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51. 发明申请

US20070132435A1 Step-up type DC-DC converter and method for controlling step-up type DC-DC converter 有权
标题翻译：升压型DC-DC转换器和控制升压型DC-DC转换器的方法
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。

52. 发明授权

US07122995B2 Multi-phase DC-DC converter and control circuit for multi-phase DC-DC converter 有权
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.

53. 发明授权

US06639812B2 Power supply control circuit that adjusts output power based on variable input power 失效
标题翻译：基于可变输入功率调整输出功率的电源和控制电路
公开(公告)号：US06639812B2
公开(公告)日：2003-10-28
申请号：US09946378
申请日：2001-09-06
申请人： Shigeaki Nakazawa , Hidetoshi Yano , Hidekiyo Ozawa , Mitsuo Saeki , Kouichi Matsuda , Shigeo Tanaka
发明人： Shigeaki Nakazawa , Hidetoshi Yano , Hidekiyo Ozawa , Mitsuo Saeki , Kouichi Matsuda , Shigeo Tanaka
IPC分类号： H02M3335
CPC分类号： H02M3/33507
摘要： A power supply control circuit connectable with an input power monitor that monitors an input power value to the power supply, an output power monitor that monitors an output power value from the power supply, and an output power controller that varies the output power value from the power supply, the power supply control circuit having an output power determiner that determines a determined output power value depending on the input power value and a power adjuster that adjusts the output power value to the determined output power value by controlling the output power controller.
摘要翻译：一种电源控制电路，其与监视电源的输入功率值的输入功率监视器连接，监视来自电源的输出功率值的输出功率监视器，以及输出功率控制器，所述电源控制电路具有输出功率确定器，所述输出功率确定器根据所述输入功率值确定确定的输出功率值;以及功率调节器，其通过控制所述输出功率控制器将所述输出功率值调整到所确定的输出功率值。

54. 发明授权

US06420858B1 DC-to-DC converter circuit having a power saving mode 有权
标题翻译：具有省电模式的DC-DC转换器电路
公开(公告)号：US06420858B1
公开(公告)日：2002-07-16
申请号：US09466133
申请日：1999-12-21
申请人： Seiya Kitagawa , Toshiyuki Matsuyama , Hidekiyo Ozawa
发明人： Seiya Kitagawa , Toshiyuki Matsuyama , Hidekiyo Ozawa
IPC分类号： G05F140
CPC分类号： H02M3/1588 , H02M2001/0032 , Y02B70/1466 , Y02B70/16
摘要： A DC-to-DC converter circuit having a power saving mode, and which achieves a high conversion efficiency without using a sense resistance. The DC-to-DC converter circuit includes a triangular wave generation circuit to generate a triangular wave signal and a differential amplifier to receive the triangular wave signal and to generate an output signal. A main switching element is provided to turn ON and OFF an input voltage, and a synchronous commutating switching element is provided to perform synchronous commutation of a load current. A detection device detects whether an output voltage of the main switching element is larger than an input voltage of the main switching element. A control device operates in a power saving mode to reduce a drive voltage of the main switching element in response to the detection device detecting that the output voltage of the main switching element is larger than the input voltage.
摘要翻译：具有省电模式的DC-DC转换器电路，并且在不使用检测电阻的情况下实现高转换效率。 DC-DC转换器电路包括三角波产生电路，用于产生三角波信号，差分放大器接收三角波信号并产生输出信号。提供主开关元件以接通和断开输入电压，并且提供同步换向开关元件以执行负载电流的同步换向。检测装置检测主开关元件的输出电压是否大于主开关元件的输入电压。控制装置以省电模式工作，以响应于检测装置检测到主开关元件的输出电压大于输入电压而降低主开关元件的驱动电压。

