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1.发明申请CONTROL CIRCUIT OF CURRENT MODE DC-DC CONVERTER AND CONTROL METHOD OF CURRENT MODE DC-DC CONVERTER 有权电流模式DC-DC转换器的控制电路和电流模式DC-DC转换器的控制方法公开(公告)号：US20080111530A1
公开(公告)日：2008-05-15
申请号：US11936933
申请日：2007-11-08
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M2001/0009
摘要： To provide a control circuit of a current mode DC-DC converter, a current mode DC-DC converter and a control method thereof having excellent high-speed responsiveness with respect to fluctuations in output voltage. The control circuit of the current mode DC-DC converter serves as a DC-DC converter 1 that controls a peak value of a coil current and comprises a window comparator that detects whether an output voltage VOUT is within a predetermined voltage range including a target voltage, and a peak current setting unit that sets a peak current setting value of a coil current to a lower limit value or an upper limit value in response to a high or low voltage level of the output voltage VOUT, in the case that the output voltage VOUT is not within the predetermined voltage range including the target voltage.
摘要翻译： 提供电流模式DC-DC转换器的控制电路，电流模式DC-DC转换器及其控制方法，其具有相对于输出电压波动的优异的高速响应性。 电流模式DC-DC转换器的控制电路充当DC-DC转换器1，其控制线圈电流的峰值，并且包括窗口比较器，其检测输出电压VOUT是否在包括目标电压的预定电压范围内 以及峰值电流设定单元，其在输出电压的情况下，将线圈电流的峰值电流设定值设定为响应于输出电压VOUT的高或低电压电平的下限值或上限值 VOUT不在包括目标电压的预定电压范围内。
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公开(公告)号：US07936156B2
公开(公告)日：2011-05-03
申请号：US12136579
申请日：2008-06-10
IPC分类号： G05F1/40
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A first power supply line and having a first conductivity type a second transistor coupled between the first transistor and a second power supply line, and having the first conductivity type an output unit driving a first control signal causing the first transistor to become conductive, based on a drive voltage, and outputting the first control signal to the first transistor and a boot strap circuit including a capacitor having a first end coupled to a node of the first transistor and the second transistor and supplying the output unit with the drive voltage based on the capacitor, wherein an electric potential of the first end is reduced before the first transistor becomes conductive.
摘要翻译： 第一电源线并具有第一导电类型，第二晶体管耦合在第一晶体管和第二电源线之间，并且具有第一导电类型，驱动第一控制信号使第一晶体管导通的输出单元基于 驱动电压，并且将第一控制信号输出到第一晶体管，以及引导电路，其包括具有耦合到第一晶体管和第二晶体管的节点的第一端的电容器，并且基于该第一晶体管提供驱动电压 电容器，其中在所述第一晶体管导通之前所述第一端的电位减小。
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3.发明申请CONTROL CIRCUIT FOR SYNCHRONOUS RECTIFIER-TYPE DC-DC CONVERTER, SYNCHRONOUS RECTIFIER-TYPE DC-DC CONVERTER AND CONTROL METHOD THEREOF 有权同步整流器型DC-DC转换器，同步整流器型DC-DC转换器的控制电路及其控制方法公开(公告)号：US20080111531A1
公开(公告)日：2008-05-15
申请号：US11937818
申请日：2007-11-09
IPC分类号： G05F1/10
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： To provide a control circuit for a synchronous rectifier-type DC-DC converter, a synchronous rectifier-type DC-DC converter and a control method thereof in which, in a light load state and a no-load state, an output voltage can be dropped to thus prevent an overshoot state from continuing. A synchronous rectifier-type DC-DC converter 10 and a control circuit 20A thereof comprising a first switching element FET1 that is made conductive when power is accumulated in an induction element L1, and a second switching element FET2 that is made conductive when power accumulated in induction element L1 is supplied to a load, also comprises a detecting unit COMP2 that detects that a value of an output voltage VOUT of the synchronous rectifier-type DC-DC converter 10A is a predetermined voltage value that is higher than a target voltage value, and control units COMP1 and OR1 that maintain the second switching element FET2 in a conductive state after discharge of the power accumulated in the induction element L1 is finished, based on the detection results of the detecting unit COMP2.
