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公开(公告)号：US20170040892A1
公开(公告)日：2017-02-09
申请号：US14818209
申请日：2015-08-04
Applicant: QUALCOMM Incorporated
Inventor： Joseph Rutkowski , Yikai Wang , Jiwei Chen
IPC: H02M3/158
CPC classification number: H02M3/158 , G05F1/618 , H02M2001/0009
Abstract: In one embodiment, a switching regulator includes an inductor, a first switch, and a second switch. The first and second switches generate current in the inductor. Inductor current may flow through the second switch with both a positive and negative polarity. Voltages on terminals of the second switch may be sensed, and an offset applied to generate a level shifted signal. In one embodiment, the switching regulator is a boost switching regulator, and the offset is generated using a current source. Matched MOS transistor switches may be used to couple voltages on terminals of the second switch to amplifier inputs, and the offset is introduced across an MOS switch coupled between one amplifier input and the output.
Abstract translation: 在一个实施例中，开关调节器包括电感器，第一开关和第二开关。 第一和第二开关在电感器中产生电流。 电感电流可以通过正极和负极两者流过第二开关。 可以感测第二开关的端子上的电压，并且施加用于产生电平移位信号的偏移。 在一个实施例中，开关调节器是升压开关调节器，并且使用电流源产生偏移。 匹配的MOS晶体管开关可用于将第二开关的端子上的电压耦合到放大器输入，并且偏移被引入耦合在一个放大器输入和输出之间的MOS开关。
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公开(公告)号：US11601051B2
公开(公告)日：2023-03-07
申请号：US16444844
申请日：2019-06-18
Applicant: QUALCOMM Incorporated
Inventor： Chengyue Yu , Zhen Ning Low , Guoyong Guo , Jiwei Chen
Abstract: Certain aspects of the present disclosure generally relate to a connection terminal pattern and layout for a three-level buck regulator. One example electronic module generally includes a substrate, an integrated circuit (IC) package disposed on the substrate and comprising transistors of a three-level buck regulator, a capacitive element of the three-level buck regulator disposed on the substrate, and an inductive element of the three-level buck regulator disposed on the substrate. In certain aspects, the capacitive element and the inductive element may be disposed adjacent to different sides of the IC package.
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公开(公告)号：US10374514B2
公开(公告)日：2019-08-06
申请号：US14534034
申请日：2014-11-05
Applicant: QUALCOMM Incorporated
Inventor： Subbarao Surendra Chakkirala , Jiwei Chen
Abstract: In one embodiment, a control circuit adjusts a duty cycle of a boost converter and comprises a duty cycle limiter generator configured to receive an input voltage provided to the boost converter and to generate a control signal to be provided to the boost converter for adjusting the duty cycle of the boost converter to control the output voltage of the booster converter in response to the input voltage. In one embodiment, the maximum duty cycle limit generator further generates the maximum duty cycle signal in response to an output voltage of the boost converter.
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公开(公告)号：US11791721B2
公开(公告)日：2023-10-17
申请号：US16778697
申请日：2020-01-31
Applicant: Qualcomm Incorporated
Inventor： Jiwei Chen , Guoyong Guo , Yue Jing
CPC classification number: H02M3/07 , G06F1/263 , H02J7/007 , H02J7/0068 , H02J2207/20
Abstract: An apparatus is disclosed for implementing a multi-mode direct-current (DC)-to-DC power converter. In an example aspect, the apparatus includes a DC-to-DC power converter with a flying capacitor, an inductor, and four switches. The inductor is coupled between a second node and a battery node. A first switch is coupled between a first node and a first terminal of the flying capacitor. A second switch is coupled between the first terminal and the second node. A third switch is coupled between a second terminal of the flying capacitor and the second node. A fourth switch is coupled between the second terminal and a ground node. The DC-to-DC power converter is configured to selectively transfer power from the first node to the battery node according to a first operational mode and transfer other power from the battery node to the first node according to a second operational mode.
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公开(公告)号：US20210242771A1
公开(公告)日：2021-08-05
申请号：US16778697
申请日：2020-01-31
Applicant: Qualcomm Incorporated
Inventor： Jiwei Chen , Guoyong Guo , Yue Jing
Abstract: An apparatus is disclosed for implementing a multi-mode direct-current (DC)-to-DC power converter. In an example aspect, the apparatus includes a DC-to-DC power converter with a flying capacitor, an inductor, and four switches. The inductor is coupled between a second node and a battery node. A first switch is coupled between a first node and a first terminal of the flying capacitor. A second switch is coupled between the first terminal and the second node. A third switch is coupled between a second terminal of the flying capacitor and the second node. A fourth switch is coupled between the second terminal and a ground node. The DC-to-DC power converter is configured to selectively transfer power from the first node to the battery node according to a first operational mode and transfer other power from the battery node to the first node according to a second operational mode.
