Patent application number | Description | Published |
20130113562 | CURRENT REUSE ELECTRONIC DEVICE BASED ON MAGNETIC COUPLING COMPONENTS - A current reuse device including a first stage provided with a first input for a first input signal and a first output for a first output signal; a second stage comprising a second input for a second input signal and a direct current terminal operating as a ground terminal for alternate signals; a first inductor connected to a first output and to the direct current terminal so that the first and second stages share a direct current; a second inductor reciprocally coupled to the first inductor and connected to the second input in order to generate the second input signal as a function of the first output signal. | 05-09-2013 |
20130272037 | POWER SUPPLY CIRCUIT FOR REMOTELY TURNING-ON ELECTRICAL APPLIANCES - A power supply circuit for an electrical appliance, including a turning-on stage configured for determining a transition from a turned-off state, in which the power supply circuit is off and does not supply electric power, to a turned-on state of the power supply circuit. The turning-on stage includes a transducer of the remote-control type configured for triggering the transition in response to the reception of a wireless signal. In some embodiments, operating power is transmitted from a remote controller to a control circuit of the electronic equipment, such that the electronic equipment can be turned on remotely but draws zero standby power. | 10-17-2013 |
20140292419 | POWER OSCILLATOR APPARATUS WITH TRANSFORMER-BASED POWER COMBINING - An oscillator circuit includes first and second oscillators arranged in a series configuration between a supply voltage node and a reference voltage node. The first and second oscillators are configured to receive a synchronizing signal for controlling synchronization in frequency and phase. An electromagnetic network provided to couple the first and the second oscillators includes a transformer with a primary circuit and a secondary circuit. The primary circuit includes a first portion coupled to the first oscillator and second portion coupled to the second oscillator. The first and second portions are connected by a circuit element for reuse of current between the first and second oscillators. The oscillator circuit is fabricated as an integrated circuit device wherein the electromagnetic network is formed in metallization layers of the device. The secondary circuit generates an output power combining power provided from the first and second portions of the primary circuit. | 10-02-2014 |
20150180528 | POWER OSCILLATOR APPARATUS WITH TRANSFORMER-BASED POWER COMBINING FOR GALVANICALLY-ISOLATED BIDIRECTIONAL DATA COMMUNICATION AND POWER TRANSFER - An apparatus includes first and second oscillator circuits. A transformer has a primary winding coupling the first oscillator circuit to the second oscillator circuit and a secondary winding. A first outgoing communications circuit is coupled to the second oscillator circuit and drives an amplitude modulated data signal thereto. A first incoming communications circuit is coupled to the primary winding of the transformer. A second outgoing communications circuit is coupled to the secondary winding drives an amplitude modulated data signal thereto. A second incoming communications circuit is coupled to the secondary winding. The secondary winding is magnetically coupled with the primary winding so the secondary winding receives an output power and an incoming data transmission based upon the amplitude modulated data signal, and so the primary winding receives an incoming high speed data transmission based upon the amplitude modulated data signal. | 06-25-2015 |
20160072435 | POWER OSCILLATOR APPARATUS WITH TRANSFORMER-BASED POWER COMBINING - An oscillator circuit includes first and second oscillators arranged in a series configuration between a supply voltage node and a reference voltage node. The first and second oscillators are configured to receive a synchronizing signal for controlling synchronization in frequency and phase. An electromagnetic network provided to couple the first and the second oscillators includes a transformer with a primary circuit and a secondary circuit. The primary circuit includes a first portion coupled to the first oscillator and second portion coupled to the second oscillator. The first and second portions are connected by a circuit element for reuse of current between the first and second oscillators. The oscillator circuit is fabricated as an integrated circuit device wherein the electromagnetic network is formed in metallization layers of the device. The secondary circuit generates an output power combining power provided from the first and second portions of the primary circuit. | 03-10-2016 |
20160094378 | SYSTEM FOR GENERATING A CALIBRATION SIGNAL, RELATED TRANSCEIVER AND METHOD - A calibration signal is generated from a modulating signal having a first frequency and a carrier signal having a second frequency. A single-sideband mixer modulates the modulating signal on the carrier signal. At least two frequency dividers by two connected in cascade receive the modulating signal modulated on the carrier signal and generate an output of the calibration signal. | 03-31-2016 |
