Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes a voltage reduction circuit cell that includes a first capacitor, a second capacitor, a switching circuit, and a hold capacitor. The switching circuit includes a plurality of switching devices that are coupled to the first and the second capacitors for delivering power from an input terminal to an output terminal. The plurality of switching devices includes at least two switching devices that are coupled to ground. The voltage reduction circuit cell also includes a controller for operating the switching circuit in a plurality of operational modes to deliver an output power signal at a desired voltage level.

Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a forward converter coupled to the input and output terminals. The forward converter includes a transformer, and a primary side regulation circuit coupled to a primary side of the transformer. The primary side regulation circuit includes a switching device coupled to the primary side, a current sense circuit configured to sense a current level on the primary side, and a controller configured to generate a pulse-width modulated control signal delivered to the switching device as a function of the sensed current level to regulate the transformer to deliver the output power signal at a desired voltage level.

Abstract: An electrical circuit for providing electrical power for use in powering electronic devices is described herein. The electrical circuit includes a primary power circuit and a secondary power circuit. The primary power circuit receives an alternating current (AC) input power signal from an electrical power source and generates an intermediate direct current (DC) power signal. The intermediate DC power signal is generated at a first voltage level that is less than a voltage level of the AC input power signal. The secondary power circuit receives the intermediate DC power signal from the primary power circuit and delivers an output DC power signal to an electronic device. The output DC power signal is delivered at an output voltage level that is less than the first voltage level of the intermediate DC power signal.

Abstract: An electrical circuit for providing electrical power for use in powering electronic devices is described herein. The electrical circuit includes a primary power circuit and a secondary power circuit. The primary power circuit receives an alternating current (AC) input power signal from an electrical power source and generates an intermediate direct current (DC) power signal. The intermediate DC power signal is generated at a first voltage level that is less than a voltage level of the AC input power signal. The secondary power circuit receives the intermediate DC power signal from the primary power circuit and delivers an output DC power signal to an electronic device. The output DC power signal is delivered at an output voltage level that is less than the first voltage level of the intermediate DC power signal.

Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a plurality of voltage reduction circuit cells coupled between the input terminal and the output terminal. Each of the voltage reduction circuit cells includes a pair of flyback capacitors, a switching circuit, and a hold capacitor. The switching device is configured to operate the corresponding voltage reduction circuit cell at a charging phase and at a discharging phase. The plurality of voltage reduction circuit cells are configured to deliver the output power signal having a voltage level that is less than the voltage level of the input power signal.

Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes a voltage reduction circuit cell that includes a first capacitor, a second capacitor, a switching circuit, and a hold capacitor. The switching circuit includes a plurality of switching devices that are coupled to the first and the second capacitors for delivering power from an input terminal to an output terminal. The plurality of switching devices includes at least two switching devices that are coupled to ground. The voltage reduction circuit cell also includes a controller for operating the switching circuit in a plurality of operational modes to deliver an output power signal at a desired voltage level.

Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a forward converter coupled to the input and output terminals. The forward converter includes a transformer, and a primary side regulation circuit coupled to a primary side of the transformer. The primary side regulation circuit includes a switching device coupled to the primary side, a current sense circuit configured to sense a current level on the primary side, and a controller configured to generate a pulse-width modulated control signal delivered to the switching device as a function of the sensed current level to regulate the transformer to deliver the output power signal at a desired voltage level.

Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes a voltage reduction circuit cell that includes a first capacitor, a second capacitor, a switching circuit, and a hold capacitor. The switching circuit includes a plurality of switching devices that are coupled to the first and the second capacitors for delivering power from an input terminal to an output terminal. The plurality of switching devices includes at least two switching devices that are coupled to ground. The voltage reduction circuit cell also includes a controller for operating the switching circuit in a plurality of operational modes to deliver an output power signal at a desired voltage level.

Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a plurality of voltage reduction circuit cells coupled between the input terminal and the output terminal. Each of the voltage reduction circuit cells includes a pair of flyback capacitors, a switching circuit, and a hold capacitor. The switching device is configured to operate the corresponding voltage reduction circuit cell at a charging phase and at a discharging phase. The plurality of voltage reduction circuit cells are configured to deliver the output power signal having a voltage level that is less than the voltage level of the input power signal.

Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a forward converter coupled to the input and output terminals. The forward converter includes a transformer, and a primary side regulation circuit coupled to a primary side of the transformer. The primary side regulation circuit includes a switching device coupled to the primary side, a current sense circuit configured to sense a current level on the primary side, and a controller configured to generate a pulse-width modulated control signal delivered to the switching device as a function of the sensed current level to regulate the transformer to deliver the output power signal at a desired voltage level.

Abstract: An electrical circuit for providing electrical power for use in powering electronic devices is described herein. The electrical circuit includes a primary power circuit and a secondary power circuit. The primary power circuit receives an alternating current (AC) input power signal from an electrical power source and generates an intermediate direct current (DC) power signal. The intermediate DC power signal is generated at a first voltage level that is less than a voltage level of the AC input power signal. The secondary power circuit receives the intermediate DC power signal from the primary power circuit and delivers an output DC power signal to an electronic device. The output DC power signal is delivered at an output voltage level that is less than the first voltage level of the intermediate DC power signal.

