公开(公告)号：US08492998B2

公开(公告)日：2013-07-23

申请号：US13206239

申请日：2011-08-09

申请人： Jong Tae Hwang ,  Seong Joon Park ,  Dae Ho Kim ,  Moon Sang Jung

发明人： Jong Tae Hwang ,  Seong Joon Park ,  Dae Ho Kim ,  Moon Sang Jung

IPC分类号： G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  H05B39/02 ,  H05B37/00 ,  H05B39/00 ,  H05B41/00

CPC分类号： H05B33/0815

摘要： A driver circuit is configured to drive light-emitting elements. The driver circuit includes a light-emitting element, a power switching element, a control circuit, and a charge pump circuit. The power switching element includes a first terminal connected to the light-emitting element and turns on and off the light-emitting element. The control circuit is connected to a second terminal of the power switching element and controls a switching operation of the power switching element. The charge pump circuit is connected between the control circuit and a power source for the light-emitting element and supplies current to the control circuit for driving the control circuit.

摘要翻译： 驱动电路被配置为驱动发光元件。 驱动电路包括发光元件，功率开关元件，控制电路和电荷泵电路。 功率开关元件包括连接到发光元件的第一端子并且使发光元件接通和断开。 控制电路连接到电力开关元件的第二端子，并且控制电力开关元件的开关操作。 电荷泵电路连接在控制电路和发光元件的电源之间，并向控制电路提供电流以驱动控制电路。

公开(公告)号：US20120049753A1

公开(公告)日：2012-03-01

申请号：US13206195

申请日：2011-08-09

申请人： Jong Tae HWANG ,  Seong Joon Park ,  Dae Ho Kim ,  Moon Sang Jung

发明人： Jong Tae HWANG ,  Seong Joon Park ,  Dae Ho Kim ,  Moon Sang Jung

IPC分类号： H05B37/02

CPC分类号： H05B33/0818 ,  Y02B20/347

摘要： An average current controller configured for connection to display-components through a power switch. The average current controller includes first, second, and third comparators, an integrator, and a reference current generator. The first comparator compares a peak current level of reference current with a load current level of load current and outputs a first comparison result. The load current denotes current flowing through the display-components. The second comparator compares the peak current level of reference current with an average current level of the load current and outputs a second comparison result. The integrator integrates the second comparison result. The third comparator compares the integral value of the integrator with a predetermined value and outputs a third comparison result. The reference current generator sets the peak current level based on the first comparison result and the third comparison result and generates the reference current with the set peak current level.

摘要翻译： 一个平均电流控制器，配置为通过电源开关连接到显示器组件。 平均电流控制器包括第一，第二和第三比较器，积分器和参考电流发生器。 第一个比较器将参考电流的峰值电流电平与负载电流的负载电流水平进行比较，并输出第一个比较结果。 负载电流表示流过显示器组件的电流。 第二个比较器将参考电流的峰值电流电平与负载电流的平均电流电平进行比较，并输出第二个比较结果。 积分器集成了第二个比较结果。 第三比较器将积分器的积分值与预定值进行比较，并输出第三比较结果。 参考电流发生器基于第一比较结果和第三比较结果设置峰值电流电平，并以设定的峰值电流电平生成参考电流。

公开(公告)号：US08148956B2

公开(公告)日：2012-04-03

申请号：US12608727

申请日：2009-10-29

申请人： Jong-Tae Hwang ,  Jin-Sung Kim ,  Moon-Sang Jung ,  Dae-Ho Kim ,  Sung-Yun Park

发明人： Jong-Tae Hwang ,  Jin-Sung Kim ,  Moon-Sang Jung ,  Dae-Ho Kim ,  Sung-Yun Park

