公开(公告)号：US20080175029A1

公开(公告)日：2008-07-24

申请号：US11888480

申请日：2007-08-01

申请人： Sang-Hwa Jung ,  Kyung-Goo Lee

发明人： Sang-Hwa Jung ,  Kyung-Goo Lee

IPC分类号： H02M7/757

CPC分类号： H02M3/156

摘要： The present invention relates to a converter and a driving method thereof. The converter uses an input voltage to generate an output voltage by a main switch's switching and applies power to a load, senses the current flowing to the main switch to generate a sense voltage, uses a first voltage corresponding to the current applied to the load and a sawtooth waveform signal having a first frequency to control a group frequency of the burst mode, controls the main switch's turn-on timing, and uses the first voltage and the sense voltage to determine whether to turn off the main switch, thereby controlling the main switch's switching. The converter determines the start and end of the period for switching according to the result of comparing the first voltage and the sawtooth waveform signal. Therefore, a converter for having a constant group frequency, preventing audible noise, and preventing output voltage ripple, and a driving method thereof, are provided.

摘要翻译： 本发明涉及一种转换器及其驱动方法。 转换器使用输入电压通过主开关的开关产生输出电压并向负载施加电力，感测流向主开关的电流以产生感测电压，使用与施加到负载的电流相对应的第一电压，以及 具有控制突发模式的组频率的第一频率的锯齿波形信号，控制主开关的导通定时，并且使用第一电压和感测电压来确定是否关闭主开关，从而控制主开关 开关切换。 根据比较第一电压和锯齿波形信号的结果，转换器确定用于切换的周期的开始和结束。 因此，提供了具有恒定组频率，防止可听见的噪声并且防止输出电压纹波的转换器及其驱动方法。

公开(公告)号：US07777464B2

公开(公告)日：2010-08-17

申请号：US11805872

申请日：2007-05-24

申请人： Sang-Hwa Jung ,  Dong-Hee Kim ,  Kyung-Goo Lee ,  Dong-Hoon Lee

发明人： Sang-Hwa Jung ,  Dong-Hee Kim ,  Kyung-Goo Lee ,  Dong-Hoon Lee

IPC分类号： G05F1/565

CPC分类号： H02M3/156

摘要： A mixed type frequency compensating circuit is disclosed. The mixed type frequency compensating circuit includes an integral component sub-circuit of a voltage-amplifier-type frequency compensating circuit and a proportional component sub-circuit of a transconductance-amplifier-type frequency compensating circuit. The integral component sub-circuit amplifies an input voltage signal in a voltage mode. The proportional component sub-circuit amplifies the input voltage signal in a current mode. Accordingly, the mixed type frequency compensating circuit may occupy a small area in a semiconductor integrated circuit.

摘要翻译： 公开了一种混合型频率补偿电路。 混合型频率补偿电路包括电压放大器型频率补偿电路的整体分量子电路和跨导放大器型频率补偿电路的比例分量子电路。 积分分量子电路以电压模式放大输入电压信号。 比例分量子电路在当前模式下放大输入电压信号。 因此，混合型频率补偿电路可能在半导体集成电路中占据较小的面积。

公开(公告)号：US07750615B2

公开(公告)日：2010-07-06

申请号：US11888480

申请日：2007-08-01

申请人： Sang-Hwa Jung ,  Kyung-Goo Lee

发明人： Sang-Hwa Jung ,  Kyung-Goo Lee

IPC分类号： G05F1/40

CPC分类号： H02M3/156

摘要： The present invention relates to a converter and a driving method thereof. The converter uses an input voltage to generate an output voltage by a main switch's switching and applies power to a load, senses the current flowing to the main switch to generate a sense voltage, uses a first voltage corresponding to the current applied to the load and a sawtooth waveform signal having a first frequency to control a group frequency of the burst mode, controls the main switch's turn-on timing, and uses the first voltage and the sense voltage to determine whether to turn off the main switch, thereby controlling the main switch's switching. The converter determines the start and end of the period for switching according to the result of comparing the first voltage and the sawtooth waveform signal. Therefore, a converter for having a constant group frequency, preventing audible noise, and preventing output voltage ripple, and a driving method thereof, are provided.

