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1. 发明授权

US08598800B2 Control circuit for switching power supply 有权
标题翻译：开关电源控制电路
公开(公告)号：US08598800B2
公开(公告)日：2013-12-03
申请号：US13089741
申请日：2011-04-19
申请人： Daisuke Uchimoto , Hiroki Kikuchi , Naoki Inoue
发明人： Daisuke Uchimoto , Hiroki Kikuchi , Naoki Inoue
IPC分类号： H05B41/36 , G05F1/00 , G05F1/10
CPC分类号： H02M1/36 , H02M3/156 , H05B33/0815 , Y02B20/347
摘要： A soft-start circuit generates a soft-start voltage Vss having a voltage level that rises over time. A pulse width modulator generates a PWM signal having a duty ratio adjusted such that a feedback voltage Vout′ that corresponds to the output voltage Vout of the switching power supply matches the soft-start voltage Vss. A driver circuit controls a switching element according to the PWM signal. A capacitor is arranged such that one terminal thereof is set to a fixed electric potential. A current source generates a charge current that flows intermittently in synchronization with the PWM signal so as to charge the capacitor. The soft-start circuit outputs, as the soft-start voltage Vss, a voltage that occurs at the capacitor.
摘要翻译：软启动电路产生具有随时间上升的电压电平的软启动电压Vss。脉冲宽度调制器产生PWM信号，该PWM信号的占空比被调整为使得与开关电源的输出电压Vout相对应的反馈电压Vout'与软启动电压Vss匹配。驱动电路根据PWM信号控制开关元件。电容器被布置成使得其一个端子被设置为固定电位。电流源产生与PWM信号同步地间歇流动的充电电流，以对电容器充电。软启动电路作为软启动电压Vss输出在电容器处发生的电压。

2. 发明授权

US08624828B2 Control circuit for switching power supply 有权
标题翻译：开关电源控制电路
公开(公告)号：US08624828B2
公开(公告)日：2014-01-07
申请号：US13090605
申请日：2011-04-20
申请人： Daisuke Uchimoto , Hiroki Kikuchi
发明人： Daisuke Uchimoto , Hiroki Kikuchi
IPC分类号： G09G3/36
CPC分类号： H05B33/0815 , G09G3/3406 , G09G2320/064 , G09G2330/028 , H02M3/156 , H02M2001/009 , H05B33/0827 , Y02B20/346
摘要： A control IC controls a switching power supply configured to supply a driving voltage Vout to one terminal of an LED string to be intermittently driven. In the on period of the LED string, a pulse modulator generates a pulse signal having a duty ratio adjusted such that a detection voltage VLED that corresponds to the output voltage Vout of the switching power supply matches a predetermined reference voltage Vref. A driver drives a switching transistor included in the switching power supply according to the pulse signal. After transition from the on period to the off period, the pulse modulator reduces the duty ratio of the pulse signal over time.
摘要翻译：控制IC控制被配置为向间歇驱动的LED串的一个端子提供驱动电压Vout的开关电源。在LED串的接通期间，脉冲调制器生成占空比调整为使得与开关电源的输出电压Vout对应的检测电压VLED与规定的基准电压Vref匹配的脉冲信号。驱动器根据脉冲信号驱动包括在开关电源中的开关晶体管。在从开启周期到关闭周期的转变之后，脉冲调制器降低脉冲信号随时间的占空比。

3. 发明申请

US20080122291A1 Switching Power Supply Control Circuit, Switching Power Supply Device and Electronic Apparatus Employing the Same 审中-公开
标题翻译：开关电源控制电路，开关电源装置及其使用的电子设备
公开(公告)号：US20080122291A1
公开(公告)日：2008-05-29
申请号：US11665876
申请日：2005-09-08
申请人： Daisuke Uchimoto , Hiroaki Ando , Manabu Oyama
发明人： Daisuke Uchimoto , Hiroaki Ando , Manabu Oyama
IPC分类号： H02J1/00 , G05F1/10 , H02M3/155 , G05F1/44
CPC分类号： H02M3/1584 , H02M2001/0032 , H02M2001/009 , Y02B70/16 , Y10T307/406
摘要： A control signal Vcont is input to a control terminal, thereby switching between a normal operation mode and a light-load mode. In the normal mode, a control unit turns on/off first switch through fourth switch, and outputs boosted voltages from a first output terminal and a second output terminal. When the light-load mode is selected, the control unit stops the switching of the second switch and fourth switch. In this case, current flows in first and second output capacitors via first and second diodes, respectively, and boosting operation is performed.
摘要翻译：控制信号Vcont被输入到控制端子，从而在正常操作模式和轻负载模式之间切换。在正常模式中，控制单元通过第四开关接通/断开第一开关，并从第一输出端子和第二输出端子输出升压电压。当选择轻负载模式时，控制单元停止第二开关和第四开关的切换。在这种情况下，电流分别通过第一和第二二极管流入第一和第二输出电容器，并进行升压操作。