IPC分类号： G05F1/70

CPC分类号： G05F1/70 ,  H02M1/4225 ,  H02M2001/0025 ,  Y02B70/126

摘要： The present invention relates to a power factor correction circuit and a method of driving the power factor correction circuit. The power factor correction circuit according to the present invention includes a power transfer element configured to receive an input voltage, an input current corresponding to the input voltage flowing through the power transfer element, and a switch connected to the power transfer element and configured to control an output voltage generated by the current flowing through the power transfer element. The power factor correction circuit is configured to detect a zero voltage edge timing of the input voltage by detecting the input voltage, generate a reference clock signal having a frequency that varies according to the detected edge timing, generate a reference signal using the reference clock signal, generate an error amplification signal based on a difference between the output voltage and a predetermined error reference signal, generate the amplification reference signal by multiplying the reference signal by the error amplification signal, and control a switching operation of the switch using the amplification reference signal and a detection signal corresponding to a current flowing through the switch.

摘要翻译： 本发明涉及一种功率因数校正电路和驱动功率因数校正电路的方法。 根据本发明的功率因数校正电路包括功率传输元件，其被配置为接收输入电压，对应于流过功率传递元件的输入电压的输入电流，以及连接到功率传输元件的开关，并且被配置为控制 由流过功率传递元件的电流产生的输出电压。 功率因数校正电路被配置为通过检测输入电压来检测输入电压的零电压边沿定时，产生具有根据检测到的边沿定时而变化的频率的参考时钟信号，使用参考时钟信号产生参考信号 基于输出电压和预定误差参考信号之间的差产生误差放大信号，通过将参考信号乘以误差放大信号产生放大参考信号，并使用放大参考信号来控制开关的开关操作 以及与流过开关的电流对应的检测信号。

公开(公告)号：US20100019809A1

公开(公告)日：2010-01-28

申请号：US12509013

申请日：2009-07-24

申请人： Jong-Tae Hwang ,  Moon-Sang Jung ,  Jin-Sung Kim ,  Dae-Ho Kim ,  Min-Ho Jung

发明人： Jong-Tae Hwang ,  Moon-Sang Jung ,  Jin-Sung Kim ,  Dae-Ho Kim ,  Min-Ho Jung

IPC分类号： H03B28/00

CPC分类号： H02M1/4208 ,  Y02B70/126

摘要： Disclosed are a switch controller, a switch control method, and a converter based thereon. The switch controller generates an input sensing voltage corresponding to the input voltage of the converter, and compares the input sensing voltage with a predetermined first reference value. The switch controller generates a zero cross detection signal with a first level or a second level depending upon the comparison result, and generates a reference clock signal varying in frequency in accordance with one cycle of the zero cross detection signal. The switch controller generates digital signals by using the reference clock signal and the zero cross detection signal. The digital signals synchronize with the zero cross detection signal, and increase in accordance with the reference clock signal during a half of one cycle of the zero cross detection signal, while decreasing in accordance with the reference clock signal during the other half cycle of the zero cross detection signal. The switch controller generates a reference signal with a voltage level corresponding to the digital signal.

摘要翻译： 公开了一种开关控制器，开关控制方法和基于其的转换器。 开关控制器产生与转换器的输入电压相对应的输入感测电压，并将输入感测电压与预定的第一参考值进行比较。 开关控制器根据比较结果产生具有第一电平或第二电平的零交叉检测信号，并且根据过零检测信号的一个周期产生频率变化的参考时钟信号。 开关控制器通过使用参考时钟信号和过零检测信号来产生数字信号。 数字信号与零交叉检测信号同步，并且在零交叉检测信号的一个周期的一半期间根据参考时钟信号增加，而在零的另一半周期期间根据参考时钟信号减小 交叉检测信号。 开关控制器产生具有与数字信号对应的电压电平的参考信号。

公开(公告)号：US08125197B2

公开(公告)日：2012-02-28

申请号：US12509013

申请日：2009-07-24

申请人： Jong-Tae Hwang ,  Moon-Sang Jung ,  Jin-Sung Kim ,  Dae-Ho Kim ,  Min-Ho Jung

发明人： Jong-Tae Hwang ,  Moon-Sang Jung ,  Jin-Sung Kim ,  Dae-Ho Kim ,  Min-Ho Jung