摘要翻译： 为了提供同步整流型DC-DC转换器的控制电路，同步整流型DC-DC转换器及其控制方法，其中在轻负载状态和空载状态下，输出电压可以是 从而防止过冲状态继续。 同步整流型DC-DC转换器10及其控制电路20A包括当在感应元件L 1中蓄电时导通的第一开关元件FET1和导通的第二开关元件FET2 当感应元件L 1中蓄积的功率被提供给负载时，还包括检测单元COMP2，该检测单元COMP2检测同步整流型DC-DC转换器10A的输出电压VOUT的值是预定的电压值， 高于目标电压值，并且在积累在感应元件L 1中的功率放电之后将第二开关元件FET 2维持在导通状态的控制单元COMP 1和OR 1基于检测的检测结果而完成 单位COMP 2。
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4.发明授权Control circuit for synchronous rectifier-type DC-DC converter, synchronous rectifier-type DC-DC converter and control method thereof 有权同步整流型DC-DC转换器的控制电路，同步整流型DC-DC转换器及其控制方法公开(公告)号：US07843179B2
公开(公告)日：2010-11-30
申请号：US11937818
申请日：2007-11-09
IPC分类号： G05F1/59
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： To provide a control circuit for a synchronous rectifier-type DC-DC converter, a synchronous rectifier-type DC-DC converter and a control method thereof in which, in a light load state and a no-load state, an output voltage can be dropped to thus prevent an overshoot state from continuing. A synchronous rectifier-type DC-DC converter 10 and a control circuit 20A thereof comprising a first switching element FET1 that is made conductive when power is accumulated in an induction element L1, and a second switching element FET2 that is made conductive when power accumulated in induction element L1 is supplied to a load, also comprises a detecting unit COMP2 that detects that a value of an output voltage VOUT of the synchronous rectifier-type DC-DC converter 10A is a predetermined voltage value that is higher than a target voltage value, and control units COMP1 and OR1 that maintain the second switching element FET2 in a conductive state after discharge of the power accumulated in the induction element L1 is finished, based on the detection results of the detecting unit COMP2.
摘要翻译： 为了提供同步整流型DC-DC转换器的控制电路，同步整流型DC-DC转换器及其控制方法，其中在轻负载状态和空载状态下，输出电压可以是 从而防止过冲状态继续。 同步整流器型DC-DC转换器10及其控制电路20A包括当在感应元件L1中蓄电时导通的第一开关元件FET1和当电力累积在第二开关元件FET2中时导通的第二开关元件FET2 感应元件L1被提供给负载，还包括检测单元COMP2，其检测同步整流型DC-DC转换器10A的输出电压VOUT的值是比目标电压值高的预定电压值， 并且基于检测单元COMP2的检测结果，完成了在感应元件L1中累积的功率放电之后将第二开关元件FET2保持在导通状态的控制单元COMP1和OR1。
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5.发明授权公开(公告)号：US07821236B2
公开(公告)日：2010-10-26
申请号：US11937822
申请日：2007-11-09
CPC分类号： H02M3/1588 , H02M2001/0032 , Y02B70/1466 , Y02B70/16
摘要： A DC-DC converter reducing reverse current and maintaining high conversion efficiency under a light load. The DC-DC converter perform pulse width modulation (PWM) or pulse frequency modulation (PFM) and includes a drive control circuit generating a first drive signal and a second drive signal activating and inactivating a first transistor and a second transistor in a complementary manner. A reversed flow detection circuit detects current flowing to the second transistor and generates a detection signal controlling activation and inactivation of the second transistor. A detection signal invalidation circuit, coupled to the reversed flow detection circuit and the drive control circuit, receiving an operation switch signal and invalidating the detection signal in response to the operation switch signal during at least a certain period of the PWM.
摘要翻译： DC-DC转换器减轻反向电流并在轻负载下保持较高的转换效率。 DC-DC转换器执行脉冲宽度调制（PWM）或脉冲频率调制（PFM），并且包括产生第一驱动信号的驱动控制电路和以互补方式激活和去激活第一晶体管和第二晶体管的第二驱动信号。 逆流检测电路检测流向第二晶体管的电流，并产生控制第二晶体管的激活和失活的检测信号。 一个检测信号无效电路，耦合到反向流量检测电路和驱动控制电路，在PWM的至少一定周期期间响应于操作开关信号接收操作开关信号和使检测信号无效。
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6.发明授权Control circuit of current mode DC-DC converter and control method of current mode DC-DC converter 有权电流模式DC-DC转换器的控制电路和电流模式DC-DC转换器的控制方法公开(公告)号：US07733074B2
公开(公告)日：2010-06-08
申请号：US11936933
申请日：2007-11-08
CPC分类号： H02M3/156 , H02M2001/0009
摘要： To provide a control circuit of a current mode DC-DC converter, a current mode DC-DC converter and a control method thereof having excellent high-speed responsiveness with respect to fluctuations in output voltage. The control circuit of the current mode DC-DC converter serves as a DC-DC converter 1 that controls a peak value of a coil current and comprises a window comparator that detects whether an output voltage VOUT is within a predetermined voltage range including a target voltage, and a peak current setting unit that sets a peak current setting value of a coil current to a lower limit value or an upper limit value in response to a high or low voltage level of the output voltage VOUT, in the case that the output voltage VOUT is not within the predetermined voltage range including the target voltage.
