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1. 发明授权

US08537577B2 Method and apparatus to select a parameter/mode based on a measurement during an initialization period 有权
标题翻译：在初始化期间基于测量选择参数/模式的方法和装置
公开(公告)号：US08537577B2
公开(公告)日：2013-09-17
申请号：US13601615
申请日：2012-08-31
申请人： Alex B. Djenguerian , Robert J. Mayell , Kent Wong
发明人： Alex B. Djenguerian , Robert J. Mayell , Kent Wong
IPC分类号： H02M1/00 , G05F1/00
CPC分类号： H02M3/33515 , H02M3/33523
摘要： A power supply includes an energy transfer element coupled between an input and an output. A switch is coupled to an input of the energy transfer element. A threshold detection circuit includes in an integrated circuit coupled to measure a signal from a resistive external circuit coupled between fourth and first external terminals of the integrated circuit during an initialization period after the fourth external terminal has been charged to a supply threshold value. A regulator circuit is coupled between second and fourth external terminals of the integrated circuit. The regulator circuit is coupled to charge the fourth external terminal to the supply threshold value during the initialization period. A selection circuit is coupled to the threshold detection circuit to select a parameter/mode of the integrated circuit in response to the measured signal.
摘要翻译：电源包括耦合在输入和输出之间的能量传递元件。开关耦合到能量传递元件的输入端。阈值检测电路包括集成电路，其被耦合以在第四外部端子已经被充电到电源阈值之后的初始化时段期间测量来自耦合在集成电路的第四和第一外部端子之间的电阻外部电路的信号。调节器电路耦合在集成电路的第二和第四外部端子之间。在初始化期间，调节器电路被耦合以将第四外部端子充电到电源阈值。选择电路耦合到阈值检测电路以响应于测量的信号选择集成电路的参数/模式。

2. 发明申请

US20120140528A1 FORWARD CONVERTER TRANSFORMER SATURATION PREVENTION 失效
标题翻译：前转换器变压器饱和防护
公开(公告)号：US20120140528A1
公开(公告)日：2012-06-07
申请号：US13371237
申请日：2012-02-10
申请人： Robert J. Mayell
发明人： Robert J. Mayell
IPC分类号： H02M3/335
CPC分类号： H02M1/40 , H02M1/36 , H02M3/3353 , H02M2003/1566
摘要： A power converter in one aspect limits the magnetic flux in a transformer. A control circuit included in the power converter includes a pulse width modulator, a logic circuit and a saturation prevention circuit. The saturation prevention circuit asserts a first signal when a first integral value of the input voltage reaches a first threshold value and asserts a second signal after a delay time that begins when a difference between the first integral value and a second integral value of a reset voltage of the transformer falls to a second threshold value. The logic circuit turns off the switch when the first signal is asserted, and allows the switch to turn on and off in accordance with the pulse width modulator when the second signal is asserted.
摘要翻译：在一个方面的功率转换器限制了变压器中的磁通量。包括在功率转换器中的控制电路包括脉宽调制器，逻辑电路和饱和防止电路。当输入电压的第一积分值达到第一阈值时，饱和度防止电路确定第一信号，并且在延迟时间之后断定第二信号，该延迟时间从复位电压的第一积分值和第二积分值之间的差开始的变压器下降到第二阈值。当第一个信号被置位时，逻辑电路关闭开关，并且当第二个信号被置位时，根据脉冲宽度调制器允许开关导通和关断。