4. 发明申请

US20080088179A1 Switching Power Supply And Electronic Apparatus Employing The Same 有权
标题翻译：开关电源及其使用的电子设备
公开(公告)号：US20080088179A1
公开(公告)日：2008-04-17
申请号：US11664963
申请日：2005-10-14
申请人： Manabu Oyama , Hiroaki Ando , Daisuke Uchimoto
发明人： Manabu Oyama , Hiroaki Ando , Daisuke Uchimoto
IPC分类号： H02J1/00
CPC分类号： H02M3/07 , H02M2003/071 , H02M2003/077 , Y10T307/383 , Y10T307/675
摘要： In a switching power supply apparatus, an input voltage Vin applied to an input terminal is output from a first output terminal and a second output terminal after boosting or inverting of the voltage Vin. When a first and a fourth switches are turned on, a flying capacitor is charged. When a second and a fifth switches are turned on, charges charged in the flying capacitor are transferred to a first output capacitor. When a third and a fifth switches are turned on, charges charged in the flying capacitor are transferred to a second output capacitor. A voltage Vin×2 double the input voltage Vin is output from the first output terminal as a first output voltage Vout1, and a voltage −Vin obtained by inverting the input voltage is output from the second output terminal as a second output voltage.
摘要翻译：在开关电源装置中，在升压或反相电压Vin之后，从第一输出端子和第二输出端子输出施加到输入端子的输入电压Vin。当第一和第四开关接通时，对飞行电容器进行充电。当第二和第五开关接通时，在飞行电容器中充电的电荷被传送到第一输出电容器。当第三和第五开关接通时，在飞行电容器中充电的电荷被传送到第二输出电容器。作为第一输出电压Vout 1，从第一输出端子输出输入电压Vin的两倍的电压Vinx2，作为第二输出电压，从第二输出端子输出通过反相输入电压获得的电压-Vin。

5. 发明申请

US20090027022A1 CHARGE PUMP CIRCUIT, AND CONTROL CIRCUIT AND CONTROL METHOD THEREOF 有权
标题翻译：充电泵电路及其控制电路及其控制方法
公开(公告)号：US20090027022A1
公开(公告)日：2009-01-29
申请号：US12181008
申请日：2008-07-28
申请人： Manabu OYAMA , Daisuke Uchimoto
发明人： Manabu OYAMA , Daisuke Uchimoto
IPC分类号： G05F1/56
CPC分类号： H02M3/07
摘要： A first switch group includes switches provided on a path for charging a flying capacitor using an input voltage. A second switch group includes switches provided on a path for charging an output capacitor using charge stored in the flying capacitor. A pulse modulator generates a pulse signal having a duty ratio adjusted so that a feedback voltage corresponding to an output voltage of a charge pump circuit matches a given reference voltage. A driver receives the pulse signal from the pulse modulator, and turns on either one of the first switch group and the second switch group during a period corresponding to a high-time of the pulse signal and turns on the other switch group during a period corresponding to a low-time thereof.
摘要翻译：第一开关组包括用于使用输入电压对飞跨电容器充电的路径上提供的开关。第二开关组包括设置在用于对存储在飞行电容器中的电荷充电输出电容器的路径上的开关。脉冲调制器产生具有调整的占空比的脉冲信号，使得与电荷泵电路的输出电压相对应的反馈电压与给定的参考电压相匹配。驱动器接收来自脉冲调制器的脉冲信号，并且在与脉冲信号的高电平相对应的时间段期间接通第一开关组和第二开关组中的任一个，并且在相应的时间段期间导通另一个开关组到一个低时间。

