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1. 发明申请

US20220103077A1 SECONDARY CONTROLLER FOR USE IN SYNCHRONOUS FLYBACK CONVERTER 有权
公开(公告)号：US20220103077A1
公开(公告)日：2022-03-31
申请号：US17366914
申请日：2021-07-02
申请人： Power Integrations, Inc.
发明人： Sheng Liu , Alex B. Djenguerian
IPC分类号： H02M3/335 , H02M1/08 , H02M1/14
摘要： A secondary controller for use in a power converter includes a drive circuit coupled to a secondary side of the power converter. The drive circuit is configured to generate a first signal to enable a first switch coupled to a primary side of the primary converter. The first signal is generated in response to a feedback signal representative of an output of the power converter. A control circuit is coupled to receive the first signal and an input signal representative of a secondary winding voltage of the power converter. The control circuit is configured to generate a second signal to control a second switch coupled to the secondary side of the power converter. The control circuit is configured to generate the second signal in response to the first signal and a compare signal, and in response to an output of a latch.

2. 发明授权

US10177666B2 Method and apparatus for sensing multiple voltage values from a single terminal of a power converter controller 有权
公开(公告)号：US10177666B2
公开(公告)日：2019-01-08
申请号：US15877084
申请日：2018-01-22
申请人： Power Integrations, Inc.
发明人： Alex B. Djenguerian , Balu Balakrishnan
IPC分类号： H02M3/335 , H02M3/24 , H02M1/08 , H02M1/32 , H02M1/36 , H02M1/00
摘要： A method for regulating an output of a power converter includes receiving a signal from an auxiliary winding of an energy transfer element of the power converter. The energy transfer element includes an input winding coupled to an input of the power converter, an output winding coupled to the output of the power converter, and the auxiliary winding. The signal represents a line input voltage of the power converter during at least a portion of an on time of a power switch coupled to the input winding. The signal represents an output voltage of the power converter during at least a portion of an off time of the power switch. The power switch is switched in response to the signal to regulate the output of the power converter.

3. 发明申请

US20180145597A1 METHOD AND APPARATUS FOR SENSING MULTIPLE VOLTAGE VALUES FROM A SINGLE TERMINAL OF A POWER CONVERTER CONTROLLER 审中-公开
公开(公告)号：US20180145597A1
公开(公告)日：2018-05-24
申请号：US15877084
申请日：2018-01-22
申请人： Power Integrations, Inc.
发明人： Alex B. Djenguerian , Balu Balakrishnan
IPC分类号： H02M3/335 , H02M3/24 , H02M1/08 , H02M1/32 , H02M1/36 , H02M1/00
CPC分类号： H02M3/33507 , H02M1/08 , H02M1/32 , H02M1/36 , H02M3/24 , H02M3/33523 , H02M2001/0009
摘要： A method for regulating an output of a power converter includes receiving a signal from an auxiliary winding of an energy transfer element of the power converter. The energy transfer element includes an input winding coupled to an input of the power converter, an output winding coupled to the output of the power converter, and the auxiliary winding. The signal represents a line input voltage of the power converter during at least a portion of an on time of a power switch coupled to the input winding. The signal represents an output voltage of the power converter during at least a portion of an off time of the power switch. The power switch is switched in response to the signal to regulate the output of the power converter.

4. 发明授权

US09627985B2 Power converter output voltage clamp and supply terminal 有权
公开(公告)号：US09627985B2
公开(公告)日：2017-04-18
申请号：US14679662
申请日：2015-04-06
申请人： Power Integrations, Inc.
发明人： David Michael Hugh Matthews , Balu Balakrishnan , Alex B. Djenguerian
IPC分类号： H02M3/335 , H02M1/32 , H02M1/00
CPC分类号： H02M3/33523 , H02M1/32 , H02M2001/0003
摘要： A secondary control circuit includes a voltage regulator circuit coupled to an output of the power converter to provide a regulated power supply. One or more switched loads are coupled between a first terminal and an output ground terminal. The first terminal is coupled to the output of the power converter. Each switched load is coupled to draw a respective current from a load current to clamp the output of a power converter. One or more comparator circuits are coupled to a second terminal. The second terminal is coupled to receive an output sense signal. Each comparator circuit is coupled to receive a reference signal that is a scaled representation of a first reference signal. Each switched load is switched in response to a respective comparator circuit to draw a respective current from the load current of the power converter to clamp the output of the power converter.

