专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07019501B2 DC/DC converter 有权
标题翻译： DC / DC转换器
公开(公告)号：US07019501B2
公开(公告)日：2006-03-28
申请号：US10806150
申请日：2004-03-23
申请人： Hirofumi Dogome , Takashi Matsumoto , Kyuichi Takimoto , Hidekiyo Ozawa , Chikara Tsuchiya
发明人： Hirofumi Dogome , Takashi Matsumoto , Kyuichi Takimoto , Hidekiyo Ozawa , Chikara Tsuchiya
IPC分类号： G05F1/40
CPC分类号： H02M3/158 , H02J7/0065 , H02M1/088
摘要： A DC/DC converter enabling an increase in frequency. The DC/DC converter includes a main transistor, a synchronization transistor, a control circuit, which controls the main transistor and the synchronization transistor, and a capacitor, which is charged to generate gate voltage for the main transistor. The control circuit includes a charging time setting circuit for setting the activation time of the main transistor and the synchronization transistor.
摘要翻译： DC / DC转换器，能够提高频率。 DC / DC转换器包括主晶体管，同步晶体管，控制主晶体管和同步晶体管的控制电路以及被充电以产生主晶体管的栅极电压的电容器。控制电路包括用于设定主晶体管和同步晶体管的激活时间的充电时间设定电路。

2. 发明申请

US20050030777A1 DC/DC converter 有权
标题翻译： DC / DC转换器
公开(公告)号：US20050030777A1
公开(公告)日：2005-02-10
申请号：US10806150
申请日：2004-03-23
申请人： Hirofumi Dogome , Takashi Matsumoto , Kyuichi Takimoto , Hidekiyo Ozawa , Chikara Tsuchiya
发明人： Hirofumi Dogome , Takashi Matsumoto , Kyuichi Takimoto , Hidekiyo Ozawa , Chikara Tsuchiya
IPC分类号： H02M3/155 , H02J7/00 , H02M1/088 , H02M3/158 , H02M7/00
CPC分类号： H02M3/158 , H02J7/0065 , H02M1/088
摘要： A DC/DC converter enabling an increase in frequency. The DC/DC converter includes a main transistor, a synchronization transistor, a control circuit, which controls the main transistor and the synchronization transistor, and a capacitor, which is charged to generate gate voltage for the main transistor. The control circuit includes a charging time setting circuit for setting the activation time of the main transistor and the synchronization transistor.
摘要翻译： DC / DC转换器，能够提高频率。 DC / DC转换器包括主晶体管，同步晶体管，控制主晶体管和同步晶体管的控制电路以及被充电以产生主晶体管的栅电压的电容器。控制电路包括用于设定主晶体管和同步晶体管的激活时间的充电时间设定电路。

