公开(公告)号：US20090295349A1

公开(公告)日：2009-12-03

申请号：US12156421

申请日：2008-05-30

申请人： Zhibo Tao ,  David Kunst ,  Steven Huyah

发明人： Zhibo Tao ,  David Kunst ,  Steven Huyah

IPC分类号： G05F1/10

CPC分类号： H02M3/33569 ,  H02M3/33507 ,  H02M2001/0006

摘要： A flyback converter includes a controller integrated circuit (IC) housed in an IC package with only three terminals. The controller IC is grounded through a ground terminal. A feedback signal is received onto a power terminal. The feedback signal powers the controller IC and is derived from a voltage across an auxiliary inductor of the flyback converter. A switch terminal is coupled to an inductor switch that is turned on by a switch control signal having a frequency and a pulse width. The inductor switch controls the current that flows through a primary inductor of the flyback converter. A switch signal is received onto the switch terminal and is used to generate the inductor switch control signal. The controller IC adjusts the frequency in a constant current mode such that output current remains constant and adjusts the pulse width in a constant voltage mode such that output voltage remains constant.

摘要翻译： 反激式转换器包括容纳在仅具有三个端子的IC封装中的控制器集成电路（IC）。 控制器IC通过接地端子接地。 反馈信号被接收到电源端子上。 反馈信号为控制器IC供电，并由反激式转换器的辅助电感器上的电压导出。 开关端子耦合到通过具有频率和脉冲宽度的开关控制信号导通的电感器开关。 电感开关控制流过反激式转换器初级电感器的电流。 开关信号被接收到开关端子上，用于产生电感开关控制信号。 控制器IC以恒定电流模式调节频率，使得输出电流保持恒定并且以恒定电压模式调节脉冲宽度，使得输出电压保持恒定。

公开(公告)号：US20080259650A1

公开(公告)日：2008-10-23

申请号：US11881666

申请日：2007-07-26

申请人： Steven Huynh ,  Matthew Grant ,  David Kunst

发明人： Steven Huynh ,  Matthew Grant ,  David Kunst

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M3/33523 ,  H02M2001/0009

摘要： A comparing circuit and a control loop are used to maintain the peak level of current flowing through an inductor of a flyback converter. An inductor switch control signal controls a switch through which the inductor current flows. The inductor current increases at a ramp-up rate during a ramp time and stops increasing at the end of the ramp time. The comparing circuit generates a timing signal that indicates a target time at which the inductor current would reach a predetermined current limit if the inductor current continued to increase at the ramp-up rate. The control loop then receives the timing signal and compares the target time to the end of the ramp time. The pulse width of the inductor switch control signal is increased when the target time occurs after the end of the ramp time. Adjusting the frequency and pulse width controls the peak of the inductor current.

摘要翻译： 使用比较电路和控制回路来保持流过反激式转换器的电感器的电流的峰值电平。 电感开关控制信号控制电感电流通过的开关。 电感电流在斜坡时间内以斜升速率增加，并在斜坡时间结束时停止增加。 比较电路产生一个定时信号，其指示如果电感器电流以升高速率继续增加，则电感器电流将达到预定电流极限的目标时间。 然后，控制环路接收定时信号，并将目标时间与斜坡时间结束进行比较。 当斜坡时间结束后，当目标时间发生时，电感开关控制信号的脉冲宽度就会增加。 调整频率和脉冲宽度可以控制电感电流的峰值。

公开(公告)号：US08089783B2

公开(公告)日：2012-01-03

申请号：US12156421

申请日：2008-05-30

申请人： Zhibo Tao ,  David Kunst ,  Steven Huyah

发明人： Zhibo Tao ,  David Kunst ,  Steven Huyah

IPC分类号： H02M3/335

CPC分类号： H02M3/33569 ,  H02M3/33507 ,  H02M2001/0006

摘要： A flyback converter includes a controller integrated circuit (IC) housed in an IC package with only three terminals. The controller IC is grounded through a ground terminal. A feedback signal is received onto a power terminal. The feedback signal powers the controller IC and is derived from a voltage across an auxiliary inductor of the flyback converter. A switch terminal is coupled to an inductor switch that is turned on by a switch control signal having a frequency and a pulse width. The inductor switch controls the current that flows through a primary inductor of the flyback converter. A switch signal is received onto the switch terminal and is used to generate the inductor switch control signal. The controller IC adjusts the frequency in a constant current mode such that output current remains constant and adjusts the pulse width in a constant voltage mode such that output voltage remains constant.

