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1. 发明授权

US06791239B2 Piezoelectric transformation driving apparatus 失效
标题翻译：压电变换驱动装置
公开(公告)号：US06791239B2
公开(公告)日：2004-09-14
申请号：US10298688
申请日：2002-11-19
申请人： Chin-Wen Chou , Eddie Cheng
发明人： Chin-Wen Chou , Eddie Cheng
IPC分类号： H01L41107
CPC分类号： H05B41/2822 , H01L41/044
摘要： A piezoelectric transformation driving apparatus for driving elements or products to be driven by a high or a low voltage includes a pulse-width modulation (PWM) control unit, a plurality of driving units, a plurality of transformation units, a plurality of piezoelectric units, and a plurality of loads. The PWM control unit outputs signals of the same phase and frequency to drive synchronously the driving units, the transformation units, the piezoelectric units and the loads to operate synchronously.
摘要翻译：用于驱动由高电压或低电压驱动的元件或产品的压电变换驱动装置包括脉冲宽度调制（PWM）控制单元，多个驱动单元，多个变换单元，多个压电单元，和多个负载。 PWM控制单元输出相同相位和相位相同的信号，驱动单元，变换单元，压电单元和负载同步运行。

2. 发明授权

US06348755B1 Method and apparatus for driving piezoelectric transformer 失效
标题翻译：驱动压电变压器的方法和装置
公开(公告)号：US06348755B1
公开(公告)日：2002-02-19
申请号：US09553357
申请日：2000-04-21
申请人： Junichi Shimamura , Mamoru Sakamoto , Kenji Kamitani
发明人： Junichi Shimamura , Mamoru Sakamoto , Kenji Kamitani
IPC分类号： H01L41107
CPC分类号： H01L41/044 , H05B41/2821 , H05B41/3927
摘要： It is an object of the present invention to provide a method and an apparatus for driving a piezoelectric transformer capable of always driving with maximum conversion efficiency regardless of changes in the input voltage level, load and temperature, etc. The method and apparatus for driving a piezoelectric transformer of the present invention generate a time-varying sweep voltage through a sweep circuit at predetermined regular intervals, thereby changing the frequency of a drive signal output from a voltage control oscillator, at this time detect a phase difference between the voltage and current generated on the primary side of the piezoelectric transformer by a phase difference detector, and hold the sweep voltage corresponding to the timing at which a maximum value detector detects the maximum value by a sample-and-hold circuit, thereby controlling the frequency of the drive signal so that the phase difference between the voltage and current on the primary side of the piezoelectric transformer always becomes a maximum value.
摘要翻译：本发明的目的是提供一种用于驱动压电变压器的方法和装置，其能够始终以最大的转换效率驱动，而与输入电压电平，负载和温度等的变化无关。用于驱动本发明的压电变压器以预定的规则间隔通过扫描电路产生时变扫描电压，从而改变从压控振荡器输出的驱动信号的频率，此时检测产生的电压和电流之间的相位差通过相位差检测器在压电变压器的初级侧，并且保持与最大值检测器通过采样保持电路检测到最大值的定时相对应的扫描电压，从而控制驱动信号的频率使得压电电极的初级侧的电压和电流之间的相位差 c变压器总是成为最大值。

3. 发明授权

US06288479B1 Piezoelectric transformer 失效
标题翻译：压电变压器
公开(公告)号：US06288479B1
公开(公告)日：2001-09-11
申请号：US09441961
申请日：1999-11-17
申请人： Yoshiyuki Watanabe
发明人： Yoshiyuki Watanabe
IPC分类号： H01L41107
CPC分类号： H01L41/107
摘要： There is provided a piezoelectric transformer. The piezoelectric transformer includes: a long-plate-shaped piezoelectric member being polarized in a thickness direction and a longitudinal direction; and input electrodes and output electrodes mounted on the piezoelectric member, wherein a thickness ratio LC/LA of the piezoelectric member ranges from 0.01 to 0.06, LC and LA being a thickness and a longitudinal length of the piezoelectric member, respectively. The piezoelectric member consists of either laminated piezoelectric layers or a monolayer. A thickness ratio LC/LA of the piezoelectric member 10 ranges from 0.01 to 0.06, more preferably, 0.02 to 0.05, thereby resulting in an enhanced efficiency, wherein LA and LC refer to a length and a thickness of the piezoelectric member 10, respectively. Further, an electrode length ratio LB/LA of the piezoelectric member ranges from 0.6 to 0.9, more preferably, 0.7 to 0.8, wherein LB represents a length of the input electrodes. The piezoelectric transformer of the present invention exhibits an increased output power and a larger voltage-rise ratio.
摘要翻译：提供了压电变压器。压电变压器包括：长板状压电元件，其在厚度方向和长度方向上极化; 以及安装在压电元件上的输入电极和输出电极，其中压电元件的厚度比LC / LA分别为0.01至0.06，LC和LA分别为压电元件的厚度和纵向长度。压电元件由层压压电层或单层组成。压电元件10的厚度比LC / LA的范围为0.01至0.06，更优选为0.02至0.05，从而提高了效率，其中LA和LC分别表示压电元件10的长度和厚度。此外，压电部件的电极长度比LB / LA为0.6〜0.9，更优选为0.7〜0.8，其中，LB表示输入电极的长度。本发明的压电变压器表现出增加的输出功率和更大的升压比。

