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1. 发明授权

US09712045B2 System and method for a startup cell circuit 有权
公开(公告)号：US09712045B2
公开(公告)日：2017-07-18
申请号：US14933428
申请日：2015-11-05
申请人： Infineon Technologies Austria AG
发明人： Mingping Mao , Junyang Luo , Guoxing Zhang
IPC分类号： H02M1/36 , H02M1/42 , H02M3/337 , H02M1/00
CPC分类号： H02M1/36 , H02M1/4225 , H02M3/337 , H02M2001/0032 , H02M2001/0058 , H02M2001/007 , H02M2001/008 , Y02B70/126 , Y02B70/1433 , Y02B70/1491 , Y02B70/16
摘要： According to an embodiment, a circuit comprising includes a first switching circuit coupled to a power supply input, a second switching circuit coupled to an output of the first switching circuit, a supply capacitor coupled to the second switching circuit, and a startup cell coupled to the power supply input and the supply capacitor. The startup cell is configured to electrically couple the power supply input to the supply capacitor when the second switching circuit is not actively switching. The startup cell is also configured to electrically decouple the power supply input from the supply capacitor when the second switching circuit is actively switching.

2. 发明申请

US20170047854A1 ADJUSTABLE BLANKING TIME FOR OVERLOAD PROTECTION FOR SWITCH-MODE POWER SUPPLIES 有权
标题翻译：用于开关电源的过载保护的可调整的空闲时间
公开(公告)号：US20170047854A1
公开(公告)日：2017-02-16
申请号：US14823860
申请日：2015-08-11
申请人： Infineon Technologies Austria AG
发明人： Mingping Mao , Xiaowu Gong
IPC分类号： H02M3/335
CPC分类号： H02M3/33546 , H02M1/32 , H02M3/33507
摘要： A blanking time for a switch-mode power supply controller includes a first blanking time interval and a second blanking time interval. During the first blanking time interval, the time to charge the feedback voltage at the feedback input of the switch-mode power supply is measured, and a timer setting time is stored based on the measured time. During the second time interval, a series of charge cycles is used. At each charge cycle, the feedback voltage is discharged and then allowed to charge. If, after being discharged, the feedback voltage reaches a voltage threshold during the timer setting time, a counter value is incremented and the next cycle begins. If the feedback voltage does not reach the voltage threshold within the timer setting time, the blanking time ends. If the counter value reaches a count threshold, a shutdown mode is initiated.
摘要翻译：开关模式电源控制器的消隐时间包括第一消隐时间间隔和第二消隐时间间隔。在第一消隐时间间隔期间，测量在开关模式电源的反馈输入端对反馈电压充电的时间，并且基于测量的时间来存储定时器设置时间。在第二时间间隔期间，使用一系列充电周期。在每个充电周期，反馈电压被放电，然后允许充电。如果在定时器设定时间内，放电后反馈电压达到电压阈值，则计数器值递增，下一个周期开始。如果反馈电压在定时器设定时间内未达到电压阈值，则消隐时间结束。如果计数器值达到计数阈值，则启动关机模式。

3. 发明授权

US09692308B2 Switch-mode power supply current monitoring with over current and overload protection 有权
公开(公告)号：US09692308B2
公开(公告)日：2017-06-27
申请号：US14928475
申请日：2015-10-30
申请人： Infineon Technologies Austria AG
发明人： Weifu Yu , Mingping Mao , Tong Bao , Guoxing Zhang
IPC分类号： H02M3/335 , H02M1/32 , H02M1/00
CPC分类号： H02M3/33546 , H02M1/32 , H02M1/36 , H02M3/33507 , H02M2001/0009
摘要： A device for current protection comprises a switch-mode power supply controller. The switch-mode power supply controller includes an inrush current comparator that is arranged to compare a primary winding current with an inrush current threshold at least during at least one of a startup phase or a burst phase. The switch-mode power supply controller also includes a switch controller that is arranged to control regulation of an output voltage by controlling turning of a primary switch on and off based on a feedback signal that is based, at least in part, on the output voltage. The switch controller is further arranged to, if the inrush current comparator determines that the primary winding current has reached the inrush current threshold, control the primary switch to turn off and remain turned off until at least a next switching cycle.

