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    • 3. 发明申请
    • Charging Device
    • 充电装置
    • US20090051330A1
    • 2009-02-26
    • US11887231
    • 2006-03-29
    • Hisanori HoshikawaYouichi TamegaiIsao Yamamoto
    • Hisanori HoshikawaYouichi TamegaiIsao Yamamoto
    • H02J7/00
    • G03B15/05G03B2215/05H02J7/0065H02M1/08H02M3/33507H05B41/32H05B41/34
    • There is provided a charging device capable of improving charging efficiency and reducing power consumption, thereby increasing a battery service life. The charging device charges a main capacitor (2) by rectifying output voltage boosted via a self-excitation DC-DC converter, by using a diode (D). The self-excitation DC-DC converter is configured as follows. When a current value (I1) flowing in a primary side (P) of an oscillation transformer (T) reaches a first predetermined value (IPK1) the excitation period is terminated and energy is transmitted from the primary side (P) to the secondary side (S) of the oscillation transformer (T) so as to execute a charging period for charging the main capacitor (2). The excitation period is resumed with a delay time (t1) after detecting that the current value (I2) flowing into the secondary side (S) of the oscillation transformer (T) is lowered than a second predetermined value (Ith2).
    • 提供一种能够提高充电效率并降低功耗的充电装置,从而提高电池的使用寿命。 充电装置通过使用二极管(D)整流通过自励DC-DC转换器升压的输出电压来对主电容器(2)充电。 自激式DC-DC转换器配置如下。 当在振荡变压器(T)的初级侧(P)中流动的电流值(I1)达到第一预定值(IPK1)时,激励周期终止,并且能量从初级侧(P)传递到次级侧 (S),以便执行用于对主电容器(2)充电的充电时段。 在检测到流入振荡变压器(T)的次级侧(S)的电流值(I2)低于第二预定值(Ith2)之后,以延迟时间(t1)恢复激励周期。
    • 4. 发明授权
    • Charging device
    • 充电装置
    • US07812571B2
    • 2010-10-12
    • US11887231
    • 2006-03-29
    • Hisanori HoshikawaYouichi TamegaiIsao Yamamoto
    • Hisanori HoshikawaYouichi TamegaiIsao Yamamoto
    • H02J7/00
    • G03B15/05G03B2215/05H02J7/0065H02M1/08H02M3/33507H05B41/32H05B41/34
    • There is provided a charging device capable of improving charging efficiency and reducing power consumption, thereby increasing a battery service life. The charging device charges a main capacitor (2) by rectifying output voltage boosted via a self-excitation DC-DC converter, by using a diode (D). The self-excitation DC-DC converter is configured as follows. When a current value (I1) flowing in a primary side (P) of an oscillation transformer (T) reaches a first predetermined value (IPK1) the excitation period is terminated and energy is transmitted from the primary side (P) to the secondary side (S) of the oscillation transformer (T) so as to execute a charging period for charging the main capacitor (2). The excitation period is resumed with a delay time (t1) after detecting that the current value (I2) flowing into the secondary side (S) of the oscillation transformer (T) is lowered than a second predetermined value (Ith2).
    • 提供一种能够提高充电效率并降低功耗的充电装置,从而提高电池的使用寿命。 充电装置通过使用二极管(D)整流通过自励DC-DC转换器升压的输出电压来对主电容器(2)充电。 自激式DC-DC转换器配置如下。 当在振荡变压器(T)的初级侧(P)中流动的电流值(I1)达到第一预定值(IPK1)时,激励周期终止,并且能量从初级侧(P)传递到次级侧 (S),以便执行用于对主电容器(2)充电的充电时段。 在检测到流入振荡变压器(T)的次级侧(S)的电流值(I2)低于第二预定值(Ith2)之后,以延迟时间(t1)恢复激励周期。
    • 6. 发明授权
    • Boost controller capable of step-up ratio control
    • 升压控制器能够进行升压比控制
    • US07307385B2
    • 2007-12-11
    • US11083516
    • 2005-03-18
    • Isao YamamotoKyoichiro ArakiNoboru Kagemoto
    • Isao YamamotoKyoichiro ArakiNoboru Kagemoto
    • H05B37/02
    • H05B33/0884H05B33/0815
    • A charge pump circuit boosts a voltage of a battery so as to generate a drive voltage for an LED. A constant current circuit generates a constant current to feed through the LED. A monitoring circuit monitors a cathode potential of the LED, i.e., a voltage across the constant current circuit. A control circuit receives a result of monitoring from the monitoring circuit 110 and increases a step-up ratio of the charge pump circuit when the voltage across the constant current circuit drops below a minimum voltage that guarantees a constant current. The control circuit sets an externally requested constant current value in the constant current circuit. When a change from a large current to a small current is requested, the control circuit returns the step-up ratio of the charge pump circuit to 1.0.
