公开(公告)号：US09537418B2

公开(公告)日：2017-01-03

申请号：US14509053

申请日：2014-10-08

申请人： Ta-Ching Hsu ,  Chung-Ming Leng

发明人： Ta-Ching Hsu ,  Chung-Ming Leng

IPC分类号： H02M1/088 ,  H02M7/06 ,  H02M1/32

CPC分类号： H02M7/06 ,  H02M1/088 ,  H02M2001/322

摘要： A power conversion apparatus is provided. The power conversion apparatus receives an AC input power by an input side and includes a capacitor, an AC-to-DC conversion unit and a discharge unit. The capacitor is connected with the input side. The AC-to-DC conversion unit is coupled to the input side, and configured to convert the AC input power after receiving the AC input power to generate a DC output power. The discharge unit is coupled to the capacitor and has at least two switch elements. The discharge unit enables the at least two switch elements when supply of the AC input power is interrupted, such that one of a first discharge path and a second discharge path formed by the at least two switch elements is taken to discharge or drain the energy stored in the capacitor.

摘要翻译： 提供电力转换装置。 电力转换装置通过输入侧接收交流输入电力，并且包括电容器，AC-DC转换单元和放电单元。 电容器与输入端连接。 AC到DC转换单元耦合到输入侧，并且被配置为在接收到AC输入功率之后转换AC输入功率以产生DC输出功率。 放电单元耦合到电容器并且具有至少两个开关元件。 当AC输入功率的供给被中断时，放电单元使能至少两个开关元件，使得由至少两个开关元件形成的第一放电路径和第二放电路径中的一个被采取放电或排出存储的能量 在电容器中。

公开(公告)号：US20150262843A1

公开(公告)日：2015-09-17

申请号：US14574405

申请日：2014-12-18

申请人： Chih-Cheng Hsieh ,  Hsiu-Wen Hsu ,  Chun-Ying Yeh ,  Chung-Ming Leng

发明人： Chih-Cheng Hsieh ,  Hsiu-Wen Hsu ,  Chun-Ying Yeh ,  Chung-Ming Leng

IPC分类号： H01L21/56 ,  H01L23/31 ,  H01L25/18 ,  H01L23/00 ,  H01L25/07 ,  H01L25/00 ,  H01L21/683 ,  H01L23/492

CPC分类号： H01L21/56 ,  H01L21/561 ,  H01L21/568 ,  H01L21/6835 ,  H01L23/3114 ,  H01L23/4924 ,  H01L23/49816 ,  H01L23/5389 ,  H01L24/19 ,  H01L24/20 ,  H01L24/27 ,  H01L24/32 ,  H01L24/83 ,  H01L24/97 ,  H01L2221/68363 ,  H01L2221/68372 ,  H01L2221/68381 ,  H01L2224/0401 ,  H01L2224/04105 ,  H01L2224/12105 ,  H01L2224/131 ,  H01L2224/2732 ,  H01L2224/27332 ,  H01L2224/29023 ,  H01L2224/29111 ,  H01L2224/29139 ,  H01L2224/29147 ,  H01L2224/32245 ,  H01L2224/73267 ,  H01L2224/83005 ,  H01L2224/83191 ,  H01L2224/83851 ,  H01L2224/92244 ,  H01L2224/97 ,  H01L2924/1203 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/15153 ,  H01L2224/83 ,  H01L2924/014 ,  H01L2924/00014 ,  H01L2224/19

摘要： A package structure and a packaging method of wafer level chip scale package are provided. The packaging method includes: providing a carrier, and disposing a plurality of chips on the carrier; forming a plurality of adhesive layers on a surface of the corresponding chips; covering a conductive cover plate, bonding the conductive cover plate with the chips through the adhesive layers, and dividing out a plurality of packaging spaces by the conductive cover plate for disposing the chips respectively; and providing an insulation material to fill the packaging spaces through via holes on the conductive cover plate to form a first insulation structure; finally, removing the carrier.