Abstract: A sigma-delta converter may include an input node, a switched capacitor input stage integrating a difference signal between an input signal from the input node and a feedback signal representing an output signal, and a switched capacitor adder coupled downstream from the switched capacitor input stage and generating a sum signal based upon the input signal with a signal generated by the switched capacitor input stage. The sigma-delta converter may include a switched capacitor output stage amplifying the sum signal and generating an analog amplified signal, a quantization stage coupled in cascade to the switched capacitor output stage and generating the output signal as a digital replica of the analog amplified signal, and a circuit generating the feedback signal as an analog replica of the output signal.

Abstract: A DC-DC converter is disclosed having an input configured to receive an input signal and an output configured to present an output signal at a different voltage than the input signal. The converter also includes at least one inductor and at least one capacitor. Two or more transistors fingers are provided such that at least one of the two or more transistor fingers comprises two or more switching transistors, each of which has an input, an output, a control input. An activation controller connect to at least one of the two or more switching transistors, the activation controller configured to control whether the at least one of the two or more switching transistors is active or non-active. Also disclosed is a buck-boost converter with numerous controlled switches that establish the converter in either buck-boost mode, buck mode or boost mode.

Abstract: There is described a continuous time filter of at least a second (or higher) order, comprising one or more first order filter stages of a first type, the or each first order filter stage of the first type comprising a reactive component and an impedance dependent on the difference between the input and output voltages of the filter stage. The filter includes at least one first order filter stage of a second type, the or each second order filter of the second type comprising a reactive component and an impedance dependent on the sum of the input and output voltages of the filter stage. The filter includes a transfer function of the continuous time filter that is obtained comprising complex poles.

Abstract: A sigma-delta converter may include an input node, a switched capacitor input stage integrating a difference signal between an input signal from the input node and a feedback signal representing an output signal, and a switched capacitor adder coupled downstream from the switched capacitor input stage and generating a sum signal based upon the input signal with a signal generated by the switched capacitor input stage. The sigma-delta converter may include a switched capacitor output stage amplifying the sum signal and generating an analog amplified signal, a quantization stage coupled in cascade to the switched capacitor output stage and generating the output signal as a digital replica of the analog amplified signal, and a circuit generating the feedback signal as an analog replica of the output signal.

Abstract: A sigma-delta converter may include an input node, a switched capacitor input stage integrating a difference signal between an input signal from the input node and a feedback signal representing an output signal, and a switched capacitor adder coupled downstream from the switched capacitor input stage and generating a sum signal based upon the input signal with a signal generated by the switched capacitor input stage. The sigma-delta converter may include a switched capacitor output stage amplifying the sum signal and generating an analog amplified signal, a quantization stage coupled in cascade to the switched capacitor output stage and generating the output signal as a digital replica of the analog amplified signal, and a circuit generating the feedback signal as an analog replica of the output signal.

Abstract: A cascaded sigma-delta modulator has several modulator loops that have one or two sets of integrators, summers, and scalers, and a quantizer that generates a loop output. Input muxes to each loop select either an overall input or the loop output from a prior loop, allowing the modulator loops to be cascaded in series or to operate separately. Filter-configuring muxes after each modulator loop select either that loop's output or a loop output from any prior loop, or a zero. Each filter-configuring mux drives an input to a modified CIC filter. The modified CIC filter has an initial delay stage that receives the first filter-configuring mux output, and successive integrator stages that each receives a successive filter-configuring mux output. The modified CIC filter is a combination of a digital transform filter and a Cascaded-Integrator-Comb (CIC) filter. Modulator loops are powered down for lower-performance configurations or cascaded together for higher-performance configurations.

Abstract: A DC-DC converter is disclosed having an input configured to receive an input signal and an output configured to present an output signal at a different voltage than the input signal. The converter also includes at least one inductor and at least one capacitor. Two or more transistors fingers are provided such that at least one of the two or more transistor fingers comprises two or more switching transistors, each of which has an input, an output, a control input. An activation controller connect to at least one of the two or more switching transistors, the activation controller to configured to control whether the at least one of the two or more switching transistors is active or non-active. Also disclosed is a buck-boost converter with numerous controlled switches that establish the converter in either buck-boost mode, buck mode or boost mode.

Abstract: A sigma-delta converter may include an input node, a switched capacitor input stage integrating a difference signal between an input signal from the input node and a feedback signal representing an output signal, and a switched capacitor adder coupled downstream from the switched capacitor input stage and generating a sum signal based upon the input signal with a signal generated by the switched capacitor input stage. The sigma-delta converter may include a switched capacitor output stage amplifying the sum signal and generating an analog amplified signal, a quantization stage coupled in cascade to the switched capacitor output stage and generating the output signal as a digital replica of the analog amplified signal, and a circuit generating the feedback signal as an analog replica of the output signal.

Abstract: In an integrated circuit having a number of circuit units on a single semiconductor chip, particularly in a system-on-chip integrated circuit including an integrated transceiver, interference between the circuit units is suppressed using on-chip resonant elements. Each resonant element has at least one on-chip capacitor and at least one on-chip conductive line constituting an inductance. The capacitance-inductance combinations are arranged to be resonant at one or more frequencies at which radio frequency energy is generated by the circuit units. The capacitive part of each series resonant combination is formed as a plurality of capacitor elements forming in an array to minimise self-inductance. Also disclosed is a filtering arrangement in which each circuit unit is individually supplied from the tap of a series resistive-capacitance combination to provide low-pass filtering.