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公开(公告)号：US11742804B2
公开(公告)日：2023-08-29
申请号：US17852857
申请日：2022-06-29
申请人： Qorvo US, Inc.
发明人： Nadim Khlat , Michael R. Kay , Michael J. Murphy
CPC分类号： H03F3/189 , H02M3/07 , H03F2200/102 , H03F2200/105
摘要： A switch controller for charge pump tracker circuitry is disclosed. The switch controller includes first monitoring circuitry configured to monitor a first voltage across a first flying capacitor during a first discharging phase. A second monitoring circuitry is configured to monitor a second voltage across a second flying capacitor during a second discharging phase. Further included is boost logic circuitry in communication with the first monitoring circuitry and the second monitoring circuitry, wherein the boost logic circuitry is configured in response to control a first switch network coupled to the first flying capacitor and a second switch network coupled to the second flying capacitor so that the first discharging phase and the second discharging phase alternate in an interleaved mode, and so that the first discharging phase and the second discharging phase are in phase during a parallel boost mode.
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2.发明授权公开(公告)号：US11575317B2
公开(公告)日：2023-02-07
申请号：US16703951
申请日：2019-12-05
申请人： Qorvo US, Inc.
发明人： Michael J. Murphy , Michael R. Kay
摘要： A switching regulator system having a switching regulator configured to generate regulated voltage pulses at a switching output in response to a setpoint of an output voltage at a setpoint input and feedback of the output voltage at a feedback input is disclosed. A power inductor is coupled between the switching output and a filtered output, and a filter capacitor is coupled between the filtered output and a fixed voltage node. A transistor having a control input is coupled between the filtered output and the fixed voltage node. A transition comparator has a first comparator input coupled to the setpoint input, a second comparator input coupled to the feedback input, and a comparator output coupled to the control input, wherein the transition comparator is configured to monitor for a setpoint voltage dropping below a feedback voltage and in response turn on the transistor to discharge the filter capacitor.
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公开(公告)号：US11539289B2
公开(公告)日：2022-12-27
申请号：US16807575
申请日：2020-03-03
申请人： Qorvo US, Inc.
摘要： A multi-level charge pump (MCP) circuit is provided. The MCP circuit includes a multi-level voltage circuit configured to receive a supply voltage and generate a low-frequency voltage. The multi-level voltage circuit includes a first switch path, a second switch path, and a third switch path each having a respective on-resistance and coupled in parallel between an input node and an output node. In a non-limiting example, the multi-level voltage circuit is configured to activate the first switch path and at least one of the second switch path and the third switch path when the multi-level voltage circuit generates the low-frequency voltage that equals the supply voltage. By activating at least two of the three switch paths to generate the low-frequency voltage, it may be possible to reduce an equivalent resistance of the multi-level voltage circuit, thus helping to improve efficiency and reduce power loss of the MCP circuit.
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公开(公告)号：US20220329217A1
公开(公告)日：2022-10-13
申请号：US17852857
申请日：2022-06-29
申请人： Qorvo US, Inc.
发明人： Nadim Khlat , Michael R. Kay , Michael J. Murphy
摘要： A switch controller for charge pump tracker circuitry is disclosed. The switch controller includes first monitoring circuitry configured to monitor a first voltage across a first flying capacitor during a first discharging phase. A second monitoring circuitry is configured to monitor a second voltage across a second flying capacitor during a second discharging phase. Further included is boost logic circuitry in communication with the first monitoring circuitry and the second monitoring circuitry, wherein the boost logic circuitry is configured in response to control a first switch network coupled to the first flying capacitor and a second switch network coupled to the second flying capacitor so that the first discharging phase and the second discharging phase alternate in an interleaved mode, and so that the first discharging phase and the second discharging phase are in phase during a parallel boost mode.
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公开(公告)号：US11387789B2
公开(公告)日：2022-07-12
申请号：US16831935
申请日：2020-03-27
申请人： Qorvo US, Inc.
发明人： Nadim Khlat , Michael R. Kay , Michael J. Murphy
摘要： Charge pump tracker circuitry is disclosed having a first switch network configured to couple a first flying capacitor between a voltage input terminal and a ground terminal during a first charging phase and couple the first flying capacitor between the voltage input terminal and a pump output terminal during a first discharging phase. A second switch network is configured to couple a second flying capacitor between the voltage input terminal and the ground terminal during a second charging phase and couple the second flying capacitor between the voltage input terminal and the pump output terminal during a second discharging phase. A switch controller is configured to monitor first and second voltages across the first and second flying capacitors, respectively, during the first and second discharging phases and in response to control the first and second switch networks so that the first the second discharging phases alternate in an interleaved mode.
