Abstract: The present document relates to a timer which is counter-based and uses an asynchronous circuitry to improve the accuracy between the available clock cycles. In particular, a timer is presented which may comprise a first timer circuit configured to receive a clock signal and a trigger signal, wherein an edge of the trigger signal arrives after a first edge of the clock signal and before a second edge of the clock signal. The first timer circuit may be configured to determine, in a capture phase, a time offset interval for approximating a time interval between the first edge of the clock signal and the edge of the trigger signal.

Abstract: An adaptive sample and hold circuit for signal amplifier range selection is presented. The adaptive sample and hold circuit has an input for receiving an input signal and an output for providing a sample-and-hold-voltage. It also includes a sample-and-hold-capacitor to generate the sample-and-hold-voltage from the input signal, and a range detector. The range detector is adapted to identify a range of the input signal and to adjust a voltage at the sample-and-hold-capacitor based on the range of the input signal to maintain the sample-and-hold-voltage within a predetermined voltage span.

Abstract: A gate drive control circuit is provided that charges a gate voltage of a power switch transistor during a power switch transistor on-time period. During a first portion of the on-time period, the gate drive control circuit charges the gate voltage through a relatively-low resistance. During a second portion of the on-time period, the gate drive control circuit charges the gate voltage through a relatively-high resistance. Finally, during a third portion of the on-time period, the gate drive control circuit charges the gate voltage through another relatively-low resistance.

Abstract: A computer-implemented method for automatically optimizing a hybrid active noise cancellation system, the hybrid active noise cancellation system comprising a feedback filter and a feedforward filter, the method comprising optimizing the feedforward filter, thereby optimizing the hybrid active noise cancellation system, wherein optimization of the feedforward filter is dependent on the feedback filter.

Abstract: A method for determining one or more tests suitable for verifying that a circuit conforms to a specification is presented. The specification has at least one state machine. Example circuits are asynchronous circuits. The method includes analysing the specification to automatically determine the one or more tests for circuit verification.

Abstract: Driver circuits to invert an input signal and to generate an output signal based on the inverted input signal are presented. The voltage level of the logical high value of the output signal is adjustable. The driver circuit has a high side switching element coupled between a supply terminal and the output terminal of the driver circuit. The driver circuit has a low side switching element coupled between the output terminal of the driver circuit and a reference potential. The driver circuit has a regulation transistor, wherein a controlled section of the regulation transistor is coupled in series with the high side switching element and the low side switching element between the supply terminal and the reference potential. The driver circuit has a feedback circuit to regulate the output voltage by generating a regulation voltage at a control terminal of the regulation transistor.

Abstract: The present invention discloses a method and a device for performing authenticated ranging measurement by a first radio node. The method comprises receiving a first ranging signal from the second radio node; determining a first ranging parameter based on the first ranging signal; determining a range based on the first ranging parameter; and authenticating the second radio node based on the first ranging signal and authentication setup information comprising a condition on the first ranging signal.

Abstract: A power converter includes a first conversion circuit coupled to a first port, a second conversion circuit coupled to a second port, and a driver. The first conversion circuit has a first flying-capacitor coupled to a first network of switches, and two inductors both coupled to the second conversion circuit. The second conversion circuit has a second flying-capacitor coupled to a second network of switches. The driver drives the first and the second network of switches with a sequence of states having at least one of a first phase and a second phase. When the power converter operates as a step-down converter, the first phase charges the second flying-capacitor and the second phase discharges the second flying-capacitor. When the power converter operates as a step-up converter, the first phase discharges the second flying-capacitor and the second phase charges the second flying-capacitor.

Abstract: An active-clamp flyback converter is provided with improved active-clamp switch control that switches on an active-clamp switch at an active-clamp switch on-time that equals a power switch on-time minus a peak charge time for an active-clamp capacitor. The peak charge time is the duration between the switching off of the power switch transistor and when the charging current through the active-clamp capacitor falls to zero. The controller measures this peak charge time following the switching off of the power switch transistor and then applies it to the subsequent switching on of the active-clamp switch so that the active-clamp switch is switched on at the power switch on-time minus the peak charge time.

Abstract: A negative feedback circuit, comprising a node, and a control circuit coupled to the node, wherein the control circuit is configured to provide a stabilizing signal in response to a noise signal coupling to the node from a power rail, and the stabilizing signal is configured to reduce the noise signal at the node and the power rail.