4. 发明申请

US20170126140A1 SWITCH-MODE POWER SUPPLY CURRENT MONITORING WITH OVER CURRENT AND OVERLOAD PROTECTION 有权
公开(公告)号：US20170126140A1
公开(公告)日：2017-05-04
申请号：US14928475
申请日：2015-10-30
申请人： Infineon Technologies Austria AG
发明人： Weifu Yu , Mingping Mao , Tong Bao , Guoxing Zhang
IPC分类号： H02M3/335 , H02M1/32
CPC分类号： H02M3/33546 , H02M1/32 , H02M1/36 , H02M3/33507 , H02M2001/0009
摘要： A device for current protection comprises a switch-mode power supply controller. The switch-mode power supply controller includes an inrush current comparator that is arranged to compare a primary winding current with an inrush current threshold at least during at least one of a startup phase or a burst phase. The switch-mode power supply controller also includes a switch controller that is arranged to control regulation of an output voltage by controlling turning of a primary switch on and off based on a feedback signal that is based, at least in part, on the output voltage. The switch controller is further arranged to, if the inrush current comparator determines that the primary winding current has reached the inrush current threshold, control the primary switch to turn off and remain turned off until at least a next switching cycle.

5. 发明授权

US09419513B2 Power factor corrector timing control with efficient power factor and THD 有权
标题翻译：功率因数校正器时序控制，具有高效的功率因数和THD
公开(公告)号：US09419513B2
公开(公告)日：2016-08-16
申请号：US14180055
申请日：2014-02-13
申请人： Infineon Technologies Austria AG
发明人： Mingping Mao , Junyang Luo , Dong Li
IPC分类号： H03B19/06 , H02M1/42 , H02M7/217 , H03K17/16
CPC分类号： H02M1/4208 , H02M1/4225 , H02M7/217 , H03K17/165 , Y02B70/126
摘要： Methods, devices, and integrated circuits are disclosed for controlling switch timing in a power factor correction timing switch. In one example, a device is configured to receive one or more indications of one or more power factor correction circuit parameters. The device is further configured to determine a switch delay time based at least in part on the one or more power factor correction circuit parameters. The device is further configured to generate an indication of a switch on time for the power factor correction timing switch, wherein the switch on time is based at least in part on the switch delay time.
摘要翻译：公开了用于控制功率因数校正定时开关中的开关定时的方法，装置和集成电路。在一个示例中，设备被配置为接收一个或多个功率因数校正电路参数的一个或多个指示。该设备还被配置为至少部分地基于一个或多个功率因数校正电路参数来确定开关延迟时间。该设备还被配置为产生功率因数校正定时开关的接通时间指示，其中开关接通时间至少部分地基于开关延迟时间。

6. 发明申请

US20140301116A1 Switched Mode Power Supply Including a Flyback Converter with Primary Side Control 有权
标题翻译：开关电源，包括具有初级侧控制的反激式转换器
公开(公告)号：US20140301116A1
公开(公告)日：2014-10-09
申请号：US13857642
申请日：2013-04-05
申请人： INFINEON TECHNOLOGIES AUSTRIA AG
发明人： Guoxing Zhang , Mingping Mao
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/33515 , H02M3/33523 , H02M2001/0009
摘要： A method and apparatus for controlling a flyback converter are presented. The flyback converter includes a transformer, a semiconductor switch coupled to a primary winding of the transformer, a current measurement circuit coupled to the semiconductor switch, a diode coupled in series to a secondary winding of the transformer, and a controller. The controller is configured to receive a feedback voltage, a reference signal, and the measured primary current and generate a control signal for the semiconductor switch dependent on the feedback voltage, the reference signal, and the measured primary current. The semiconductor switch switches on and off cyclically in CCM operation.
摘要翻译：提出了一种用于控制反激式转换器的方法和装置。反激转换器包括变压器，耦合到变压器的初级绕组的半导体开关，耦合到半导体开关的电流测量电路，与变压器的次级绕组串联耦合的二极管和控制器。控制器配置为接收反馈电压，参考信号和测量的初级电流，并根据反馈电压，参考信号和测量的初级电流产生用于半导体开关的控制信号。半导体开关在CCM操作中循环打开和关闭。

7. 发明申请

US20160141951A1 System and Method for a Startup Cell Circuit 有权
标题翻译：启动单元电路的系统和方法
公开(公告)号：US20160141951A1
公开(公告)日：2016-05-19
申请号：US14933428
申请日：2015-11-05
申请人： Infineon Technologies Austria AG
发明人： Mingping Mao , Junyang Luo , Guoxing Zhang
IPC分类号： H02M1/36 , H02M3/335
CPC分类号： H02M1/36 , H02M1/4225 , H02M3/337 , H02M2001/0032 , H02M2001/0058 , H02M2001/007 , H02M2001/008 , Y02B70/126 , Y02B70/1433 , Y02B70/1491 , Y02B70/16
摘要： According to an embodiment, a circuit comprising includes a first switching circuit coupled to a power supply input, a second switching circuit coupled to an output of the first switching circuit, a supply capacitor coupled to the second switching circuit, and a startup cell coupled to the power supply input and the supply capacitor. The startup cell is configured to electrically couple the power supply input to the supply capacitor when the second switching circuit is not actively switching. The startup cell is also configured to electrically decouple the power supply input from the supply capacitor when the second switching circuit is actively switching.
摘要翻译：根据一个实施例，一种电路包括：第一开关电路，其耦合到电源输入;耦合到第一开关电路的输出端的第二开关电路;耦合到第二开关电路的电源电容;以及耦合到电源输入和电源电容。启动单元被配置为当第二开关电路不主动切换时将电源输入电耦合到电源电容器。启动单元还被配置为当第二开关电路主动切换时将电源输入与供电电容器电耦合。