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公开(公告)号：US10097145B1
公开(公告)日：2018-10-09
申请号：US15837496
申请日：2017-12-11
申请人： Qorvo US, Inc.
摘要： A multi-mode power management circuit is provided. The multi-mode power management circuit includes a second generation (2G) amplifier circuit(s) configured to amplify a 2G radio frequency (RF) signal for transmission in a 2G RF band(s). The multi-mode power management circuit includes a pair of tracker circuitries coupled to the 2G amplifier circuit. Each tracker circuitry includes a charge pump circuitry configured to generate a voltage and a current. When the 2G amplifier circuit amplifies the 2G RF signal for transmission in the 2G RF band(s), both charge pump circuitries are controlled to provide two currents to the 2G amplifier circuit. As a result, the 2G amplifier circuit is able to amplify the 2G RF signal to a higher power corresponding to a sum of the two currents for transmission in the 2G RF band(s).
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公开(公告)号：US20220407420A1
公开(公告)日：2022-12-22
申请号：US17841723
申请日：2022-06-16
申请人： Qorvo US, Inc.
摘要： The present disclosure discloses a direct current (DC)-DC boost converter, which includes a battery terminal providing a battery voltage, a charge pump coupled between the battery terminal and an interior node, and a power inductor coupled between the interior node and a power supply terminal that provides a power voltage to a radio frequency transceiver. The charge pump is configured to provide an interior voltage at the interior node based on the battery voltage. Herein, the interior voltage toggles between the battery voltage and two times the battery voltage. The charge pump includes a first switch coupled between the battery terminal and the interior node, a second switch coupled between the battery terminal and a connecting node, a third switch coupled between the connecting node and ground, and a flying capacitor coupled between the interior node and the connecting node of the second switch and the third switch.
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公开(公告)号：US10790817B2
公开(公告)日：2020-09-29
申请号：US16409294
申请日：2019-05-10
申请人： Qorvo US, Inc.
发明人： Michael J. Murphy , Michael R. Kay , Nadim Khlat
IPC分类号： H03K17/687 , H03F3/20 , H02M3/07
摘要： A power switch with a bootstrap driver for continuous time operation is disclosed. In an exemplary aspect, the power switch selectively connects power management circuitry to one or more power amplifier stages in a radio frequency (RF) front end. The bootstrap driver provides a constant gate to source voltage during an enabled state of the power switch such that a switching element can remain closed with near-constant closed switch resistance in the presence of varying signals (e.g., varying power signals) passing through the power switch. The bootstrap driver can use a variable clock frequency to quickly close the power switch and resistor-capacitor (RC) filtering to reduce noise contribution to the signal path through the power switch. In some examples, a constant voltage reference provides battery independent voltage control of the gate to source voltage of the power switch.
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公开(公告)号：US20200259490A1
公开(公告)日：2020-08-13
申请号：US16409294
申请日：2019-05-10
申请人： Qorvo US, Inc.
发明人： Michael J. Murphy , Michael R. Kay , Nadim Khlat
IPC分类号： H03K17/687 , H03F3/20
摘要： A power switch with a bootstrap driver for continuous time operation is disclosed. In an exemplary aspect, the power switch selectively connects power management circuitry to one or more power amplifier stages in a radio frequency (RF) front end. The bootstrap driver provides a constant gate to source voltage during an enabled state of the power switch such that a switching element can remain closed with near-constant closed switch resistance in the presence of varying signals (e.g., varying power signals) passing through the power switch. The bootstrap driver can use a variable clock frequency to quickly close the power switch and resistor-capacitor (RC) filtering to reduce noise contribution to the signal path through the power switch. In some examples, a constant voltage reference provides battery independent voltage control of the gate to source voltage of the power switch.
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公开(公告)号：US11876488B2
公开(公告)日：2024-01-16
申请号：US17841723
申请日：2022-06-16
申请人： Qorvo US, Inc.
CPC分类号： H03F1/0227 , H02J7/02 , H02M3/07 , H03F3/245 , H02J2207/20 , H03F2200/451
摘要： The present disclosure discloses a direct current (DC)-DC boost converter, which includes a battery terminal providing a battery voltage, a charge pump coupled between the battery terminal and an interior node, and a power inductor coupled between the interior node and a power supply terminal that provides a power voltage to a radio frequency transceiver. The charge pump is configured to provide an interior voltage at the interior node based on the battery voltage. Herein, the interior voltage toggles between the battery voltage and two times the battery voltage. The charge pump includes a first switch coupled between the battery terminal and the interior node, a second switch coupled between the battery terminal and a connecting node, a third switch coupled between the connecting node and ground, and a flying capacitor coupled between the interior node and the connecting node of the second switch and the third switch.
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