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    • 1. 发明申请
    • Buck-boost converter
    • 降压 - 升压转换器
    • US20070075687A1
    • 2007-04-05
    • US11527441
    • 2006-09-27
    • Takuya IshiiMasato YoshidaMikio MotomoriJun-ichiro Hara
    • Takuya IshiiMasato YoshidaMikio MotomoriJun-ichiro Hara
    • G05F1/613
    • H02M3/1582
    • A buck-boost converter includes: a buck converter section including a first switch, a first rectifier, and an inductor; a boost converter section sharing the inductor and including a second switch, a second rectifier, and a smoothing circuit; and a control circuit for generating and outputting a first driving signal for opening and closing the first switch and a second driving signal for opening and closing the second switch. The control circuit includes:an error amplifier circuit for amplifying an error between an output value from the smoothing circuit and a predetermined voltage value to thereby generate and output an error signal; an oscillator circuit for generating and outputting a triangular wave signal having a predetermined cycle; a compensatory signal generation circuit for generating and outputting a compensatory signal, which oscillates in a cycle that is at least twice the cycle of the triangular wave signal; a control signal generation circuit for adding together the error signal and the compensatory signal to thereby generate and output a control signal; and a comparator circuit for comparing the triangular wave signal with the control signal to generate and output the first or second driving signal.
    • 降压 - 升压转换器包括:降压转换器部分,包括第一开关,第一整流器和电感器; 共享电感器并包括第二开关,第二整流器和平滑电路的升压转换器部分; 以及用于产生和输出用于打开和关闭第一开关的第一驱动信号的控制电路和用于打开和关闭第二开关的第二驱动信号。 控制电路包括:误差放大器电路,用于放大来自平滑电路的输出值与预定电压值之间的误差,从而产生并输出误差信号; 用于产生并输出具有预定周期的三角波信号的振荡器电路; 补偿信号生成电路,用于产生和输出补偿信号,该补偿信号以至少是三角波信号周期的两倍的周期振荡; 控制信号生成电路,用于将误差信号和补偿信号相加,从而生成并输出控制信号; 以及用于将三角波信号与控制信号进行比较以产生并输出第一或第二驱动信号的比较器电路。
    • 2. 发明授权
    • Buck-boost converter
    • 降压 - 升压转换器
    • US07268525B2
    • 2007-09-11
    • US11527441
    • 2006-09-27
    • Takuya IshiiMasato YoshidaMikio MotomoriJun-ichiro Hara
    • Takuya IshiiMasato YoshidaMikio MotomoriJun-ichiro Hara
    • G05F1/575
    • H02M3/1582
    • A buck-boost converter includes: a buck converter section including a first switch, a first rectifier, and an inductor; a boost converter section sharing the inductor and including a second switch, a second rectifier, and a smoothing circuit; and a control circuit for generating and outputting a first driving signal for opening and closing the first switch and a second driving signal for opening and closing the second switch. The control circuit includes: an error amplifier circuit for amplifying an error between an output value from the smoothing circuit and a predetermined voltage value to thereby generate and output an error signal; an oscillator circuit for generating and outputting a triangular wave signal having a predetermined cycle; a compensatory signal generation circuit for generating and outputting a compensatory signal, which oscillates in a cycle that is at least twice the cycle of the triangular wave signal; a control signal generation circuit for adding together the error signal and the compensatory signal to thereby generate and output a control signal; and a comparator circuit for comparing the triangular wave signal with the control signal to generate and output the first or second driving signal.
