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    • 3. 发明授权
    • Ultrasonic wave applying apparatus
    • 超声波施加装置
    • US06183426B2
    • 2001-02-06
    • US09147391
    • 1998-12-15
    • Shosuke AkisadaHiromitu InoueHideaki AbeKozo KawaiMotoharu MutoMasayuki HayashiShinji NishimuraItaru Saida
    • Shosuke AkisadaHiromitu InoueHideaki AbeKozo KawaiMotoharu MutoMasayuki HayashiShinji NishimuraItaru Saida
    • A61H100
    • A61B5/6843A61B8/546A61B2017/00123A61H23/0245A61H2201/0176A61N7/00
    • An ultrasonic wave applying apparatus which is safe and convenient for use. The apparatus includes an hand-held applicator having a vibration element which is, in use, contact with a skin of a user to apply ultrasonic waves to the skin, a power source providing a DC voltage, an oscillator circuit which is energized by the DC voltage from the power source to generate an oscillating output for driving the vibration element, and a load detecting circuit which monitors whether the vibration element is loaded such as by contact with the skin and provides a load detection signal when the vibration element is so loaded. In addition, a motion detecting circuit is provided to monitor whether the vibration element is moving and give a motion detection signal when the vibration element is so moving. A control circuit is connected to the load detecting circuit and the motion detecting circuit for controlling the driving circuit to reduce the oscillating output being fed to the ultrasonic vibration element when the load detection signal is not received within a predetermined first time period or when the motion detection signal is not continuous over a critical time duration within a predetermined second time period even in the presence of the load detection signal being detected within the first time period.
    • 一种安全方便使用的超声波施加装置。 该装置包括手持式施加器,其具有在使用中与使用者的皮肤接触以向皮肤施加超声波的振动元件,提供DC电压的电源,由DC通电的振荡器电路 电压产生用于驱动振动元件的振荡输出;以及负载检测电路,其通过与皮肤接触来监测振动元件是否被加载,并且当振动元件被装载时提供负载检测信号。 此外,提供运动检测电路来监视振动元件是否正在移动,并且当振动元件如此移动时给出运动检测信号。 控制电路连接到负载检测电路和运动检测电路,用于控制驱动电路,以便在预定的第一时间段内没有接收到负载检测信号时,或当运动 即使在第一时间段内检测到负载检测信号的情况下,检测信号在预定的第二时间段内的临界持续时间内也不连续。
    • 5. 发明授权
    • Inverter power supply with single discharge path
    • 变频器电源具有单路放电路径
    • US5706183A
    • 1998-01-06
    • US494792
    • 1995-06-26
    • Hideaki AbeShosuke AkisadaTakio MaekawaHideki TamuraSatoru Inakagata
    • Hideaki AbeShosuke AkisadaTakio MaekawaHideki TamuraSatoru Inakagata
    • H02M3/338H02M3/335H02M3/24H02M7/537
    • H02M3/338Y02B70/1433
    • An inverter power supply having a DC source, a transformer having a primary winding, a secondary winding, and a feedback winding, an L-C resonant circuit of a capacitor and the primary winding, and a self-excited oscillator. The oscillator includes an L-C resonant circuit and an FET connected in series with the primary winding across the DC source to generate a high frequency voltage across the primary winding, a feedback voltage across the feedback winding and a resulting output AC voltage across the secondary winding. A biasing capacitor is connected in parallel with a series combination of the L-C resonant circuit and the FET across the DC source to be charged thereby. The biasing capacitor is also connected in series with the feedback winding to provide an offset voltage which is additive to the feedback winding to give a bias voltage applied to a gate of the FET so as to alternately turn on and off the FET for driving the self-excited oscillator. A current sensor is provided to sense a current flowing through FET and gives a first level signal indicative of the sensed current being fed to the resonant circuit. Extending across the biasing capacitor is a single discharge path which does not go through the FET. A switching transistor is inserted in the single discharge path and is caused to turn on, upon the first level signal exceeding a threshold level, to discharge the biasing capacitor to a level for maintaining the offset voltage at a constant level during continued oscillation of the L-C resonant circuit.
    • 具有DC源,具有初级绕组的变压器,次级绕组和反馈绕组,电容器的L-C谐振电路和初级绕组的逆变器电源和自激振荡器。 振荡器包括L-C谐振电路和与跨越DC源的初级绕组串联的FET,以在初级绕组两端产生高频电压,反馈绕组两端的反馈电压以及次级绕组两端产生的输出交流电压。 偏置电容器与直流电源的L-C谐振电路和FET的串联组合并联连接,由此进行充电。 偏置电容器也与反馈绕组串联连接以提供偏置电压,该偏移电压被加到反馈绕组上,以给出施加到FET的栅极的偏置电压,以交替地导通和关断用于驱动自身的FET 激发振荡器。 提供电流传感器以感测流过FET的电流,并且给出指示感测的电流被馈送到谐振电路的第一电平信号。 横跨偏置电容器的延伸是不通过FET的单个放电路径。 开关晶体管被插入单个放电路径中,并且在第一电平信号超过阈值电平时导通,以将该偏置电容器放电至在液晶连续振荡期间将偏移电压保持在恒定电平的电平 谐振电路。