3. 发明申请

US20050264270A1 DC to DC converter producing output voltage exhibit rise and fall characteristics independent of load thereon 失效
标题翻译：产生输出电压的直流 - 直流转换器具有独立于其上的负载的上升和下降特性
公开(公告)号：US20050264270A1
公开(公告)日：2005-12-01
申请号：US11134270
申请日：2005-05-23
申请人： Mitsuo Saeki , Hidetoshi Yano , Hidekiyo Ozawa , Seiya Kitagawa , Toshiyuki Matsuyama , Takashi Matsumoto , Kyuichi Takimoto , Yoshiaki Sano
发明人： Mitsuo Saeki , Hidetoshi Yano , Hidekiyo Ozawa , Seiya Kitagawa , Toshiyuki Matsuyama , Takashi Matsumoto , Kyuichi Takimoto , Yoshiaki Sano
IPC分类号： H02M3/155 , G05F1/40 , H02M1/00 , H02M1/36 , H02M3/156
CPC分类号： H02M1/36 , H02M3/156 , H02M2001/008
摘要： A direct-current to direct-current conversion (DC/DC) apparatus includes a control circuit having an error amplifier for voltage control, basing the conversion on a pulse width modulation control using an output of the error amplifier. The error amplifier inputs a voltage signal corresponding to an output voltage of a DC/DC result and a plurality of reference voltage signals. The DC/DC apparatus also includes a soft start capacitor to provide one of the plurality of reference voltage signals. The error amplifier amplifies a difference between the voltage signal corresponding of the output voltage of a DC/DC result and a voltage signal of a lower potential among the plurality of reference voltage signals and carries out the pulse width modulation control. Furthermore, the control circuit includes a circuit for discharging charges corresponding to the output voltage of the DC/DC result when a power supply to the control circuit is turned off.
摘要翻译：直流到直流转换（DC / DC）装置包括具有用于电压控制的误差放大器的控制电路，利用误差放大器的输出根据脉宽调制控制进行转换。误差放大器输入对应于DC / DC结果和多个参考电压信号的输出电压的电压信号。 DC / DC装置还包括软启动电容器，以提供多个参考电压信号中的一个。误差放大器放大对应于DC / DC结果的输出电压的电压信号与多个参考电压信号中较低电位的电压信号之间的差值，并执行脉宽调制控制。此外，当控制电路的电源被断开时，控制电路包括用于放电对应于DC / DC结果的输出电压的电荷的电路。

4. 发明授权

US07129682B2 DC to DC converter producing output voltage exhibit rise and fall characteristics independent of load thereon 失效
标题翻译：产生输出电压的直流 - 直流转换器具有独立于其上的负载的上升和下降特性
公开(公告)号：US07129682B2
公开(公告)日：2006-10-31
申请号：US11134270
申请日：2005-05-23
申请人： Mitsuo Saeki , Hidetoshi Yano , Hidekiyo Ozawa , Seiya Kitagawa , Toshiyuki Matsuyama , Takashi Matsumoto , Kyuichi Takimoto , Yoshiaki Sano
发明人： Mitsuo Saeki , Hidetoshi Yano , Hidekiyo Ozawa , Seiya Kitagawa , Toshiyuki Matsuyama , Takashi Matsumoto , Kyuichi Takimoto , Yoshiaki Sano
IPC分类号： G05F1/40
CPC分类号： H02M1/36 , H02M3/156 , H02M2001/008
摘要： A direct-current to direct-current conversion (DC/DC) apparatus includes a control circuit having an error amplifier for voltage control, basing the conversion on a pulse width modulation control using an output of the error amplifier. The error amplifier inputs a voltage signal corresponding to an output voltage of a DC/DC result and a plurality of reference voltage signals. The DC/DC apparatus also includes a soft start capacitor to provide one of the plurality of reference voltage signals. The error amplifier amplifies a difference between the voltage signal corresponding of the output voltage of a DC/DC result and a voltage signal of a lower potential among the plurality of reference voltage signals and carries out the pulse width modulation control. Furthermore, the control circuit includes a circuit for discharging charges corresponding to the output voltage of the DC/DC result when a power supply to the control circuit is turned off.
摘要翻译：直流到直流转换（DC / DC）装置包括具有用于电压控制的误差放大器的控制电路，利用误差放大器的输出根据脉宽调制控制的转换。误差放大器输入对应于DC / DC结果和多个参考电压信号的输出电压的电压信号。 DC / DC装置还包括软启动电容器，以提供多个参考电压信号中的一个。误差放大器放大对应于DC / DC结果的输出电压的电压信号与多个参考电压信号中较低电位的电压信号之间的差值，并执行脉宽调制控制。此外，当控制电路的电源被断开时，控制电路包括用于放电对应于DC / DC结果的输出电压的电荷的电路。

