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81. 发明授权

US06462971B1 Method and apparatus providing a multi-function terminal for a power supply controller 有权
公开(公告)号：US06462971B1
公开(公告)日：2002-10-08
申请号：US09405209
申请日：1999-09-24
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
IPC分类号： H02M324
CPC分类号： H02M1/32 , H02M3/33507
摘要： A power supply controller having a multi-function terminal. In one embodiment, a power supply controller for switched mode power supply includes a drain terminal, a source terminal, a control terminal and a multi-function terminal. The multi-function terminal may be configured in a plurality of ways providing any one or some of a plurality of functions including on/off control, external current limit adjustments, under-voltage detection, over-voltage detection and maximum duty cycle adjustment. The operation of the multi-function terminal varies depending on whether a positive or negative current flows through the multi-function terminal. A short-circuit to ground from the multi-function terminal enables the power supply controller. A short-circuit to a supply voltage from the multi-function terminal disables the power supply controller. The current limit of an internal power switch of the power supply controller may be adjusted by externally setting a negative current from the multi-function terminal. The multi-function terminal may also be coupled to the input DC line voltage of the power supply through a resistance to detect an under-voltage condition, an over-voltage condition and/or adjust the maximum duty cycle of power supply controller. Synchronization of the oscillator of the power supply controller may also be realized by switching the multi-function terminal to power or ground at the desired times.

82. 发明授权

US06414471B1 Off-line converter with digital control 有权
公开(公告)号：US06414471B1
公开(公告)日：2002-07-02
申请号：US09927273
申请日：2001-08-10
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
IPC分类号： G05F140
CPC分类号： H02M3/33507
摘要： A DC to DC converter comprising an energy storage element comprising an energy storage element input and an energy storage element output, the energy storage element input coupled to receive a first power level and the energy storage element output providing a second power level. The converter also comprises a feedback circuit comprising a feedback input and a feedback output, the feedback input coupled to the energy storage element output. The converter further comprises a regulator circuit comprising a regulator circuit feedback input and a regulator circuit output, the regulator circuit feedback input coupled to the feedback output and the regulator circuit output coupled to the energy storage element input, the regulator circuit regulating the input of the first power level to the energy storage element input. When a signal at the regulator circuit feedback input is above a threshold level the regulator circuit ceasing operation and when the signal at the regulator circuit feedback input is below the threshold level the regulator circuit is enabled.

83. 发明授权

US06304462B1 Method and apparatus providing a multi-function terminal for a power supply controller 有权
公开(公告)号：US06304462B1
公开(公告)日：2001-10-16
申请号：US09698926
申请日：2000-10-26
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
IPC分类号： H02M3335
CPC分类号： H02M1/32 , H02M3/33507
摘要： A power supply controller having a multi-function terminal. In one embodiment, a power supply controller for switched mode power supply includes a drain terminal, a source terminal, a control terminal and a multi-function terminal. The multi-function terminal may be configured in a plurality of ways providing any one or some of a plurality of functions including on/off control, external current limit adjustments, under-voltage detection, over-voltage detection and maximum duty cycle adjustment. The operation of the multi-function terminal varies depending on whether a positive or negative current flows through the multi-function terminal. A short-circuit to ground from the multi-function terminal enables the power supply controller. A short-circuit to a supply voltage from the multi-function terminal disables the power supply controller. The current limit of an internal power switch of the power supply controller may be adjusted by externally setting a negative current from the multi-function terminal. The multi-function terminal may also be coupled to the input DC line voltage of the power supply through a resistance to detect an under-voltage condition, an over-voltage condition and/or adjust the maximum duty cycle of power supply controller. Synchronization of the oscillator of the power supply controller may also be realized by switching the multi-function terminal to power or ground at the desired times.