4. 发明授权

US06747401B2 Augmenting surface electrode for piezoelectric workpiece 失效
标题翻译：用于压电工件的增强表面电极
公开(公告)号：US06747401B2
公开(公告)日：2004-06-08
申请号：US10064465
申请日：2002-07-17
申请人： Yu-Hsiang Hsu , Wen-Hsin Hsiao , Wen-Jong Wu , Chih-Kung Lee
发明人： Yu-Hsiang Hsu , Wen-Hsin Hsiao , Wen-Jong Wu , Chih-Kung Lee
IPC分类号： H01L41107
CPC分类号： H01L41/107 , H01L41/047 , H01L41/257 , Y10T29/42 , Y10T29/43
摘要： Augmenting surface electrodes for piezoelectric workpieces together with the method for fabrication are disclosed for improving fabrication and operation reliability of the workpieces. A piezoelectric workpiece used for energy conversion between electrical and mechanical forms in a piezoelectric system comprises a body, a number of function electrodes, and at least an augmenting surface electrode. The body of piezoelectricity is used for implementing the energy conversion. The function electrodes are each fixedly attached to the surface of the body, and are connected in the electric circuit for implementing the energy conversion. At least one of the function electrodes has a shape with a contour of at least one acute angle. At least an augmenting surface electrode has a substantially elongated shape fixedly attached to the surface of the body proximate to the acute angle. Together, the augmenting surface electrode and the proximate function electrode thereof constitute a gross electrode that substantially cancels the acute angle when both are connected electrically to the same electric potential. The acute angle is cancelled during the polarization of electric dipoles of the body grain molecules so that the boundary region between different polarization orientation distribution regions can be smoothed. The reliability of the piezoelectric workpiece is improved both during the fabrication and during normal operation of the workpiece.
摘要翻译：公开了用于压电工件的增强表面电极以及制造方法，用于改善工件的制造和操作可靠性。用于压电系统中电和机械形式之间的能量转换的压电工件包括主体，多个功能电极和至少一个增强表面电极。压电体用于实现能量转换。功能电极各自固定在主体的表面上，并连接在电路中以实现能量转换。功能电极中的至少一个具有至少一个锐角的轮廓的形状。至少一个增强表面电极具有固定地附接到靠近锐角的本体的表面的基本上细长的形状。一起，增强表面电极和其附近功能电极构成总电极，当两者都电连接到相同的电位时，该电极基本上抵消了锐角。在体粒分子的电偶极子的极化期间锐角被抵消，使得不同极化取向分布区域之间的边界区域可以平滑化。在制造过程中和工件的正常工作期间，压电工件的可靠性得到改善。

5. 发明授权

US06703762B1 Actuator and driving apparatus thereof 有权
标题翻译：执行机构及其驱动装置
公开(公告)号：US06703762B1
公开(公告)日：2004-03-09
申请号：US09456184
申请日：1999-12-07
申请人： Hiroyuki Okada
发明人： Hiroyuki Okada
IPC分类号： H01L41107
CPC分类号： H02N2/0025 , H02N2/0075 , H02N2/025 , H02N2/026 , H02N2/067
摘要： In a piezoelectric actuator, a first driving signal amplified a predetermined sine wave is a applied to a piezoelectric device in a direction parallel to a polarization direction thereof. A second driving signal having a negative phase with respect to the first driving signal which is amplified the sine wave is applied to the piezoelectric device in a direction opposite to the polarization direction. Thus, the piezoelectric device is driven by a driving signal amplified the first or second driving signal double. Voltages of the first and second driving signals are much smaller than a voltage of invention of polarization of ceramic thin plates constituting the piezoelectric device.
摘要翻译：在压电致动器中，放大了预定正弦波的第一驱动信号在与其偏振方向平行的方向上施加到压电器件。相对于放大正弦波的第一驱动信号具有负相位的第二驱动信号以与偏振方向相反的方向被施加到压电器件。因此，通过将第一或第二驱动信号放大倍数的驱动信号来驱动压电器件。第一驱动信号和第二驱动信号的电压远小于构成压电元件的陶瓷薄板的极化发明电压。