摘要翻译： 本发明涉及一种转换器及其驱动方法。 转换器使用输入电压通过主开关的开关产生输出电压并向负载施加电力，感测流向主开关的电流以产生感测电压，使用与施加到负载的电流相对应的第一电压，以及 具有控制突发模式的组频率的第一频率的锯齿波形信号，控制主开关的导通定时，并且使用第一电压和感测电压来确定是否关闭主开关，从而控制主开关 开关切换。 根据比较第一电压和锯齿波形信号的结果，转换器确定用于切换的周期的开始和结束。 因此，提供了具有恒定组频率，防止可听见的噪声并且防止输出电压纹波的转换器及其驱动方法。

公开(公告)号：US20070273414A1

公开(公告)日：2007-11-29

申请号：US11805872

申请日：2007-05-24

申请人： Sang-Hwa Jung ,  Dong-Hee Kim ,  Kyung-Goo Lee ,  Dong-Hoon Lee

发明人： Sang-Hwa Jung ,  Dong-Hee Kim ,  Kyung-Goo Lee ,  Dong-Hoon Lee

IPC分类号： H03B19/00

CPC分类号： H02M3/156

摘要： A mixed type frequency compensating circuit is disclosed. The mixed type frequency compensating circuit includes an integral component sub-circuit of a voltage-amplifier-type frequency compensating circuit and a proportional component sub-circuit of a transconductance-amplifier-type frequency compensating circuit. The integral component sub-circuit amplifies an input voltage signal in a voltage mode. The proportional component sub-circuit amplifies the input voltage signal in a current mode. Accordingly, the mixed type frequency compensating circuit may occupy a small area in a semiconductor integrated circuit.

摘要翻译： 公开了一种混合型频率补偿电路。 混合型频率补偿电路包括电压放大器型频率补偿电路的整体分量子电路和跨导放大器型频率补偿电路的比例分量子电路。 积分分量子电路以电压模式放大输入电压信号。 比例分量子电路在当前模式下放大输入电压信号。 因此，混合型频率补偿电路可能在半导体集成电路中占据较小的面积。

公开(公告)号：US07893730B2

公开(公告)日：2011-02-22

申请号：US12181443

申请日：2008-07-29

申请人： Sang-Hwa Jung ,  Han-Seung Lee

发明人： Sang-Hwa Jung ,  Han-Seung Lee

IPC分类号： H03B1/00

CPC分类号： H03K19/018521

摘要： The present invention related to a driving circuit including a level shifter. The driving circuit according to exemplary embodiment of the present invention includes a first level shifter, a second level shifter, and a gate driver. The first level shifter includes a path along which a pulse-on current flows in response to an on-control signal and a path along which a pulse-off control flows in response to an off-control signal. The second level shifter includes a path along which an on-current flows in response to the on-control signal and a path along which an off-control flows in response to the off-control signal. The gate driver turns on the switch in response to the pulse-on current, maintains the turned-on switch in the turn-on state in response to the on-control current, turns off the switch in response to the pulse-off current, and maintains the turned-off switch in the turn-off state in response to the off-control current.

摘要翻译： 本发明涉及一种包括电平转换器的驱动电路。 根据本发明的示例性实施例的驱动电路包括第一电平移位器，第二电平移位器和栅极驱动器。 第一电平移位器包括脉冲导通电流响应于接通控制信号和响应于关断控制信号脉冲断开控制流过的路径流过的路径。 第二电平移位器包括响应于导通控制信号导通电流的路径和响应于关断控制信号而断开控制流动的路径。 栅极驱动器响应于脉冲导通电流接通开关，响应于导通电流将导通开关保持在导通状态，响应于脉冲关断电流关断开关， 并且响应于截止控制电流将关断开关保持在关断状态。