5. 发明授权

US06664772B2 DC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereon 失效
标题翻译：直流到直流转换器产生不依赖于负载的上升和下降特性的输出电压
公开(公告)号：US06664772B2
公开(公告)日：2003-12-16
申请号：US09860827
申请日：2001-05-21
申请人： Mitsuo Saeki , Hidetoshi Yano , Hidekiyo Ozawa , Seiya Kitagawa , Toshiyuki Matsuyama , Takashi Matsumoto , Kyuichi Takimoto , Yoshiaki Sano
发明人： Mitsuo Saeki , Hidetoshi Yano , Hidekiyo Ozawa , Seiya Kitagawa , Toshiyuki Matsuyama , Takashi Matsumoto , Kyuichi Takimoto , Yoshiaki Sano
IPC分类号： G05F140
CPC分类号： H02M1/36 , H02M3/156 , H02M2001/008
摘要： A direct-current to direct-current conversion (DC/DC) apparatus includes a control circuit having an error amplifier for voltage control and controlling a direct-current to direct-current conversion based on a pulse width modulation control using an output of the error amplifier. The error amplifier inputs a voltage signal corresponding to an output voltage of a DC/DC result and a plurality of reference voltage signals. The DC/DC apparatus also includes a soft start capacitor to provide one of the plurality of reference voltage signals. The error amplifier amplifies a difference between the voltage signal corresponding to the output voltage of a DC/DC result and a voltage signal of a lower potential among the plurality of reference voltage signals and, based on-the amplified output, carries out the pulse width modulation control. Furthermore, the control circuit includes a circuit for discharging charges corresponding to the output voltage of the DC/DC result when a power supply to the control circuit is turned off. By the constitution, it is possible to easily realize power turn-on/turn-off sequence controls without requiring any special logic circuit, and thus to control rise/fall characteristics of the output voltage without depending on the load.
摘要翻译：直流到直流转换（DC / DC）装置包括控制电路，该控制电路具有用于电压控制的误差放大器，并且基于使用误差输出的脉冲宽度调制控制来控制直流到直流转换的直流放大器误差放大器输入对应于DC / DC结果和多个参考电压信号的输出电压的电压信号。 DC / DC装置还包括软启动电容器，以提供多个参考电压信号中的一个。误差放大器放大对应于DC / DC结果的输出电压的电压信号与多个参考电压信号中较低电位的电压信号之间的差值，并且基于放大的输出，执行脉冲宽度调制控制。此外，当控制电路的电源被断开时，控制电路包括用于对与DC / DC结果的输出电压相对应的电荷进行放电的电路。通过这种结构，可以容易地实现电源接通/转换不需要任何特殊逻辑电路，从而控制输出电压的上升/下降特性，而不依赖于负载。

6. 发明授权

US06911806B2 DC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereon 失效
标题翻译：直流到直流转换器产生不依赖于负载的上升和下降特性的输出电压
公开(公告)号：US06911806B2
公开(公告)日：2005-06-28
申请号：US10734170
申请日：2003-12-15
申请人： Mitsuo Saeki , Hidetoshi Yano , Hidekiyo Ozawa , Seiya Kitagawa , Toshiyuki Matsuyama , Takashi Matsumoto , Kyuichi Takimoto , Yoshiaki Sano
发明人： Mitsuo Saeki , Hidetoshi Yano , Hidekiyo Ozawa , Seiya Kitagawa , Toshiyuki Matsuyama , Takashi Matsumoto , Kyuichi Takimoto , Yoshiaki Sano
IPC分类号： H02M3/155 , G05F1/40 , H02M1/00 , H02M1/36 , H02M3/156
CPC分类号： H02M1/36 , H02M3/156 , H02M2001/008
摘要： A direct-current to direct-current conversion (DC/DC) apparatus includes a control circuit having an error amplifier for voltage control, basing the conversion on a pulse width modulation control using an output of the error amplifier. The error amplifier inputs a voltage signal corresponding to an output voltage of a DC/DC result and a plurality of reference voltage signals. The DC/DC apparatus also includes a soft start capacitor to provide one of the plurality of reference voltage signals. The error amplifier amplifies a difference between the voltage signal corresponding to the output voltage of a DC/DC result and a voltage signal of a lower potential among the plurality of reference voltage signals and carries out the pulse width modulation control. Furthermore, the control circuit includes a circuit for discharging charges corresponding to the output voltage of the DC/DC result when a power supply to the control circuit is turned off.
摘要翻译：直流到直流转换（DC / DC）装置包括具有用于电压控制的误差放大器的控制电路，利用误差放大器的输出根据脉宽调制控制的转换。误差放大器输入对应于DC / DC结果和多个参考电压信号的输出电压的电压信号。 DC / DC装置还包括软启动电容器，以提供多个参考电压信号中的一个。误差放大器放大对应于DC / DC结果的输出电压的电压信号与多个参考电压信号中较低电位的电压信号之间的差值，并执行脉宽调制控制。此外，当控制电路的电源被断开时，控制电路包括用于放电对应于DC / DC结果的输出电压的电荷的电路。