摘要翻译： 提供电流模式DC-DC转换器的控制电路，电流模式DC-DC转换器及其控制方法，其具有相对于输出电压波动的优异的高速响应性。 电流模式DC-DC转换器的控制电路充当DC-DC转换器1，其控制线圈电流的峰值，并且包括窗口比较器，其检测输出电压VOUT是否在包括目标电压的预定电压范围内 以及峰值电流设定单元，其在输出电压的情况下，将线圈电流的峰值电流设定值设定为响应于输出电压VOUT的高或低电压电平的下限值或上限值 VOUT不在包括目标电压的预定电压范围内。
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公开(公告)号：US20080136383A1
公开(公告)日：2008-06-12
申请号：US11937822
申请日：2007-11-09
IPC分类号： G05F1/08
CPC分类号： H02M3/1588 , H02M2001/0032 , Y02B70/1466 , Y02B70/16
摘要： A DC-DC converter reducing reverse current and maintaining high conversion efficiency under a light load. The DC-DC converter perform pulse width modulation (PWM) or pulse frequency modulation (PFM) and includes a drive control circuit generating a first drive signal and a second drive signal activating and inactivating a first transistor and a second transistor in a complementary manner. A reversed flow detection circuit detects current flowing to the second transistor and generates a detection signal controlling activation and inactivation of the second transistor. A detection signal invalidation circuit, coupled to the reversed flow detection circuit and the drive control circuit, receiving an operation switch signal and invalidating the detection signal in response to the operation switch signal during at least a certain period of the PWM.
摘要翻译： DC-DC转换器减轻反向电流并在轻负载下保持较高的转换效率。 DC-DC转换器执行脉冲宽度调制（PWM）或脉冲频率调制（PFM），并且包括产生第一驱动信号的驱动控制电路和以互补方式激活和去激活第一晶体管和第二晶体管的第二驱动信号。 逆流检测电路检测流向第二晶体管的电流，并产生控制第二晶体管的激活和失活的检测信号。 一个检测信号无效电路，耦合到反向流量检测电路和驱动控制电路，在PWM的至少一定周期期间响应于操作开关信号接收操作开关信号和使检测信号无效。
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8.发明授权DC-DC converter, power supply voltage supplying method, and power supply voltage supplying system 有权DC-DC转换器，电源电压供给方式和电源电压供给系统公开(公告)号：US07916503B2
公开(公告)日：2011-03-29
申请号：US12055437
申请日：2008-03-26
IPC分类号： H02M3/335
摘要： According to one aspect of the invention, a DC-DC converter including a soft-start function of a soft start in response to a soft-start signal, comprises: a detection circuit that detects whether the soft-start signal is active at an end of a soft-start operation; and an output voltage control circuit that controls an output voltage based on detection result of the detection circuit.
摘要翻译： 根据本发明的一个方面，一种DC-DC转换器，包括响应于软启动信号的软启动的软启动功能，包括：检测电路，用于检测软启动信号在末端是否有效 的软启动操作; 以及输出电压控制电路，其基于检测电路的检测结果来控制输出电压。
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公开(公告)号：US20080303500A1
公开(公告)日：2008-12-11
申请号：US12136579
申请日：2008-06-10
IPC分类号： G05F1/00
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A first power supply line and having a first conductivity type a second transistor coupled between the first transistor and a second power supply line, and having the first conductivity type an output unit driving a first control signal causing the first transistor to become conductive, based on a drive voltage, and outputting the first control signal to the first transistor and a boot strap circuit including a capacitor having a first end coupled to a node of the first transistor and the second transistor and supplying the output unit with the drive voltage based on the capacitor, wherein an electric potential of the first end is reduced before the first transistor becomes conductive.
摘要翻译： 第一电源线并具有第一导电类型，第二晶体管耦合在第一晶体管和第二电源线之间，并且具有第一导电类型，驱动第一控制信号使第一晶体管导通的输出单元基于 驱动电压，并且将第一控制信号输出到第一晶体管，以及引导电路，其包括具有耦合到第一晶体管和第二晶体管的节点的第一端的电容器，并且基于该第一晶体管提供驱动电压 电容器，其中在所述第一晶体管导通之前所述第一端的电位减小。
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10.发明授权Control circuit for power supply including a detection circuit and a regulation circuit for regulating switching timing 有权用于电源的控制电路包括检测电路和用于调节切换定时的调节电路公开(公告)号：US08988052B2
公开(公告)日：2015-03-24
申请号：US13088328
申请日：2011-04-15
CPC分类号： H02M3/156 , H02M3/1588 , H02M2001/0032 , Y02B70/1466 , Y02B70/16
摘要： A control circuit for controlling a power supply including a first switch and a second switch coupled in series between a first potential and a second potential. The control circuit includes a detection circuit that detects a magnitude relation of a voltage value at a node between the first and second switches and a reference value during a period in which the first switch and the second switch are inactivated. The detection circuit generates a control signal corresponding to the magnitude relation. A regulation circuit regulates a switching timing of the second switch in response to the control signal to decrease a difference between the voltage value at the node and the reference value.
摘要翻译： 一种用于控制包括在第一电位和第二电位之间串联耦合的第一开关和第二开关的电源的控制电路。 控制电路包括检测电路，其检测在第一开关和第二开关之间的节点处的电压值的大小关系和在第一开关和第二开关被停用的时段期间的参考值。 检测电路产生对应于幅度关系的控制信号。 调节电路响应于控制信号来调节第二开关的开关定时，以减小节点处的电压值与参考值之间的差。
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