6. 发明授权

US07403049B2 Triangular wave generation circuit 有权
标题翻译：三角波发生电路
公开(公告)号：US07403049B2
公开(公告)日：2008-07-22
申请号：US11513545
申请日：2006-08-31
申请人： Daisuke Uchimoto , Manabu Oyama
发明人： Daisuke Uchimoto , Manabu Oyama
IPC分类号： H03K4/06
CPC分类号： H03K4/06
摘要： A first constant-current source supplies a charging current to a second terminal of a first capacitor in which a first terminal is grounded. A first terminal of a second capacitor is grounded, and a first switch is provided between the second terminal of the first capacitor and a second terminal of the second capacitor. A second constant-current source supplies current to the second capacitor, and a second switch is provided on a current path of the second constant-current source. A third constant-current source draws out current from the first capacitor and the second capacitor. A switch controller turns on the first switch and turns off the second switch when an output voltage appearing in the second terminal of the first capacitor reaches a predetermined upper-limit voltage. The switch controller turns off the first switch and turns on the second switch when the output voltage drops to a predetermined lower-limit voltage.
摘要翻译：第一恒流源将充电电流提供给第一电容器的第二端子，其中第一端子接地。第二电容器的第一端子接地，并且第一开关设置在第一电容器的第二端子和第二电容器的第二端子之间。第二恒流源向第二电容器提供电流，并且在第二恒定电流源的电流路径上提供第二开关。第三恒流源从第一电容器和第二电容器抽出电流。当第一电容器的第二端子中出现的输出电压达到预定的上限电压时，开关控制器接通第一开关并关闭第二开关。当输出电压下降到预定的下限电压时，开关控制器关闭第一开关并接通第二开关。

7. 发明授权

US08040701B2 Control circuit and method for charge pump circuit with pulse modulation 有权
标题翻译：脉冲调制电荷泵电路的控制电路及方法
公开(公告)号：US08040701B2
公开(公告)日：2011-10-18
申请号：US12181008
申请日：2008-07-28
申请人： Manabu Oyama , Daisuke Uchimoto
发明人： Manabu Oyama , Daisuke Uchimoto
IPC分类号： H02M3/07
CPC分类号： H02M3/07
摘要： A first switch group includes switches provided on a path for charging a flying capacitor using an input voltage. A second switch group includes switches provided on a path for charging an output capacitor using charge stored in the flying capacitor. A pulse modulator generates a pulse signal having a duty ratio adjusted so that a feedback voltage corresponding to an output voltage of a charge pump circuit matches a given reference voltage. A driver receives the pulse signal from the pulse modulator, and turns on either one of the first switch group and the second switch group during a period corresponding to a high-time of the pulse signal and turns on the other switch group during a period corresponding to a low-time thereof.
摘要翻译：第一开关组包括用于使用输入电压对飞跨电容器充电的路径上提供的开关。第二开关组包括设置在用于对存储在飞行电容器中的电荷充电输出电容器的路径上的开关。脉冲调制器产生具有调整的占空比的脉冲信号，使得与电荷泵电路的输出电压相对应的反馈电压与给定的参考电压相匹配。驱动器接收来自脉冲调制器的脉冲信号，并且在与脉冲信号的高电平相对应的时间段期间接通第一开关组和第二开关组中的任一个，并且在相应的时间段期间导通另一个开关组到一个低时间。

8. 发明授权

US07830131B2 Control circuit for switching regulator 有权
标题翻译：开关稳压器控制电路
公开(公告)号：US07830131B2
公开(公告)日：2010-11-09
申请号：US11954350
申请日：2007-12-12
申请人： Daisuke Uchimoto , Manabu Oyama
发明人： Daisuke Uchimoto , Manabu Oyama
IPC分类号： G05F1/00
CPC分类号： H02M3/156 , H02M1/36
摘要： A minimum pulse signal generating circuit generates a minimum pulse signal having a predetermined minimum duty ratio, synchronously with a PWM signal. When the duty ratio of the PWM signal is smaller than the minimum duty ratio, a corrected pulse signal generating circuit fixes the logical level of the PWM signal to the level that turns off a switching transistor. A driver circuit drives the switching transistor according to a corrected PWM signal output from the corrected pulse signal generating circuit. In a case in which the level of the PWM signal is fixed by means of the corrected pulse signal generating circuit, a stop signal generating circuit generates a stop signal at a predetermined first level. When the stop signal is at the predetermined first level, at least an oscillator used for pulse modulation is stopped.
摘要翻译：最小脉冲信号发生电路与PWM信号同步地产生具有预定最小占空比的最小脉冲信号。当PWM信号的占空比小于最小占空比时，校正脉冲信号发生电路将PWM信号的逻辑电平固定为截止开关晶体管的电平。驱动电路根据从校正后的脉冲信号发生电路输出的校正后的PWM信号驱动开关晶体管。在通过校正脉冲信号产生电路固定PWM信号的电平的情况下，停止信号发生电路以预定的第一电平产生停止信号。当停止信号处于预定的第一电平时，至少停止用于脉冲调制的振荡器。