    • 降压 - 升压转换器包括:降压转换器部分,包括第一开关,第一整流器和电感器; 共享电感器并包括第二开关,第二整流器和平滑电路的升压转换器部分; 以及用于产生和输出用于打开和关闭第一开关的第一驱动信号的控制电路和用于打开和关闭第二开关的第二驱动信号。 控制电路包括:误差放大器电路,用于放大来自平滑电路的输出值与预定电压值之间的误差,从而产生并输出误差信号; 用于产生并输出具有预定周期的三角波信号的振荡器电路; 补偿信号生成电路,用于产生和输出补偿信号,该补偿信号以至少是三角波信号周期的两倍的周期振荡; 控制信号生成电路,用于将误差信号和补偿信号相加,从而生成并输出控制信号; 以及用于将三角波信号与控制信号进行比较以产生并输出第一或第二驱动信号的比较器电路。
    • 5. 发明申请
    • Multi-output power supply and electronic device using them
    • 多输出电源和使用它们的电子设备
    • US20060044724A1
    • 2006-03-02
    • US11153230
    • 2005-06-15
    • Takuya IshiiTakashi RyuMikio MotomoriHirohisa TanabeMasato YoshidaKazuhito KimuraTomoya Shigemi
    • Takuya IshiiTakashi RyuMikio MotomoriHirohisa TanabeMasato YoshidaKazuhito KimuraTomoya Shigemi
    • H02H3/20
    • H02M3/158H02M2001/008
    • For controlling DC-DC converters conforming to voltage mode control system and current mode control system, in multi-output power supply, first converter section 2 is configured that first detection circuit 31 outputs first control signal, that first oscillation circuit 32 outputs first triangular wave signal and clock signal, and that first pulse-width modulation circuit 33 drives first switch by comparing first control signal with first triangular wave signal. Second converter section 4 is configured that second detection circuit 34 outputs second control signal, that second oscillation circuit 35 outputs second triangular wave signal synchronized with clock signal, that current detection circuit 36 outputs current signal of second inductor, and that second pulse-width modulation circuit 37 turns ON second switch in synchronization with clock signal and turns OFF second switch by calculating or comparing second control signal, the second triangular wave signal and current signal.
    • 为了控制符合电压模式控制系统和电流模式控制系统的DC-DC转换器,在多输出电源中,第一转换器部分2被配置为:第一检测电路31输出第一控制信号,第一振荡电路32输出第一三角波 信号和时钟信号,并且第一脉冲宽度调制电路33通过将第一控制信号与第一三角波信号进行比较来驱动第一开关。 第二转换器部分4被配置为第二检测电路34输出第二控制信号,第二振荡电路35输出与时钟信号同步的第二三角波信号,电流检测电路36输出第二电感器的电流信号,第二脉冲宽度调制 电路37与时钟信号同步地接通第二开关,并通过计算或比较第二控制信号,第二三角波信号和电流信号来关断第二开关。
    • 10. 发明授权
    • Navigation apparatus
    • 导航仪
    • US08174499B2
    • 2012-05-08
    • US12588228
    • 2009-10-08
    • Masato Yoshida
    • Masato Yoshida
    • G09G5/08
    • G01C21/3664G06F3/016G06F3/0338G06F3/03548
    • A navigation apparatus is disclosed. The navigation apparatus includes a remote control device having a manipulation member and a force generator. The manipulation member is movable in response to user's manipulation and enables the user to point to a position on a display screen of the display device remotely. The force generator applies a force to the manipulation member against the manipulation of the manipulation member. The navigation apparatus sets content of the force based on an arrangement of an item image on the display screen, so that the force causes the pointed position to be attracted toward a fixed item image when the pointed position is located around the fixed item image, while the first force does not cause the pointed position to be attracted toward an on-map item image, which is superimposed on a map image.
    • 公开了一种导航装置。 导航装置包括具有操纵构件和力发生器的遥控装置。 操作构件可以响应于用户的操纵而移动,并且使用户能够远程地指向显示装置的显示屏幕上的位置。 力产生器对操作构件施加力以抵抗操纵构件的操纵。 导航装置基于项目图像在显示画面上的布置来设定力的内容,使得当尖锐位置位于固定项目图像周围时,该力使指向的位置被吸引到固定项目图像,同时 第一力不会导致指向位置被吸引到叠加在地图图像上的地图上项目图像。