公开(公告)号：US07944190B2

公开(公告)日：2011-05-17

申请号：US11889636

申请日：2007-08-15

申请人： Hidekiyo Ozawa ,  Morihito Hasegawa

发明人： Hidekiyo Ozawa ,  Morihito Hasegawa

IPC分类号： G05F1/565

CPC分类号： H02M3/1588 ,  H02J7/0065 ,  H02J7/0068 ,  Y02B40/90 ,  Y02B70/1466 ,  Y10S323/906

摘要： The control circuit 30 of power supply unit and power supply unit 10 controlling output power with electric power supplied from the external power 15, comprise a monitoring portion 40 monitoring current I1 and voltage outputted from the external power supply 15 and output power of the external power supply 15 and a setting portion e1 which sets an upper limit value of current outputted from the external power supply 15 based on a monitoring result of the monitoring portion 40.

摘要翻译： 供电单元的控制电路30和从外部电源15供给的电力来控制输出功率的电源单元10包括监视电流I1和外部电源15输出的电压的监视部40以及外部电力的输出功率 电源15和设定部e1，其基于监视部40的监视结果设定从外部电源15输出的电流的上限值。

公开(公告)号：US07423415B2

公开(公告)日：2008-09-09

申请号：US11350720

申请日：2006-02-10

申请人： Morihito Hasegawa ,  Hidekiyo Ozawa

发明人： Morihito Hasegawa ,  Hidekiyo Ozawa

IPC分类号： G05F1/00

CPC分类号： H02M3/1588 ,  H02M3/1584 ,  Y02B70/1466

摘要： A differential output DC-DC converter capable of decreasing power consumption is presented. The differential output DC-DC converter 1 comprises output terminals VP and VM connected to both ends of load, and a switching regulator 10 for passing a source current. It further comprises a third transistor FET3, a choke coil L2, and a fourth transistor FET4 for rectifying a sink current in a flowing direction, and further a second regulator for allowing the sink current to flow, and issuing a voltage higher than a grounding point GND voltage and lower than a voltage of an output terminal VP, to an output terminal VM.

摘要翻译： 提出了能够降低功耗的差分输出DC-DC转换器。 差分输出DC-DC转换器1包括连接到负载两端的输出端子VP和VM以及用于使源电流通过的开关调节器10。 它还包括用于整流流动方向的吸收电流的第三晶体管FET 3，扼流线圈L 2和第四晶体管FET 4，以及用于允许吸收电流流动的第二调节器，并且发出高于 接地点GND电压并低于输出端子VP的电压输出到输出端子VM。

公开(公告)号：US20080052550A1

公开(公告)日：2008-02-28

申请号：US11889636

申请日：2007-08-15

申请人： Hidekiyo Ozawa ,  Morihito Hasegawa

发明人： Hidekiyo Ozawa ,  Morihito Hasegawa

IPC分类号： G06F1/26

CPC分类号： H02M3/1588 ,  H02J7/0065 ,  H02J7/0068 ,  Y02B40/90 ,  Y02B70/1466 ,  Y10S323/906

摘要： The control circuit 30 of power supply unit and power supply unit 10 controlling output power with electric power supplied from the external power 15, comprise a monitoring portion 40 monitoring current I1 and voltage outputted from the external power supply 15 and output power of the external power supply 15 and a setting portion e1 which sets an upper limit value of current outputted from the external power supply 15 based on a monitoring result of the monitoring portion 40.

摘要翻译： 电源单元的控制电路30和从外部电源15供给的电力来控制输出功率的电源单元10包括监视电流I 1的监视部40和从外部电源15输出的电压和外部电力的输出功率 电源15和设定部e 1，其根据监视部40的监视结果设定从外部电源15输出的电流的上限值。

公开(公告)号：US20070090819A1

公开(公告)日：2007-04-26

申请号：US11342553

申请日：2006-01-31

申请人： Morihito Hasegawa ,  Hidekiyo Ozawa

发明人： Morihito Hasegawa ,  Hidekiyo Ozawa

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  H02M2001/0022

摘要： A DC-DC converter applicable to a wide input voltage range. An error amplifier compares a divided voltage, which is generated by dividing output voltage with a plurality of resistors, and a reference voltage to generate an error signal. A voltage source generates an offset signal by offsetting the error signal. A PWM comparator compares the offset signal with a triangular wave signal to generate a drive signal for controlling activation and inactivation of a first output transistor and a second transistor at a duty corresponding to the comparison result. An offset controller determines the ratio between the output voltage and the input voltage and controls the offset voltage of the voltage source in accordance with the determination.

