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    • 1. 发明授权
    • Multi-mode adjustable piezoelectric transformer
    • 多模可调压电变压器
    • US5504384A
    • 1996-04-02
    • US343352
    • 1994-11-21
    • Yu-Lin LeeSyh-Yuh ChengYun-Tien ChenShu-Fen LiaoWen-Chin Yeh
    • Yu-Lin LeeSyh-Yuh ChengYun-Tien ChenShu-Fen LiaoWen-Chin Yeh
    • H01L41/107H01L41/047H01L41/08
    • H01L41/107
    • A type of piezoelectric transformer (PT) which vibrates in length extensional mode is provided. The piezoelectric transformer (PT) has a piezoelectric substrate which has a first dimension, a second dimension and a third dimension with the first dimension being longest and the third dimension being shortest. The substrate has two polarization directions parallel to the first dimension near two terminals of the first dimension and at least two opposite polarization directions on a central portion of the substrate transversely to the first dimension. The substrate further has at least two electrodes on a portion horizontal to the first dimension. Comparing with traditional piezoelectric transformers, the new one can solve the polarization difficulties and reduce audio noise output without sacrificing the electrical properties or even have better voltage transformation characteristics.
    • 提供了一种在长度延伸模式下振动的压电变压器(PT)。 压电变压器(PT)具有压电基板,其具有第一尺寸,第二尺寸和第三尺寸,第一尺寸最长,第三尺寸最短。 衬底具有与第一尺寸的两个端子附近的第一尺寸平行的两个偏振方向和横向于第一尺寸的衬底的中心部分上的至少两个相反的偏振方向。 基板还在与第一尺寸水平的部分上具有至少两个电极。 与传统的压电变压器相比,新的可以解决极化困难,降低音频噪声输出,而不牺牲电气特性,甚至具有更好的电压转换特性。
    • 2. 发明授权
    • Piezoelectric composite receiver
    • 压电复合接收机
    • US5406161A
    • 1995-04-11
    • US248872
    • 1994-05-24
    • Yu-Lin LeeSyh-Yuh Cheng
    • Yu-Lin LeeSyh-Yuh Cheng
    • H04M1/03H04R17/00H01L41/08
    • H04R17/00H04M1/03
    • A piezoelectric composite receiver for use in telephones comprising a front cover, a rear cover, and a transducer plate, which is provided with an piezoelectric layer so as to provide the function of an electroacoustic transducer. Each of the front cover and the rear cover has an elliptically-shaped protrusion for clamping the transducer plate therebetween. The elliptically-shaped protrusions allows the transducer plate to freely vibrate in the frequency range of interest (i.e., between 300 Hz and 3,400 Hz), while the sound in the high frequency region (above 3,400 Hz) is effectively suppressed. The front cover and the rear cover are made of a plastic material using an injection molding process, and either the front cover or the rear cover, or both, are provided with an ultrasonic welding loop, which allows the receiver to be affixed using an ultrasound welding device. An induction coil can be imbedded in the outer periphery or an upper portion of the front cover which can be coupled to a hearing aid so as to allow an hearing impaired to utilize a telephone which utilizes the piezoelectric composite receiver.
    • 一种用于电话的压电复合接收器,包括前盖,后盖和换能器板,其设有压电层以提供电声换能器的功能。 前盖和后盖中的每一个具有椭圆形突起,用于将换能器板夹在其间。 椭圆形突起允许换能器板在感兴趣的频率范围内(即,在300Hz和3,400Hz之间)自由振动,同时高频区域(高于3,400Hz)的声音被有效地抑制。 前盖和后盖由塑料材料制成,使用注射成型工艺,前盖或后盖或两者均设置有超声波焊接回路,其允许接收器使用超声波 焊接装置。 感应线圈可以嵌入在前盖的外周或上部,其可以耦合到助听器,以便听力障碍者利用利用压电复合接收器的电话。
    • 9. 发明授权
    • Hybrid constant current LED lamp
    • 混合恒流LED灯
    • US09241378B2
    • 2016-01-19
    • US14205782
    • 2014-03-12
    • Yu-Lin Lee
    • Yu-Lin LeeKuo- Chung Huang
    • H05B37/02H05B33/08
    • H05B33/0815H05B37/02
    • The present invention relates to a hybrid constant current LED lamp. The LED lamp includes a rectifier unit, a filter circuit, a switching mode power supply, at least one main LED and a subsidiary LED. The main LED is electrically connected in series to the output terminal of the rectifier unit and the input port of the primary-side circuit of the switching mode power supply. The subsidiary LED is connected to the secondary-side circuit. The invention not only provides circuit architecture capable of providing a constant current, but also improves the power efficiency of the lamp.
    • 本发明涉及混合型恒流LED灯。 LED灯包括整流器单元,滤波器电路,开关模式电源,至少一个主LED和辅助LED。 主LED与整流器单元的输出端子和开关模式电源的初级侧电路的输入端口串联电连接。 辅助LED连接到次级侧电路。 本发明不仅提供能够提供恒定电流的电路架构,而且还提高了灯的功率效率。