3. 发明授权

US07570500B2 Method and apparatus to improve regulation of a power supply 失效
标题翻译：改善电源调节的方法和装置
公开(公告)号：US07570500B2
公开(公告)日：2009-08-04
申请号：US12047195
申请日：2008-03-12
申请人： Robert J. Mayell , Chan Woong Park
发明人： Robert J. Mayell , Chan Woong Park
IPC分类号： H02M1/12
CPC分类号： H02M3/3381 , H02M3/3385
摘要： Techniques are disclosed to regulate a power supply with a compensation signal generation circuit. One example regulated power supply includes a sense circuit coupled to sense an output voltage of the regulated power supply. The regulated power supply also includes a switching power converter circuit, which includes a switch coupled to be switched in response to a control signal received from the sense circuit to regulate the output voltage of the regulated power supply. The regulated power supply also includes a compensation signal generation circuit coupled to receive a switching signal representative of a switching of the switch in the switching power converter circuit. The compensation signal generation circuit is to generate a compensation signal to approximate a load current to be delivered from an output of the regulated power supply. The compensation signal is to be received by the sense circuit to modify the control signal.
摘要翻译：公开了用补偿信号发生电路调节电源的技术。一个示例性调节电源包括耦合以感测调节电源的输出电压的感测电路。调节电源还包括开关功率转换器电路，其包括耦合以响应于从感测电路接收的控制信号而被切换的开关，以调节稳压电源的输出电压。调节电源还包括补偿信号发生电路，其耦合以接收代表开关功率转换器电路中的开关的开关的开关信号。补偿信号发生电路用于产生补偿信号，以近似从调节电源的输出传递的负载电流。补偿信号由感测电路接收以修改控制信号。

4. 发明授权

US08130517B2 Forward converter transformer saturation prevention 有权
标题翻译：正转变压器饱和预防
公开(公告)号：US08130517B2
公开(公告)日：2012-03-06
申请号：US13090160
申请日：2011-04-19
申请人： Robert J. Mayell
发明人： Robert J. Mayell
IPC分类号： H02H7/122 , H02M3/335
CPC分类号： H02M1/40 , H02M1/36 , H02M3/3353 , H02M2003/1566
摘要： A power converter in one aspect limits the magnetic flux in a transformer. A control circuit included in the power converter includes a pulse width modulator, logic circuits and saturation prevention circuits. The saturation prevention circuits assert a first signal when a first integral value of the input voltage reaches a first threshold value and assert a second signal after a delay time that begins when a difference between the first integral value and a second integral value of a reset voltage of the transformer falls to a second threshold value. The logic circuits turn off the switch when the first signal is asserted, and allow the switch to turn on and off in accordance with the pulse width modulator when the second signal is asserted.
摘要翻译：在一个方面的功率转换器限制了变压器中的磁通量。包括在功率转换器中的控制电路包括脉宽调制器，逻辑电路和饱和防止电路。当输入电压的第一积分值达到第一阈值时，饱和防止电路断言第一信号，并且在延迟时间之后断定第二信号，该延迟时间从复位电压的第一积分值和第二积分值之间的差开始的变压器下降到第二阈值。当第一个信号被置位时，逻辑电路关闭开关，并且当第二个信号被置位时，根据脉冲宽度调制器允许开关导通和关断。

5. 发明申请

US20110063880A1 FORWARD CONVERTER TRANSFORMER SATURATION PREVENTION 有权
标题翻译：前转换器变压器饱和防护
公开(公告)号：US20110063880A1
公开(公告)日：2011-03-17
申请号：US12950783
申请日：2010-11-19
申请人： Robert J. Mayell
发明人： Robert J. Mayell
IPC分类号： H02M3/335
CPC分类号： H02M1/40 , H02M1/36 , H02M3/3353 , H02M2003/1566
摘要： A control circuit for use in a power converter in one aspect limits the magnetic flux in a transformer. Controlled current sources produce a first current that is proportional to an input voltage of the power converter and a second current that is proportional to a reset voltage of the transformer. An integrating capacitor is charged with the first current and discharged with the second current, where a voltage on the capacitor is representative of the magnetic flux in the transformer. A logic circuit is adapted to turn off the switch when the voltage on the integrating capacitor is greater than or equal to a first threshold voltage, and to allow the switch to turn on and off in accordance with a pulse width modulation signal after a delay time that begins when the integrating capacitor discharges to a second threshold voltage.
摘要翻译：在一个方面中用于功率转换器的控制电路限制了变压器中的磁通量。受控电流源产生与功率转换器的输入电压成比例的第一电流和与变压器的复位电压成比例的第二电流。积分电容器用第一电流充电并用第二电流放电，其中电容器上的电压代表变压器中的磁通量。逻辑电路适于当积分电容器上的电压大于或等于第一阈值电压时关断开关，并且在延迟时间之后允许开关根据脉宽调制信号导通和截止当积分电容器放电到第二阈值电压时开始。

