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公开(公告)号：US11803202B2
公开(公告)日：2023-10-31
申请号：US17933972
申请日：2022-09-21
发明人： Marco Ruta , Antonio Conte , Michelangelo Pisasale , Agatino Massimo Maccarrone , Francesco Tomaiuolo
摘要： A voltage regulator receives an input voltage and produces a regulated output voltage. A first feedback network compares a feedback signal to a reference signal to assert/de-assert a first pulsed control signal when the reference signal is higher/lower than the feedback signal. A second feedback network compares the output voltage to a threshold signal to assert/de-assert a second control signal when the threshold signal is higher/lower than the output voltage. A charge pump is enabled if the second control signal is de-asserted and is clocked by the first pulsed control signal to produce a supply voltage higher than the input voltage. A first pass element is enabled when the second control signal is asserted and is selectively activated when the first pulsed control signal is asserted. A second pass element is selectively activated when the second control signal is de-asserted.
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公开(公告)号：US12107591B2
公开(公告)日：2024-10-01
申请号：US18054333
申请日：2022-11-10
发明人： Agatino Massimo Maccarrone , Antonino Conte , Francesco Tomaiuolo , Michelangelo Pisasale , Marco Ruta
IPC分类号： H03M1/06
CPC分类号： H03M1/0604
摘要： In accordance with an embodiment, a digital-to-analog converter (DAC) includes: a W-2W current mirror that includes a first plurality of MOS transistors having a first width, and second plurality of MOS transistors having a second width that is twice the first width, where ones of the second plurality of MOS transistors are coupled between drains of adjacent ones of the first plurality of MOS transistors; and a bulk bias generator having a plurality of output nodes coupled to corresponding bulk nodes of the first plurality of MOS transistors, wherein the plurality of output nodes are configured to provide voltages that are inversely proportional to temperature.
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公开(公告)号：US20230283271A1
公开(公告)日：2023-09-07
申请号：US18157977
申请日：2023-01-23
发明人： Antonino Conte , Marco Ruta , Michelangelo Pisasale , Agatino Massimo Maccarrone , Francesco Tomaiuolo
CPC分类号： H03K5/24 , H03K3/0315
摘要： A system a ring oscillator configured to produce a set of clock signals having the same clock period and a mutual time delay between respective clock signal edges. Comparator circuits are coupled to first and second input nodes and produce a set of comparison signals according to a respective sequence of comparison phases. A set of synchronization circuits is coupled to the ring oscillator and to the plurality of comparator circuits. The synchronization circuits allot, to each one of the comparator circuits, respective time windows for communication over respective communication lines of the comparison signals. The respective time windows are synchronized based on the clock signals. A multiplexer couples the respective communication lines to an output line to sequentially enable each of the comparator circuits to sequentially output respective comparison signals over the output line for the respective time windows thereby forming a composite comparison signal evolving over time.
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公开(公告)号：US11641191B2
公开(公告)日：2023-05-02
申请号：US17830864
申请日：2022-06-02
摘要： In an embodiment a ring oscillator circuit includes a chain of cascade-coupled inverter stages coupled between an oscillator supply voltage node and a reference voltage node, the oscillator supply voltage node configured to provide an oscillator supply voltage, a current generator circuit coupled between the oscillator supply voltage node and a system supply voltage node configured to provide a system supply voltage, the current generator circuit being configured to inject a current into the oscillator supply voltage node and a biasing circuit including a first bias control transistor and a second bias control transistor coupled in series between the reference voltage node and the oscillator supply voltage node, wherein the first bias control transistor is configured to selectively couple the reference voltage node and the oscillator supply voltage node in response to the oscillator control signal being indicative that the ring oscillator circuit is in an inactive operation state.
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5.发明申请公开(公告)号：US20230021601A1
公开(公告)日：2023-01-26
申请号：US17814442
申请日：2022-07-22
发明人： Agatino Massimo Maccarrone , Antonino Conte , Francesco Tomaiuolo , Michelangelo Pisasale , Marco Ruta
IPC分类号： G11C13/00
摘要： In an embodiment a circuit includes a plurality of memory cells, wherein each memory cell includes a phase-change memory storage element coupled in series with a respective current-modulating transistor between a supply voltage node and a reference voltage node, the current-modulating transistors being configured to receive a drive signal at a control terminal and to inject respective programming currents into the respective phase-change memory storage element as a function of the drive signal, a driver circuit configured to produce the drive signal at a common control node, wherein the common control node is coupled to the control terminals of the current-modulating transistors, the drive signal modulating the programming currents to produce SET programming current pulses and RESET programming current pulses and at least one current generator circuit configured to inject a compensation current into the common control node in response to the current-modulating transistors injecting the programming currents into the respective phase-change memory storage elements.
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公开(公告)号：US20220399880A1
公开(公告)日：2022-12-15
申请号：US17830864
申请日：2022-06-02
摘要： In an embodiment a ring oscillator circuit includes a chain of cascade-coupled inverter stages coupled between an oscillator supply voltage node and a reference voltage node, the oscillator supply voltage node configured to provide an oscillator supply voltage, a current generator circuit coupled between the oscillator supply voltage node and a system supply voltage node configured to provide a system supply voltage, the current generator circuit being configured to inject a current into the oscillator supply voltage node and a biasing circuit including a first bias control transistor and a second bias control transistor coupled in series between the reference voltage node and the oscillator supply voltage node, wherein the first bias control transistor is configured to selectively couple the reference voltage node and the oscillator supply voltage node in response to the oscillator control signal being indicative that the ring oscillator circuit is in an inactive operation state.
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