Patent application number | Description | Published |
20090033467 | RF IDENTIFICATION DEVICE WITH NEAR-FIELD-COUPLED ANTENNA - An embodiment of a RF identification device is formed by a tag and by a reader. The tag is formed by a processing circuit and a first antenna, which has the function both of transmitting and of receiving data. The reader is formed by a control circuit and by a second antenna, which has the function both of transmitting and of receiving data. The processing circuit is formed by a resonance capacitor, a modulator, a rectifier circuit, a charge-pump circuit and a detection circuit. The antenna of the tag and the processing circuit are integrated in a single structure in completely monolithic form. The first antenna has terminals connected to the input of the rectifier circuit, the output of which is connected to the charge-pump circuit. The charge-pump circuit has an output connected to the detection circuit. | 02-05-2009 |
20100109719 | PRESCALING STAGE FOR HIGH FREQUENCY APPLICATIONS - A prescaling stage includes bistable circuit in turn including respective master and slave portions inserted between a first and a second voltage reference and feedback connected to each other. Each portion is provided with at least one differential stage supplied by the first voltage reference and connected, by a transistor stage, to the second voltage reference, as well as a differential pair of cross-coupled transistors, supplied by output terminals of the differential stage and connected, by the transistor stage, to the second voltage reference. Advantageously, each master and slave portion includes a degeneration capacitance inserted in correspondence with respective terminals of the transistors of the differential pair. | 05-06-2010 |
20100109789 | Radio frequency amplifier with digital amplitude modulation and method for controlling the delivering of power - A digital amplitude modulator is configured to modulate the amplitude of an input carrier signal based on input digital data and generate a corresponding output signal. The digital amplitude modulator includes a first variable gain amplifier for receiving the input carrier signal and generating a corresponding first amplified carrier signal, a second variable gain amplifier for receiving the input digital data and generating corresponding digital amplitude control data and a plurality of selectively activatable amplifier stages. Each amplifier stage receives a replica of the first amplified carrier signal and generates a corresponding second amplified carrier signal when activated. The output signal corresponds to a combination of the second amplified carrier signals generated by the activated amplifier stages. The digital amplitude modulator further includes a driving circuit configured to receive the digital amplitude control data and activate a corresponding set of selected amplifier stages based on the digital amplitude control data, and a power controller unit configured to adjust the power delivered by the digital amplitude modulator by setting a first amplifying gain of the first variable gain amplifier and a second amplifying gain of the second variable gain amplifier. | 05-06-2010 |
20110115525 | DEVICE FOR DETECTING THE PEAK VALUE OF A SIGNAL - A device for detecting the peak value of a signal with crest factor not known a priori includes a pair of peak detectors, each of which includes a rectifier element and a discharge-current generator and generates a respective output signal that is a function of the ratio between a physical dimension of the rectifier element and the intensity of discharge current produced by the generator. The ratio is different for the two detectors, and a combination network combines the output signals of the two peak detectors with one another and produces a combined signal indicating the peak value sought with high accuracy. | 05-19-2011 |
20110135031 | NOVEL PULSE GENERATOR FOR ULTRA-WIDE-BAND MODULATING SYSTEMS AND MODULATING SYSTEMS USING IT - A pulse generator circuit is provided. The pulse generator circuit has an input adapted to receive an input electrical quantity and an output at which an output electrical quantity is made available. A transfer characteristic establishes a relationship between said input and said output electrical quantities. The pulse generator circuit is adapted to provide said output electrical quantity in the form of pulses having a predetermined shape, suitable to be used for UWB transmission. The transfer characteristic has substantially a same shape as that of said pulses. Moreover, a UWB modulating system exploiting the novel pulse generator is proposed. | 06-09-2011 |