6. 发明授权

US07859869B2 Forward converter transformer saturation prevention 有权
标题翻译：正转变压器饱和预防
公开(公告)号：US07859869B2
公开(公告)日：2010-12-28
申请号：US12234525
申请日：2008-09-19
申请人： Robert J. Mayell
发明人： Robert J. Mayell
IPC分类号： H02H7/122 , H02M3/335
CPC分类号： H02M1/40 , H02M1/36 , H02M3/3353 , H02M2003/1566
摘要： A control circuit for use in a power converter in one aspect limits the magnetic flux in a transformer of a switching power converter. A first controlled current source has a first current that is substantially directly proportional to an input voltage to be applied to a winding of the transformer. A second controlled current source has a second current that is substantially directly proportional to a reset voltage to be applied to the winding of the transformer. A first switch is adapted to charge an integrating capacitor with the first current while the input voltage is applied to the winding of the transformer. A second switch is adapted to discharge the integrating capacitor with the second current when the reset voltage is applied to the winding of the transformer. A third switch is adapted to remove and to prevent application of the input voltage to the winding of the transformer.
摘要翻译：在一个方面中用于功率转换器的控制电路限制了开关功率转换器的变压器中的磁通量。第一受控电流源具有与要施加到变压器的绕组的输入电压基本成正比的第一电流。第二受控电流源具有与要施加到变压器的绕组的复位电压基本成正比的第二电流。第一开关适于对具有第一电流的积分电容器充电，同时将输入电压施加到变压器的绕组。当复位电压施加到变压器的绕组时，第二开关适于将积分电容器以第二电流放电。第三开关适于去除和防止将输入电压施加到变压器的绕组上。

7. 发明授权

US07813098B2 Method and apparatus for an in-rush current limiting circuit 有权
标题翻译：浪涌电流限制电路的方法和装置
公开(公告)号：US07813098B2
公开(公告)日：2010-10-12
申请号：US12429756
申请日：2009-04-24
申请人： Robert J. Mayell
发明人： Robert J. Mayell
IPC分类号： H02H9/02
CPC分类号： H02H9/001
摘要： An in-rush current limiting circuit is disclosed. An apparatus according to aspects of the present invention includes a power switch having a first, second and third terminals. A capacitor having a first terminal and a second terminal is also included. The second terminal of the capacitor is coupled to the first terminal of a current source. The second terminal of the current source is coupled to a second input terminal of the in-rush current limit circuit. A power switch is also included. The first terminal of the power switch is coupled to the anode of a diode. The cathode of the diode is connected to the first terminal of the current source. The second terminal of the power switch is coupled to a second input terminal of the in-rush current limit circuit. The third terminal of the power switch is coupled to be responsive to a voltage across the current source circuit in response to a rate of change of voltage between first and second terminals of the power switch.
摘要翻译：公开了一种浪涌电流限制电路。根据本发明的方面的装置包括具有第一，第二和第三端子的电源开关。还包括具有第一端子和第二端子的电容器。电容器的第二端子耦合到电流源的第一端子。电流源的第二端子耦合到浪涌电流限制电路的第二输入端。还包括电源开关。电源开关的第一端耦合到二极管的阳极。二极管的阴极连接到电流源的第一端。电源开关的第二端子耦合到浪涌电流限制电路的第二输入端。电源开关的第三端子被耦合以响应于电源开关的第一和第二端子之间的电压变化率来响应电流源电路两端的电压。

8. 发明申请

US20070273681A1 Method and apparatus to power light emitting diode arrays 审中-公开
标题翻译：为发光二极管阵列供电的方法和装置
公开(公告)号：US20070273681A1
公开(公告)日：2007-11-29
申请号：US11440606
申请日：2006-05-24
申请人： Robert J. Mayell
发明人： Robert J. Mayell
IPC分类号： G09G5/00
CPC分类号： H05B33/0827 , H05B33/0815
摘要： A light emitting diode array powering method and apparatus is disclosed. An apparatus according to aspects of the present invention includes a power supply circuit having input terminals and output terminals. The input terminals of the power supply circuit are to be coupled to receive a supply voltage. A plurality of loads is to be coupled between the output terminals. The power supply circuit is coupled to provide an output voltage between the output terminals to be applied across each one of the plurality of loads coupled between the output terminals. A feedback selector circuit is coupled between the power supply circuit and the plurality of loads. The feedback selector circuit is coupled to receive a feedback signal from each one of the plurality of loads. The power supply circuit is coupled to be responsive to only one of the feedback signals at any one time.
摘要翻译：公开了一种发光二极管阵列供电方法和装置。根据本发明的方面的装置包括具有输入端和输出端的电源电路。电源电路的输入端子将被耦合以接收电源电压。多个负载将被耦合在输出端子之间。电源电路被耦合以提供输出端子之间的输出电压，以将被施加到耦合在输出端子之间的多个负载中的每一个的负载。反馈选择器电路耦合在电源电路和多个负载之间。反馈选择器电路被耦合以从多个负载中的每一个接收反馈信号。电源电路被耦合以在任何一个时刻仅响应于一个反馈信号。