6. 发明授权

US06413443B1 Piezoelectric ceramic and piezoelectric device 有权
标题翻译：压电陶瓷和压电器件
公开(公告)号：US06413443B1
公开(公告)日：2002-07-02
申请号：US09713216
申请日：2000-11-16
申请人： Masahito Furukawa , Junichi Yamazaki , Yoshiko Gokita
发明人： Masahito Furukawa , Junichi Yamazaki , Yoshiko Gokita
IPC分类号： H01L41107
CPC分类号： H01L41/107 , C04B35/491 , H01L41/187
摘要： The piezoelectric ceramic includes oxide represented by (Pb1−aAa)s[Zn1/3Nb2/3)w(Mn1/3B2/3)xTiyZrz]O3. A represents at least one element in the group comprising Ca, Sr and Ba. B represents at least one element in the group comprising Nb, Sb and Ta and a, s, w, x, y and z are within a range of 0≦a≦0.1, 0.9≦s
摘要翻译：压电陶瓷包括由（Pb1-aAa）s [Zn1 / 3Nb2 / 3）w（Mn1 / 3B2 / 3）xTiyZrz] O3表示的氧化物。 A表示包含Ca，Sr和Ba的组中的至少一种元素。 B表示包含Nb，Sb和Ta的组中的至少一种元素，a，s，w，x，y和z在0 <= a <= 0.1,0.9 <= s <1.0,0.2 < w / x <= 3.0,0.1 <= y <= 0.5和0.2 <= z <= 0.6，w + x + y + z = 1。因此，可以容易且合理地获得高机械强度，并且在不研磨煅烧粉末或热压机的情况下也能获得优异的压电性能。

7. 发明授权

US06392332B1 Laminated piezo ceramic transformer device 失效
标题翻译：层压压电陶瓷变压器装置
公开(公告)号：US06392332B1
公开(公告)日：2002-05-21
申请号：US10001181
申请日：2001-12-04
申请人： Kuan Kuan Sung
发明人： Kuan Kuan Sung
IPC分类号： H01L41107
CPC分类号： H01L41/107 , H01L41/0471 , H01L41/0533 , H01L41/083
摘要： An improved structure of a laminated piezo ceramic transformer device comprising multiple thin square piezo ceramic plate, mesh-printing with electrode material in three different patterns, a circular internal electrode, a circular solid and or dotted line supporting structure and a connecting electrode. This improved structure has better plate support and even thickness to reduce known green body crack while laminating plate and reduce sintered parts micro-crack. Since expensive electrode material will accelerate ceramic crystallization resulting a lower sintering temperature and lower production cost, the circular solid and or dotted line supporting structure will maximize electrode material coverage but with less amount. In addition, applying a thin layer of bond, glue or paint to the piezo ceramic transformer will reduce insulation degradation caused by high moisture, avoid electrode oxidation and reduce noise level caused by inherent mechanical vibration. These improved structure and process provide a better yield rate, lower production cost and broader mobile application.
摘要翻译：包括多个薄方形压电陶瓷板的叠层压电陶瓷变压器装置的改进结构，具有三种不同图案的电极材料的网状印刷，圆形内部电极，圆形固体或虚线支撑结构和连接电极。这种改进的结构具有更好的板支撑，甚至厚度，以减少已知的生坯裂纹同时层压板和减少烧结部分微裂纹。由于昂贵的电极材料将加速陶瓷结晶，导致较低的烧结温度和较低的生产成本，圆形的固体和/或虚线支撑结构将使电极材料的覆盖范围最大化，但具有较少的量。另外，在压电陶瓷变压器上施加一层薄薄的粘合剂，胶水或涂料会降低高湿度引起的绝缘降解，避免电极氧化，降低固有机械振动引起的噪音。这些改进的结构和工艺提供了更好的成品率，更低的生产成本和更广泛的移动应用。

