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1. 发明申请

US20130134887A1 LED CURRENT BALANCE DRIVING CIRCUIT 有权
标题翻译： LED电流平衡驱动电路
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。

2. 发明申请

US20110101939A1 DRIVING CONTROLLER, POWER CONVERSION CIRCUIT, AND METHOD FOR MODULATING DRIVING VOLTAGE LEVEL WITH RESPECT TO LOADS 审中-公开
标题翻译：驱动控制器，功率转换电路以及相对于负载调制驱动电压等级的方法
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。

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