Nxp B.v.

Ravichandra Karadi

Gerard Villar Piqué

Hendrik Johannes Bergveld

Matthias Rose

Marcel Dijkstra

Jan Van Sinderen

Arnoud Pieter Van Der Wel

Melina Apostolidou

Manel Collados

Shubham Ajaykumar Khandelwal

One example discloses a voltage converter, including: a power stage configured to generate an output voltage (Vo) and an output current (Jo) based on a switching frequency (fs); a primary control loop configured to vary the switching frequency (fs) in response to an on-time value code (Ton_code) and/or a peak output current code (iLpeak_code); and a secondary control loop configured to generate the Ton_code and/or the iLpeak_code.

Voltage converter

A controller for controlling a DC-DC converter in a discontinuous conduction mode (DCM) includes an output module configured to provide a switch control signal to the DC-DC converter having an on-time and a switching frequency. The controller includes an on-time-control-module configured to receive a first compensation signal based on the output voltage of the DC-DC converter; and set the on-time of the switch control signal based on the first compensation signal. The controller also includes a frequency-control-module configured to receive a second compensation signal, wherein the second compensation signal is based on the output voltage of the DC-DC converter, and regulate the second compensation signal to a target range by setting the switching frequency of the switch control signal to one of a plurality of pre-defined discrete switching frequencies.

Controller for a power supply and a power supply

A burst-mode controller for a DC-DC converter includes an output module configured to provide a switch control signal to the DC-DC converter. The switch control signal includes a plurality of burst windows, each burst window corresponding to a period of a fixed-frequency burst clock and having a number of switching cycles. The burst-mode controller includes an on-time-control-module configured to receive a compensation signal based on the output voltage of the DC-DC converter, and set an on-time of the switching cycles of the switch control signal based on the compensation signal. The burst-mode controller also includes a burst-control-module configured to regulate the on-time of the switching cycles of the switch control signal by setting the number of switching cycles for each burst window of the switch control signal.

A method for multi-phase high conversion ratio Switched Capacitor Power Conversion includes sequentially forming one of four subcircuits during a respective timing phase, wherein each subcircuit comprises at most three capacitors. Conversion between an input voltage of an input and an output voltage of an output occurs by sequentially connecting for each respective timing phase, one of the input, the output, a ground, a top plate of a first one of the three capacitors and a bottom plate of the first one of the three capacitors to one of a top plate of a second one of the three capacitors and a bottom plate of the second one of the three capacitors.

Multi-phase high conversion ratio switched capacitor power converter

An example embodiment is directed to a voltage regulation circuit. The voltage regulation circuit comprises a first control loop and a second control loop that are separately activatable. The first control loop regulates an output current provided to an output terminal, and the second control loop regulates an output voltage provided to the output terminal. The voltage regulation circuit further includes a mode switching circuit that switches operation between the first and the second control loops by separately activating one of the first and second control loops and deactivating the other in response to a fault condition at the output terminal at which a regulated load is connectable.

Voltage regulation circuits with separately activated control loops

A switched capacitor power converter comprising a set of at least two capacitors; an input for receiving an input voltage an output for outputting an output voltage different to the input voltage, a plurality of switches configured to arrange the set of capacitors into a plurality of different subcircuit arrangements between the input and output for converting the input voltage to the output voltage; wherein the set of capacitors is configured to adopt a first subcircuit arrangement in which the set is connected to the input, a second subcircuit arrangement different to the first subcircuit arrangement and a third subcircuit arrangement, different to the first and second arrangements, in which the set is connected to the output, the subcircuit arrangements configured such that each of the capacitors in the set acts as a floating capacitor.

Switched capacitor power converter

A system and method for transmitting a baseband real signal with a non-constant envelope using a polar transmitter involves decomposing a baseband real signal into a non-constant envelope signal of the baseband real signal and a sign signal of the baseband real signal, where the sign signal restores zero crossing regions of the non-constant envelope signal, modulating a carrier signal with the sign signal of the baseband real signal to generate a modulated signal, converting the non-constant envelope signal of the baseband real signal into a voltage signal using a voltage controlled supply regulator, amplifying the modulated signal into an amplified signal based on the voltage signal, and transmitting the amplified signal to an external wireless device.

Growing community of inventors

Eindhoven, Netherlands

Ravichandra Karadi