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    • 4. 发明授权
    • Slot-in optical disk drive
    • 插槽光盘驱动器
    • US08095944B2
    • 2012-01-10
    • US12492687
    • 2009-06-26
    • Yu-Ming ChangYu-Sheng WangJen-Chen Wu
    • Yu-Ming ChangYu-Sheng WangJen-Chen Wu
    • G11B17/051G11B17/04
    • G11B17/0515
    • A slot-in type disk drive fastens a clamping unit with two protrusions around its periphery on the central hole of a base plate. A front positioning part utilizes a stick to link a front right positioning bar and a front left positioning bar to synchronously open or close. A locking rod has a limiting pin inserted into an arc slot on the side of the base plate, and protrudes a locking end from the rear end. A rear positioning part utilizes an idle gear to link rear right and rear left positioning bars to synchronously open or close. The locking end can insert a first or second positioning recess on the rear left positioning bar and a touch block of the locking rod leans against the first protrusion. A lever is disposed on the rear right positioning bar to link a linkage plate set by one end.
    • 插入式磁盘驱动器在基板的中心孔周围围绕其周边紧固具有两个突起的夹紧单元。 前定位部件利用杆来连接前右定位杆和前左定位杆以同步打开或关闭。 锁定杆具有插入基板侧面的弧形槽中的限制销,并且从后端突出锁定端。 后定位部件利用空转齿轮连接后左右定位杆,以同步打开或关闭。 锁定端可以在后左定位杆上插入第一或第二定位凹槽,并且锁定杆的触摸块抵靠第一突起。 杠杆设置在后右定位杆上,以将连接板组合在一端。
    • 6. 发明授权
    • Soft-switching DC/DC converter having relatively fewer elements
    • 具有相对较少元件的软开关DC / DC转换器
    • US07215101B2
    • 2007-05-08
    • US11141217
    • 2005-05-31
    • Yu-Ming Chang
    • Yu-Ming Chang
    • G05F1/613
    • H02M3/158H02M2001/0048Y02B70/1425Y02B70/1491
    • The proposed soft-switching DC/DC converter includes: a basic non-isolated DC/DC converter having an inductor, and an auxiliary switch module including: an auxiliary switch having a first terminal electrically connected to a first terminal of the inductor, a second terminal, and a control terminal, a resonant inductor having a first terminal electrically connected to the second terminal of the auxiliary switch, a resonant diode having a cathode electrically connected to a second terminal of the resonant inductor and an anode electrically connected to a second terminal of the inductor, and a main switch. A driving signal is input to the control terminals of the main and the auxiliary switches from a driving circuit to switch the main and the auxiliary switches at a zero-voltage and a zero-current so as to have zero switching loss respectively.
    • 所提出的软开关DC / DC转换器包括:具有电感器的基本非隔离DC / DC转换器和辅助开关模块,其包括:辅助开关,其具有电连接到电感器的第一端子的第一端子, 端子和控制端子,具有电连接到辅助开关的第二端子的第一端子的谐振电感器,具有电连接到谐振电感器的第二端子的阴极和与第二端子电连接的阳极的谐振二极管 的电感器和主开关。 驱动信号从驱动电路输入到主辅助开关的控制端子,以分别以零电压和零电流切换主开关和辅助开关,从而分别具有零开关损耗。
    • 8. 发明申请
    • Soft-switching three-phase power factor correction converter
    • 软开关三相功率因数校正转换器
    • US20050024023A1
    • 2005-02-03
    • US10838446
    • 2004-05-04
    • Yu-Ming Chang
    • Yu-Ming Chang
    • H02M1/00H02M1/42H02M7/06
    • H02M1/4216Y02B70/126Y02P80/112
    • The proposed converter includes: three boost inductors, three filter capacitors, six main switch modules each having a switch element, a diode and a resonant capacitor, two auxiliary switches, two main diodes, a resonant inductor, and two output capacitors. A control circuit is employed for generating driving signals from six SPWM signals to drive the six main switches and the two auxiliary switches of the converter. A six-step control method is employed to adjust the SPWM signals and a soft-switching method is employed to generate the driving signals to turn on/off the six main switch modules and the two auxiliary switches when the voltage on the second terminal of each main switch module/auxiliary switch is zero and the current flows into each auxiliary switch is zero to correct the power factor.