8. 发明授权

US06331748B1 Driving circuit of a piezo-ceramic transformer capable of controlling an input voltage and a dimming control method thereof 失效
标题翻译：能够控制输入电压的压电陶瓷变压器的驱动电路及其调光控制方法
公开(公告)号：US06331748B1
公开(公告)日：2001-12-18
申请号：US09557901
申请日：2000-04-21
申请人： Soongil Hong
发明人： Soongil Hong
IPC分类号： H01L41107
CPC分类号： H01L41/044
摘要： A fixed frequency driving circuit of a piezo-ceramic transformer capable of controlling an input voltage. The driving circuit includes a lamp; a PCT(Piezo-Ceramic Transformer) for driving the lamp; a PCT driving circuit for driving the PCT; a voltage doubler rectifier for rectifying an output voltage; a summing & error amplifying circuit for outputting by summing a dimming voltage and the output voltage; a charge pump circuit for maintaining zero voltage switching and reducing the switching loss; a temperature compensated VCO for compensating the temperature characteristics of PCT, and impact, etc. in the neighborhood; a phase detector for comparing the phase of the input and output signal of the PCT; a modulator capable of continuously obtaining an amplitude of a first harmonic frequency component when the input voltage is changed from Vmin to Vmax by controlling a duty ratio provided to a driver connected to the PCT according to the output signals of the phase detector and the summing & error amplifier.
摘要翻译：一种能够控制输入电压的压电陶瓷变压器的固定频率驱动电路。驱动电路包括灯; 用于驱动灯的PCT（压电陶瓷变压器）用于驱动PCT的PCT驱动电路; 用于整流输出电压的倍压整流器; 一个求和误差放大电路，用于通过对调光电压和输出电压求和来输出; 用于维持零电压开关并减少开关损耗的电荷泵电路; 用于补偿PCT的温度特性的温度补偿VCO和附近的冲击等; 用于比较PCT的输入和输出信号的相位的相位检测器; 通过根据相位检测器的输出信号控制提供给连接到PCT的驱动器的驱动器的占空比，当输入电压从Vmin变化到Vmax时，能够连续地获得第一谐波频率分量的振幅的调制器，误差放大器

9. 发明授权

US06310423B1 Surface acoustic wave device 失效
标题翻译：表面声波装置
公开(公告)号：US06310423B1
公开(公告)日：2001-10-30
申请号：US09533666
申请日：2000-03-23
申请人： Naoki Tanaka , Morio Ogura
发明人： Naoki Tanaka , Morio Ogura
IPC分类号： H01L41107
CPC分类号： H03H9/02559
摘要： An SAW device includes a glass substrate, an LiNbO3 (LN) substrate, and an electrode. When a pitch of the electrode is &lgr;, a thickness of the LN substrate is H, and K equals to 2&pgr;/&lgr;, a product of K and H is at least 0.5 and at most 1.0. Accordingly, an SAW device is obtained which is provided with high K2 and an enhanced temperature characteristic and which can be advantageously reduced in size.
摘要翻译： SAW器件包括玻璃衬底，LiNbO 3（LN）衬底和电极。当电极的间距为羔羊时，LN衬底的厚度为H，K等于2pi / lambd，K和H的乘积为至少0.5且至多为1.0。因此，获得了具有高K2和增强的温度特性并且可以有利地减小尺寸的SAW器件。

10. 发明授权

US06246153B1 Positive feedback resonant transducer circuit 失效
标题翻译：正反馈谐振换能器电路
公开(公告)号：US06246153B1
公开(公告)日：2001-06-12
申请号：US09503674
申请日：2000-02-14
申请人： Richard Patten Bishop , Clark Davis Boyd
发明人： Richard Patten Bishop , Clark Davis Boyd
IPC分类号： H01L41107
CPC分类号： H03F3/187 , B06B1/0238 , B06B2201/55 , H01L41/044 , H01L41/107
摘要： A circuit including a transformer, preferably a laminated piezoelectric transducer, in combination with a positive feedback amplifier circuit, capable of serving: 1) to produce either an audible or ultrasonic signal; or 2) as an energy source capable of driving an auxiliary high voltage device with an initial and continuing low voltage source such as a battery.
摘要翻译：包括与正反馈放大器电路组合的变压器，优选层压压电换能器的电路，其能够服务于：1）产生听觉或超声信号; 或2）作为能够用初始和持续的低电压源（例如电池）驱动辅助高压装置的能量源。

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