IPC分类号： G05F1/70

CPC分类号： H02M1/4208 ,  Y02B70/126

摘要： Disclosed are a switch controller, a switch control method, and a converter based thereon. The switch controller generates an input sensing voltage corresponding to the input voltage of the converter, and compares the input sensing voltage with a predetermined first reference value. The switch controller generates a zero cross detection signal with a first level or a second level depending upon the comparison result, and generates a reference clock signal varying in frequency in accordance with one cycle of the zero cross detection signal. The switch controller generates digital signals by using the reference clock signal and the zero cross detection signal. The digital signals synchronize with the zero cross detection signal, and increase in accordance with the reference clock signal during a half of one cycle of the zero cross detection signal, while decreasing in accordance with the reference clock signal during the other half cycle of the zero cross detection signal. The switch controller generates a reference signal with a voltage level corresponding to the digital signal.

摘要翻译： 公开了一种开关控制器，开关控制方法和基于其的转换器。 开关控制器产生与转换器的输入电压相对应的输入感测电压，并将输入感测电压与预定的第一参考值进行比较。 开关控制器根据比较结果产生具有第一电平或第二电平的零交叉检测信号，并且根据过零检测信号的一个周期产生频率变化的参考时钟信号。 开关控制器通过使用参考时钟信号和过零检测信号来产生数字信号。 数字信号与零交叉检测信号同步，并且在零交叉检测信号的一个周期的一半期间根据参考时钟信号增加，而在零的另一半周期期间根据参考时钟信号减小 交叉检测信号。 开关控制器产生具有与数字信号对应的电压电平的参考信号。

公开(公告)号：US07492141B2

公开(公告)日：2009-02-17

申请号：US11784162

申请日：2007-04-04

申请人： Jong-Tae Hwang ,  Moon-Sang Jung ,  Dong-Hwan Kim ,  Jin-Sung Kim

发明人： Jong-Tae Hwang ,  Moon-Sang Jung ,  Dong-Hwan Kim ,  Jin-Sung Kim

IPC分类号： G05F1/40 ,  G05F1/56

CPC分类号： H02M3/3376 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

摘要： A resonant inverter includes a first driver and a second driver for driving a first and second switching devices, respectively, a dead time generator for generating a first drive signal and a second drive signal respectively, a current-controlled oscillator for supplying, to the dead time generator, an output clock having a frequency determined based on a first current input to the current-controlled oscillator, and a current mirror for supplying the first current to the current-controlled oscillator in an amount proportional to a second current flowing through an external resistor. The current mirror includes a track/hold circuit, to supply the second current in an amount equal to an amount of the second current supplied before a variation in the amount of the second current, during a transition of an output signal between the first and second switching devices.

摘要翻译： 谐振逆变器包括分别用于驱动第一和第二开关装置的第一驱动器和第二驱动器，分别用于产生第一驱动信号和第二驱动信号的死区时间发生器，用于向死人提供电流控制振荡器 时间发生器，具有基于对电流控制振荡器的第一电流输入而确定的频率的输出时钟以及用于以与流过外部电流的第二电流成比例的量向电流控制振荡器提供第一电流的电流镜 电阻。 电流镜包括跟踪/保持电路，以在第一和第二电平之间的输出信号的转变期间提供等于第二电流量的变化之前提供的第二电流的量的量的第二电流 开关器件。