55. 发明授权

US6046896A DC-to-DC converter capable of preventing overvoltage 失效
标题翻译： DC-DC转换器，能够防止过电压
公开(公告)号：US6046896A
公开(公告)日：2000-04-04
申请号：US694581
申请日：1996-08-09
申请人： Mitsuo Saeki , Hidetoshi Yano , Hidekiyo Ozawa
发明人： Mitsuo Saeki , Hidetoshi Yano , Hidekiyo Ozawa
IPC分类号： H02H7/12 , H02H7/16 , H02M3/158 , H02H3/20
CPC分类号： H02H7/1213 , H02M3/1588 , H02H7/16 , Y02B70/1466
摘要： To avoid burning out a capacitor in a synchronous rectification type DC-to-DC converter due to overvoltages, the synchronous rectification type DC-to-DC converter includes a storage unit storing therein power derived from a power supply, switching elements connecting and disconnecting respective signal paths from power and ground, and a control unit controlling the connecting/disconnecting operations of the switching elements to maintain a voltage output from the storage unit at a predetermined value. The DC/DC converter also includes an overvoltage detecting unit monitoring a voltage derived from the power supply to thereby output an alarm signal when the voltage derived from the power supply exceeds a preselected voltage value, a shortcircuiting unit influencing the connecting conditions of the switching elements when the alarm signal from the overvoltage detecting unit is input therein, whereby the voltage derived from the power supply is shortcircuited, and an interrupting unit interrupting one of the signal paths by the power shortcircuited by the shortcircuiting unit.
摘要翻译：为了避免由于过电压而在同步整流型DC-DC转换器中烧毁电容器，同步整流型DC-DC转换器包括存储单元，其存储来自电源的功率，各自连接和断开的开关元件来自电源和地的信号路径，以及控制单元，控制开关元件的连接/断开操作，以将从存储单元输出的电压保持在预定值。 DC / DC转换器还包括过电压检测单元，其监视从电源导出的电压，从而当从电源导出的电压超过预选电压值时输出报警信号;影响开关元件的连接条件的短路单元当来自过电压检测单元的报警信号被输入时，由电源导出的电压短路，并且中断单元通过由短路单元短路的电力中断信号路径之一。

56. 发明授权

US5959368A Power supply apparatus for supplying power from a plurality of batteries to a plurality of loads, and electronic appliance using the power supply apparatus 失效
标题翻译：用于从多个电池向多个负载供电的电源装置，以及使用该电源装置的电子设备
公开(公告)号：US5959368A
公开(公告)日：1999-09-28
申请号：US962966
申请日：1997-10-24
申请人： Takeshi Kubo , Kuniaki Saito , Hidekiyo Ozawa
发明人： Takeshi Kubo , Kuniaki Saito , Hidekiyo Ozawa
IPC分类号： G06F1/26 , G05F1/00 , H02J1/10 , H02J7/00 , H02J9/06
CPC分类号： H02J1/102 , H02J7/0024 , H02J7/0063 , H02J2007/0067 , H02M2001/008 , Y10T307/305 , Y10T307/344 , Y10T307/359 , Y10T307/391 , Y10T307/461 , Y10T307/469 , Y10T307/527
摘要： In a power supply apparatus including a plurality of batteries and a plurality of power supply portions for connecting to loads, a plurality of switches connect these batteries to these power supply portions, respectively. The apparatus further includes a control mechanism which controls the opening and closing operations of the switches. When one of the switches is turned on in one of the power supply means, the control mechanism executes the control in such a manner that the other switches are turned off. The control mechanism further controls each of the switches on the basis of the remaining capacity of each battery and the load state of each power supply portion. Accordingly, the power supply operation can be flexibly carried out.
摘要翻译：在包括多个电池和用于连接到负载的多个电源部分的电源设备中，多个开关分别将这些电池连接到这些电源部分。该装置还包括控制开关的打开和关闭操作的控制机构。当其中一个开关在其中一个电源装置中被接通时，控制机构以其它开关被关闭的方式执行控制。控制机构根据各电池的剩余容量和各供电部的负载状态进一步控制各开关。因此，能够灵活地进行供电动作。

