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1. 发明申请

US20090009005A1 Control method for parallel redundant power system 审中-公开
标题翻译：并联冗余电源系统的控制方法
公开(公告)号：US20090009005A1
公开(公告)日：2009-01-08
申请号：US12231859
申请日：2008-09-05
申请人： Han-Sheng Luo , Shou-Long Tian , Chia-Ming Tsai
发明人： Han-Sheng Luo , Shou-Long Tian , Chia-Ming Tsai
IPC分类号： H02J3/00
CPC分类号： H02M7/493 , H02M2001/0012 , H02M2001/008 , Y10T307/707
摘要： A method for controlling the power system is presented. The power system is composed of at least one inverter for supplying AC power to a load through a bus, a phase lock system to synchronize all output voltages of the inverters and a current sharing circuit to properly distribute the load current among all inverters. Each inverter is controlled by an unbalanced power to limit the increase of its cross current. Moreover, the information related to DC bus voltage is further applied to control the inverters, whereby the cross current is mitigated and entire power system is operated steadily.
摘要翻译：提出了一种控制电力系统的方法。电力系统由至少一个用于通过总线向负载提供交流电力的逆变器，用于同步逆变器的所有输出电压的相位锁定系统和电流共享电路组成，以在所有逆变器之间适当分配负载电流。每个逆变器由不平衡功率控制，以限制其交叉电流的增加。此外，进一步应用与直流母线电压相关的信息来控制逆变器，从而减轻交叉电流，并且整个电力系统稳定地运行。

2. 发明授权

US07288754B2 Optical receiver 有权
标题翻译：光接收机
公开(公告)号：US07288754B2
公开(公告)日：2007-10-30
申请号：US10926062
申请日：2004-08-26
申请人： Chia-Ming Tsai
发明人： Chia-Ming Tsai
IPC分类号： H01J40/14 , H04B10/06
CPC分类号： H04B10/6973
摘要： An optical receiver. The optical receiver includes a photodiode, a differential transimpedance amplifier, a transistor, and a current source. When the photodiode receives an optical signal, a current signal transmitted from a cathode of the photodiode to an anode thereof is generated. Two input terminals of the differential transimpedance amplifier couple the current signal, and the differential transimpedance amplifier converts the current signal to a voltage signal. In addition, voltage variation of the cathode is coupled to the anode through a voltage follower composed by the transistor and the current source. As a result, voltage of the cathode and that of the anode vary in phase, effectively decreasing a value of the photodiode parasitic capacitance and improving operating bandwidth.
摘要翻译：光接收机。光接收器包括光电二极管，差分跨阻放大器，晶体管和电流源。当光电二极管接收光信号时，产生从光电二极管的阴极发送到其阳极的电流信号。差分跨阻放大器的两个输入端耦合电流信号，差分跨阻放大器将电流信号转换为电压信号。此外，阴极的电压变化通过由晶体管和电流源组成的电压跟随器耦合到阳极。结果，阴极和阳极的电压相位变化，有效地降低了光电二极管寄生电容的值并提高了工作带宽。

3. 发明申请

US20050095013A1 Optical receiving device 有权
标题翻译：光接收装置
公开(公告)号：US20050095013A1
公开(公告)日：2005-05-05
申请号：US10745655
申请日：2003-12-29
申请人： Chia-Ming Tsai
发明人： Chia-Ming Tsai
IPC分类号： H04B10/158 , H04B10/06
CPC分类号： H04B10/66
摘要： An optical receiving device. The optical receiving device has a photodiode, transimpedance amplifier, and a feedback component. The photodiode has a first terminal coupled to a voltage source and a second terminal. When detecting an optical signal, the photodiode generates a current signal output from the second terminal. The transimpedance amplifier converts the current signal to a voltage signal and outputs the voltage. The feedback component is coupled between the first terminal and a input terminal of the transimpedance amplifier. The feedback component feeds a first voltage-changing signal, occurring in the input terminal of the transimdepance amplifier with the current signal, to the first terminal.
摘要翻译：光接收装置。光接收装置具有光电二极管，跨阻放大器和反馈部件。光电二极管具有耦合到电压源和第二端子的第一端子。当检测到光信号时，光电二极管产生从第二端输出的电流信号。跨阻放大器将电流信号转换为电压信号并输出电压。反馈部件耦合在第一端子和跨阻抗放大器的输入端子之间。反馈部件将在跨导放大器的输入端子中出现的第一电压变化信号与电流信号馈送到第一端子。