84. 发明授权

US08248053B2 Off-line converter with digital control 失效
标题翻译：带数字控制的离线转换器
公开(公告)号：US08248053B2
公开(公告)日：2012-08-21
申请号：US13117982
申请日：2011-05-27
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
IPC分类号： G05F1/40
CPC分类号： H02M3/33515 , H02M3/157 , H02M3/335 , H02M3/33507 , H02M3/33523
摘要： A circuit for regulating the level at a power converter output is disclosed. An example circuit includes an input for receiving a feedback signal. The feedback signal has a first feedback state that represents a level that is above a threshold level and a second feedback state that represents a level that is below the threshold level. An oscillator is included that provides an oscillation signal that cycles between two states. A switch having a first terminal, a second terminal and a control terminal are also included. The switch is operable to couple or decouple the first terminal and the second terminal in response to a control signal received at the control terminal. The control signal is responsive to the oscillation signal and to the first and second feedback states.
摘要翻译：公开了一种用于调节功率转换器输出电平的电路。示例电路包括用于接收反馈信号的输入。反馈信号具有表示高于阈值电平的电平的第一反馈状态和表示低于阈值电平的电平的第二反馈状态。包括一个提供两个状态之间循环的振荡信号的振荡器。还包括具有第一端子，第二端子和控制端子的开关。该开关可操作以响应于在控制端接收的控制信号来耦合或去耦第一终端和第二终端。控制信号响应于振荡信号和第一和第二反馈状态。

85. 发明授权

US08222882B2 Power supply controller with input voltage compensation for efficiency and maximum power output 有权
标题翻译：电源控制器具有输入电压补偿效率和最大功率输出
公开(公告)号：US08222882B2
公开(公告)日：2012-07-17
申请号：US12363550
申请日：2009-01-30
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
IPC分类号： G05F5/00 , G05F1/00 , H02M3/335 , H03K5/01
CPC分类号： H02M3/33507 , H02M1/44 , H02M7/527 , H02M2001/007
摘要： A controller for a power supply includes a logic block and a time-to-frequency converter. The logic block is to generate a drive signal in response to a clock signal. The drive signal is to be coupled to control switching of a power switch of the power supply to regulate an output of the power supply. The time-to-frequency converter is coupled to the logic block and generates the clock signal having a frequency responsive to a time period of the drive signal.
摘要翻译：用于电源的控制器包括逻辑块和时间 - 频率转换器。逻辑块是响应于时钟信号产生驱动信号。驱动信号被耦合以控制电源的电源开关的切换以调节电源的输出。时间 - 频率转换器耦合到逻辑块，并产生具有响应于驱动信号的时间周期的频率的时钟信号。

86. 发明授权

US08184413B2 Fault condition protection 有权
标题翻译：故障条件保护
公开(公告)号：US08184413B2
公开(公告)日：2012-05-22
申请号：US12982652
申请日：2010-12-30
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
IPC分类号： H02H7/00
CPC分类号： H02M1/32 , B29C45/82 , B29C2045/824 , F16D31/02 , H02H7/1213 , H02M1/36 , H02M3/33507
摘要： A regulator for a switched mode power supply includes switching regulator logic, a counter and a switching transistor. The switching regulator logic is coupled to receive a feedback signal and to generate a switching signal in response. The feedback signal periodically cycles between a first state and a second state when the power supply operates normally. The counter is coupled to receive the feedback signal and an output of the counter indicates an auto-restart mode of the regulator in response to the feedback signal remaining in the first state for a predetermined count. The switching transistor is turned on and off in response to the switching signal when the output of the counter does not indicate the auto-restart mode and is disabled when the output of the counter indicates the auto-restart mode.
摘要翻译：用于开关模式电源的稳压器包括开关稳压器逻辑，计数器和开关晶体管。开关稳压器逻辑被耦合以接收反馈信号并且响应地产生开关信号。当电源正常工作时，反馈信号周期性地在第一状态和第二状态之间循环。计数器被耦合以接收反馈信号，并且计数器的输出指示响应于在第一状态下保持预定计数的反馈信号的调节器的自动重启模式。当计数器的输出不指示自动重启模式时，开关晶体管响应于开关信号而导通和截止，当计数器的输出指示自动重启模式时，开关晶体管被禁止。

