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71. 发明授权

US07646184B2 Method and apparatus for maintaining a constant load current with line voltage in a switch mode power supply 有权
标题翻译：用于在开关模式电源中用线电压维持恒定负载电流的方法和装置
公开(公告)号：US07646184B2
公开(公告)日：2010-01-12
申请号：US11784560
申请日：2007-04-06
申请人： Balu Balakrishnan , Alex B. Djenguerian , Kent Wong , David Michael Hugh Matthews
发明人： Balu Balakrishnan , Alex B. Djenguerian , Kent Wong , David Michael Hugh Matthews
IPC分类号： G05F1/40
CPC分类号： H02M3/33523 , H02M3/33507 , H02M2001/0009 , H03K17/0822
摘要： A power supply including a regulation circuit that maintains an approximately constant load current with line voltage. In one embodiment, a regulation circuit includes a semiconductor switch and current sense circuitry to sense the current in the semiconductor switch. The current sense circuitry has a current limit threshold. The regulation circuit current limit threshold is varied from a first level to a second level during the time when the semiconductor switch is on. One embodiment of the regulation circuit is used in a power supply having an output characteristic having an approximately constant output voltage below an output current threshold and an approximately constant output current below an output voltage threshold.
摘要翻译：一种电源，包括一个调节电路，该电路用线路电压保持大致恒定的负载电流。在一个实施例中，调节电路包括用于感测半导体开关中的电流的半导体开关和电流检测电路。电流检测电路具有电流限制阈值。在半导体开关导通的时间期间，调节电路电流限制阈值从第一电平变化到第二电平。调节电路的一个实施例用于具有低于输出电流阈值的近似恒定的输出电压和低于输出电压阈值的近似恒定的输出电流的输出特性的电源。

72. 发明申请

US20090140710A1 METHOD AND APPARATUS FOR A HIGH VOLTAGE POWER SUPPLY CIRCUIT 有权
标题翻译：高压电源电路的方法和装置
公开(公告)号：US20090140710A1
公开(公告)日：2009-06-04
申请号：US12347317
申请日：2008-12-31
申请人： David Michael Hugh Matthews
发明人： David Michael Hugh Matthews
IPC分类号： G05F1/40
CPC分类号： H02M7/062
摘要： A high voltage power supply method and apparatus is disclosed. An example power supply circuit includes a rectifier circuit coupled to receive an AC input voltage. A switchmode power converter circuit is coupled to the rectifier circuit to receive a rectified input voltage to generate a regulated output voltage. A switch is coupled between the rectifier circuit and the switchmode power converter circuit. A sense circuit is coupled to detect the AC input voltage. The sense circuit is coupled to turn off the switch when an absolute value of the AC input voltage exceeds a first threshold value. The sense circuit is coupled to turn on the switch when the absolute value of the AC input voltage is below a second threshold value.
摘要翻译：公开了一种高压电源方法和装置。示例电源电路包括耦合以接收AC输入电压的整流电路。开关模式功率转换器电路耦合到整流器电路以接收经整流的输入电压以产生稳定的输出电压。开关耦合在整流器电路和开关模式功率转换器电路之间。耦合感测电路以检测AC输入电压。当AC输入电压的绝对值超过第一阈值时，感测电路被耦合以关闭开关。当AC输入电压的绝对值低于第二阈值时，感测电路被耦合以接通开关。

73. 发明授权

US07193865B2 Switched mode power supply responsive to current derived from voltage across energy transfer element input 失效
标题翻译：开关模式电源响应于跨越能量传输元件输入的电压导出的电流
公开(公告)号：US07193865B2
公开(公告)日：2007-03-20
申请号：US11313126
申请日：2005-12-19
申请人： Balu Balakrishnan , David Michael Hugh Matthews
发明人： Balu Balakrishnan , David Michael Hugh Matthews
IPC分类号： H02M3/335
CPC分类号： H02M3/335 , H02M3/33507 , H02M2001/0009
摘要： A switched mode power supply having a regulated reflected voltage. In one circuit, a power switch is coupled between first and second electrical terminals. An energy transfer element is coupled to the first electrical terminal of the power switch. A power supply rail is coupled to the second electrical terminal. A control circuit is coupled to the energy transfer element and to the power switch. The control circuit is to switch the power switch in response to a signal derived from a voltage at the energy transfer element to regulate an output of the circuit.
摘要翻译：具有调节的反射电压的开关模式电源。在一个电路中，功率开关耦合在第一和第二电端子之间。能量传递元件耦合到电源开关的第一电端子。电源轨耦合到第二电端子。控制电路耦合到能量传递元件和电源开关。控制电路是响应于从能量传递元件的电压导出的信号来切换电源开关，以调节电路的输出。