    • 电荷泵电路提高电池的电压,以产生用于LED的驱动电压。 恒流电路产生恒流以通过LED馈电。 监视电路监视LED的阴极电位,即恒定电流电路两端的电压。 控制电路从监视电路110接收监视结果,并且当恒定电流电路两端的电压下降到保证恒定电流的最小电压时,增加电荷泵电路的升压比。 控制电路在恒流电路中设定外部请求的恒定电流值。 当要求从大电流变化到小电流时,控制电路将电荷泵电路的升压比恢复到1.0。
    • 9. 发明申请
    • DC/DC CONVERTER CONTROL CIRCUIT, AND POWER SUPPLY APPARATUS, LIGHT EMITTING APPARATUS AND ELECTRONIC DEVICE USING THE SAME
    • DC / DC转换器控制电路和电源装置,发光装置和使用该装置的电子装置
    • US20110006694A9
    • 2011-01-13
    • US11951408
    • 2007-12-06
    • Yoichi TamegaiIsao YamamotoKyoichiro Araki
    • Yoichi TamegaiIsao YamamotoKyoichiro Araki
    • H05B41/36G05F1/00
    • H02M3/33507H02M1/32
    • A control circuit is provided for a separately excited DC/DC converter which directly monitors output voltage to detect a short-circuit state, and performs overcurrent protection. A switching controller of the control circuit controls a switching operation of a switching transistor of the separately excited DC/DC converter. A voltage comparator compares the output voltage and a threshold voltage, to detect the short-circuit state. After a predetermined start-up time has elapsed after beginning start-up of the separately excited DC/DC converter, when the voltage comparator detects the short-circuit state, the switching controller halts the switching operation of the switching transistor, and makes detection of the short-circuit state by the voltage comparator non-operative before elapse of the start-up time. After detecting the short-circuit state and halting the switching operation of the switching transistor for a predetermined halt time, the switching controller begins start-up of the separately excited DC/DC converter once again.
    • 为单独激励的DC / DC转换器提供控制电路,其直接监视输出电压以检测短路状态,并执行过电流保护。 控制电路的开关控制器控制单独激励的DC / DC转换器的开关晶体管的开关操作。 电压比较器比较输出电压和阈值电压,以检测短路状态。 在单独激励的DC / DC转换器开始启动之后经过预定的启动时间之后,当电压比较器检测到短路状态时,开关控制器停止开关晶体管的开关操作,并且检测 电压比较器的短路状态在启动时间过去之前不起作用。 在检测到短路状态并停止开关晶体管的切换操作达预定的停止时间之后,开关控制器再次开始启动单独激励的DC / DC转换器。
    • 10. 发明授权
    • Driving apparatus of mover
    • 动力驱动装置
    • US07868744B2
    • 2011-01-11
    • US12138609
    • 2008-06-13
    • Kyoichiro ArakiIsao Yamamoto
    • Kyoichiro ArakiIsao Yamamoto
    • H04B3/36G08B21/00
    • G06F3/016
    • A driving apparatus drives a mover arranged for feedback of a touch panel. A reference voltage generation unit generates a reference voltage having a signal waveform to be applied to the mover. A pulse modulator generates a PWM signal of which duty ratio is controlled by feedback so that a feedback voltage corresponding to a drive voltage to be applied to the mover approaches the reference voltage. A switching element of the DC/DC converter is turned ON/OFF by a PWM signal from the pulse modulator, so that an output voltage of the DC/DC converter is controlled, and a drive voltage corresponding to the output voltage is applied to the mover.
    • 驾驶装置驱动布置成用于触摸面板的反馈的移动器。 参考电压产生单元产生具有要施加到移动器的信号波形的参考电压。 脉冲调制器产生PWM信号,其中占空比由反馈控制,使得与施加到移动器的驱动电压相对应的反馈电压接近参考电压。 通过来自脉冲调制器的PWM信号使DC / DC转换器的开关元件接通/断开,从而控制DC / DC转换器的输出电压,并将对应于输出电压的驱动电压施加到 移动者