5. 发明申请

US20160164424A1 METHOD AND APPARATUS FOR INTEGRATED CABLE DROP COMPENSATION OF A POWER CONVERTER 审中-公开
标题翻译：一种功率转换器集成电缆降低补偿的方法和装置
公开(公告)号：US20160164424A1
公开(公告)日：2016-06-09
申请号：US15040225
申请日：2016-02-10
申请人： Power Integrations, Inc.
发明人： Alex B. Djenguerian , Erdem Bircan
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M3/33523 , H02M2001/0025 , Y10T307/858
摘要： A controller for a power converter includes a switching control circuit to output a drive signal to control switching of a switch to regulate the output power of the power converter, and output a switching signal representative of the drive signal. A cable drop compensator receives the switching signal, and outputs a compensated reference voltage signal to the switching control circuit. The cable drop compensator further includes a switching coefficient calculator to output a switching coefficient signal in response to the switching signal. The switching coefficient signal is representative of a ratio of a load current to a maximum deliverable load current. A voltage compensation calculator outputs the compensated reference voltage signal in response to the switching coefficient signal. The switching control circuit outputs the drive signal in response to the compensated reference voltage signal.
摘要翻译：一种用于功率转换器的控制器包括：切换控制电路，用于输出驱动信号以控制开关的切换以调节功率转换器的输出功率，并输出代表驱动信号的开关信号。电缆降补偿器接收切换信号，并将补偿参考电压信号输出到开关控制电路。电缆降补偿器还包括切换系数计算器，以响应切换信号输出切换系数信号。开关系数信号表示负载电流与最大可输送负载电流的比值。电压补偿计算器响应于开关系数信号输出补偿参考电压信号。开关控制电路响应补偿的参考电压信号输出驱动信号。

6. 发明申请

US20160141968A1 RECEIVE CIRCUIT FOR USE IN A POWER CONVERTER 审中-公开
标题翻译：接收电路用于电源转换器
公开(公告)号：US20160141968A1
公开(公告)日：2016-05-19
申请号：US15004422
申请日：2016-01-22
申请人： POWER INTEGRATIONS, INC.
发明人： Alex B. Djenguerian , Sheng Liu , Leif Lund
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M3/335 , H03G1/00 , Y02B70/1475
摘要： A multi-die isolated integrated circuit controller includes a magnetically coupled communication link, a transmitter circuit coupled to the magnetically coupled communication link, and a receiver circuit coupled to the magnetically coupled communication link. The transmitter circuit is galvanically isolated from the receiver circuit. The transmitter circuit is coupled to send an input pulse to the receiver circuit by way of the magnetically coupled communication link. The receiver circuit is coupled to receive a receiver voltage by way of the magnetically coupled communication link to generate an output voltage in response to the receiver voltage and a threshold voltage.
摘要翻译：多管芯隔离集成电路控制器包括磁耦合通信链路，耦合到磁耦合通信链路的发射机电路和耦合到磁耦合通信链路的接收机电路。发射机电路与接收机电路电隔离。发射机电路被耦合以通过磁耦合通信链路向接收机电路发送输入脉冲。接收器电路被耦合以通过磁耦合通信链路接收接收器电压，以响应于接收器电压和阈值电压而产生输出电压。

7. 发明授权

US09166575B2 Low threshold voltage comparator 有权
标题翻译：低阈值电压比较器
公开(公告)号：US09166575B2
公开(公告)日：2015-10-20
申请号：US13791723
申请日：2013-03-08
申请人： Power Integrations, Inc.
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
IPC分类号： H03K5/153 , H03K5/08 , H02M3/335 , H03K5/24
CPC分类号： H03K5/084 , H02M3/33576 , H02M3/33592 , H03K5/2436 , Y02B70/1475
摘要： A voltage comparator includes an amplifier coupled to receive an input signal at an amplifier input and generate an output signal at an amplifier output in response to the input signal. The amplifier includes a current generation circuit coupled to generate a first current flowing through a first branch and a second current flowing through a second branch. A first transistor has a first terminal coupled to the amplifier input and a second terminal coupled to the first branch. A second transistor has a third terminal coupled to the second branch, a fourth terminal coupled to a reference voltage. A second control terminal of the second transistor is coupled to the first control terminal. An output circuit is coupled to the amplifier output to generate a comparator output signal in response to the output signal. The amplifier output is coupled to the second branch.
摘要翻译：电压比较器包括放大器，耦合以在放大器输入处接收输入信号，并响应于输入信号在放大器输出端产生输出信号。该放大器包括电流产生电路，其被耦合以产生流过第一分支的第一电流和流过第二分支的第二电流。第一晶体管具有耦合到放大器输入的第一端子和耦合到第一分支的第二端子。第二晶体管具有耦合到第二分支的第三端子，耦合到参考电压的第四端子。第二晶体管的第二控制端耦合到第一控制端。输出电路耦合到放大器输出以响应于输出信号产生比较器输出信号。放大器输出耦合到第二分支。

