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公开(公告)号：US20160248327A1
公开(公告)日：2016-08-25
申请号：US15048511
申请日：2016-02-19
Applicant: LINEAR TECHNOLOGY CORPORATION
Inventor： Jian LI
IPC: H02M3/158
CPC classification number: H02M3/158 , H02M1/08 , H02M3/1584 , H02M2001/0009 , H02M2003/1566
Abstract: A power supply system includes a power source; a load device configured to receive power from the power source; and a power interface device coupled to the power source and the load device and configured to change a first voltage provided by the power source to a second voltage for operating the load device. The power interface device include a main switching converter configured to operate at a first switching frequency and source low frequency current to the load device and an auxiliary switching converter coupled in parallel with the main switching converter and configured to operate at a second and different switching frequency and source fast transient high frequency current to the load device.
Abstract translation: 电源系统包括电源; 被配置为从所述电源接收电力的负载装置; 以及耦合到所述电源和所述负载装置并且被配置为将由所述电源提供的第一电压改变为用于操作所述负载装置的第二电压的电力接口装置。 电力接口装置包括：主开关转换器，被配置为以负载装置的第一开关频率和源低频电流工作，以及与主开关转换器并联耦合的辅助开关转换器，并且被配置为在第二和不同的开关频率 并向负载设备提供快速瞬态高频电流源。
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2.发明申请SYSTEM AND METHOD FOR PROVIDING FAST TRANSIENT RESPONSE WITH DYNAMIC SWITCHING FREQUENCY ADJUSTMENT 有权用动态切换频率调整提供快速瞬态响应的系统和方法公开(公告)号：US20140306670A1
公开(公告)日：2014-10-16
申请号：US13963880
申请日：2013-08-09
Applicant: Linear Technology Corporation
Inventor： Jian LI
IPC: H02M11/00
CPC classification number: H02M3/156 , H02M2003/1566
Abstract: A method and a circuit dynamically adjust a frequency of a clock signal that drives the operations of a power converter. The method includes (a) detecting a change from a predetermined value in an output voltage of the power converter; and (b) upon detecting the change, changing the frequency of the clock signal so as to restore the output voltage. The change, such as a load step-up, may be detected by comparing a feedback signal generated from the output voltage and a predetermined threshold voltage. In one implementation, changing the switching frequency is achieved in increasing (e.g., doubling) the frequency of the clock signal, as needed. The frequency of the clock signal need only be changed for a predetermined time period.
Abstract translation: 一种方法和电路动态地调节驱动功率转换器的操作的时钟信号的频率。 该方法包括：（a）检测来自功率转换器的输出电压中的预定值的变化; 和（b）在检测到变化时，改变时钟信号的频率以恢复输出电压。 可以通过比较从输出电压产生的反馈信号和预定的阈值电压来检测诸如负载升压的变化。 在一个实现中，根据需要增加（例如，加倍）时钟信号的频率来实现改变开关频率。 时钟信号的频率仅需要改变预定时间段。
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公开(公告)号：US20170194863A1
公开(公告)日：2017-07-06
申请号：US15463200
申请日：2017-03-20
Applicant: LINEAR TECHNOLOGY CORPORATION
Inventor： Jian LI
CPC classification number: H02M3/158 , H02M1/08 , H02M3/1584 , H02M2001/0009 , H02M2003/1566
Abstract: A power supply system includes a power source; a load device configured to receive power from the power source; and a power interface device coupled to the power source and the load device and configured to change a first voltage provided by the power source to a second voltage for operating the load device. The power interface device include a main switching converter configured to operate at a first switching frequency and source low frequency current to the load device and an auxiliary switching converter coupled in parallel with the main switching converter and configured to operate at a second and different switching frequency and source fast transient high frequency current to the load device.
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Patent Agency Ranking
公开(公告)号：US20170353116A1
公开(公告)日：2017-12-07
申请号：US15611003
申请日：2017-06-01
Applicant: LINEAR TECHNOLOGY CORPORATION
Inventor： Jindong ZHANG , Jian LI
CPC classification number: H02M3/33523 , H02M1/08 , H02M3/07 , H02M3/073 , H02M3/33576 , H02M3/33592 , H02M3/337 , H02M2001/0048 , H02M2001/0058 , H02M2001/007 , H02M2003/075 , H02M2003/077 , Y02B70/1433 , Y02B70/1475 , Y02B70/1491
Abstract: A hybrid power converter circuit includes a switched-capacitor power converter stage and a pulse-width modulation (PWM) or resonant output circuit coupled to a switching node of the switched-capacitor power converter stage. In particular, the PWM or resonant output circuit can include a transformer having a primary winding and a secondary winding magnetically coupled to each other, and the secondary winding is coupled to the output node of the power converter. The switched-capacitor power converter stage is coupled between the input node of the power converter and the primary winding of the transformer, and includes capacitors and switches configured to connect the capacitors to the input node during a first phase of operation and connect the capacitors to the primary winding of the transformer of the PWM or resonant output circuit during a second phase of operation.