    • 所提出的转换器包括:三个升压电感器,三个滤波电容器,六个主开关模块,每个具有开关元件,二极管和谐振电容器,两个辅助开关,两个主二极管,谐振电感器和两个输出电容器。 采用控制电路从六个SPWM信号产生驱动信号,以驱动转换器的六个主开关和两个辅助开关。 采用六步控制方式来调节SPWM信号,采用软开关方式产生驱动信号,以在六个主开关模块和两个辅助开关的每个端子上的电压 主开关模块/辅助开关为零,流入各辅助开关的电流为零,以校正功率因数。
    • 9. 发明授权
    • Softing switching DC-to-DC converter with an active power sink circuit
    • 具有有源功率电源的Softing开关DC-DC转换器
    • US06788032B2
    • 2004-09-07
    • US10435133
    • 2003-05-09
    • Chih-Chiang ChanYu-Ming Chang
    • Chih-Chiang ChanYu-Ming Chang
    • G05F110
    • H02M1/4225H02M3/3372H02M2001/007Y02B70/126Y02B70/1433
    • The DC-to-DC converter including a boost converter circuit, a resonant circuit, and an active power sink circuit is provided. The boost converter circuit has a main switch for boosting a first DC voltage into a second DC voltage. The resonant circuit includes a unidirectional switch, a resonant capacitor, and a first winding of a transformer for causing the main switch to be controlled to exhibit near zero voltage switching. And, the active power sink circuit is magnetically coupled to the first winding of the transformer for draining energy in an inductance of the transformer off via magnetic induction between the active power sink circuit and the transformer, and causing the unidirectional switch to be controlled to exhibit near zero current switching.
    • 提供了包括升压转换器电路,谐振电路和有源功率吸收电路的DC-DC转换器。 升压转换器电路具有用于将第一直流电压升压成第二直流电压的主开关。 谐振电路包括单向开关,谐振电容器和变压器的第一绕组,用于使主开关被控制为呈现近零电压开关。 并且,有源功率吸收电路磁耦合到变压器的第一绕组,用于通过有源功率吸收电路和变压器之间的磁感应来消除变压器的电感中的能量,并且使得单向开关被控制为展现 接近零电流切换。
    • 10. 发明授权
    • Method and apparatus for supplying uninterrupted power
    • 提供不间断电源的方法和装置
    • US6115268A
    • 2000-09-05
    • US132173
    • 1998-08-11
    • Yu-Ming ChangFang-Yi Lu
    • Yu-Ming ChangFang-Yi Lu
    • H02J7/00G06F1/26H02J3/00H02J7/10H02J7/34H02J9/06
    • H02J9/062
    • An expedient and simplified uninterrupted power-supplying apparatus is provided. Such apparatus includes a power-storing device for storing an electric signal in a first instance and releasing the electric signal in a second instance, an AC/DC converting device for converting an AC signal provided by the power source into a DC signal, a DC/DC converting device for receiving the DC signal, and generating the uninterrupted power and storing the electric signal in the power-storing device in response to a voltage thereof in the first instance, and receiving the released electric signal and generating the uninterrupted power in the second instance, and a controlling device for controlling the DC/DC converting device to store the electric signal in the power-storing device and making the AC/DC converting device vary the DC signal in response to the voltage of the power-storing device. The invention also discloses a method for supplying an uninterrupted power.
    • 提供了一种方便和简化的不间断供电装置。 这种设备包括一个用于在第一种情况下存储电信号并在第二种情况下释放电信号的蓄电装置,用于将由电源提供的AC信号转换为DC信号的AC / DC转换装置,DC DC转换装置,用于接收直流信号,并且产生不间断电力,并且响应于其第一次的电压而将电信号存储在蓄电装置中,并且接收释放的电信号并产生不间断的电力 第二实例,以及用于控制DC / DC转换装置以将电信号存储在蓄电装置中并使得AC / DC转换装置响应于蓄电装置的电压改变DC信号的控制装置。 本发明还公开了一种提供不间断电源的方法。