公开(公告)号：US20070296462A1

公开(公告)日：2007-12-27

申请号：US11800198

申请日：2007-05-04

申请人： Jong-Tae Hwang ,  Moon-Sang Jung ,  Jin-Sung Kim ,  Dong-Hwan Kim

发明人： Jong-Tae Hwang ,  Moon-Sang Jung ,  Jin-Sung Kim ,  Dong-Hwan Kim

IPC分类号： H03K19/0175

CPC分类号： H03K19/018521

摘要： A logic circuit for high-side gate driver includes a p-MOSFET array connected to a first voltage source, an n-MOSFET array connected to a second voltage source, and a resistor arranged between the p-MOSFET array and the n-MOSFET array, wherein a first node between the resistor and at least one of the p-MOSFETs in the p-MOSFET array is connected to a first output terminal, and a second node between the resistor and at least one of the n-MOSFETs in the n-MOSFET array is connected to a second output terminal. An additional logic circuit can include a second p-MOSFET array, a second n-MOSFET array, and a second resistor between the second p-MOSFET array and the second n-MOSFET array, where an output signal from an output terminal between the first resistor and the first n-MOSFET array is fed back to the second p-MOSFET array and the second n-MOSFET array, and an output signal from an output terminal between the second resistor and the second n-MOSFET array is fed back to the first p-MOSFET array and the first n-MOSFET array.

摘要翻译： 用于高侧栅极驱动器的逻辑电路包括连接到第一电压源的p-MOSFET阵列，连接到第二电压源的n-MOSFET阵列和布置在p-MOSFET阵列和n-MOSFET阵列之间的电阻器 ，其中所述电阻器和所述p-MOSFET阵列中的至少一个p-MOSFET之间的第一节点连接到第一输出端子，并且所述电阻器和所述n个中的至少一个n-MOSFET的第二节点 -MOSFET阵列连接到第二输出端。 附加的逻辑电路可以包括第二p-MOSFET阵列，第二n-MOSFET阵列和在第二p-MOSFET阵列和第二n-MOSFET阵列之间的第二电阻，其中来自第一 电阻器和第一n-MOSFET阵列被反馈到第二p-MOSFET阵列和第二n-MOSFET阵列，并且来自第二电阻器和第二n-MOSFET阵列之间的输出端的输出信号被反馈到 第一个p-MOSFET阵列和第一个n-MOSFET阵列。

公开(公告)号：US20100109615A1

公开(公告)日：2010-05-06

申请号：US12608727

申请日：2009-10-29

申请人： Jong-Tae HWANG ,  Jin-Sung KIM ,  Moon-Sang JUNG ,  Dae-Ho KIM ,  Sung-Yun PARK

发明人： Jong-Tae HWANG ,  Jin-Sung KIM ,  Moon-Sang JUNG ,  Dae-Ho KIM ,  Sung-Yun PARK

IPC分类号： G05F1/70

CPC分类号： G05F1/70 ,  H02M1/4225 ,  H02M2001/0025 ,  Y02B70/126

摘要： The present invention relates to a power factor correction circuit and a method of driving the power factor correction circuit. The power factor correction circuit according to the present invention includes a power transfer element configured to receive an input voltage, an input current corresponding to the input voltage flowing through the power transfer element, and a switch connected to the power transfer element and configured to control an output voltage generated by the current flowing through the power transfer element. The power factor correction circuit is configured to detect a zero voltage edge timing of the input voltage by detecting the input voltage, generate a reference clock signal having a frequency that varies according to the detected edge timing, generate a reference signal using the reference clock signal, generate an error amplification signal based on a difference between the output voltage and a predetermined error reference signal, generate the amplification reference signal by multiplying the reference signal by the error amplification signal, and control a switching operation of the switch using the amplification reference signal and a detection signal corresponding to a current flowing through the switch.

摘要翻译： 本发明涉及一种功率因数校正电路和驱动功率因数校正电路的方法。 根据本发明的功率因数校正电路包括功率传输元件，其被配置为接收输入电压，对应于流过功率传递元件的输入电压的输入电流，以及连接到功率传输元件的开关，并且被配置为控制 由流过功率传递元件的电流产生的输出电压。 功率因数校正电路被配置为通过检测输入电压来检测输入电压的零电压边沿定时，产生具有根据检测到的边沿定时而变化的频率的参考时钟信号，使用参考时钟信号产生参考信号 基于输出电压和预定误差参考信号之间的差产生误差放大信号，通过将参考信号乘以误差放大信号产生放大参考信号，并使用放大参考信号来控制开关的开关操作 以及与流过开关的电流对应的检测信号。