4. 发明授权

US06735228B2 Driving control circuit for light-emitting device 有权
标题翻译：发光装置的驱动控制电路
公开(公告)号：US06735228B2
公开(公告)日：2004-05-11
申请号：US10227408
申请日：2002-08-26
申请人： Chia-Ming Tsai
发明人： Chia-Ming Tsai
IPC分类号： H01S300
CPC分类号： G11B7/126 , H01S5/042
摘要： A driving control circuit for a light-emitting device. The circuit generates a high-speed modulated current to drive the light-emitting device. The circuit includes an adjustable gain circuit, a current output circuit, and a level control circuit. The adjustable gain circuit receives a digital signal and generates an output voltage controlled by a first control signal and a second control signal. The current output circuit includes a first transistor. A gate of the first transistor is coupled to the adjustable gain circuit, which adjusts a range of the gate voltage to generate the high-speed modulated current, and the level control circuit sets the voltages of the first control signal and the second control signal.
摘要翻译：一种用于发光装置的驱动控制电路。电路产生高速调制电流来驱动发光器件。电路包括可调增益电路，电流输出电路和电平控制电路。可调增益电路接收数字信号并产生由第一控制信号和第二控制信号控制的输出电压。电流输出电路包括第一晶体管。第一晶体管的栅极耦合到可调节增益电路，其调节栅极电压的范围以产生高速调制电流，并且电平控制电路设置第一控制信号和第二控制信号的电压。

5. 发明授权

US09851745B2 Latch for a computer case 有权
公开(公告)号：US09851745B2
公开(公告)日：2017-12-26
申请号：US14426960
申请日：2012-09-12
申请人： Jeffrey A. Lev , Chia-Ming Tsai , Hui Leng Lim
发明人： Jeffrey A. Lev , Chia-Ming Tsai , Hui Leng Lim
IPC分类号： G06F1/16 , H05K5/02
CPC分类号： G06F1/16 , G06F1/1679 , H05K5/0221 , Y10T29/49895
摘要： A latch is disclosed. The latch has a hook that rotates to engage with a case for a computer. The hook has one side fabricated from a ferrous material. The hook is unlatched by placing a magnet near the ferrous material thereby causing the hook to rotate and disengage with the top case.

6. 发明申请

US20070152756A1 Transimpedance amplifier using negative impedance compensation 有权
标题翻译：使用负阻抗补偿的互阻放大器
公开(公告)号：US20070152756A1
公开(公告)日：2007-07-05
申请号：US11369286
申请日：2006-03-06
申请人： Day-Uei Li , Chia-Ming Tsai
发明人： Day-Uei Li , Chia-Ming Tsai
IPC分类号： H03F3/08
CPC分类号： H03F3/08
摘要： A transimpedance amplifier (TIA) with negative impedance compensation is disclosed, which comprises a TIA element and a negative impedance compensator connected to the output terminal of the TIA element. There are various designs capable of implementing the negative impedance compensator. The major components of the negative impedance compensator are a negative impedance element formed by a positive feedback circuit, and a compensation circuit for the parasitic capacitance at the output terminal. The negative impedance compensator changes the equivalent impedance of the output terminal from low to high with respect to the ground, and compensates the parasitic capacitance at the output terminal. Thus, an increase of both bandwidth and voltage gain is achieved.
摘要翻译：公开了一种具有负阻抗补偿的跨阻放大器（TIA），其包括连接到TIA元件的输出端的TIA元件和负阻抗补偿器。存在能够实现负阻抗补偿器的各种设计。负阻抗补偿器的主要部件是由正反馈电路形成的负阻抗元件，以及用于输出端子处的寄生电容的补偿电路。负阻抗补偿器将输出端子的等效阻抗从低到高改变为相对于地，并补偿输出端子的寄生电容。因此，实现了带宽和电压增益的增加。

7. 发明授权

US06958840B2 Driving circuit for optical modulator 有权
公开(公告)号：US06958840B2
公开(公告)日：2005-10-25
申请号：US10814028
申请日：2004-03-31
申请人： Chia-Ming Tsai
发明人： Chia-Ming Tsai
IPC分类号： G02B26/00 , G02F1/00 , G02F1/01 , G09G3/34
CPC分类号： G02F1/0121
摘要： A driving circuit of an optical modulator using cascode output structure including transistors to output an output voltage uniformly shared between the cascode transistors. Thus, the driving circuit outputs high driving voltage exceeding the toleration voltage of single transistor.