摘要翻译： 适用于宽输入电压范围的DC-DC转换器。 误差放大器比较通过将输出电压与多个电阻器分压而产生的分压和参考电压来产生误差信号。 电压源通过偏移误差信号产生偏移信号。 PWM比较器将偏移信号与三角波信号进行比较，以产生用于以对应于比较结果的占空比来控制第一输出晶体管和第二晶体管的激活和失活的驱动信号。 偏移控制器确定输出电压和输入电压之间的比率，并根据确定来控制电压源的偏移电压。

公开(公告)号：US07781909B2

公开(公告)日：2010-08-24

申请号：US11516611

申请日：2006-09-07

申请人： Hidekiyo Ozawa ,  Morihito Hasegawa

发明人： Hidekiyo Ozawa ,  Morihito Hasegawa

IPC分类号： H02J1/00 ,  H02J3/14

CPC分类号： H02M3/158 ,  H02M2001/008 ,  H02M2001/009 ,  Y10T307/469

摘要： It is intended to provide a control circuit of power supply, a power supply and a control method thereof capable of achieving power saving in an integrated circuit and reducing a delay time of the integrated circuit. The control circuit 50 of a power supply 10 which outputs plural DC voltages VCC, VBGP, VBGN each having a different voltage value includes a voltage changing portion SW1 which detects an output current I1 relating to a first DC voltage VCC which is one of the plural DC voltages and sets at least one DC voltage except the first DC voltage VCC based on the detected output current I1, and the like.

摘要翻译： 旨在提供能够实现集成电路中的省电并且减少集成电路的延迟时间的电源的控制电路，电源及其控制方法。 输出各具有不同电压值的多个直流电压VCC，VBGP，VBGN的电源10的控制电路50包括电压变化部分SW1，该电压变化部分SW1检测与第一直流电压VCC相关的输出电流I1，该第一直流电压为多个 DC电压并且基于检测到的输出电流I1而设置除了第一DC电压VCC之外的至少一个DC电压等。

公开(公告)号：US20070132435A1

公开(公告)日：2007-06-14

申请号：US11362513

申请日：2006-02-27

申请人： Morihito Hasegawa ,  Hidekiyo Ozawa ,  Shoji Tajiri ,  Toshihiko Kasai

发明人： Morihito Hasegawa ,  Hidekiyo Ozawa ,  Shoji Tajiri ,  Toshihiko Kasai

IPC分类号： G05F1/00

CPC分类号： H02M1/36 ,  H02M3/156 ,  H02M2003/078 ,  H03K17/302 ,  H03K2217/0018

摘要： The invention provides a DC-DC converter capable of being started up in a state in which an input voltage is low and capable of being structured without increasing a circuit size. A back-gate voltage (Vsb) is outputted from a back-gate voltage generating circuit (VBGN), and is inputted to a back gate of a transistor (FET1). During a period during which an output voltage (Vout) is lower than a reference voltage (e0), an oscillation signal (OS1) is inputted to a gate of the transistor (FET1), and the back-gate voltage (Vsb) is set at a grounded voltage. Therefore, the transistor (FET1) has a reference threshold voltage (Vto). On the other hand, during a period during which the output voltage (Vout) is higher than the reference voltage (e0), a pulse signal (PS) is inputted to the gate of the transistor (FET1), and the back-gate voltage (Vsb) is set at an output voltage of a charge pump portion (5). Therefore, the transistor (FET1) has a threshold voltage higher than the reference threshold voltage (Vto).

摘要翻译： 本发明提供一种DC-DC转换器，其能够在输入电压低的状态下启动并且能够在不增加电路尺寸的情况下被构造。 背栅电压（Vsb）从背栅极电压产生电路（VBGN）输出，并被输入到晶体管（FET1）的背栅极。 在输出电压（Vout）低于基准电压（e 0）的期间，将振荡信号（OS1）输入到晶体管（FET1）的栅极，将栅极电压（Vsb ）设置在接地电压。 因此，晶体管（FET1）具有参考阈值电压（Vto）。 另一方面，在输出电压（Vout）高于基准电压（e 0）的期间，将脉冲信号（PS）输入到晶体管（FET1）的栅极， 栅极电压（Vsb）设定在电荷泵部（5）的输出电压。 因此，晶体管（FET1）具有高于参考阈值电压（Vto）的阈值电压。

公开(公告)号：US07122995B2

公开(公告)日：2006-10-17

申请号：US11121084

申请日：2005-05-04

申请人： Morihito Hasegawa ,  Hidekiyo Ozawa

发明人： Morihito Hasegawa ,  Hidekiyo Ozawa

IPC分类号： G05F1/618

CPC分类号： H02M3/1584

摘要： A self-excited multi-phase DC—DC converter having satisfactory responsiveness when its load suddenly changes. A control unit of the converter compares output currents of first and second converter units. Based on the comparison result, the control unit generates control signals to operate a converter unit through which a smaller output current flows. For example, when an output voltage of the converter decreases due to a sudden change in the load while the first converter unit is operating to supply current, the second converter unit through which a smaller output current flows is operated to increase the output voltage.