74. 发明授权

US06995986B2 Switched mode power supply responsive to current derived from voltage across energy transfer element input 失效
公开(公告)号：US06995986B2
公开(公告)日：2006-02-07
申请号：US11065330
申请日：2005-02-23
申请人： Balu Balakrishnan , David Michael Hugh Matthews
发明人： Balu Balakrishnan , David Michael Hugh Matthews
IPC分类号： H02M3/335
CPC分类号： H02M3/335 , H02M3/33507 , H02M2001/0009
摘要： A switched mode power supply having a regulated reflected voltage. In one embodiment, a switched mode power supply includes a power supply regulator coupled between a positive input supply rail of the power supply and a primary winding of an energy transfer element. The reflected voltage across the primary winding of the transfer element is related to the output voltage across a secondary winding of the energy transfer element according to the turns ratio of the energy transfer element. The power supply regulator is coupled to regulate the reflected voltage across the primary winding, thereby regulating the output voltage across secondary winding. In one embodiment, the reflected voltage across the primary winding is sensed through a current representative of the reflected voltage received by the power supply regulator.

75. 发明授权

US06992471B2 Method and apparatus for trimming current limit and frequency to maintain a constant maximum power 失效
标题翻译：用于调整电流限制和频率以保持恒定最大功率的方法和装置
公开(公告)号：US06992471B2
公开(公告)日：2006-01-31
申请号：US11071380
申请日：2005-03-02
申请人： Balu Balakrishnan , Alex B. Djenguerian , David Michael Hugh Matthews
发明人： Balu Balakrishnan , Alex B. Djenguerian , David Michael Hugh Matthews
IPC分类号： G05F1/40
CPC分类号： H02M1/32 , G05F3/262 , H02M3/156 , H02M3/33507 , H02M7/003 , H02M2001/0093 , H03K17/0822
摘要： Methods and apparatuses to trim current limit (Ip ) and frequency (f) to maintain a constant maximum power. In one aspect of the invention, a power supply regulator having a peak current limit detection threshold and an operating frequency is disclosed. The peak current limit threshold or the operating frequency are adjusted specifically to maintain the Ipm·fn product substantially constant from one power supply controller to another where m is substantially equal to 2 and n is substantially equal to 1. In another aspect of the invention, the power supply regulator has a control circuit having a control threshold current. The peak current limit threshold or the operating frequency are adjusted specifically to maintain the product of Ipm·fn divided by the control threshold current substantially constant from one power supply controller to another where m is substantially equal to 2 and n is substantially equal to 1.
摘要翻译：限制电流极限（I SUB）和频率（f）的方法和装置以维持恒定的最大功率。在本发明的一个方面，公开了具有峰值电流限制检测阈值和工作频率的电源调节器。峰值电流限制阈值或工作频率被特别地调整，以保持从一个电源控制器基本上恒定的电压I n 到另一个，其中m基本上等于2，并且n基本上等于1.在本发明的另一方面，电源调节器具有具有控制阈值电流的控制电路。对峰值电流限制阈值或工作频率进行特殊调整，以保持I / O的乘积除以控制阈值电流从一个电源控制器基本上恒定到另一个，其中m基本上等于2，并且n基本上等于1。

