Method of driving a piezoelectric transformer and power source apparatus using the same
    3.
    发明授权
    Method of driving a piezoelectric transformer and power source apparatus using the same 失效
    驱动压电变压器的方法及使用其的电源装置

    公开(公告)号:US06720705B2

    公开(公告)日:2004-04-13

    申请号:US09930184

    申请日:2001-08-16

    IPC分类号: H01L4106

    摘要: The invention provides a method of driving a piezoelectric transformer and a power source apparatus using the same. For a circuit for driving a piezoelectric transformer which steps up a voltage input from a primary electrode by a piezoelectric effect to output the stepped up voltage from a secondary electrode, the gradient (linear differential value) of a step-up ratio at the piezoelectric transformer is detected, and the detected gradient is used to control the driving frequency for the piezoelectric transformer so that the driving frequency approaches to the resonant frequency of the piezoelectric transformer.

    摘要翻译: 本发明提供驱动压电变压器的方法和使用其的电源装置。 对于用于驱动压电变压器的电路,其通过压电效应升高从初级电极输入的电压,以从次级电​​极输出升压电压,压电变压器的升压比的梯度(线性微分值) 并且使用检测到的梯度来控制压电变压器的驱动频率,使得驱动频率接近压电变压器的谐振频率。

    Blue phosphor, light-emitting device, and plasma display panel
    9.
    发明授权
    Blue phosphor, light-emitting device, and plasma display panel 有权
    蓝色荧光体,发光装置和等离子体显示面板

    公开(公告)号:US08366965B2

    公开(公告)日:2013-02-05

    申请号:US13180171

    申请日:2011-07-11

    IPC分类号: C09K11/68

    摘要: The present invention provides a blue phosphor that exhibits high luminance and shows less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor represented by the general formula aBaO.bSrO.(1−a−b)EuO.cMgO.dAlO3/2.eWO3, where 0.70≦a≦0.95, 0≦b≦0.15, 0.95≦c≦1.15, 9.00≦d≦11.00, 0.001≦e≦0.100, and a+b≦0.97 are satisfied. In this blue phosphor, two peaks whose tops are located in a range of diffraction angle 2θ=13.0 to 13.6 degrees are present in an X-ray diffraction pattern obtained by measurement on the blue phosphor using an X-ray with a wavelength of 0.774 Å.

    摘要翻译: 本发明提供了一种在发光装置的驱动期间显示出高亮度并且显示出较少亮度劣化的蓝色荧光体。 本发明是由通式aBaO.bSrO(1-a-b)EuO.cMgO.dAlO3 / 2eWO3表示的蓝色荧光体,其中0.70和nlE; a≦̸ 0.95,0和nlE; b≦̸ 0.15,0.95& c≦̸ 1.15,9.00和nlE; d≦̸ 11.00,0.001和nlE; e≦̸ 0.100和a + b≦̸ 0.97。 在这种蓝色荧光体中,其顶部位于衍射角2的范围内的两个峰位于13.0至13.6度的X射线衍射图中,其通过使用波长为0.774的X射线在蓝色荧光体上测量而获得 一个。

    Method of manufacturing blue silicate phosphor, and blue silicate phosphor and light-emitting device
    10.
    发明授权
    Method of manufacturing blue silicate phosphor, and blue silicate phosphor and light-emitting device 有权
    制造蓝色硅酸盐荧光体的方法,以及蓝色硅酸盐荧光体和发光装置

    公开(公告)号:US08142684B2

    公开(公告)日:2012-03-27

    申请号:US12299868

    申请日:2007-05-16

    IPC分类号: C09K11/08

    摘要: The present invention provides a method of manufacturing a blue silicate phosphor having high luminance and a chromaticity y comparable to or lower than that of BAM:Eu. The present invention is a method of manufacturing a blue silicate phosphor represented by the general formula aAO.bEuO.(Mg1−w,Znw)O.cSiO2.dCaCl2, where A is at least one selected from Sr, Ba and Ca, and 2.970≦a≦3.500, 0.006≦b≦0.030, 1.900≦c≦2.100, 0≦d≦0.05, and 0≦w≦1 are satisfied. In this manufacturing method, heat treatment is carried out in a gas atmosphere having an oxygen partial pressure of 1×10−15.5 atm to 1×10−10 atm at a temperature of 1200° C. to 1400° C.

    摘要翻译: 本发明提供一种制造与BAM:Eu相当或更低的亮度和色度y的蓝色硅酸盐荧光体的方法。 本发明是制造由通式aAO.bEuO(Mg1-w,Znw)O.cSiO2.dCaCl2表示的蓝色硅酸盐荧光体的方法,其中A为选自Sr,Ba和Ca中的至少一种,2.970 ≦̸ a≦̸ 3.500,0.006≦̸ b≦̸ 0.030,1.900≦̸ c≦̸ 2.100,0≦̸ d≦̸ 0.05和0≦̸ w≦̸ 1。 在该制造方法中,在1200℃〜1400℃的温度下,在氧分压为1×10-15.5atm〜1×10-10atm的气氛中进行热处理。