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Patent Agency Ranking
公开(公告)号：US09729061B2
公开(公告)日：2017-08-08
申请号：US14794777
申请日：2015-07-08
Applicant: QUALCOMM Incorporated
Inventor： Jiwei Chen
CPC classification number: H02M3/1588 , H02M1/38 , H02M2001/0009 , H02M2001/0048 , Y02B70/1466 , Y02B70/1491
Abstract: A boost regulator that selectively operates in an asynchronous mode, a synchronous mode, or an adaptive mode. In the adaptive mode, the boost mode regulator controls a high side switch according to an adaptive dead time. Adaptive mode allows the boost regulator to operate more efficiently than in asynchronous mode.
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公开(公告)号：US11606032B2
公开(公告)日：2023-03-14
申请号：US16683913
申请日：2019-11-14
Applicant: QUALCOMM Incorporated
Inventor： Chunping Song , Jiwei Chen , David King Wai Li
Abstract: Certain aspects of the present disclosure generally relate to an adaptive combination power supply circuit. The adaptive combination power supply circuit may be capable of switching between performing as a three-level buck converter and as a divide-by-two charge pump. One example power supply circuit generally includes a first transistor; a second transistor coupled to the first transistor via a first node; a third transistor coupled to the second transistor via a second node; a fourth transistor coupled to the third transistor via a third node; a capacitive element having a first terminal coupled to the first node and a second terminal coupled to the third node; an inductive element having a first terminal coupled to the second node; and a switch having a first terminal coupled to the first terminal of the inductive element, the switch having a second terminal coupled to a second terminal of the inductive element.
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8.发明授权公开(公告)号：US09780657B2
公开(公告)日：2017-10-03
申请号：US14805209
申请日：2015-07-21
Applicant: QUALCOMM Incorporated
Inventor： Yikai Wang , Joseph Rutkowski , Jiwei Chen
CPC classification number: H02M3/158 , G05F1/618 , H02M1/4225 , H02M3/156 , H02M2001/0009
Abstract: The present disclosure pertains to circuits and methods for controlling a boost switching regulator based on inductor current. An input voltage is coupled to a first terminal of an inductor and the second terminal of the inductor is alternately coupled between a reference voltage and a boosted output voltage. The input voltage is further coupled to a first terminal of an integrator circuit, and a second terminal of the integrator circuit may be alternately coupled between the reference voltage and the boosted output voltage, for example, to produce a voltage corresponding to a current in the inductor. The present circuit may be used for voltage control or current control modes, or both, in a boost switching regulator.
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公开(公告)号：US09755515B2
公开(公告)日：2017-09-05
申请号：US14818209
申请日：2015-08-04
Applicant: QUALCOMM Incorporated
Inventor： Joseph Rutkowski , Yikai Wang , Jiwei Chen
CPC classification number: H02M3/158 , G05F1/618 , H02M2001/0009
Abstract: In one embodiment, a switching regulator includes an inductor, a first switch, and a second switch. The first and second switches generate current in the inductor. Inductor current may flow through the second switch with both a positive and negative polarity. Voltages on terminals of the second switch may be sensed, and an offset applied to generate a level shifted signal. In one embodiment, the switching regulator is a boost switching regulator, and the offset is generated using a current source. Matched MOS transistor switches may be used to couple voltages on terminals of the second switch to amplifier inputs, and the offset is introduced across an MOS switch coupled between one amplifier input and the output.
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10.发明申请CIRCUITS AND METHODS FOR CONTROLLING A BOOST SWITCHING REGULATOR BASED ON INDUCTOR CURRENT 有权基于电感电流控制增压开关稳压器的电路及方法公开(公告)号：US20170025947A1
公开(公告)日：2017-01-26
申请号：US14805209
申请日：2015-07-21
Applicant: QUALCOMM Incorporated
Inventor： Yikai Wang , Joseph Rutkowski , Jiwei Chen
IPC: H02M3/158
CPC classification number: H02M3/158 , G05F1/618 , H02M1/4225 , H02M3/156 , H02M2001/0009
Abstract: The present disclosure pertains to circuits and methods for controlling a boost switching regulator based on inductor current. An input voltage is coupled to a first terminal of an inductor and the second terminal of the inductor is alternately coupled between a reference voltage and a boosted output voltage. The input voltage is further coupled to a first terminal of an integrator circuit, and a second terminal of the integrator circuit may be alternately coupled between the reference voltage and the boosted output voltage, for example, to produce a voltage corresponding to a current in the inductor. The present circuit may be used for voltage control or current control modes, or both, in a boost switching regulator.
Abstract translation: 本公开涉及用于基于电感器电流来控制升压开关稳压器的电路和方法。 输入电压耦合到电感器的第一端子，并且电感器的第二端子交替地耦合在参考电压和升压的输出电压之间。 输入电压还耦合到积分器电路的第一端子，并且积分器电路的第二端子可以交替耦合在参考电压和升压的输出电压之间，例如以产生对应于电流的电压 电感。 本升压电路可用于升压开关稳压器中的电压控制或电流控制模式或两者。
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