摘要翻译： 反激式转换器包括容纳在仅具有三个端子的IC封装中的控制器集成电路（IC）。 控制器IC通过接地端子接地。 反馈信号被接收到电源端子上。 反馈信号为控制器IC供电，并由反激式转换器的辅助电感器上的电压导出。 开关端子耦合到通过具有频率和脉冲宽度的开关控制信号导通的电感器开关。 电感开关控制流过反激式转换器初级电感器的电流。 开关信号被接收到开关端子上，用于产生电感开关控制信号。 控制器IC以恒定电流模式调节频率，使得输出电流保持恒定并且以恒定电压模式调节脉冲宽度，使得输出电压保持恒定。

公开(公告)号：US20110074352A1

公开(公告)日：2011-03-31

申请号：US12927940

申请日：2010-11-29

申请人： Steven Huynh ,  Matthew Grant ,  David Kunst ,  Zhibo Tao

发明人： Steven Huynh ,  Matthew Grant ,  David Kunst ,  Zhibo Tao

IPC分类号： H02J7/02

CPC分类号： H02M3/33523

摘要： A cord correction circuit in a primary-side-controlled flyback converter compensates for the loss of output voltage caused by the resistance of the charger cord. In one embodiment, a correction voltage is subtracted from a feedback voltage received from a primary-side auxiliary inductor. A pre-amplifier then compares a reference voltage to the corrected feedback voltage. In another embodiment, the correction voltage is summed with the reference voltage, and the pre-amplifier compares the feedback voltage to the corrected reference voltage. The difference between the voltages on the input leads of the pre-amplifier is used to increase the output voltage to compensate for the voltage lost through the charger cord. The flyback converter also has a comparing circuit and a control loop that maintain the peak level of current flowing through the primary inductor of the converter. Adjusting the frequency and pulse width of an inductor switch signal controls the converter output current.

公开(公告)号：US07911814B2

公开(公告)日：2011-03-22

申请号：US12156379

申请日：2008-05-30

申请人： Zhibo Tao ,  David Kunst ,  Steven Huynh

发明人： Zhibo Tao ,  David Kunst ,  Steven Huynh

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H01L2924/0002 ,  H02M3/33569 ,  H02M2001/0006 ,  H01L2924/00

摘要： A flyback converter includes a controller integrated circuit (IC) housed in an IC package with only three terminals. An inexpensive TO-92 transistor package can be used. A switch terminal is coupled to an inductor switch that is turned on by a switch control signal having a frequency and a pulse width. The inductor switch controls the current that flows through a primary inductor of the flyback converter. The controller IC adjusts the frequency in a constant current mode such that output current remains constant and adjusts the pulse width in a constant voltage mode such that output voltage remains constant. A power terminal receives a feedback signal that is derived from a voltage across an auxiliary inductor of the flyback converter. The feedback signal provides power to the controller IC and is also used to generate the switch control signal. The controller IC is grounded through a ground terminal.

摘要翻译： 反激式转换器包括容纳在仅具有三个端子的IC封装中的控制器集成电路（IC）。 可以使用廉价的TO-92晶体管封装。 开关端子耦合到通过具有频率和脉冲宽度的开关控制信号导通的电感器开关。 电感开关控制流过反激式转换器初级电感器的电流。 控制器IC以恒定电流模式调节频率，使得输出电流保持恒定并且以恒定电压模式调节脉冲宽度，使得输出电压保持恒定。 电源端子接收从反激式转换器的辅助电感器两端的电压导出的反馈信号。 反馈信号为控制器IC提供电源，并且还用于产生开关控制信号。 控制器IC通过接地端子接地。

公开(公告)号：US07667987B2

公开(公告)日：2010-02-23

申请号：US11881666

申请日：2007-07-26

申请人： Steven Huynh ,  Matthew Grant ,  David Kunst

发明人： Steven Huynh ,  Matthew Grant ,  David Kunst

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M3/33523 ,  H02M2001/0009

摘要： A comparing circuit and a control loop are used to maintain the peak level of current flowing through an inductor of a flyback converter. An inductor switch control signal controls a switch through which the inductor current flows. The inductor current increases at a ramp-up rate during a ramp time and stops increasing at the end of the ramp time. The comparing circuit generates a timing signal that indicates a target time at which the inductor current would reach a predetermined current limit if the inductor current continued to increase at the ramp-up rate. The control loop then receives the timing signal and compares the target time to the end of the ramp time. The pulse width of the inductor switch control signal is increased when the target time occurs after the end of the ramp time. Adjusting the frequency and pulse width controls the peak of the inductor current.

摘要翻译： 使用比较电路和控制回路来保持流过反激式转换器的电感器的电流的峰值电平。 电感开关控制信号控制电感电流通过的开关。 电感电流在斜坡时间内以斜升速率增加，并在斜坡时间结束时停止增加。 比较电路产生一个定时信号，其指示如果电感器电流以升高速率继续增加，则电感器电流将达到预定电流极限的目标时间。 然后，控制环路接收定时信号，并将目标时间与斜坡时间结束进行比较。 当斜坡时间结束后，当目标时间发生时，电感开关控制信号的脉冲宽度就会增加。 调整频率和脉冲宽度可以控制电感电流的峰值。