7. 发明授权

US6147477A DC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereon 失效
公开(公告)号：US6147477A
公开(公告)日：2000-11-14
申请号：US884082
申请日：1997-06-27
申请人： Mitsuo Saeki , Hidetoshi Yano , Hidekiyo Ozawa , Seiya Kitagawa , Toshiyuki Matsuyama , Takashi Matsumoto , Kyuichi Takimoto , Yoshiaki Sano
发明人： Mitsuo Saeki , Hidetoshi Yano , Hidekiyo Ozawa , Seiya Kitagawa , Toshiyuki Matsuyama , Takashi Matsumoto , Kyuichi Takimoto , Yoshiaki Sano
IPC分类号： H02M3/155 , G05F1/40 , H02M1/00 , H02M1/36 , H02M3/156
CPC分类号： H02M1/36 , H02M3/156 , H02M2001/008
摘要： A direct-current to direct-current conversion (DC/DC) apparatus includes a control circuit having an error amplifier for voltage control and controlling a direct-current to direct-current conversion based on a pulse width modulation control using an output of the error amplifier. The error amplifier inputs a voltage signal corresponding to an output voltage of a DC/DC result and a plurality of reference voltage signals. The DC/DC apparatus also includes a soft start capacitor to provide one of the plurality of reference voltage signals. The error amplifier amplifies a difference between the voltage signal corresponding to the output voltage of a DC/DC result and a voltage signal of a lower potential among the plurality of reference voltage signals and, based on the amplified output, carries out the pulse width modulation control. Furthermore, the control circuit includes a circuit for discharging charges corresponding to the output voltage of the DC/DC result when a power supply to the control circuit is turned off. By the constitution, it is possible to easily realize power turn-on/turn-off sequence controls without requiring any special logic circuit, and thus to control rise/fall characteristics of the output voltage without depending on the load.

8. 发明授权

US07098639B2 DC-DC converter and method for controlling DC-DC converter 有权
标题翻译： DC-DC转换器及DC-DC转换器控制方法
公开(公告)号：US07098639B2
公开(公告)日：2006-08-29
申请号：US10716401
申请日：2003-11-20
申请人： Masahiro Natsume , Kyuichi Takimoto , Hidekiyo Ozawa
发明人： Masahiro Natsume , Kyuichi Takimoto , Hidekiyo Ozawa
IPC分类号： G05F1/56
CPC分类号： H03K17/063 , H02M3/1588 , H03K17/6871 , H03K17/6872 , Y02B70/1466
摘要： A method for controlling a DC-DC converter that achieves high conversion efficiency without using a linear regulator circuit. The DC-DC converter includes a main switching transistor, a first capacitor, a second capacitor, and a diode that is series-connected to the first capacitor. The series-connected diode and the first capacitor are connected between the source and drain of the main switching transistor. The second capacitor is connected in parallel to the first capacitor or disconnected from the first capacitor in synchronism with activation and inactivation of the main switching transistor to generate gate voltage for driving the main switching transistor.
摘要翻译：一种用于控制在不使用线性调节器电路的情况下实现高转换效率的DC-DC转换器的方法。 DC-DC转换器包括主开关晶体管，第一电容器，第二电容器和串联连接到第一电容器的二极管。串联二极管和第一电容器连接在主开关晶体管的源极和漏极之间。第二电容器与第一电容器并联连接或与主开关晶体管的激活和失活同步地与第一电容器断开以产生用于驱动主开关晶体管的栅极电压。

