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公开(公告)号：US20220190724A1
公开(公告)日：2022-06-16
申请号：US17123417
申请日：2020-12-16
发明人： Holger Petersen
IPC分类号： H02M3/158
摘要： A power converter includes two flying capacitors coupled to a network of switches, two inductors and a driver. The network of switches has a first switch to couple the first flying capacitor to a first port, a first ground switch to couple the first flying capacitor to ground, a second switch to couple the second flying capacitor to the first port, a second ground switch to couple the second flying capacitor to ground. The driver drives the network of switches with a sequence of states comprising a first state. In the first state the first port is coupled to a second port via a first path and a second path. The first path includes the first switch, the first flying capacitor and the first inductor. The second path includes the second switch, the second flying capacitor and the second inductor; the ground port is decoupled from the second port.
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公开(公告)号：US11349391B1
公开(公告)日：2022-05-31
申请号：US17106837
申请日：2020-11-30
发明人： Mark Mercer , Karthik Jayaraman
摘要： The present document relates to power converters with multiple feedback loops. The present document relates to a power converter with at least two feedback loops. The power converter may include a first error amplifier configured to generate a first error signal based on a first reference signal and a first feedback signal. The power converter may include a second error amplifier configured to generate a second error signal based on a second reference signal and a second feedback signal. The power converter may include a selector circuit configured to generate a selection signal by selecting the first error signal or the second error signal. The power converter may include a first clamp circuit configured to limit the first error signal to a first threshold value. The power converter may include a first threshold value generator circuit configured to generate the first threshold value dependent on the first error signal.
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公开(公告)号：US11239836B2
公开(公告)日：2022-02-01
申请号：US16854315
申请日：2020-04-21
发明人： Jerome Sanchez , Fabio Rigoni , Jan Grabinski , Ali Zahabi
IPC分类号： H03K17/06 , H02M3/07 , H03K17/082 , H03K17/687 , H03K17/08
摘要： A circuit and a method for providing a switchable current linkage between a first terminal and a second terminal is presented. The circuit has a transistor switch and a charge pump circuit. An output node of the charge pump circuit is coupled to a control terminal of the transistor device, and an input node of the charge pump circuit is coupled to a predetermined voltage. The charge pump generates a boosted voltage. A drive circuit provides feedback control for the current flowing through the transistor. The drive circuit also controls the voltage magnitude at the input node of the charge pump circuit in accordance with the feedback control or to control a magnitude of a voltage at the control terminal of the transistor device in accordance with the feedback control.
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公开(公告)号：US11228244B2
公开(公告)日：2022-01-18
申请号：US16581863
申请日：2019-09-25
发明人： Mark Childs
摘要： It is an object of one or more embodiments of the present disclosure to provide a Multiple-Inductor Multiple-Output (MIMO) switching converter to supply several different output voltages. The combination of this MIMO converter with a booster circuit supplies one or more individual cores with current that bypasses the parasitic network. The booster circuit has a wider bandwidth or a faster response when compared to the main MIMO switching converter. The MIMO booster circuit can supply a number of cores with only a single set of shared inductors. The main advantages include a lower component count and a reduced printed circuit board footprint to support multiple cores in a Multiple-Inductor Multiple-Output. The present disclosure makes use of the low duty-cycle of the power peaks and the low statistical likelihood of these peaks occurring for all cores simultaneously.
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公开(公告)号：US20210399636A1
公开(公告)日：2021-12-23
申请号：US17462985
申请日：2021-08-31
摘要： A switching power converter is provided with a one-shot bias boosting circuit that responds to a premature trip point to boost the performance of a linear comparator in a pulse width modulator. In a sense-amplifier based implementation of the comparator, a clock-edge generator boosts the performance of the sense amplifier at the premature trip point.
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公开(公告)号：US20210391787A1
公开(公告)日：2021-12-16
申请号：US16900678
申请日：2020-06-12
发明人： Holger Petersen
摘要： A power converter includes a network of switches having a first capacitor switch coupled to a first flying-capacitor, a first switch to couple a second flying-capacitor to a first port, an inductor coupled to a ground switch. A driver drives the network of switches in two states. In the first state the ground port is coupled to a second port via a first path comprising the first flying-capacitor and the inductor, and the first port is coupled to the second port via a second path comprising the first switch, the second flying-capacitor and the inductor. In the second state the ground is coupled to the second port via a third path comprising the ground switch and the inductor, and one of the first port and the ground port is coupled to the second port via a fourth path comprising the first flying-capacitor while bypassing the inductor.
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公开(公告)号：US20210391786A1
公开(公告)日：2021-12-16
申请号：US16900669
申请日：2020-06-12
发明人： Holger Petersen
摘要： A power converter includes a first flying capacitor, an inductor, and a driver. A network of switches has a first switch to couple the first flying capacitor to a first port, and a second switch to couple the inductor to ground. The driver is adapted to drive the network of switches with a sequence of states that includes a first state and a second state. In the first state the ground port is coupled to a second port via a first path comprising the first flying capacitor and the inductor, and the first port is decoupled from the second port. In the second state the ground port is coupled to second port via a second path comprising the second switch and the inductor, and the first port is coupled to the second port via a third path comprising the first flying capacitor while bypassing the inductor.
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公开(公告)号：US20210305167A1
公开(公告)日：2021-09-30
申请号：US17345174
申请日：2021-06-11
发明人： Ernesto Gutierrez, III , Jesus Mennen Belonio , Eric Hu , Melvin Martin , Jerry Li , Francisco Vergara Cadacio
IPC分类号： H01L23/538 , H01L21/48 , H01L25/16 , H01L23/00 , H01L23/498 , H01L23/31 , H01L25/065
摘要： A substrate is provided having a top side and a bottom side, having redistribution layers therein, having at least one copper pillar connected to the redistribution layers on the top side and at least one copper pillar connected to the redistribution layers on the bottom side, and having at least one cavity extending partially into the bottom side of the substrate. At least one passive component is mounted onto the copper pillar on the top side and embedded in a molding compound. At least one silicon die is mounted in the cavity wherein electrical connections are made between the at least one silicon die and the at least one passive component through the redistribution layers. At least one solder ball is mounted on the at least one copper pillar on the bottom side of the substrate to provide package output.
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公开(公告)号：US20210281179A1
公开(公告)日：2021-09-09
申请号：US17308271
申请日：2021-05-05
发明人： Francesco Cannillo , Nicola Macri
摘要： A power converter and method to provide a small conversion ratio between an input and an output voltage. The power converter has an inductor coupled to the input port of the power converter. The power converter has a first stage with an input node; a first switch; a second switch; a third switch coupled to the second switch of the first stage and to a reference potential; and a flying capacitor coupled to the input node. The power converter also has a second stage with an input node; a first switch coupled to the input node of the second stage and to the output port of the power converter; a second switch coupled to the input node of the first stage; a third switch coupled to the second switch of the second stage and to the reference potential; and a flying capacitor coupled to the inductor.
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公开(公告)号：US11114943B2
公开(公告)日：2021-09-07
申请号：US16163971
申请日：2018-10-18
发明人： Francesco Paolo , Julian Tyrrell
摘要： An inductive current sensing method for a DC-DC switching converter is described. A sense coil is placed adjacent to a PCB track between the switching converter output and a load powered by the switching converter. A change in a magnetic field is measured around the track, generating a voltage proportional to a change in a load current. The load current is subtracted from an inductor current, when a current needed on the switching converter output is higher than a current in a steady state. In this way, output voltage undershoot or overshoot in the DC-DC switching converter is minimized.
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