20110230155 | MILLIMETER WAVE OSCILLATOR - An oscillator is described, comprising at least one transistor having a first terminal connected to a power supply voltage. The oscillator comprises at least one inductive element connected to a second terminal of the transistor and to a bias voltage and at least one capacitive element coupled between a third terminal of the transistor and ground. The oscillator further comprises means to collect the output signal of said oscillator on the second terminal of the transistor. The oscillator is of the millimeter wave type, i.e., both the inductive element and the capacitive element are sized such that the oscillation frequency is between 30 and 300 gigahertz. | 09-22-2011 |
20120168520 | RF IDENTIFICATION DEVICE WITH NEAR-FIELD-COUPLED ANTENNA - An embodiment of a RF identification device is formed by a tag and by a reader. The tag is formed by a processing circuit and a first antenna, which has the function both of transmitting and of receiving data. The reader is formed by a control circuit and by a second antenna, which has the function both of transmitting and of receiving data. The processing circuit is formed by a resonance capacitor, a modulator, a rectifier circuit, a charge-pump circuit and a detection circuit. The antenna of the tag and the processing circuit are integrated in a single structure in completely monolithic form. The first antenna has terminals connected to the input of the rectifier circuit, the output of which is connected to the charge-pump circuit. The charge-pump circuit has an output connected to the detection circuit. | 07-05-2012 |
20120171953 | RF IDENTIFICATION DEVICE WITH NEAR-FIELD-COUPLED ANTENNA - An embodiment of a RF identification device is formed by a tag and by a reader. The tag is formed by a processing circuit and a first antenna, which has the function both of transmitting and of receiving data. The reader is formed by a control circuit and by a second antenna, which has the function both of transmitting and of receiving data. The processing circuit is formed by a resonance capacitor, a modulator, a rectifier circuit, a charge-pump circuit and a detection circuit. The antenna of the tag and the processing circuit are integrated in a single structure in completely monolithic form. The first antenna has terminals connected to the input of the rectifier circuit, the output of which is connected to the charge-pump circuit. The charge-pump circuit has an output connected to the detection circuit. | 07-05-2012 |
Patent application number | Description | Published |
20110133842 | RADIO-FREQUENCY AMPLIFIER - A radio-frequency amplifier includes a common gate amplification stage configured to be biased in a saturation condition with a first current and configured to receive an input signal as a gate-source voltage and to generate an output voltage as an amplified replica of the input signal. A feedback transistor is configured to be biased in a saturation condition with a second current and coupled to the common gate amplification stage so as to have a gate-drain voltage corresponding to a difference between the output voltage and the input signal. | 06-09-2011 |
20120256290 | MICROSTRUCTURE DEVICE COMPRISING A FACE TO FACE ELECTROMAGNETIC NEAR FIELD COUPLING BETWEEN STACKED DEVICE PORTIONS AND METHOD OF FORMING THE DEVICE - A galvanic-isolated coupling of circuit portions is accomplished on the basis of a stacked chip configuration. The semiconductor chips thus can be fabricated on the basis of any appropriate process technology, thereby incorporating one or more coupling elements, such as primary or secondary coils of a micro transformer, wherein the final characteristics of the micro transformer are adjusted during the wafer bond process. | 10-11-2012 |
20130251076 | OSCILLATOR - An oscillator is described, comprising at least one transistor having a first terminal connected to a power supply voltage. The oscillator comprises at least one inductive element connected to a second terminal of the transistor and to a bias voltage and at least one capacitive element coupled between a third terminal of the transistor and ground. The oscillator further comprises means to collect the output signal of the oscillator on the second terminal of the transistor. The oscillator is of the millimeter wave type, i.e., both the inductive element and the capacitive element are sized such that the oscillation frequency is between 30 and 300 gigahertz. | 09-26-2013 |
20160094379 | SYSTEM FOR THE CORRECTION OF AMPLITUDE AND PHASE ERRORS OF IN-QUADRATURE SIGNALS, CORRESPONDING RECEIVER AND METHOD - A system may be for the correction of phase and amplitude errors. The system may receive a first input signal and a second input signal and supply a first output signal and a second output signal. The system may include two adders that supply the first and second output signals, respectively. The two adders may be configured for computing a sum of the first and second input signals, and multiplying the weighted sum by a third coefficient. Moreover, the first coefficient or the second coefficient of the first adder may be variable to enable correction of the phase errors, and the third coefficient of the second adder may be variable to enable correction of the amplitude errors. | 03-31-2016 |