9. 发明授权

US07045990B2 Portable device having a charging circuit and semiconductor device for use in the charging circuit of the same 有权
标题翻译：具有充电电路的便携式装置和用于该充电电路的半导体装置
公开(公告)号：US07045990B2
公开(公告)日：2006-05-16
申请号：US10665406
申请日：2003-09-22
申请人： Kyuichi Takimoto , Hidekiyo Ozawa
发明人： Kyuichi Takimoto , Hidekiyo Ozawa
IPC分类号： H01M10/44
CPC分类号： H02J7/022 , H02J7/0031
摘要： A portable device for preventing overcharging of a secondary battery resulting from contact failure of a voltage detection terminal. The portable device includes a charging circuit for charging the secondary battery when a battery pack, which includes the secondary battery, is connected to the portable device. The charging circuit includes a charging terminal, which is used to supply the secondary battery with charging current, and a voltage detection terminal, which is used to detect voltage of the secondary battery. The charging circuit stops charging the secondary battery when voltage abnormality is detected at the voltage detection terminal.
摘要翻译：一种用于防止由电压检测端子的接触故障引起的二次电池的过充电的便携式装置。便携式装置包括充电电路，用于在包括二次电池的电池组连接到便携式装置时对二次电池进行充电。充电电路包括用于向二次电池供给充电电流的充电端子和用于检测二次电池的电压的电压检测端子。当在电压检测端检测到电压异常时，充电电路对二次电池进行充电。

10. 发明授权

US06194875B1 Controller for DC-DC converter 失效
标题翻译： DC-DC转换器控制器
公开(公告)号：US06194875B1
公开(公告)日：2001-02-27
申请号：US09414432
申请日：1999-10-07
申请人： Kyuichi Takimoto , Toshiyuki Matsuyama , Hidekiyo Ozawa , Seiya Kitagawa
发明人： Kyuichi Takimoto , Toshiyuki Matsuyama , Hidekiyo Ozawa , Seiya Kitagawa
IPC分类号： H02J704
CPC分类号： H02M3/156 , H02J7/0052 , H02J2007/0059
摘要： A DC—DC converter generates a system output current and a battery charging current. The converter has an output transistor connected between an AC adapter, which provides a supply current, and a terminal at which the battery charging current is provided. A control circuit generates a duty control signal used to activate and deactivate the output transistor in order to adjust the battery charging current. The control circuit includes a voltage detection circuit that compares a DC power supply voltage of the AC adapter with a first reference voltage and generates a differential voltage signal from the comparison result. A PWM comparison circuit is connected to the voltage detection circuit and compares the differential voltage signal with a triangular wave signal to generate the duty control signal which has a duty ratio corresponding to the comparison result.
摘要翻译： DC-DC转换器产生系统输出电流和电池充电电流。转换器具有连接在提供电源电流的AC适配器之间的输出晶体管和提供电池充电电流的端子。控制电路产生用于激活和去激活输出晶体管的占空比控制信号，以便调节电池充电电流。控制电路包括电压检测电路，其将AC适配器的DC电源电压与第一参考电压进行比较，并根据比较结果生成差分电压信号。将PWM比较电路连接到电压检测电路，并将差分电压信号与三角波信号进行比较，以产生占空比对应于比较结果的占空比。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式