57. 发明授权

US5872445A Power supply device having low internal power consumption and electronic appliances using said power supply device 失效
标题翻译：具有低内部功耗的电源装置和使用所述电源装置的电子设备
公开(公告)号：US5872445A
公开(公告)日：1999-02-16
申请号：US511350
申请日：1995-08-04
申请人： Hidekiyo Ozawa , Masafumi Okumura , Hidetoshi Yano , Mituo Saeki
发明人： Hidekiyo Ozawa , Masafumi Okumura , Hidetoshi Yano , Mituo Saeki
IPC分类号： H02J7/00 , H02J7/10 , H02J7/34 , H02J7/04
CPC分类号： H02J7/0068 , H02J7/0031 , Y10S320/12
摘要： A power supply device includes a secondary battery and a charger, and can further utilize an external D.C. power supply. A switch is interposed between a negative electrode of the secondary battery and the ground. This switch is turned OFF when the external D.C. power supply is connected to the power supply device, and is turned ON when the external D.C. power supply is removed from the power supply device. The charger controls the charge of the secondary battery from the external D.C. power supply by regulating the potential of the negative electrode of the battery. A contact remains OFF while the external D.C. power supply is connected to the power supply device. In consequence, a current does not directly flow from the external D.C. power supply to the secondary battery. Therefore, a back-flow prevention diode, which otherwise results in power consumption, need not be disposed between the secondary battery and the load.
摘要翻译：电源装置包括二次电池和充电器，并且可以进一步利用外部直流电源。在二次电池的负极和地之间插入开关。当外部直流电源连接到电源设备时，该开关关闭，并且当外部直流电源从电源设备中拔出时，该开关接通。充电器通过调节电池负极的电位从外部直流电源控制二次电池的充电。当外部直流电源连接到电源设备时，触点保持关闭。因此，电流不直接从外部直流电源流向二次电池。因此，不需要在二次电池和负载之间设置逆流防止二极管，否则导致功率消耗。

58. 发明授权

US5739667A Control system for charging batteries and electronic apparatus using same 失效
公开(公告)号：US5739667A
公开(公告)日：1998-04-14
申请号：US578805
申请日：1995-12-26
申请人： Kouichi Matsuda , Mitsuo Saeki , Nobuo Tanaka , Hidekiyo Ozawa
发明人： Kouichi Matsuda , Mitsuo Saeki , Nobuo Tanaka , Hidekiyo Ozawa
IPC分类号： G01R31/36 , H01M10/44 , H02J1/00 , H02J7/10 , H02J7/34 , H02J9/06 , H02J7/00
CPC分类号： H02J7/0072 , H02J9/061
摘要： A control system for charging enabling efficient charging of rechargeable batteries in an electronic apparatus which charges its rechargeable batteries by using a charger circuit when driving the apparatus by using an external power source, including first detecting unit for detecting a differential value between a maximum permissible charging current allowed by the rechargeable batteries and a charging current flowing to the rechargeable batteries; second detecting unit for detecting a maximum usable current by detecting a differential value between a maximum supplyable current allowed by the external power source and the current consumption of the apparatus; third detecting unit for detecting a differential value between a maximum useable current and the charging current flowing to the rechargeable batteries; and control unit for controlling the system in accordance with the differential values detected by the first and third detecting units so that the charger circuit generates the maximum charging current within the range where the charging current flowing to the rechargeable batteries does not exceed either of the maximum permissible charging current and the maximum useable current.