摘要翻译： 提供晶片级芯片级封装的封装结构和封装方法。 包装方法包括：提供载体，并在载体上布置多个芯片; 在相应芯片的表面上形成多个粘合剂层; 覆盖导电盖板，通过粘合剂层将导电盖板与芯片接合，并且分别由用于设置芯片的导电盖板分割多个封装空间; 以及提供绝缘材料以通过所述导电盖板上的通孔填充所述包装空间以形成第一绝缘结构; 最后，删除载体。

公开(公告)号：US20150180324A1

公开(公告)日：2015-06-25

申请号：US14509053

申请日：2014-10-08

申请人： Ta-Ching Hsu ,  Chung-Ming Leng

发明人： Ta-Ching Hsu ,  Chung-Ming Leng

IPC分类号： H02M1/088 ,  H02M7/217 ,  H02M7/06

CPC分类号： H02M7/06 ,  H02M1/088 ,  H02M2001/322

摘要： A power conversion apparatus is provided. The power conversion apparatus receives an AC input power by an input side and includes a capacitor, an AC-to-DC conversion unit and a discharge unit. The capacitor is connected with the input side. The AC-to-DC conversion unit is coupled to the input side, and configured to convert the AC input power after receiving the AC input power to generate a DC output power. The discharge unit is coupled to the capacitor and has at least two switch elements. The discharge unit enables the at least two switch elements when supply of the AC input power is interrupted, such that one of a first discharge path and a second discharge path formed by the at least two switch elements is taken to discharge or drain the energy stored in the capacitor.

摘要翻译： 提供电力转换装置。 电力转换装置通过输入侧接收交流输入电力，并且包括电容器，AC-DC转换单元和放电单元。 电容器与输入端连接。 AC到DC转换单元耦合到输入侧，并且被配置为在接收到AC输入功率之后转换AC输入功率以产生DC输出功率。 放电单元耦合到电容器并且具有至少两个开关元件。 当AC输入功率的供给被中断时，放电单元使能至少两个开关元件，使得由至少两个开关元件形成的第一放电路径和第二放电路径中的一个被采取放电或排出存储的能量 在电容器中。

公开(公告)号：US07855520B2

公开(公告)日：2010-12-21

申请号：US12050993

申请日：2008-03-19

申请人： Chung-Ming Leng

发明人： Chung-Ming Leng

IPC分类号： H05B37/02

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  Y02B20/341

摘要： A light-emitting diode (LED) driving circuit and a secondary side controller for controlling the same control an output voltage of the LED driving circuit at a first driving voltage or a second driving voltage. When the output voltage is controlled at the first driving voltage, an LED module driven by the LED driving circuit is in a stably lighting state; and when the output voltage is controlled at the second driving voltage, the output voltage is approximately a threshold voltage of the LED module but higher than zero volt, so that the LED module is close to not emitting light. Therefore, in a dimming operation, the variation of voltage applied across the LED module is smaller than that in the conventional LED driving circuits to thereby protect the LED module against an excessive voltage stress and avoid the problem of inaccurate dimming.

摘要翻译： 发光二极管（LED）驱动电路和次级侧控制器，用于在第一驱动电压或第二驱动电压下控制LED驱动电路的输出电压。 当输出电压被控制在第一驱动电压时，由LED驱动电路驱动的LED模块处于稳定的点亮状态; 并且当输出电压被控制在第二驱动电压时，输出电压近似为LED模块的阈值电压但高于零伏，使得LED模块接近不发光。 因此，在调光操作中，LED模块上施加的电压变化小于常规LED驱动电路中的电压变化，从而保护LED模块免受过大的电压应力，并避免了不准确的调光问题。