87. 发明申请

US20120039097A1 METHOD AND APPARATUS FOR SENSING MULTIPLE VOLTAGE VALUES FROM A SINGLE TERMINAL OF A POWER CONVERTER CONTROLLER 有权
标题翻译：用于从电源转换器控制器的单个终端感测多个电压值的方法和装置
公开(公告)号：US20120039097A1
公开(公告)日：2012-02-16
申请号：US13279157
申请日：2011-10-21
申请人： Alex B. Djenguerian , Balu Balakrishnan
发明人： Alex B. Djenguerian , Balu Balakrishnan
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M1/08 , H02M1/32 , H02M1/36 , H02M3/24 , H02M3/33523 , H02M2001/0009
摘要： An example controller for a power converter includes a switching control coupled to switch a power switch of the power converter to control a transfer of energy from an input of the power converter to an output of the power converter. A sensor is coupled to sample a single terminal of the controller during a portion of an off time of the power switch to output a signal representative of an output voltage of the power converter. The sensor is further coupled to sample the single terminal during a portion of an on time of the power switch to output a signal representative of a line input voltage of the power converter. The switching control is responsive to the sensor.
摘要翻译：用于功率转换器的示例性控制器包括开关控制，其耦合以切换功率转换器的功率开关以控制从功率转换器的输入到功率转换器的输出的能量传递。耦合传感器以在电源开关的断开时间的一部分期间对控制器的单个端子进行采样，以输出表示功率转换器的输出电压的信号。传感器还被耦合以在功率开关的导通时间的一部分期间对单个端子进行采样，以输出表示功率转换器的线路输入电压的信号。切换控制响应于传感器。

88. 发明授权

US07710705B2 Method and apparatus providing final test and trimming for a power supply controller 有权
标题翻译：为电源控制器提供最终测试和修整的方法和设备
公开(公告)号：US07710705B2
公开(公告)日：2010-05-04
申请号：US12137453
申请日：2008-06-11
申请人： Balu Balakrishnan , Alex B. Djenguerian , Erdem Bircan
发明人： Balu Balakrishnan , Alex B. Djenguerian , Erdem Bircan
IPC分类号： H02H5/04 , G11C29/00
CPC分类号： G11C29/021 , G06F1/26 , G11C29/02 , H02M1/32 , H02M1/36 , H02M3/00 , H02M3/157
摘要： A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown circuit and a disable circuit. The trim circuit includes a programmable circuit connection that can be selected by the selector circuit by toggling a voltage on an external terminal such as for example a power supply terminal, a control terminal or a function terminal of the power supply controller. The programmable circuit connection in the trim circuit can be programmed by applying a programming voltage to the external terminal. The shutdown circuit shuts down the power supply controller if the temperature rises above an over temperature threshold voltage. The shutdown circuit includes adjustment circuitry that can be used to test the shutdown circuit. The adjustment circuitry can adjust and reduce the over temperature threshold of the power supply controller. Thus, the power supply controller can be tested without having to actually heat the part. The disable circuit includes a programmable circuit connection, which when programmed prevents further trimming of power supply controller and prevents adjustment of the shutdown circuit over temperature threshold.
摘要翻译：具有最终测试和调整电路的电源控制器。在一个实施例中，用于开关模式电源的电源控制器包括选择器电路，微调电路，关断电路和禁用电路。微调电路包括可由选择器电路通过切换外部端子（例如电源端子，控制端子或电源控制器的功能端子）的电压来选择的可编程电路连接。可以通过向外部端子施加编程电压来对编程电路中的可编程电路连接进行编程。如果温度超过过温阈值电压，关闭电路会关闭电源控制器。关断电路包括可用于测试关断电路的调节电路。调节电路可以调节和降低电源控制器的过温阈值。因此，可以对电源控制器进行测试，而无需实际加热部件。禁用电路包括可编程电路连接，其在编程时防止进一步修整电源控制器，并防止关断电路在温度阈值以上的调整。

