Abstract: A digital low dropout regulator (LDO) for receiving a reference voltage and generating an output voltage comprising a comparison circuit configured to receive the reference voltage, receive a feedback voltage, the feedback voltage being dependent on the output voltage, compare the reference voltage and the feedback voltage, and generate an error signal that is dependent on the comparison between the reference voltage and the feedback voltage, a first digital to analog converter configured to be operable in a panic mode in which the first digital to analog converter is configured to receive the error signal, generate a first DAC code signal based on the error signal for a first time period, the output voltage being dependent on the first DAC code signal, and calculate a mean value of the generated first DAC code signal during at least a portion of the first time period, and set the first DAC code signal to the mean value as calculated, a panic circuit configured to detect when the feedback voltage exceeds a fi

Abstract: A current measurement system for a digital low dropout regulator (LDO) for receiving a reference voltage and generating an output voltage, the output voltage of the digital LDO being dependent on a first DAC code signal, the current measurement system comprising a current determination unit configured to receive the first DAC code signal, and generate an output current signal using the first DAC code signal.

Abstract: A digital low dropout regulator (LDO) for receiving a reference voltage and generating an output voltage, the digital LDO being synchronized to a clock signal and comprising a first digital to analog converter configured to generate a first DAC code signal, the output voltage being dependent the first DAC code signal, trigger state transitions of the first DAC code signal between states, and for at least a portion of the state transitions of the first DAC code signal, trigger each subsequent state transition after more clock cycles of the clock signal than for the preceding state transition.

Abstract: Described herein is a power converter operable in a pulse frequency modulation (PFM) mode. The power converted may be configured for maintaining a PFM frequency above a predetermined frequency threshold when a load current at an output node of the power converter decreases. The power converter may comprise an inductor. The power converter may be configured to, in a PFM switching cycle: during a positive charge phase of the PFM switching cycle, generate a positive charge across the inductor; and during a negative charge phase of the PFM switching cycle, generate a negative charge across the inductor smaller than or equal to the positive charge, such that a total net charge transferred to the output node during the PFM switching cycle is reduced, so as to maintain the PFM frequency above the predetermined frequency threshold.

Abstract: A conductive liquid path detection circuit for detecting a conductive liquid present in a receptacle connector and/or a mating connector plug is configured for discharging an electron charge from any conductive liquid present on a connector pin in the receptacle connector and/or a mating connector plug. The conductive liquid path detection circuit charges any conductive liquid present on the connector pin with an electron charge. The circuit repeatedly samples and retains the samples of the measurements of a voltage level present at the connector pin. The conductive liquid path detection circuit then analyzes the samples of the measurements to determine a slope of the samples of the measurements of a voltage level over time; and determines when an amplitude of a final measurement of the voltage level is less than a conductive liquid detection threshold level.

Abstract: An inductive current sensing method for a DC-DC switching converter is described. A sense coil is placed adjacent to a PCB track between the switching converter output and a load powered by the switching converter. A change in a magnetic field is measured around the track, generating a voltage proportional to a change in a load current. The load current is subtracted from an inductor current, when a current needed on the switching converter output is higher than a current in a steady state. In this way, output voltage undershoot or overshoot in the DC-DC switching converter is minimized.

Abstract: A switched-capacitor converter is provided that includes an intermediate voltage generator having a flying capacitor. A sampling and hold circuit samples a top plate voltage for the flying capacitor and samples a bottom plate voltage for the flying capacitor to form an output voltage for the switched-capacitor converter.

Abstract: A switched-capacitor converter is provided that includes an intermediate voltage generator having a flying capacitor. A sampling and hold circuit samples a top plate voltage for the flying capacitor and samples a bottom plate voltage for the flying capacitor to form an output voltage for the switched-capacitor converter.

Abstract: A conductive liquid path detection circuit for detecting a conductive liquid present in a receptacle connector and/or a mating connector plug is configured for discharging an electron charge from any conductive liquid present on a connector pin in the receptacle connector and/or a mating connector plug. The conductive liquid path detection circuit charges any conductive liquid present on the connector pin with an electron charge. The circuit repeatedly samples and retains the samples of the measurements of a voltage level present at the connector pin. The conductive liquid path detection circuit then analyzes the samples of the measurements to determine a slope of the samples of the measurements of a voltage level over time; and determines when an amplitude of a final measurement of the voltage level is less than a conductive liquid detection threshold level.

Abstract: Relax oscillation circuits have at least one comparison circuit that is structured with a flipped gate transistor and a normal MOS transistor wherein the two transistors having different threshold voltages. The relaxation oscillators are configured for charging and discharging capacitances between the threshold voltages of the flipped gate transistor and the normal MOS transistor by toggling the state of a latching circuit to control the charging and discharging of the capacitances.