公开(公告)号：US09299592B2

公开(公告)日：2016-03-29

申请号：US14574405

申请日：2014-12-18

申请人： Chih-Cheng Hsieh ,  Hsiu-Wen Hsu ,  Chun-Ying Yeh ,  Chung-Ming Leng

发明人： Chih-Cheng Hsieh ,  Hsiu-Wen Hsu ,  Chun-Ying Yeh ,  Chung-Ming Leng

IPC分类号： H01L23/495 ,  H01L21/56 ,  H01L21/683 ,  H01L23/31 ,  H01L23/492 ,  H01L23/00 ,  H01L23/538

CPC分类号： H01L21/56 ,  H01L21/561 ,  H01L21/568 ,  H01L21/6835 ,  H01L23/3114 ,  H01L23/4924 ,  H01L23/49816 ,  H01L23/5389 ,  H01L24/19 ,  H01L24/20 ,  H01L24/27 ,  H01L24/32 ,  H01L24/83 ,  H01L24/97 ,  H01L2221/68363 ,  H01L2221/68372 ,  H01L2221/68381 ,  H01L2224/0401 ,  H01L2224/04105 ,  H01L2224/12105 ,  H01L2224/131 ,  H01L2224/2732 ,  H01L2224/27332 ,  H01L2224/29023 ,  H01L2224/29111 ,  H01L2224/29139 ,  H01L2224/29147 ,  H01L2224/32245 ,  H01L2224/73267 ,  H01L2224/83005 ,  H01L2224/83191 ,  H01L2224/83851 ,  H01L2224/92244 ,  H01L2224/97 ,  H01L2924/1203 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/15153 ,  H01L2224/83 ,  H01L2924/014 ,  H01L2924/00014 ,  H01L2224/19

摘要： A package structure and a packaging method of wafer level chip scale package are provided. The packaging method includes: providing a carrier, and disposing a plurality of chips on the carrier; forming a plurality of adhesive layers on a surface of the corresponding chips; covering a conductive cover plate, bonding the conductive cover plate with the chips through the adhesive layers, and dividing out a plurality of packaging spaces by the conductive cover plate for disposing the chips respectively; and providing an insulation material to fill the packaging spaces through via holes on the conductive cover plate to form a first insulation structure; finally, removing the carrier.

摘要翻译： 提供晶片级芯片级封装的封装结构和封装方法。 包装方法包括：提供载体，并在载体上布置多个芯片; 在相应芯片的表面上形成多个粘合剂层; 覆盖导电盖板，通过粘合剂层将导电盖板与芯片接合，并且分别由用于设置芯片的导电盖板分割多个封装空间; 以及提供绝缘材料以通过所述导电盖板上的通孔填充所述包装空间以形成第一绝缘结构; 最后，删除载体。

公开(公告)号：US09030109B2

公开(公告)日：2015-05-12

申请号：US13555029

申请日：2012-07-20

申请人： Chien-Ching Li ,  Chung-Ming Leng

发明人： Chien-Ching Li ,  Chung-Ming Leng

IPC分类号： H05B37/00 ,  H05B33/08

CPC分类号： H05B33/0824

摘要： A LED current-balance driving circuit having a current-balance coil set, a switching unit, and a control circuit is provided. The current-balance coil set has at least a first coil and a second coil, both of which are in connection with respective LED strings, for balancing currents flowing through the LED strings. The switching unit and a leakage inductance of current-balance coil set are utilized to facilitate the voltage conversion for driving the LED strings. A duty cycle of the switching unit is controlled by the control circuit according to the currents flowing through the LED strings.

摘要翻译： 提供具有电流平衡线圈组，开关单元和控制电路的LED电流平衡驱动电路。 电流平衡线圈组具有至少第一线圈和第二线圈，它们都与各个LED串连接，用于平衡流经LED串的电流。 利用开关单元和电流平衡线圈组的漏电感来促进驱动LED串的电压转换。 开关单元的占空比由控制电路根据流过LED串的电流来控制。

公开(公告)号：US20130134887A1

公开(公告)日：2013-05-30

申请号：US13555029

申请日：2012-07-20

申请人： CHIEN-CHING LI ,  CHUNG-MING LENG

发明人： CHIEN-CHING LI ,  CHUNG-MING LENG

IPC分类号： H05B37/02

CPC分类号： H05B33/0824

摘要： A LED current-balance driving circuit having a current-balance coil set, a switching unit, and a control circuit is provided. The current-balance coil set has at least a first coil and a second coil, both of which are in connection with respective LED strings, for balancing currents flowing through the LED strings. The switching unit and a leakage inductance of current-balance coil set are utilized to facilitate the voltage conversion for driving the LED strings. A duty cycle of the switching unit is controlled by the control circuit according to the currents flowing through the LED strings.