8. 发明申请

US20050175359A1 Optical receiver 有权
标题翻译：光接收机
公开(公告)号：US20050175359A1
公开(公告)日：2005-08-11
申请号：US10926062
申请日：2004-08-26
申请人： Chia-Ming Tsai
发明人： Chia-Ming Tsai
IPC分类号： H01L31/10 , H04B10/06 , H04B10/158
CPC分类号： H04B10/6973
摘要： An optical receiver. The optical receiver includes a photodiode, a differential transimpedance amplifier, a transistor, and a current source. When the photodiode receives an optical signal, a current signal transmitted from a cathode of the photodiode to an anode thereof is generated. Two input terminals of the differential transimpedance amplifier couple the current signal, and the differential transimpedance amplifier converts the current signal to a voltage signal. In addition, voltage variation of the cathode is coupled to the anode through a voltage follower composed by the transistor and the current source. As a result, voltage of the cathode and that of the anode vary in phase, effectively decreasing a value of the photodiode parasitic capacitance and improving operating bandwidth.
摘要翻译：光接收机。光接收器包括光电二极管，差分跨阻放大器，晶体管和电流源。当光电二极管接收光信号时，产生从光电二极管的阴极发送到其阳极的电流信号。差分跨阻放大器的两个输入端耦合电流信号，差分跨阻放大器将电流信号转换为电压信号。此外，阴极的电压变化通过由晶体管和电流源组成的电压跟随器耦合到阳极。结果，阴极和阳极的电压相位变化，有效地降低了光电二极管寄生电容的值并提高了工作带宽。

9. 发明授权

US06803679B1 Parallel redundant power system and method for control of the power system 有权
标题翻译：并联冗余电力系统及电力系统控制方法
公开(公告)号：US06803679B1
公开(公告)日：2004-10-12
申请号：US10677896
申请日：2003-10-02
申请人： Han-Sheng Luo , Shou-Long Tian , Chia-Ming Tsai
发明人： Han-Sheng Luo , Shou-Long Tian , Chia-Ming Tsai
IPC分类号： H02M700
CPC分类号： H02M7/493 , H02J3/44 , H02J3/46 , H02J9/062 , Y10T307/625
摘要： A parallel redundant power system and a method for control the same, wherein the power system is composed by UPS modules with outputs coupled in parallel to supply power to a load through a bus. The control method employs the P−&ohgr; and Q−V slope lines of the droop method to perform phase locking and current sharing. Moreover, the method further utilizes the internal impedance of the UPS in accompaniment with a current shift method to simulate an actual inductor being coupled to the output of the UPS module so as to satisfy the droop method. Therefore, the drawbacks otherwise caused from actual inductors such as the large size and heave weight are eliminated.
摘要翻译：一种并联冗余电源系统及其控制方法，其中电力系统由具有并联耦合输出的UPS模块组成，以通过总线向负载供电。控制方法采用垂直方式的P-ω和Q-V斜线执行锁相和电流共享。此外，该方法还利用当前的移位方法来利用UPS的内部阻抗来模拟耦合到UPS模块的输出的实际电感器，以满足下垂方法。因此，消除了诸如大尺寸和起伏重量的实际电感器导致的缺点。

10. 发明授权

US06700909B2 Light-emitting device driving circuit 有权
标题翻译：发光装置驱动电路
公开(公告)号：US06700909B2
公开(公告)日：2004-03-02
申请号：US10138314
申请日：2002-05-06
申请人： Chia-Ming Tsai
发明人： Chia-Ming Tsai
IPC分类号： H01S300
CPC分类号： H01S5/06808 , H01S5/042 , H01S5/0427
摘要： A light-emitting device driving circuit. The circuit uses an adaptive feedback control circuit to control the gain of a driving circuit and set the modulation current output of the driving circuit, so as to automatically adjust the differential gain stage to the optimal gain and obtain the optimal current output waveform under any operating condition, and further to eliminate overshoot and duty cycle distortion. The light-emitting device driving circuit includes a tunable gain-controlled differential amplifier; a first differential output stage and a negative feedback control circuit. The negative feedback control circuit further includes a detection circuit, a comparison circuit and a second differential output stage.
摘要翻译：发光装置驱动电路。该电路使用自适应反馈控制电路来控制驱动电路的增益，并设置驱动电路的调制电流输出，以便将微分增益级自动调整为最佳增益，并在任何操作下获得最佳电流输出波形条件，并进一步消除过冲和占空比失真。发光器件驱动电路包括可调增益控制的差分放大器; 第一差分输出级和负反馈控制电路。负反馈控制电路还包括检测电路，比较电路和第二差分输出级。

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