Abstract: A linear regulator which has a pass device coupled between an input voltage level and an output node, a voltage divider circuit for generating a feedback voltage that depends on an output voltage at the output node, and an operational amplifier for controlling the pass device, the operational amplifier receiving the feedback voltage and a reference voltage at its inputs is presented. The operational amplifier has: an input stage that receives the feedback voltage and the reference voltage at its inputs, an amplifier stage that receives an output of the input stage at its input, and a current injection circuit for sourcing current into an intermediate node between the input stage and the amplifier stage, or sinking a current from the intermediate node. The disclosure further relates to a corresponding method of operating a linear regulator.

Abstract: A power converter and method to provide a small conversion ratio between an input and an output voltage. The power converter has an inductor coupled to the input port of the power converter. The power converter has a first stage with an input node; a first switch; a second switch; a third switch coupled to the second switch of the first stage and to a reference potential; and a flying capacitor coupled to the input node. The power converter also has a second stage with an input node; a first switch coupled to the input node of the second stage and to the output port of the power converter; a second switch coupled to the input node of the first stage; a third switch coupled to the second switch of the second stage and to the reference potential; and a flying capacitor coupled to the inductor.

Abstract: A switching power converter is provided that adaptively changes the on-time period for an auxiliary switch transistor to locate a boundary between sufficient and insufficient energy.

Abstract: A flyback converter is provided that dynamically adjusts a drain threshold voltage for a current cycle of a synchronous rectifier switch transistor based upon operating conditions in a previous cycle of the synchronous rectifier switch transistor. A differential amplifier drives a gate voltage of the synchronous rectifier switch transistor during an on-time of the current cycle so that a drain voltage of the synchronous rectifier switch transistor equals the drain threshold voltage during a regulated portion of the current cycle.

Abstract: A single-side stack up system in package is described. The system in package comprises a first interconnection having redistribution layers therein and having a top surface and a bottom surface, at least one first silicon die mounted on the top surface of the first interconnection and embedded in a first molding compound, at least one first passive component mounted on the top surface of the first interconnection side-by-side with the at least one first silicon die and embedded in a second molding compound, and solder balls mounted on the bottom surface of the first interconnection wherein the solder balls provide package output.

Abstract: It is an object of one or more embodiments of the present disclosure to provide a battery charger with a constant current control loop, for use in linear and switching chargers. Advantages include digital controls and a comparator, for decreasing charging current towards termination. The technique of the disclosure eliminates a constant voltage loop and amplifier, without increasing charging time. The technique also simplifies porting the design to another process technology node, and reduces size.

Abstract: An isolated switching power converter is presented. The isolated switching converter includes a transformer, a secondary-side switch and a secondary-side controller. The transformer has a primary winding coupled to an input, a first secondary winding coupled to a first output for providing a first output voltage, and a second secondary winding coupled to a second output for providing a second output voltage. The secondary-side switch is coupled to the second secondary winding. The secondary-side controller compares the second output voltage with a first reference voltage and generates a control signal based on the comparison to operate the secondary-side switch.

Abstract: There is presented a driver and a corresponding method for driving a p-type power switch. The driver includes a capacitor coupled to a control terminal of the power switch. The driver is configured to apply a control voltage to the control terminal and to connect the control terminal to ground to reduce the control voltage down to a target value to switch the power switch on. When identifying that the control voltage has reached the target value, the driver disconnects the control terminal from ground. The driver may be used in various circuits including switching power converters, audio amplifiers and charge-pump circuits.

Abstract: A method of communication in a Bluetooth Low Energy (BLE) network comprising a master device and a plurality of slave devices. The method has the steps of: generating a unique identifier parameter comprising a data string having a plurality of bits; assigning to each slave device a unique bit of the unique identifier parameter and a value of the bit representative of active communication; sending from the master device to each slave device a communication which includes the unique identifier parameter; at each slave device, determining the value of the bit assigned to the respective slave device; at each slave device, if the determined value of the bit is representative of active communication, processing the communication, otherwise ignoring the communication.

Abstract: A Hybrid DC-DC switching converter architecture is described. The Hybrid architecture includes a capacitive converter cascaded by an inductive converter for a boost switching converter, and an inductive converter cascaded by a capacitive converter for a buck switching converter. A capacitor at an intermediate node and a switch in the capacitive converter are removed. Reducing the switching converter by one switch and one capacitor results in a smaller implementation area. A single regulation circuit and an inductor with a smaller saturation current (Isat) are used.