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公开(公告)号：US11487311B2
公开(公告)日：2022-11-01
申请号：US17366724
申请日：2021-07-02
Applicant: POWER INTEGRATIONS, INC.
Inventor： Giao Minh Pham , Lance M. Wong
IPC: H03D3/24 , G05F1/46 , G01R31/317 , H03L7/187 , H02M3/335 , G01R31/28 , G01R29/26 , H02M1/44 , G02F1/35 , H02M1/00
Abstract: A method for providing a jitter signal for modulating a switching frequency of a power switch for a power converter. The method comprising receiving a drive signal representative of the switching frequency of the power switch, detecting the switching frequency from the drive signal, determining if the switching frequency is less than a first threshold frequency, and modulating a frequency of the jitter signal in response to determining if the switching frequency is less than the first threshold frequency.
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公开(公告)号：US20210028708A1
公开(公告)日：2021-01-28
申请号：US17018840
申请日：2020-09-11
Applicant: Power Integrations, Inc.
Inventor： Balu Balakrishnan , Roland Sylvere Saint-Pierre , Giao Minh Pham , Lance M. Wong
Abstract: A controller to regulate a power converter includes a terminal that receives an enable signal including enable events representative of an output of the power converter. A drive circuit generates a drive signal to control switching of a power switch to control an energy transfer from an input to an output of the power converter. The drive circuit turns on the power switch when an enable event is received in the enable signal. A current limit threshold generator is coupled to the drive circuit to generate a threshold signal. The threshold signal increases in response to the power switch turning off and subsequently decreases. The threshold signal and a time between consecutive enable events are used to modulate the drive signal to regulate the output of the power converter.
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公开(公告)号：US10811977B2
公开(公告)日：2020-10-20
申请号：US16173843
申请日：2018-10-29
Applicant: Power Integrations, Inc.
Inventor： Balu Balakrishnan , Roland Sylvere Saint-Pierre , Giao Minh Pham , Lance M. Wong
Abstract: A controller to regulate a power converter includes a terminal coupled to receive an enable signal including enable events representative of an output of the power converter. A drive circuit is coupled to generate a drive signal to control switching of a power switch to control a transfer of energy from an input of the power converter to the output of the power converter. The drive circuit is coupled to turn on the power switch when an enable event is received in the enable signal. A current limit threshold generator is coupled to the drive circuit to generate a current limit threshold signal. The current limit threshold signal varies each switching cycle of the power switch. A time between consecutive enable events in the enable signal is the switching cycle of the power switch.
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公开(公告)号：US10447149B2
公开(公告)日：2019-10-15
申请号：US16243775
申请日：2019-01-09
Applicant: Power Integrations, Inc.
Inventor： Roland Sylvere Saint-Pierre , Giao Minh Pham , Lance M. Wong , David Michael Hugh Matthews
Abstract: A controller includes a switch controller, a current limit generator, a jitter modulator, and an arithmetic operator circuit. The switch controller is coupled to generate a drive signal to control switching of a power switch in response to a current sense signal and a modulated current limit signal to control a transfer of energy from an input of a power converter to an output of the power converter. The current limit generator is coupled to generate a current limit signal. The jitter modulator is coupled to generate a jitter signal for jittering a switching period of the drive signal without an oscillator. The arithmetic operator circuit is coupled to receive the current limit signal and the jitter signal and is coupled to generate a modulated current limit signal in response to the current limit signal and the jitter signal.
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公开(公告)号：US10158295B2
公开(公告)日：2018-12-18
申请号：US15795785
申请日：2017-10-27
Applicant: Power Integrations, Inc.
Inventor： Balu Balakrishnan , Roland Sylvere Saint-Pierre , Giao Minh Pham , Lance M. Wong
Abstract: A power converter includes an energy transfer element that includes a primary winding and a secondary winding, and is coupled to transfer energy between the primary winding and the secondary winding. An enable circuit is coupled to generate an enable signal in response to a feedback signal falling below a threshold. A controller is coupled to control switching of a power switch coupled to the primary winding to regulate an output of the power converter. The controller includes a drive circuit coupled to output a drive signal in response to the enable signal, and a current limit threshold generator coupled to output a current limit threshold signal to the drive circuit in response to the drive signal. The current limit threshold signal varies in response to a time between events of the enable signal over a range of loads coupled to the output of the power converter.
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Patent Agency Ranking
公开(公告)号：US09837911B2
公开(公告)日：2017-12-05
申请号：US14961575
申请日：2015-12-07
Applicant: Power Integrations, Inc.
Inventor： Balu Balakrishnan , Roland Sylvere Saint-Pierre , Giao Minh Pham , Lance M. Wong
CPC classification number: H02M3/33507 , H02M3/156 , H02M3/335 , H02M2001/0009
Abstract: A controller for use in a power converter includes a drive circuit coupled to generate a drive signal to control switching of a power switch to control a transfer of energy from a power converter input to a power converter output. An input for receiving an enable signal including enable events is responsive to the power converter output. The drive circuit is coupled to turn ON the power switch in response to the enable events and turn OFF the power switch in response to a power switch current reaching a current limit threshold. A current limit threshold generator is coupled to receive the enable events and vary the current limit threshold in response to the enable events of the enable signal.