公开(公告)号：US20070229051A1

公开(公告)日：2007-10-04

申请号：US11784162

申请日：2007-04-04

申请人： Jong-Tae Hwang ,  Moon-Sang Jung ,  Dong-Hwan Kim ,  Jin-Sung Kim

发明人： Jong-Tae Hwang ,  Moon-Sang Jung ,  Dong-Hwan Kim ,  Jin-Sung Kim

IPC分类号： G05F1/00

CPC分类号： H02M3/3376 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

摘要： A resonant inverter includes a first driver and a second driver for driving a first and second switching devices, respectively, a dead time generator for generating a first drive signal and a second drive signal respectively, a current-controlled oscillator for supplying, to the dead time generator, an output clock having a frequency determined based on a first current input to the current-controlled oscillator, and a current mirror for supplying the first current to the current-controlled oscillator in an amount proportional to a second current flowing through an external resistor. The current mirror includes a track/hold circuit, to supply the second current in an amount equal to an amount of the second current supplied before a variation in the amount of the second current, during a transition of an output signal between the first and second switching devices.

摘要翻译： 谐振逆变器包括分别用于驱动第一和第二开关装置的第一驱动器和第二驱动器，分别用于产生第一驱动信号和第二驱动信号的死区时间发生器，用于向死人提供电流控制振荡器 时间发生器，具有基于对电流控制振荡器的第一电流输入而确定的频率的输出时钟以及用于以与流过外部电流的第二电流成比例的量向电流控制振荡器提供第一电流的电流镜 电阻。 电流镜包括跟踪/保持电路，以在第一和第二电平之间的输出信号的转变期间提供等于第二电流量的变化之前提供的第二电流的量的量的第二电流 开关器件。

公开(公告)号：US20070145907A1

公开(公告)日：2007-06-28

申请号：US11607358

申请日：2006-12-01

申请人： Jong-Tae Hwang ,  Dae-Ho Kim ,  Moon-Sang Jung ,  Dong-Hwan Kim

发明人： Jong-Tae Hwang ,  Dae-Ho Kim ,  Moon-Sang Jung ,  Dong-Hwan Kim

IPC分类号： H05B41/36

CPC分类号： H05B41/2985 ,  H05B41/2981 ,  H05B41/2986

摘要： A ballast integrated circuit (IC) for driving a first switching element and a second switching element includes: a variable gain amplifier (VGA) connected to a first input terminal connected to a resistor, for generating an output current signal according to a resistance value of the resistor and a gain control signal; a preheating/ignition controller connected to a second input terminal connected to a capacitor, for generating an output current signal and an output voltage signal acting as the gain control signal according to a voltage of the second input terminal; an active zero-voltage controller for generating a hard-switching current signal and an active zero-voltage switching current signal, such that it adjusts the voltage of the second input terminal according to switching states of the first switching element and the second switching element; an oscillator for generating an oscillation signal upon receiving the output current signal from the variable gain amplifier (VGA); and a dead-time controller for receiving the voltage signal of the second input terminal and an output signal of the oscillator, adjusting a dead time using the received signals, and at the same time generating driving signals of the first and second switching elements.

摘要翻译： 用于驱动第一开关元件和第二开关元件的镇流器集成电路（IC）包括：连接到连接到电阻器的第一输入端子的可变增益放大器（VGA），用于根据电阻值的电阻值产生输出电流信号 电阻和增益控制信号; 连接到连接到电容器的第二输入端子的预热/点火控制器，用于根据第二输入端子的电压产生作为增益控制信号的输出电流信号和输出电压信号; 用于产生硬切换电流信号和有效零电压开关电流信号的有源零电压控制器，使得其根据第一开关元件和第二开关元件的开关状态来调节第二输入端子的电压; 用于在从可变增益放大器（VGA）接收输出电流信号时产生振荡信号的振荡器; 以及用于接收第二输入端子的电压信号和振荡器的输出信号的死区时间控制器，使用接收信号调整死区时间，同时产生第一和第二开关元件的驱动信号。