89. 发明申请

US20080247202A1 METHOD AND APPARATUS FOR SENSING MULTIPLE VOLTAGE VALUES FROM A SINGLE TERMINAL OF A POWER CONVERTER CONTROLLER 有权
标题翻译：用于从电源转换器控制器的单个终端感测多个电压值的方法和装置
公开(公告)号：US20080247202A1
公开(公告)日：2008-10-09
申请号：US12058530
申请日：2008-03-28
申请人： Alex B. Djenguerian , Balu Balakrishnan
发明人： Alex B. Djenguerian , Balu Balakrishnan
IPC分类号： H02M1/00
CPC分类号： H02M3/33507 , H02M1/08 , H02M1/32 , H02M1/36 , H02M3/24 , H02M3/33523 , H02M2001/0009
摘要： An example controller for a power converter according to aspects of the present invention includes a switching control that switches a power switch to regulate an output of a power converter. The controller also includes a sensor coupled to receive a signal from a single terminal of the controller. The signal from the single terminal is representative of a line input voltage of the power converter during at least a portion of an on time of the power switch. The signal from the single terminal is also representative of an output voltage of the power converter during at least a portion of an off time of the power switch. The switching control is responsive to the sensor.
摘要翻译：根据本发明的方面的用于功率转换器的示例性控制器包括切换控制，其切换功率开关以调节功率转换器的输出。控制器还包括耦合以从控制器的单个端子接收信号的传感器。来自单个端子的信号在功率开关的接通时间的至少一部分期间代表功率转换器的线路输入电压。来自单个端子的信号也代表功率转换器在电源开关的断开时间的至少一部分期间的输出电压。切换控制响应于传感器。

90. 发明申请

US20080239609A1 METHOD AND APPARATUS PROVIDING FINAL TEST AND TRIMMING FOR A POWER SUPPLY CONTROLLER 有权
标题翻译：为电源控制器提供最终测试和调试的方法和设备
公开(公告)号：US20080239609A1
公开(公告)日：2008-10-02
申请号：US12137453
申请日：2008-06-11
申请人： Balu Balakrishnan , Alex B. Djenguerian , Erdem Bircan
发明人： Balu Balakrishnan , Alex B. Djenguerian , Erdem Bircan
IPC分类号： H02H5/04 , H03K19/173
CPC分类号： G11C29/021 , G06F1/26 , G11C29/02 , H02M1/32 , H02M1/36 , H02M3/00 , H02M3/157
摘要： A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown circuit and a disable circuit. The trim circuit includes a programmable circuit connection that can be selected by the selector circuit by toggling a voltage on an external terminal such as for example a power supply terminal, a control terminal or a function terminal of the power supply controller. The programmable circuit connection in the trim circuit can be programmed by applying a programming voltage to the external terminal. The shutdown circuit shuts down the power supply controller if the temperature rises above an over temperature threshold voltage. The shutdown circuit includes adjustment circuitry that can be used to test the shutdown circuit. The adjustment circuitry can adjust and reduce the over temperature threshold of the power supply controller. Thus, the power supply controller can be tested without having to actually heat the part. The disable circuit includes a programmable circuit connection, which when programmed prevents further trimming of power supply controller and prevents adjustment of the shutdown circuit over temperature threshold.
摘要翻译：具有最终测试和调整电路的电源控制器。在一个实施例中，用于开关模式电源的电源控制器包括选择器电路，微调电路，关断电路和禁用电路。微调电路包括可由选择器电路通过在例如电源控制器的电源端子，控制端子或功能端子的外部端子上切换电压来选择的可编程电路连接。可以通过向外部端子施加编程电压来对编程电路中的可编程电路连接进行编程。如果温度升高超过温度阈值电压，关闭电路将关闭电源控制器。关断电路包括可用于测试关断电路的调节电路。调节电路可以调节和降低电源控制器的过温阈值。因此，可以对电源控制器进行测试，而无需实际加热部件。禁用电路包括可编程电路连接，其在编程时防止进一步修整电源控制器，并防止关断电路在温度阈值以上的调整。

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