8. 发明授权

US09136765B2 Techniques for controlling a power converter using multiple controllers 有权
标题翻译：使用多个控制器控制功率转换器的技术
公开(公告)号：US09136765B2
公开(公告)日：2015-09-15
申请号：US13791732
申请日：2013-03-08
申请人： Power Integrations, Inc.
发明人： Balu Balakrishnan , Alex B. Djenguerian , Sheng Liu
IPC分类号： H02M1/36 , H02M3/335 , H02M3/156
CPC分类号： H02M3/33523 , H02M1/36 , H02M3/156 , H02M3/335 , H02M3/33553
摘要： A power converter controller includes a primary controller that is galvanically isolated from a secondary controller. The primary controller controls a state of a power switch during a first mode of operation according to a switching pattern defined by the primary controller. During a second mode of operation, the primary controller controls the state of the power switch in response to control signals received via a communication link. The secondary controller operates in a powered down state during the first mode of operation. The secondary controller initiates a transition operation with the primary controller that transitions the primary controller and the secondary controller from the first mode of operation to the second mode of operation. In the second mode of operation, the secondary controller transmit the control signals to the primary controller via the communication link.
摘要翻译：电力转换器控制器包括与次级控制器电隔离的主控制器。主控制器根据由主控制器定义的切换模式在第一操作模式期间控制电源开关的状态。在第二操作模式期间，主控制器响应于经由通信链路接收的控制信号来控制电源开关的状态。在第一操作模式期间，次级控制器处于断电状态。辅助控制器通过主控制器启动转换操作，主控制器将主控制器和次控制器从第一操作模式转换到第二操作模式。在第二操作模式中，次级控制器经由通信链路将控制信号发送到主控制器。

9. 发明授权

US09071153B2 Method and apparatus for power converter fault condition detection 有权
标题翻译：电力转换器故障状态检测方法及装置
公开(公告)号：US09071153B2
公开(公告)日：2015-06-30
申请号：US14279005
申请日：2014-05-15
申请人： Power Integrations, Inc.
发明人： Alex B. Djenguerian , Erdem Bircan
IPC分类号： H02M3/335 , H02M1/32
CPC分类号： H02M3/33523 , H02M1/32
摘要： A controller includes a control, a sensor, and a fault detector. The control is configured to control a switch to regulate an output of the power converter. The sensor receives a signal from a terminal of the controller that is representative of an input voltage during an ON state of the switch and is representative of an output voltage during an OFF state of the switch. The sensor is configured to sample the signal from the terminal during the ON state to generate a first sample signal and to sample the signal from the terminal during the OFF state to generate a second sample signal. The fault detector detects a fault condition in response to either the first or the second sample signals. The control inhibits the switching of the switch to reduce a power output level of the power converter in response to the fault condition.
摘要翻译：控制器包括控制器，传感器和故障检测器。该控制被配置为控制开关来调节功率转换器的输出。传感器在开关的接通状态期间从控制器的端子接收代表输入电压的信号，并且代表开关断开状态期间的输出电压。传感器被配置为在ON状态期间从终端采集信号以产生第一采样信号，并且在OFF状态下对来自端子的信号进行采样以产生第二采样信号。故障检测器响应于第一或第二采样信号来检测故障状况。该控制禁止开关的切换以响应于故障状况降低功率转换器的功率输出电平。

10. 发明申请

US20140254202A1 LOW THRESHOLD VOLTAGE COMPARATOR 有权
标题翻译：低电压电压比较器
公开(公告)号：US20140254202A1
公开(公告)日：2014-09-11
申请号：US13791723
申请日：2013-03-08
申请人： POWER INTEGRATIONS, INC.
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
IPC分类号： H02M3/335 , H03K5/08
CPC分类号： H03K5/084 , H02M3/33576 , H02M3/33592 , H03K5/2436 , Y02B70/1475
摘要： A voltage comparator includes an amplifier coupled to receive an input signal at an amplifier input and generate an output signal at an amplifier output in response to the input signal. The amplifier includes a current generation circuit coupled to generate a first current flowing through a first branch and a second current flowing through a second branch. A first transistor has a first terminal coupled to the amplifier input and a second terminal coupled to the first branch. A second transistor has a third terminal coupled to the second branch, a fourth terminal coupled to a reference voltage. A second control terminal of the second transistor is coupled to the first control terminal. An output circuit is coupled to the amplifier output to generate a comparator output signal in response to the output signal. The amplifier output is coupled to the second branch.
摘要翻译：电压比较器包括放大器，耦合以在放大器输入处接收输入信号，并响应于输入信号在放大器输出端产生输出信号。该放大器包括电流产生电路，其被耦合以产生流过第一分支的第一电流和流过第二分支的第二电流。第一晶体管具有耦合到放大器输入的第一端子和耦合到第一分支的第二端子。第二晶体管具有耦合到第二分支的第三端子，耦合到参考电压的第四端子。第二晶体管的第二控制端耦合到第一控制端。输出电路耦合到放大器输出以响应于输出信号产生比较器输出信号。放大器输出耦合到第二分支。

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