8. 发明授权

US08947894B2 Switched mode power supply including a flyback converter with primary side control 有权
标题翻译：开关模式电源，包括具有初级侧控制的反激式转换器
公开(公告)号：US08947894B2
公开(公告)日：2015-02-03
申请号：US13857642
申请日：2013-04-05
申请人： Infineon Technologies Austria AG
发明人： Guoxing Zhang , Mingping Mao
IPC分类号： H02M3/335 , H02M3/24
CPC分类号： H02M3/33507 , H02M3/33515 , H02M3/33523 , H02M2001/0009
摘要： A method and apparatus for controlling a flyback converter are presented. The flyback converter includes a transformer, a semiconductor switch coupled to a primary winding of the transformer, a current measurement circuit coupled to the semiconductor switch, a diode coupled in series to a secondary winding of the transformer, and a controller. The controller is configured to receive a feedback voltage, a reference signal, and the measured primary current and generate a control signal for the semiconductor switch dependent on the feedback voltage, the reference signal, and the measured primary current. The semiconductor switch switches on and off cyclically in CCM operation.
摘要翻译：提出了一种用于控制反激式转换器的方法和装置。反激转换器包括变压器，耦合到变压器的初级绕组的半导体开关，耦合到半导体开关的电流测量电路，与变压器的次级绕组串联耦合的二极管和控制器。控制器配置为接收反馈电压，参考信号和测量的初级电流，并根据反馈电压，参考信号和测量的初级电流产生用于半导体开关的控制信号。半导体开关在CCM操作中循环打开和关闭。

9. 发明授权

US09960686B2 System and method for detecting a loss of AC power in a switched-mode power supply 有权
公开(公告)号：US09960686B2
公开(公告)日：2018-05-01
申请号：US14929029
申请日：2015-10-30
申请人： Infineon Technologies Austria AG
发明人： Weifu Yu , Nitin Agarwal , Mingping Mao , Guoxing Zhang
IPC分类号： H02M3/335 , H02M1/36 , H02M1/42 , H02M1/00
CPC分类号： H02M3/33507 , H02M1/36 , H02M1/4225 , H02M2001/007 , H02M2001/0096 , Y02B70/126
摘要： In accordance with an embodiment, a method of operating a power supply includes detecting a loss of at least one of an AC input voltage an AC input power at an input of the power supply, and increasing a switching frequency of the power supply upon detection of the loss of the AC input voltage or AC input power.

10. 发明授权

US09570994B1 Adjustable blanking time for overload protection for switch-mode power supplies 有权
标题翻译：可调消隐时间用于开关电源的过载保护
公开(公告)号：US09570994B1
公开(公告)日：2017-02-14
申请号：US14823860
申请日：2015-08-11
申请人： Infineon Technologies Austria AG
发明人： Mingping Mao , Xiaowu Gong
IPC分类号： H02M3/335
CPC分类号： H02M3/33546 , H02M1/32 , H02M3/33507
摘要： A blanking time for a switch-mode power supply controller includes a first blanking time interval and a second blanking time interval. During the first blanking time interval, the time to charge the feedback voltage at the feedback input of the switch-mode power supply is measured, and a timer setting time is stored based on the measured time. During the second time interval, a series of charge cycles is used. At each charge cycle, the feedback voltage is discharged and then allowed to charge. If, after being discharged, the feedback voltage reaches a voltage threshold during the timer setting time, a counter value is incremented and the next cycle begins. If the feedback voltage does not reach the voltage threshold within the timer setting time, the blanking time ends. If the counter value reaches a count threshold, a shutdown mode is initiated.
摘要翻译：开关模式电源控制器的消隐时间包括第一消隐时间间隔和第二消隐时间间隔。在第一消隐时间间隔期间，测量在开关模式电源的反馈输入端对反馈电压充电的时间，并且基于测量的时间来存储定时器设置时间。在第二时间间隔期间，使用一系列充电周期。在每个充电周期，反馈电压被放电，然后允许充电。如果在定时器设定时间内，放电后反馈电压达到电压阈值，则计数器值递增，下一个周期开始。如果反馈电压在定时器设定时间内未达到电压阈值，则消隐时间结束。如果计数器值达到计数阈值，则启动关机模式。

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