Abstract: A charge pump control system for a battery management system, wherein: the battery management system comprises: a plurality of cell-balancing-switches, one for each of a plurality of battery cells, wherein each cell-balancing-switch is in parallel with a respective one of the battery cells; a plurality of switch-drivers, one for each of the cell-balancing-switches, wherein each switch-driver is for providing a drive signal to selectively close a respective one of the cell-balancing-switches; and a charge pump that is configured to provide an output voltage to each of the plurality of switch-drivers. The charge pump is operable at a switching frequency that sets the maximum output current. The charge pump control system is configured to set the switching frequency of the charge pump based on the number of switch-drivers that are providing their respective cell-balancing-switches with a drive signal to close the cell-balancing-switch.

Abstract: A calibration apparatus for a communication system. The calibration apparatus is configured to: a) set a variable termination-resistance at a receiver to a predetermined value; b) cause a transmitter to send a calibration pattern to the receiver by: setting the differential voltage on the line to a non-zero value during a non-zero-phase; and setting the differential voltage on the line to zero during a subsequent zero-phase; c) compare the differential voltage on the line during the zero-phase with a reduced-bit-value-threshold, wherein the reduced-bit-value-threshold is less than a bit-value-threshold that is used during active communication. If the differential voltage on the line during the zero-phase exceeds the reduced-bit-value-threshold, then the calibration apparatus adjusts the value of the variable termination-resistance and returns to step b).

Abstract: A transceiver comprising: a transmitter configured to transmit a signal comprising differential voltages to at least a first terminal and a second terminal; at least one receiver; a controller configured to provide control signals to the transmitter to cause the transmitter to transmit symbols, wherein each symbol comprises a predefined set of said differential voltages including at least a positive differential voltage and a negative differential voltage; and a signal balance module configured, for one or more symbols, to: determine a first duration of the positive differential voltage of said one or more symbols; determine a second duration of the negative differential voltage of said one or more symbols; based on determination of a difference between the first and second durations, provide for control of the controller or control of the transmitter to reduce the difference between the first and second durations in a further symbol relative to the one or more symbols.

Abstract: The present invention relates to a DC-DC boost converter which ensures a fast start until the desired output voltage is reached without causing a high input current during the start phase. In particular, the limitation of the input current is influenced according to the initial output voltage. The invention also relates to a method for the boost converter.

Abstract: The present disclosure relates to a transceiver (100) comprising a first and second terminal, a signal generation unit a signal generation unit (110) for generating a differential output voltage (Vout) between the terminals, a sensor unit (112) configured to measure an electric current (Iout) when flowing through one of the terminals, and a control unit (114) for controlling the signal generation unit, wherein the control unit is configured to control the signal generation unit during a calibration phase to generate a predetermined differential output voltage reference pattern (140), wherein the sensor unit is configured to measure a calibration current unit during the calibration phase, and wherein the control unit is configured to calibrate the signal generation unit depending on the calibration current. The present disclosure also relates to a method for the transceiver.

Abstract: A switched current control module comprises a hysteretic control component arranged to receive high and low threshold values and an indication of a current flow through a load, and to output a switched current control signal based on a comparison of the current flow indication to the high and low threshold values. A threshold generator is arranged to generate the high and low threshold values based on a base threshold value and a hysteretic excursion value. A base threshold value generator is arranged to generate the base threshold value based on the current flow indication and a setpoint value. A hysteretic excursion value generator is arranged to receive an indication of a switching frequency of the switched current control signal output by the hysteretic control component, and to generate the hysteretic excursion value based on the indicated switching frequency of the switched current control signal.

Abstract: A switched current control module comprises a hysteretic control component arranged to receive high and low threshold values and an indication of a current flow through a load, and to output a switched current control signal based on a comparison of the current flow indication to the high and low threshold values. A threshold generator is arranged to generate the high and low threshold values based on a base threshold value and a hysteretic excursion value. A base threshold value generator is arranged to generate the base threshold value based on the current flow indication and a setpoint value. A hysteretic excursion value generator is arranged to receive an indication of a switching frequency of the switched current control signal output by the hysteretic control component, and to generate the hysteretic excursion value based on the indicated switching frequency of the switched current control signal.