公开(公告)号：US20090319959A1

公开(公告)日：2009-12-24

申请号：US12583545

申请日：2009-08-21

申请人： Steven Huynh ,  David Kunst

发明人： Steven Huynh ,  David Kunst

IPC分类号： G06F17/50

CPC分类号： G06F17/5072 ,  H01L2224/49171 ,  H01L2924/0002 ,  H01L2924/00

摘要： An integrated circuit (IC) and fabrication method thereof is provided that include the steps of specifying a plurality of required tile modules suitable for a particular end application, each of the modular tiles being configured to perform a predetermined function and constructed to have approximately the same length and width dimensions. The modular tiles are used to form the IC in a standard IC fabrication process. In many implementations, physical layout of the IC does not include the step of routing. Capabilities also include configuring the modular tiles to have programmable performance parameters and configuring the modular tiles to cooperate usefully with one another based on a programmable parameter.

公开(公告)号：US20090295348A1

公开(公告)日：2009-12-03

申请号：US12156379

申请日：2008-05-30

申请人： Zhibo Tao ,  David Kunst ,  Steven Huynh

发明人： Zhibo Tao ,  David Kunst ,  Steven Huynh

IPC分类号： G05F1/10

CPC分类号： H02M3/33507 ,  H01L2924/0002 ,  H02M3/33569 ,  H02M2001/0006 ,  H01L2924/00

摘要： A flyback converter includes a controller integrated circuit (IC) housed in an IC package with only three terminals. An inexpensive TO-92 transistor package can be used. A switch terminal is coupled to an inductor switch that is turned on by a switch control signal having a frequency and a pulse width. The inductor switch controls the current that flows through a primary inductor of the flyback converter. The controller IC adjusts the frequency in a constant current mode such that output current remains constant and adjusts the pulse width in a constant voltage mode such that output voltage remains constant. A power terminal receives a feedback signal that is derived from a voltage across an auxiliary inductor of the flyback converter. The feedback signal provides power to the controller IC and is also used to generate the switch control signal. The controller IC is grounded through a ground terminal.

摘要翻译： 反激式转换器包括容纳在仅具有三个端子的IC封装中的控制器集成电路（IC）。 可以使用廉价的TO-92晶体管封装。 开关端子耦合到通过具有频率和脉冲宽度的开关控制信号导通的电感器开关。 电感开关控制流过反激式转换器初级电感器的电流。 控制器IC以恒定电流模式调节频率，使得输出电流保持恒定并且以恒定电压模式调节脉冲宽度，使得输出电压保持恒定。 电源端子接收从反激式转换器的辅助电感器两端的电压导出的反馈信号。 反馈信号为控制器IC提供电源，并且还用于产生开关控制信号。 控制器IC通过接地端子接地。

公开(公告)号：US20090230550A1

公开(公告)日：2009-09-17

申请号：US12454513

申请日：2009-05-19

申请人： Steven Huynh ,  David Kunst

发明人： Steven Huynh ,  David Kunst

IPC分类号： H01L23/498

CPC分类号： G06F17/5072 ,  H01L2224/49171 ,  H01L2924/0002 ,  H01L2924/00

摘要： An integrated circuit (IC) and fabrication method thereof is provided that include the steps of specifying a plurality of required tile modules suitable for a particular end application, each of the modular tiles being configured to perform a predetermined function and constructed to have approximately the same length and width dimensions. The modular tiles are used to form the IC in a standard IC fabrication process. In many implementations, physical layout of the IC does not include the step of routing. Capabilities also include configuring the modular tiles to have programmable performance parameters and configuring the modular tiles to cooperate usefully with one another based on a programmable parameter.

公开(公告)号：US07581198B2

公开(公告)日：2009-08-25

申请号：US11544876

申请日：2006-10-07

申请人： Steven Huynh ,  David Kunst

发明人： Steven Huynh ,  David Kunst

IPC分类号： G06F17/50

CPC分类号： G06F17/5072 ,  H01L2224/49171 ,  H01L2924/0002 ,  H01L2924/00

摘要： An integrated circuit (IC) and fabrication method thereof is provided that include the steps of specifying a plurality of required tile modules suitable for a particular end-application, each of the modular tiles being configured to perform a predetermined function and constructed to have approximately the same length and width dimensions. The modular tiles are used to form the IC in a standard IC fabrication process. In many implementations, the physical layout of the IC does not include the step of routing. Capabilities also include configuring the modular tiles to have programmable performance parameters and configuring the modular tiles to cooperate usefully with one another based on a programmable parameter.

摘要翻译： 提供了一种集成电路（IC）及其制造方法，其包括以下步骤：指定适合于特定终端应用的多个所需的瓦片模块，每个模块化瓦片被配置为执行预定功能并被构造为具有大约 长度和宽度相同的尺寸。 模块化瓦片用于在标准IC制造工艺中形成IC。 在许多实现中，IC的物理布局不包括路由的步骤。 能力还包括配置模块化瓦片以具有可编程的性能参数，并且配置模块化瓦片，以便基于可编程参数彼此有用地进行协调。