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公开(公告)号：US09774248B2
公开(公告)日：2017-09-26
申请号：US14881527
申请日：2015-10-13
Applicant: Power Integrations, Inc.
Inventor： Roland Sylvere Saint-Pierre , Giao Minh Pham , Lance M. Wong , David Michael Hugh Matthews
CPC classification number: H02M1/44 , H02M3/33507
Abstract: A controller for use in a power converter includes a switch controller coupled to a power switch coupled to an energy transfer element. The switch controller is coupled to receive a current sense signal representative of a drain current through the power switch. The switch controller is coupled to generate a drive signal to control switching of the power switch in response to the current sense signal and a modulated current limit signal to control a transfer of energy from an input to an output of the power converter. A current limit generator is coupled to generate a current limit signal. A jitter generator is coupled to generate a jitter signal. An arithmetic operator circuit is coupled to generate the modulated current limit signal in response to the current limit signal and the jitter signal.
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公开(公告)号：US09742288B2
公开(公告)日：2017-08-22
申请号：US14520142
申请日：2014-10-21
Applicant: Power Integrations, Inc.
Inventor： Balu Balakrishnan , David Michael Hugh Matthews , Vikram Balakrishnan , Roland Sylvere Saint-Pierre , Zhao-Jun Wang , Giao Minh Pham , Qing McIntosh
CPC classification number: H02M3/33507 , H02M3/33592 , H02M2001/0054 , Y02B70/1475 , Y02B70/1491
Abstract: A control circuit for use in an isolated power converter includes an output-side first controller having a switch control signal generator and an extremum locator. The switch control signal generator communicates a control signal to a second controller on the input side of the power converter via an isolated interface to initiate a transition of a switch from an OFF state to an ON state. The extremum locator enables the switch control signal generator to communicate the control signal in response to an oscillating voltage signal at an output terminal of the energy transfer element. The extremum locator enables the switch control signal generator such that the transition of the switch from the OFF state to the ON state occurs substantially at a time that the oscillating voltage signal reaches an extremum.
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公开(公告)号：US20160308451A1
公开(公告)日：2016-10-20
申请号：US15189285
申请日：2016-06-22
Applicant: Power Integrations, Inc.
Inventor： Zhao-Jun Wang , Giao Minh Pham , Roland Sylvere Saint-Pierre
CPC classification number: H02M3/33515 , H02M1/08 , H02M1/32 , H02M3/33523 , H02M7/06 , H02M7/12 , H02M2001/0009 , H02M2001/0032 , Y02B70/16
Abstract: An ac-dc power converter controller includes a switch driver circuit coupled to generate a drive signal to control switching of a power switch to control a transfer of energy from an input of the power converter to an output of the power converter. An input sense circuit is coupled to receive an input sense signal representative of the input of a power converter. A sense enable circuit is coupled to generate a sense enable signal in response to the drive signal. The sense enable signal is coupled to control the input sense circuit to sense the input sense signal for an extended duration of time after the power switch turns OFF.
Abstract translation: 交流 - 直流功率转换器控制器包括开关驱动器电路，其耦合以产生驱动信号以控制功率开关的切换以控制能量从功率转换器的输入到功率转换器的输出的转移。 输入检测电路被耦合以接收表示功率转换器的输入的输入检测信号。 感测使能电路被耦合以响应于驱动信号而产生感测使能信号。 感测使能信号被耦合以控制输入检测电路，以在电源开关断开之后延长持续时间感测输入检测信号。
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公开(公告)号：US09401657B2
公开(公告)日：2016-07-26
申请号：US13801980
申请日：2013-03-13
Applicant: Power Integrations, Inc.
Inventor： Zhao-Jun Wang , Giao Minh Pham , Roland Sylvere Saint-Pierre
CPC classification number: H02M3/33515 , H02M1/08 , H02M1/32 , H02M3/33523 , H02M7/06 , H02M7/12 , H02M2001/0009 , H02M2001/0032 , Y02B70/16
Abstract: A power converter controller includes a switch driver circuit coupled to generate a drive signal to control switching of a power switch to control a transfer of energy from an input of the power converter to an output of the power converter. An input sense circuit is coupled to receive an input sense signal representative of the input of a power converter. A sense enable circuit is coupled to receive the drive signal to generate a sense enable signal to control the input sense circuit in response to the drive signal. The sense enable signal is coupled to control the input sense circuit to sense the input sense signal continuously in response to a first load condition, and sense the input sense signal only during a fraction of a switching period of the power switch in response to a second load condition.
Abstract translation: 电力转换器控制器包括开关驱动器电路，其耦合以产生驱动信号以控制功率开关的切换以控制能量从功率转换器的输入到功率转换器的输出的转移。 输入检测电路被耦合以接收表示功率转换器的输入的输入检测信号。 感测使能电路被耦合以接收驱动信号以产生感测使能信号，以响应于驱动信号来控制输入检测电路。 感测使能信号被耦合以控制输入检测电路以响应于第一负载条件连续地感测输入检测信号，并且仅在功率开关的开关周期的一小部分期间响应于第二负载条件检测输入检测信号 负载条件。
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