9. 发明申请

US20120320639A1 METHOD AND APPARATUS TO SELECT A PARAMETER/MODE BASED ON A MEASUREMENT DURING AN INITIALIZATION PERIOD 有权
标题翻译：在初始化期间根据测量选择参数/模式的方法和装置
公开(公告)号：US20120320639A1
公开(公告)日：2012-12-20
申请号：US13601615
申请日：2012-08-31
申请人： Alex B. Djenguerian , Robert J. Mayell , Kent Wong
发明人： Alex B. Djenguerian , Robert J. Mayell , Kent Wong
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M3/33523
摘要： A power supply includes an energy transfer element coupled between an input and an output. A switch is coupled to an input of the energy transfer element. A threshold detection circuit includes in an integrated circuit coupled to measure a signal from a resistive external circuit coupled between fourth and first external terminals of the integrated circuit during an initialization period after the fourth external terminal has been charged to a supply threshold value. A regulator circuit is coupled between second and fourth external terminals of the integrated circuit. The regulator circuit is coupled to charge the fourth external terminal to the supply threshold value during the initialization period. A selection circuit is coupled to the threshold detection circuit to select a parameter/mode of the integrated circuit in response to the measured signal.
摘要翻译：电源包括耦合在输入和输出之间的能量传递元件。开关耦合到能量传递元件的输入端。阈值检测电路包括集成电路，其被耦合以在第四外部端子已经被充电到电源阈值之后的初始化时段期间测量来自耦合在集成电路的第四和第一外部端子之间的电阻外部电路的信号。调节器电路耦合在集成电路的第二和第四外部端子之间。在初始化期间，调节器电路被耦合以将第四外部端子充电到电源阈值。选择电路耦合到阈值检测电路以响应于测量的信号选择集成电路的参数/模式。

10. 发明申请

US20120099350A1 METHOD AND APPARATUS TO SELECT A PARAMETER/MODE BASED ON A MEASUREMENT DURING AN INITIALIZATION PERIOD 失效
标题翻译：在初始化期间根据测量选择参数/模式的方法和装置
公开(公告)号：US20120099350A1
公开(公告)日：2012-04-26
申请号：US13343579
申请日：2012-01-04
申请人： Alex B. Djenguerian , Robert J. Mayell , Kent Wong
发明人： Alex B. Djenguerian , Robert J. Mayell , Kent Wong
IPC分类号： H02M1/00
CPC分类号： H02M3/33515 , H02M3/33523
摘要： An integrated circuit includes a threshold detection circuit that is coupled to measure a signal from a first resistive external circuit coupled between a fourth external terminal of the integrated circuit and a first external terminal of the integrated circuit during a duration of an initialization period after the fourth external terminal has been charged to a supply threshold value. A regulator circuit is coupled to charge the fourth external terminal to the supply threshold value during the initialization period of the integrated circuit. A selection circuit is coupled to the threshold detection circuit to select a parameter/mode of the integrated circuit in response to the signal measured from the first resistive external circuit during the duration of the initialization period after the fourth external terminal has been charged to the supply threshold value.
摘要翻译：一种集成电路包括阈值检测电路，该阈值检测电路被耦合以测量来自集成电路的第四外部端子和集成电路的第一外部端子之间的第一电阻外部电路的信号，在第四个外部端子已经被充电到电源阈值。耦合到稳压器电路，以在集成电路的初始化期间对第四外部端子充电至电源阈值。选择电路耦合到阈值检测电路，以在第四外部端子已经被充电到电源之后的初始化时段期间响应于从第一电阻外部电路测量的信号来选择集成电路的参数/模式阈值。

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