9. 发明申请

US20070211503A1 Charge-pump type switching power supply apparatus 有权
标题翻译：电荷泵式开关电源装置
公开(公告)号：US20070211503A1
公开(公告)日：2007-09-13
申请号：US11714462
申请日：2007-03-06
申请人： Manabu Oyama , Daisuke Uchimoto
发明人： Manabu Oyama , Daisuke Uchimoto
IPC分类号： H02M3/06
CPC分类号： H02M3/07
摘要： A switching power supply apparatus generates a first output voltage with a reversed polarity of an input voltage and a second input voltage of double the input voltage with the reversed polarity, and then outputs them from the first output terminal and the second output terminal. A driver circuit includes a control unit and a first switch to a sixth switch. The driver circuit repeats three charging periods in a time-division manner. The three charging periods are a first charging period during which a flying capacitor is charged with the input voltage, a second charging period in which a low-potential-side terminal of the flying capacitor is connected to a ground terminal and a first output capacitor is charged with a voltage appearing at the other end of the flying capacitor, and a third charging period in which a high-potential-side of the flying capacitor is connected with the first output terminal and a second output capacitor is charged with a voltage appearing at the other end of the flying capacitor.
摘要翻译：开关电源装置以相反极性的输入电压和输入电压的双倍的第二输入电压生成具有相反极性的第一输出电压，然后从第一输出端子和第二输出端子输出。驱动器电路包括控制单元和第六开关的第一开关。驱动器电路以时分方式重复三个充电周期。三个充电期间是飞行电容器被输入电压充电的第一充电期间，其中将飞跨电容器的低电位侧端子与接地端子连接的第二充电期间和第一输出电容器对飞跨电容器的另一端出现的电压进行充电;以及第三充电期间，其中，所述飞越电容器的高电位侧与所述第一输出端子连接，并且所述第二输出电容器以飞电容器的另一端。

10. 发明申请

US20070057707A1 Triangular wave generation circuit 有权
标题翻译：三角波发生电路
公开(公告)号：US20070057707A1
公开(公告)日：2007-03-15
申请号：US11513545
申请日：2006-08-31
申请人： Daisuke Uchimoto , Manabu Oyama
发明人： Daisuke Uchimoto , Manabu Oyama
IPC分类号： H03K4/06
CPC分类号： H03K4/06
摘要： A first constant-current source supplies a charging current to a second terminal of a first capacitor in which a first terminal is grounded. A first terminal of a second capacitor is grounded, and a first switch is provided between the second terminal of the first capacitor and a second terminal of the second capacitor. A second constant-current source supplies current to the second capacitor, and a second switch is provided on a current path of the second constant-current source. A third constant-current source draws out current from the first capacitor and the second capacitor. A switch controller turns on the first switch and turns off the second switch when an output voltage appearing in the second terminal of the first capacitor reaches a predetermined upper-limit voltage. The switch controller turns off the first switch and turns on the second switch when the output voltage drops to a predetermined lower-limit voltage.
摘要翻译：第一恒流源将充电电流提供给第一电容器的第二端子，其中第一端子接地。第二电容器的第一端子接地，并且第一开关设置在第一电容器的第二端子和第二电容器的第二端子之间。第二恒流源向第二电容器提供电流，并且在第二恒定电流源的电流路径上提供第二开关。第三恒流源从第一电容器和第二电容器抽出电流。当第一电容器的第二端子中出现的输出电压达到预定的上限电压时，开关控制器接通第一开关并关闭第二开关。当输出电压下降到预定的下限电压时，开关控制器关闭第一开关并接通第二开关。

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