公开(公告)号：US20070285173A1

公开(公告)日：2007-12-13

申请号：US11805476

申请日：2007-05-23

申请人： Sang-Hwa Jung ,  Dong-Hee Kim ,  Jong-Tae Hwang

发明人： Sang-Hwa Jung ,  Dong-Hee Kim ,  Jong-Tae Hwang

IPC分类号： H03F3/191

CPC分类号： H02M3/156 ,  H01G4/40 ,  H03F2203/45288

摘要： A frequency compensating circuit having a current-mode active capacitor is disclosed. The frequency compensating circuit includes a first transconductance amplifier and a current-mode active capacitor. The first transconductance amplifier amplifies a feedback voltage signal in a current mode to provide the amplified voltage to a first node. The current-mode active capacitor is coupled to the first node. Accordingly, the frequency compensating circuit may occupy a small area in the semiconductor integrated circuit because the frequency compensating circuit uses a capacitor having a small capacitance.

摘要翻译： 公开了一种具有电流模式有源电容器的频率补偿电路。 频率补偿电路包括第一跨导放大器和电流模式有源电容器。 第一跨导放大器以电流模式放大反馈电压信号，以将放大的电压提供给第一节点。 电流模式有源电容耦合到第一节点。 因此，频率补偿电路可以占用半导体集成电路中的小面积，因为频率补偿电路使用具有小电容的电容器。

公开(公告)号：US07528633B2

公开(公告)日：2009-05-05

申请号：US11560783

申请日：2006-11-16

申请人： Sang-Hwa Jung ,  Dong-Hee Kim

发明人： Sang-Hwa Jung ,  Dong-Hee Kim

IPC分类号： G01R19/00

CPC分类号： H03F3/345 ,  G01R19/0092 ,  H03F2200/462 ,  H03F2200/474 ,  H03F2200/78

摘要： A current sensing circuit and a boost converter including the current sensing circuit are disclosed. The current sensing circuit includes a switching device, a sensing transistor, and a current sensing amplifier, and senses the current flowing through the switching device. The current sensing amplifier maintains a potential of an output terminal of the switching transistor substantially equal to a potential of an output terminal of the sensing transistor based on a difference between an output current of the switching device and an output current of the sensing transistor. Accordingly, the current sensing circuit accurately senses the current flowing through the switching device.

摘要翻译： 公开了一种电流检测电路和包括电流检测电路的升压转换器。 电流感测电路包括开关器件，感测晶体管和电流感测放大器，并且感测流过开关器件的电流。 电流感测放大器基于开关器件的输出电流和感测晶体管的输出电流之间的差异，保持开关晶体管的输出端子的电位基本上等于感测晶体管的输出端子的电位。 因此，电流感测电路准确地感测流过开关装置的电流。

公开(公告)号：US20070115741A1

公开(公告)日：2007-05-24

申请号：US11560783

申请日：2006-11-16

申请人： Sang-Hwa Jung ,  Dong-Hee Kim

发明人： Sang-Hwa Jung ,  Dong-Hee Kim

IPC分类号： G11C7/00

CPC分类号： H03F3/345 ,  G01R19/0092 ,  H03F2200/462 ,  H03F2200/474 ,  H03F2200/78

摘要： A current sensing circuit and a boost converter including the current sensing circuit are disclosed. The current sensing circuit includes a switching device, a sensing transistor, and a current sensing amplifier, and senses the current flowing through the switching device. The current sensing amplifier maintains a potential of an output terminal of the switching transistor substantially equal to a potential of an output terminal of the sensing transistor based on a difference between an output current of the switching device and an output current of the sensing transistor. Accordingly, the current sensing circuit accurately senses the current flowing through the switching device.

摘要翻译： 公开了一种电流检测电路和包括电流检测电路的升压转换器。 电流感测电路包括开关器件，感测晶体管和电流感测放大器，并且感测流过开关器件的电流。 电流感测放大器基于开关器件的输出电流和感测晶体管的输出电流之间的差异，保持开关晶体管的输出端子的电位基本上等于感测晶体管的输出端子的电位。 因此，电流感测电路准确地感测流过开关装置的电流。