公开(公告)号：US07957165B2

公开(公告)日：2011-06-07

申请号：US12032016

申请日：2008-02-15

申请人： Morihito Hasegawa ,  Hidekiyo Ozawa

发明人： Morihito Hasegawa ,  Hidekiyo Ozawa

IPC分类号： H02M1/36

CPC分类号： H02M1/36 ,  H02M1/32 ,  H02M3/156 ,  Y10S323/901

摘要： A DC-DC conversion circuit is configured by including a plurality of control signal generation circuits, a plurality of soft-start control circuits, and a start control circuit. The plurality of control signal generation circuits correspond to the plurality of control signals, and generate a corresponding control signal of the plurality of control signals based on a corresponding output value of a plurality of output values. The plurality of soft-start control circuits correspond to the plurality of control signals, and control a variation of the corresponding control signal at a start time of the DC-DC conversion circuit. The start control circuit instructs the corresponding soft-start control circuit to start operation in accordance with a change of the control signal taking part in an output control at the start time of the DC-DC conversion circuit.

摘要翻译： DC-DC转换电路通过包括多个控制信号生成电路，多个软启动控制电路和起动控制电路构成。 多个控制信号生成电路对应于多个控制信号，并且基于多个输出值的相应输出值生成多个控制信号的对应控制信号。 多个软启动控制电路对应于多个控制信号，并且在DC-DC转换电路的开始时间控制对应的控制信号的变化。 启动控制电路指示相应的软启动控制电路根据在DC-DC转换电路的开始时间中参与输出控制的控制信号的变化而开始工作。

公开(公告)号：US07545054B2

公开(公告)日：2009-06-09

申请号：US11447009

申请日：2006-06-06

申请人： Hidekiyo Ozawa ,  Morihito Hasegawa ,  Toru Nakamura

发明人： Hidekiyo Ozawa ,  Morihito Hasegawa ,  Toru Nakamura

IPC分类号： H02J1/00

CPC分类号： H02M3/156 ,  H02M3/33561 ,  H02M2001/008 ,  Y10T307/414

摘要： A DC-DC converter control circuit can maintain a relationship of voltages established among the output voltages even when the output voltages of DC-DC converters are independently controlled. A first reference voltage with which a high-potential back-gate voltage is controlled and a second reference voltage with which a supply voltage is controlled are dynamically controlled to be varied independently from one another. A supply voltage is applied to the inverting input terminal of a second differential-input amplifier. The second reference voltage is applied to the first non-inverting input terminal of the second differential-input amplifier, and the first reference voltage is applied to the second non-inverting input terminal thereof. The second differential-input amplifier amplifies the difference between a lower one of the first and second reference voltages applied to the two non-inverting input terminals thereof and the supply voltage applied to the inverting input terminal thereof.

摘要翻译： 即使DC-DC转换器的输出电压被独立控制，DC-DC转换器控制电路也可以保持在输出电压之间建立的电压的关系。 控制高电位背栅极电压的第一参考电压和控制电源电压的第二参考电压被动态地控制以彼此独立地变化。 电源电压被施加到第二差分输入放大器的反相输入端子。 第二参考电压被施加到第二差分输入放大器的第一非反相输入端，并且第一参考电压被施加到第二非反相输入端。 第二差分输入放大器放大施加到其两个非反相输入端的第一和第二参考电压中的较低的一个和施加到其反相输入端的电源电压之间的差。

公开(公告)号：US07279870B2

公开(公告)日：2007-10-09

申请号：US11342553

申请日：2006-01-31

申请人： Morihito Hasegawa ,  Hidekiyo Ozawa

发明人： Morihito Hasegawa ,  Hidekiyo Ozawa

IPC分类号： G05F1/613

CPC分类号： H02M3/156 ,  H02M2001/0022

摘要： A DC-DC converter applicable to a wide input voltage range. An error amplifier compares a divided voltage, which is generated by dividing output voltage with a plurality of resistors, and a reference voltage to generate an error signal. A voltage source generates an offset signal by offsetting the error signal. A PWM comparator compares the offset signal with a triangular wave signal to generate a drive signal for controlling activation and inactivation of a first output transistor and a second transistor at a duty corresponding to the comparison result. An offset controller determines the ratio between the output voltage and the input voltage and controls the offset voltage of the voltage source in accordance with the determination.

摘要翻译： 适用于宽输入电压范围的DC-DC转换器。 误差放大器比较通过将输出电压与多个电阻器分压而产生的分压和参考电压来产生误差信号。 电压源通过偏移误差信号产生偏移信号。 PWM比较器将偏移信号与三角波信号进行比较，以产生用于以对应于比较结果的占空比来控制第一输出晶体管和第二晶体管的激活和失活的驱动信号。 偏移控制器确定输出电压和输入电压之间的比率，并根据确定来控制电压源的偏移电压。