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5.发明申请公开(公告)号：US20170237345A1
公开(公告)日：2017-08-17
申请号：US15585399
申请日：2017-05-03
Applicant: LINEAR TECHNOLOGY CORPORATION
Inventor： Gregory MANLOVE , James MCKENZIE , Robert CHIACCHIA , Yi Ding GU , Jian LI
CPC classification number: G05F1/10 , G05F1/562 , H02M1/32 , H02M3/142 , H02M3/156 , H02M3/158 , H02M2001/0019 , H02M2001/0025
Abstract: A current mode switching regulator circuit and operating method includes a variable duty cycle power switch controller, a voltage feedback loop that provides a feedback signal based on the output voltage, a current feedback loop that provides a current sense signal based on the output current, and an offset circuit having an external signal input and coupled to the current feedback loop. The power switch controller controls the switching regulator circuit to generate an output voltage and an output current. The offset circuit is configured to provide an offset output control signal, independently of the voltage feedback loop, to control the power switch controller so as to vary a duty cycle of the power switch controller based on the current sense signal and an external offset signal applied to the external signal input.
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公开(公告)号：US20170207723A1
公开(公告)日：2017-07-20
申请号：US15407749
申请日：2017-01-17
Applicant: LINEAR TECHNOLOGY CORPORATION
Inventor： Jindong (Henry) ZHANG , Jian LI
CPC classification number: H02M7/537 , H02M1/12 , H02M3/1584 , H02M2001/0009 , H02M2001/0025 , H02M2003/1566
Abstract: A power interface device includes a main switching converter and an auxiliary switching converter. The main switching converter is coupled to an input terminal and an output terminal and configured to operate at a first switching frequency to source a low frequency current from the input terminal to the output terminal. The auxiliary switching converter is coupled to the input terminal and the output terminal in parallel with the main switching converter and configured to operate at a second and higher switching frequency than the first switching frequency to source a fast transient high frequency current from the input terminal to the output terminal.
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7.发明申请公开(公告)号：US20160248328A1
公开(公告)日：2016-08-25
申请号：US15048591
申请日：2016-02-19
Applicant: LINEAR TECHNOLOGY CORPORATION
Inventor： Henry Jindong ZHANG , Jian LI
IPC: H02M3/158
CPC classification number: H02M3/158 , H02M1/08 , H02M3/1584 , H02M2001/0009 , H02M2003/1566
Abstract: A power interface device includes a main switching converter, an auxiliary switching converter, and a feedback sense circuit. The main switching converter is coupled to an input terminal and an output terminal and configured to operate at a first switching frequency to source a low frequency current from the input terminal to the output terminal. The auxiliary switching converter is coupled to the input terminal and the output terminal in parallel with the main switching converter and configured to operate at a second and higher switching frequency than the first switching frequency to source a fast transient high frequency current from the input terminal to the output terminal.
Abstract translation: 电源接口装置包括主开关转换器，辅助开关转换器和反馈感测电路。 主开关转换器耦合到输入端子和输出端子，并被配置为以第一开关频率工作以将低频电流从输入端子输出到输出端子。 辅助开关转换器与主开关转换器并联连接到输入端子和输出端子，并被配置为在比第一开关频率高的第二和更高的开关频率下工作，以将来自输入端子的快速瞬态高频电流输出到 输出端子。
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公开(公告)号：US20170207721A1
公开(公告)日：2017-07-20
申请号：US15199693
申请日：2016-06-30
Applicant: LINEAR TECHNOLOGY CORPORATION
Inventor： Jian LI
CPC classification number: H02M7/537 , H02M1/12 , H02M3/1584 , H02M2001/0009 , H02M2001/0025 , H02M2003/1566
Abstract: A power interface device includes a main switching converter, an auxiliary switching converter, a feedback sense circuit, an error amplifier, a high pass filter, a transient detection circuit, and an auxiliary control circuit. The transient detection circuit is configured to receive the higher frequency component of the transient signal and output an enable signal when the higher frequency component of the transient signal falls outside of an operating window range defined by a first threshold and a second threshold and output a disable signal when the higher frequency component of the transient signal stays within the operating window range. The auxiliary control circuit configured to activate the auxiliary switching converter in accordance with the enable signal and to deactivate the auxiliary switching converter in accordance with the disable signal.
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