摘要翻译： 提供具有电流平衡线圈组，开关单元和控制电路的LED电流平衡驱动电路。 电流平衡线圈组具有至少第一线圈和第二线圈，它们都与各个LED串连接，用于平衡流经LED串的电流。 利用开关单元和电流平衡线圈组的漏电感来促进驱动LED串的电压转换。 开关单元的占空比由控制电路根据流过LED串的电流来控制。

公开(公告)号：US20110101939A1

公开(公告)日：2011-05-05

申请号：US12785464

申请日：2010-05-23

申请人： CHUNG-MING LENG ,  CHANG-HSIN SHEN

发明人： CHUNG-MING LENG ,  CHANG-HSIN SHEN

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02M2001/0032 ,  Y02B70/16

摘要： A driving controller, power conversion circuit, and method for modulating driving voltage level with respect to a load are disclosed. In which the method, controller and circuit are applied for modulating the driving voltage of a transistor in a power converter. The driving controller includes a load parameter measurement unit, a voltage modulation unit, and a driving control unit. In which the load parameter measurement unit detects a load parameter which represents the magnitude of the load of the power conversion circuit. The voltage modulation unit then modulates the potential level of the driving voltage of the transistors in response to the load parameter for reducing unnecessary power consumption associated with the transistors in the power converter and enhancing overall power efficiency of the power conversion circuit.

摘要翻译： 公开了一种用于调节相对负载的驱动电压电平的驱动控制器，功率转换电路和方法。 其中应用方法，控制器和电路来调制功率转换器中的晶体管的驱动电压。 驱动控制器包括负载参数测量单元，电压调制单元和驱动控制单元。 其中负载参数测量单元检测表示功率转换电路的负载大小的负载参数。 然后，电压调制单元响应于负载参数调制晶体管的驱动电压的电位电平，以减少与功率转换器中的晶体管相关联的不必要的功耗，并提高功率转换电路的整体功率效率。

公开(公告)号：US20090237007A1

公开(公告)日：2009-09-24

申请号：US12050993

申请日：2008-03-19

申请人： Chung-Ming Leng

发明人： Chung-Ming Leng

IPC分类号： H05B37/02

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  Y02B20/341

摘要： A light-emitting diode (LED) driving circuit and a secondary side controller for controlling the same control an output voltage of the LED driving circuit at a first driving voltage or a second driving voltage. When the output voltage is controlled at the first driving voltage, an LED module driven by the LED driving circuit is in a stably lighting state; and when the output voltage is controlled at the second driving voltage, the output voltage is approximately a threshold voltage of the LED module but higher than zero volt, so that the LED module is close to not emitting light. Therefore, in a dimming operation, the variation of voltage applied across the LED module is smaller than that in the conventional LED driving circuits to thereby protect the LED module against an excessive voltage stress and avoid the problem of inaccurate dimming.

摘要翻译： 发光二极管（LED）驱动电路和次级侧控制器，用于在第一驱动电压或第二驱动电压下控制LED驱动电路的输出电压。 当输出电压被控制在第一驱动电压时，由LED驱动电路驱动的LED模块处于稳定的点亮状态; 并且当输出电压被控制在第二驱动电压时，输出电压近似为LED模块的阈值电压但高于零伏，使得LED模块接近不发光。 因此，在调光操作中，LED模块上施加的电压变化小于常规LED驱动电路中的电压变化，从而保护LED模块免受过大的电压应力，并避免了不准确的调光问题。