76. 发明授权

US06747443B2 Method and apparatus for trimming current limit and frequency to maintain a constant maximum power 有权
标题翻译：用于调整电流限制和频率以保持恒定最大功率的方法和装置
公开(公告)号：US06747443B2
公开(公告)日：2004-06-08
申请号：US10218763
申请日：2002-08-14
申请人： Balu Balakrishnan , Alex B. Djenguerian , David Michael Hugh Matthews
发明人： Balu Balakrishnan , Alex B. Djenguerian , David Michael Hugh Matthews
IPC分类号： G05F140
CPC分类号： H02M1/32 , G05F3/262 , H02M3/156 , H02M3/33507 , H02M7/003 , H02M2001/0093 , H03K17/0822
摘要： Methods and apparatuses to trim current limit (Ip) and frequency (f) to maintain a constant maximum power. In one aspect of the invention, a power supply regulator having a peak current limit detection threshold and an operating frequency is disclosed. The peak current limit threshold or the operating frequency are adjusted specifically to maintain the Ipm·fn product substantially constant from one power supply controller to another where m is substantially equal to 2 and n is substantially equal to 1. In another aspect of the invention, the power supply regulator has a control circuit having a control threshold current. The peak current limit threshold or the operating frequency are adjusted specifically to maintain the product of Ipm·fn divided by the control threshold current substantially constant from one power supply controller to another where m is substantially equal to 2 and n is substantially equal to 1.
摘要翻译：限制电流限制（Ip）和频率（f）以维持恒定最大功率的方法和装置。电源调节器具有峰值电流限制检测阈值和工作频率。峰值电流限制阈值或工作频率在制造过程中被修整，专门用于在从一个电源控制器到另一个电源控制器的运行期间保持Ip .f 产品基本上恒定，其中m基本上等于2，并且n基本相等电源调节器具有具有控制阈值电流的控制电路。峰值电流限制阈值或工作频率在制造过程中被修整，专门用于将Ip .f 的乘积除以从一个电源控制器到另一个电源控制器的控制阈值电流基本恒定，其中m基本上等于2 并且n基本上等于1。

77. 发明授权

US06597586B2 Switched mode power supply responsive to current derived from voltage across energy transfer element input 失效
公开(公告)号：US06597586B2
公开(公告)日：2003-07-22
申请号：US10241093
申请日：2002-09-11
申请人： Balu Balakrishnan , David Michael Hugh Matthews
发明人： Balu Balakrishnan , David Michael Hugh Matthews
IPC分类号： H02M3335
CPC分类号： H02M3/335 , H02M3/33507 , H02M2001/0009
摘要： A switched mode power supply having a regulated reflected voltage. In one embodiment, a switched mode power supply includes a power supply regulator coupled between a positive input supply rail of the power supply and a primary winding of an energy transfer element. The reflected voltage across the primary winding of the transfer element is related to the output voltage across a secondary winding of the energy transfer element according to the turns ratio of the energy transfer element. The power supply regulator is coupled to regulate the reflected voltage across the primary winding, thereby regulating the output voltage across secondary winding. In one embodiment, the reflected voltage across the primary winding is sensed through a current representative of the reflected voltage received by the power supply regulator.

78. 发明授权

US06480399B2 Switched mode power supply responsive to current derived from voltage across energy transfer element input 有权
标题翻译：开关模式电源响应于跨越能量传输元件输入的电压导出的电流
公开(公告)号：US06480399B2
公开(公告)日：2002-11-12
申请号：US09849191
申请日：2001-05-04
申请人： Balu Balakrishnan , David Michael Hugh Matthews
发明人： Balu Balakrishnan , David Michael Hugh Matthews
IPC分类号： H02M3335
CPC分类号： H02M3/335 , H02M3/33507 , H02M2001/0009
摘要： A switched mode power supply having a regulated reflected voltage. In one embodiment, a switched mode power supply includes a power supply regulator coupled between a positive input supply rail of the power supply and a primary winding of an energy transfer element. The reflected voltage across the primary winding of the transfer element is related to the output voltage across a secondary winding of the energy transfer element according to the turns ratio of the energy transfer element. The power supply regulator is coupled to regulate the reflected voltage across the primary winding, thereby regulating the output voltage across secondary winding. In one embodiment, the reflected voltage across the primary winding is sensed through a current representative of the reflected voltage received by the power supply regulator.
摘要翻译：具有调节的反射电压的开关模式电源。在一个实施例中，开关模式电源包括耦合在电源的正输入电源轨和能量传递元件的初级绕组之间的电源调节器。传输元件的初级绕组两端的反射电压与能量转移元件的匝数比相关的能量传递元件的次级绕组上的输出电压有关。电源调节器耦合以调节初级绕组两端的反射电压，从而调节次级绕组的输出电压。在一个实施例中，通过表示由电源调节器接收的反射电压的电流来感测初级绕组两端的反射电压。