59. 发明授权

US5625237A Remove power source device having improved capacity indication capability, and an electronic device using the removable power source device 失效
标题翻译：移除具有提高的容量指示能力的电源装置，以及使用可拆卸电源装置的电子装置
公开(公告)号：US5625237A
公开(公告)日：1997-04-29
申请号：US496616
申请日：1995-06-29
申请人： Mituo Saeki , Masafumi Okumura , Hidekiyo Ozawa
发明人： Mituo Saeki , Masafumi Okumura , Hidekiyo Ozawa
IPC分类号： H02J7/00 , H02J7/02 , H02J7/34 , H02J9/00 , H02J9/06 , H02J1/16
CPC分类号： H02J7/027 , Y10S320/12 , Y10S320/21 , Y10T307/527 , Y10T307/615 , Y10T307/625
摘要： A power source device capable of using both an external DC power source and a battery contained therein, and an electronic device using this power source device. A circuit is provided to measure the battery voltage, to calculate the remaining capacity of the battery and to indicate the remaining capacity. Means is provided which detects the state where no battery is mounted in the power source device, and short-circuits the input side of the battery voltage-measuring circuit. When no battery is mounted, therefore, a voltage leaking from the external DC power source is not erroneously measured as the battery voltage, and the remaining amount of power of the battery is correctly calculated.
摘要翻译：一种能够使用外部DC电源和包含在其中的电池的电源装置，以及使用该电源装置的电子装置。提供电路来测量电池电压，以计算电池的剩余容量并指示剩余容量。提供了检测电源装置中没有电池安装状态的装置，并且使电池电压测量电路的输入侧短路。因此，当没有安装电池时，从外部直流电源泄漏的电压不会被作为电池电压被错误地测量，并且电池的剩余电量被正确计算。

60. 发明授权

US07705483B2 DC-DC converter control circuit, DC-DC converter, power supply unit, and DC-DC converter control method 有权
标题翻译： DC-DC转换器控制电路，DC-DC转换器，电源单元和DC-DC转换器控制方法
公开(公告)号：US07705483B2
公开(公告)日：2010-04-27
申请号：US11526051
申请日：2006-09-25
申请人： Hidekiyo Ozawa , Morihito Hasegawa
发明人： Hidekiyo Ozawa , Morihito Hasegawa
IPC分类号： H02J3/00 , H02J1/00 , H02J1/04
CPC分类号： H02M3/156 , H02M2001/008 , H02M2001/009 , Y10T307/281 , Y10T307/406
摘要： An object of the present invention is to provide a DC-DC converter control circuit capable of maintaining, even when any one of a plural number of DC-DC converters enters the abnormal state due to the occurrence of a failure, a voltage relationship between the output voltage of the faulty DC-DC converter and the output voltage of another DC-DC converter. An error amplifier ERA1G has an inverting input, a first non-inverting input, and a second non-inverting input. A first divided voltage VV1 provided from a first voltage divider circuit VD1 is fed into the inverting input; a reference voltage e1G from ground is fed into the first non-inverting input; and a second divided voltage VV2 provided from a second voltage divider circuit VD2 is fed into the second non-inverting input. The error amplifier ERA1G amplifies the error between the lower of the two voltage inputs fed into the two non-inverting inputs (i.e. the lower of the reference voltage e1G and the second divided voltage VV2), and the first divided voltage VV1 fed into the inverting input. The output terminal of the error amplifier ERA1G is connected to the input terminal of a PWM unit P1G.
摘要翻译：本发明的一个目的是提供一种DC-DC转换器控制电路，即使当多个DC-DC转换器中的任何一个由于发生故障而进入异常状态时，也能够维持故障DC-DC转换器的输出电压和另一个DC-DC转换器的输出电压。误差放大器ERA1G具有反相输入，第一同相输入和第二同相输入。从第一分压电路VD1提供的第一分压VV1被馈送到反相输入端; 来自地的参考电压e1G被馈送到第一同相输入端; 并且从第二分压器电路VD2提供的第二分压VV2被馈送到第二同相输入端。误差放大器ERA1G放大馈送到两个同相输入端的两个电压输入的较低端（即，参考电压e1G和第二分压VV2的较低者）之间的误差，并将第一分压VV1馈入反相输入。误差放大器ERA1G的输出端连接到PWM单元P1G的输入端。

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