terminal may be connected to a reference potential via a resistor (4), a measuring device (2) coupled to the control terminal for measuring a control current on the control terminal, a compensation device (3) coupled to the measuring device (2) and the bipolar transistor (1) in such a manner that the control current of the bipolar transistor (1) is compensated for at the first terminal of the controlled path.

Abstract: A circuit arrangement (1) for driving an electrical load (13) comprises a first and a second terminal (2, 3) for feeding a first and a second control signal (S1, S2), a first output (23), to which an electrical load (13) can be coupled, a current source (9), which is coupled to the first output (23), and a control device (5). The control device is coupled to the first and the second terminal (2, 3) and comprises a programming circuit (6) and a trigger circuit (7), which are each coupled on the output side to a control input of the current source (9).

Abstract: A resonant circuit arrangement is for generating an amplitude-shift-keyed and/or phase-shift-keyed signal. The resonant circuit arrangement includes a capacitive storage element having a first terminal and a second terminal. The first terminal is electrically connectable to a control voltage and the second terminal is electrically connected to a reference potential. The resonant circuit arrangement also includes an inductive storage element having a third terminal and a fourth terminal, where the third terminal is electrically connectable to the reference potential, a first switch for electrically connecting the fourth terminal to the reference potential, a second switch for electrically connecting the fourth terminal and the first terminal, and a control unit for driving the first and second switches based on transmission data.

Abstract: The circuit arrangement comprises a symmetrically constructed comparator (3), a non-volatile memory cell (10) and a reference element (20). The comparator (3) exhibits a latching function, and is connected in a differential current path that joins the power supply terminal (9) to a reference potential terminal (8). The non-volatile memory cell (10) is connected in a first branch (35) of the differential current path, and the reference element (20) is connected in a second branch (55) of the differential current path.

Abstract: A controlled current source comprises a signal input to receive a control input bus signal (D0, . . . , D[n?1]), a mapping unit (MU) with an input coupled to the signal input and an output to provide an internal control bus signal (d0, . . . , dn, Hc), a reference generator (RG) with an input coupled to the output of the mapping unit (MU) and with a low reference output to provide a low reference potential (Vgl) and with a high reference output to provide a high reference potential (Vgh), a current generating unit (CG) with a first input coupled to the output of the mapping unit (MU), a second input coupled to the output of the reference generator (RG) and an output to provide an output current (Iout) controlled by the control input bus signal (D0, . . . , D[n?1]) and the low and high reference potentials (Vgh, Vgl). Furthermore, a method for sourcing a current is provided.

Abstract: A voltage-converter arrangement comprises an arrangement input (11) for the supply of an input voltage (VIN), an arrangement output (12) for the provision of an output voltage (VOUT), a voltage converter (13) that is coupled on the input side to the arrangement input (11) and on the output side to the arrangement output (12), and a control device (20) with a control output (21). The control output (21) is coupled to the voltage converter (13). A control signal (SW) can be picked up at the control output (21). The control device (20) is designed to switch the frequency (f) of the control signal (SW) between values from a number N of predetermined, discrete frequency values. The voltage converter (13) is designed to convert the input voltage (VIN) into the output voltage (VOUT) as a function of the control signal (SW).

Abstract: A loudspeaker for active noise cancellation is disclosed in which a measurement microphone (12) is arranged at the acoustic center. In addition, a system for active noise cancellation is described.

Abstract: A housing (1) is provided which in particular is suitable for a mobile phone and, in addition to the customary loudspeaker housing (2) for accommodating a loudspeaker (4), comprises an additional housing (3) enclosing an additional volume of air (16) and being arranged in a preferential direction (V) for sound emission of the loudspeaker housing (2). Further, a loudspeaker module comprising the housing (1) as well as a loudspeaker (4), a microphone (8) and a control unit for active noise suppression is provided.