Abstract: An apparatus and method for controlling an oscillating device is presented. In particular, a controller for adjusting the frequency of a drive signal driving a haptic actuator is presented. The controller contains a calculator adapted to receive a first and a second measurement of the electrical parameter and to calculate a difference between the first measurement and the second measurement. The first measurement is obtained at a first sampling time and the second measurement is obtained at a second sampling time. The controller is adapted to provide a control signal to adjust a frequency of the drive signal based on the difference.

Abstract: An inductive current sensing method for a DC-DC switching converter is described. A sense coil is placed adjacent to a PCB track between the switching converter output and a load powered by the switching converter. A change in a magnetic field is measured around the track, generating a voltage proportional to a change in a load current. The load current is subtracted from an inductor current, when a current needed on the switching converter output is higher than a current in a steady state. In this way, output voltage undershoot or overshoot in the DC-DC switching converter is minimized.

Abstract: A solid state lighting SSL assembly comprises an SSL device, a capacitor, a directional conducting device and a supply switch. The capacitor is coupled in parallel with the SSL device. The directional conducting device is coupled between an output terminal of the capacitor and a supply terminal which provides a supply voltage for the SSL assembly. The directional conducting device is configured to conduct in a direction from the output terminal to the supply terminal and to isolate in the opposite direction. The supply switch is coupled between the output terminal and ground. In addition, a method for operating a solid state lighting SSL assembly is proposed.

Abstract: A solid state lighting SSL assembly comprises an SSL device, a capacitor, a directional conducting device and a supply switch. The capacitor is coupled in parallel with the SSL device. The directional conducting device is coupled between an output terminal of the capacitor and a supply terminal which provides a supply voltage for the SSL assembly. The directional conducting device is configured to conduct in a direction from the output terminal to the supply terminal and to isolate in the opposite direction. The supply switch is coupled between the output terminal and ground. In addition, a method for operating a solid state lighting SSL assembly is proposed.

Abstract: A solid state lighting SSL assembly comprises an SSL device, a capacitor, a directional conducting device and a supply switch. The capacitor is coupled in parallel with the SSL device. The directional conducting device is coupled between an output terminal of the capacitor and a supply terminal which provides a supply voltage for the SSL assembly. The directional conducting device is configured to conduct in a direction from the output terminal to the supply terminal and to isolate in the opposite direction. The supply switch is coupled between the output terminal and ground. In addition, a method for operating a solid state lighting SSL assembly is proposed.

Abstract: A controller for a power converter to convert electrical power at an input voltage into electrical power at an output voltage and a method of operating such controller is presented. The controller for controlling a power converter has an input port to receive a voltage representative of the input voltage; an input voltage measuring unit to sample a measuring voltage and to determine a measurement value that is representative of the input voltage; a switch; and a diode connectable with a storage unit to provide a supply voltage for the controller during operation of the controller. The switch controls the charging of the storage unit from the voltage at the input port.

Abstract: A controller for a power converter to convert electrical power at an input voltage into electrical power at an output voltage and a method of operating such controller is presented. The controller for controlling a power converter has an input port to receive a voltage representative of the input voltage; an input voltage measuring unit to sample a measuring voltage and to determine a measurement value that is representative of the input voltage; a switch; and a diode connectable with a storage unit to provide a supply voltage for the controller during operation of the controller. The switch controls the charging of the storage unit from the voltage at the input port.

Abstract: Relax oscillation circuits have at least one comparison circuit that is structured with a flipped gate transistor and a normal MOS transistor wherein the two transistors having different threshold voltages. The relaxation oscillators are configured for charging and discharging capacitances between the threshold voltages of the flipped gate transistor and the normal MOS transistor by toggling the state of a latching circuit to control the charging and discharging of the capacitances.

Abstract: A controller for a power converter to convert electrical power at an input voltage into electrical power at an output voltage and a method of operating such controller is presented. The controller for controlling a power converter has an input port to receive a voltage representative of the input voltage; an input voltage measuring unit to sample a measuring voltage and to determine a measurement value that is representative of the input voltage; a switch; and a diode connectable with a storage unit to provide a supply voltage for the controller during operation of the controller. The switch controls the charging of the storage unit from the voltage at the input port.

Abstract: A solid state lighting SSL assembly comprises an SSL device, a capacitor, a directional conducting device and a supply switch. The capacitor is coupled in parallel with the SSL device. The directional conducting device is coupled between an output terminal of the capacitor and a supply terminal which provides a supply voltage for the SSL assembly. The directional conducting device is configured to conduct in a direction from the output terminal to the supply terminal and to isolate in the opposite direction. The supply switch is coupled between the output terminal and ground. In addition, a method for operating a solid state lighting SSL assembly is proposed.