79. 发明授权

US06233161B1 Switched mode power supply responsive to voltage across energy transfer element 有权
标题翻译：开关模式电源响应跨能量传输元件的电压
公开(公告)号：US06233161B1
公开(公告)日：2001-05-15
申请号：US09517461
申请日：2000-03-02
申请人： Balu Balakrishnan , David Michael Hugh Matthews
发明人： Balu Balakrishnan , David Michael Hugh Matthews
IPC分类号： H02M3335
CPC分类号： H02M3/335
摘要： A switched mode power supply having a regulated reflected voltage. In one embodiment, a switched mode power supply includes a power supply regulator coupled between a positive input supply rail of the power supply and a primary winding of an energy transfer element. The reflected voltage across the primary winding of the transfer element is related to the output voltage across a secondary winding of the energy transfer element according to the turns ratio of the energy transfer element. The power supply regulator is coupled to regulate the reflected voltage across the primary winding, thereby regulating the output voltage across secondary winding. In one embodiment, the reflected voltage across the primary winding is sensed through a current representative of the reflected voltage received by the power supply regulator.
摘要翻译：具有调节的反射电压的开关模式电源。在一个实施例中，开关模式电源包括耦合在电源的正输入电源轨和能量传递元件的初级绕组之间的电源调节器。传输元件的初级绕组两端的反射电压与能量转移元件的匝数比相关的能量传递元件的次级绕组上的输出电压有关。电源调节器耦合以调节初级绕组两端的反射电压，从而调节次级绕组的输出电压。在一个实施例中，通过表示由电源调节器接收的反射电压的电流来感测初级绕组两端的反射电压。

80. 发明授权

US08587969B2 Method and apparatus for on/off control of a power converter 失效
标题翻译：用于电力转换器的开/关控制的方法和装置
公开(公告)号：US08587969B2
公开(公告)日：2013-11-19
申请号：US13234058
申请日：2011-09-15
申请人： Alex B. Djenguerian , Balu Balakrishnan , Erdem Bircan , David Michael Hugh Matthews
发明人： Alex B. Djenguerian , Balu Balakrishnan , Erdem Bircan , David Michael Hugh Matthews
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M3/157
摘要： A power converter is disclosed. An example power converter includes an energy transfer element coupled between a power converter input and a power converter output. A power switch is coupled to the energy transfer element and the power converter input. A feedback sampling circuit is coupled to receive a feedback signal representative of the power converter output to generate feedback signal samples during switching cycles. A switch conduction scheduling circuit is coupled to determine enabling and disabling of the power switch in future switching cycles in response to the feedback signal samples from a present switching cycle and one or more past switching cycles. A switch conduction control circuit is coupled to enable or disable conduction of the power switch during a switching cycle to control an amount of energy transferred from the power converter input to the power converter output.
摘要翻译：公开了一种功率转换器。示例性功率转换器包括耦合在功率转换器输入和功率转换器输出之间的能量传递元件。功率开关耦合到能量传递元件和功率转换器输入。耦合反馈采样电路以接收表示功率转换器输出的反馈信号，以在开关周期期间产生反馈信号采样。耦合开关导通调度电路以响应于来自当前开关周期和一个或多个过去开关周期的反馈信号样本，在将来的开关周期中确定功率开关的使能和禁止。开关导通控制电路被耦合以在开关周期期间启用或禁用电力开关的导通，以控制从功率转换器输入传递到功率转换器输出的能量的量。

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