专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20130141008A1 LED DRIVING DEVICE AND METHOD THEREOF 审中-公开
标题翻译： LED驱动装置及其方法
公开(公告)号：US20130141008A1
公开(公告)日：2013-06-06
申请号：US13340947
申请日：2011-12-30
申请人： WEI CHANG , SHAO-WEI CHIU
发明人： WEI CHANG , SHAO-WEI CHIU
IPC分类号： H05B37/02
CPC分类号： H05B33/0815
摘要： An LED driving device and its method are suitable for driving and regulating an illumination brightness of at least one LED. After switching the phase angle of an alternating voltage through a regulation circuit, an integration circuit and a filter circuit are utilized to generate a stable constant voltage. Next, the magnitude of the constant voltage is regulated in stage through a driving circuit based upon a control signal of a control circuit, and the voltage is converted into a constant current for driving the LED. Accordingly, the invention utilizes the constant current with stage variation to achieve the effect of linear dimming to prevent flickering.
摘要翻译： LED驱动装置及其方法适用于驱动和调节至少一个LED的照明亮度。在通过调节电路切换交流电压的相位角之后，利用积分电路和滤波电路产生稳定的恒定电压。接下来，通过基于控制电路的控制信号的驱动电路对稳定电压的幅度进行调节，并且将该电压转换成用于驱动LED的恒定电流。因此，本发明利用具有阶段变化的恒定电流来实现线性调光的效果以防止闪烁。

2. 发明授权

US07362592B2 Switching control circuit for primary-side controlled power converters 有权
标题翻译：初级侧电源转换器的开关控制电路
公开(公告)号：US07362592B2
公开(公告)日：2008-04-22
申请号：US10943318
申请日：2004-09-16
申请人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu G. Lin , Chuh-Ching Li , Shao-Wei Chiu
发明人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu G. Lin , Chuh-Ching Li , Shao-Wei Chiu
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： The present invention discloses a switching control circuit for a primary-side controlled power converter. A voltage-waveform detector produces a voltage-feedback signal and a discharge-time signal. A current-waveform detector generates a current-waveform signal by measuring a primary-side switching current. An integrator generates a current-feedback signal by integrating the current-waveform signal with the discharge time. A time constant of the integrator is correlated with the switching frequency, thus the current-feedback signal is proportional to an output current of the power converter. A PWM circuit controls the pulse width of the switching signal in response to the outputs of a voltage-loop error amplifier and a current-loop error amplifier. The output voltage and the maximum output current of the power converter are therefore regulated.
摘要翻译：本发明公开了一种用于初级侧受控电力转换器的开关控制电路。电压波形检测器产生电压反馈信号和放电时间信号。电流波形检测器通过测量初级侧开关电流产生电流波形信号。积分器通过将电流波形信号与放电时间进行积分来产生电流反馈信号。积分器的时间常数与开关频率相关，因此电流反馈信号与功率转换器的输出电流成正比。 PWM电路响应于电压环路误差放大器和电流环路误差放大器的输出来控制开关信号的脉冲宽度。因此调节功率转换器的输出电压和最大输出电流。

3. 发明申请

US20120212147A1 Flyback Energy Converter 审中-公开
标题翻译：反激能量转换器
公开(公告)号：US20120212147A1
公开(公告)日：2012-08-23
申请号：US13399215
申请日：2012-02-17
申请人： Chun-Chien Kuo , Shao-Wei Chiu , Ke-Horng Chen , Wei-Lun Wang
发明人： Chun-Chien Kuo , Shao-Wei Chiu , Ke-Horng Chen , Wei-Lun Wang
IPC分类号： H05B37/02 , H02M3/335
CPC分类号： H05B33/0815 , H02M3/33507 , Y02B20/346
摘要： The present invention is to provide a flyback energy converter comprising a transformer having a primary winding, a secondary winding and an auxiliary winding, a load electrically connected with the secondary winding, a switch serially connected with the primary winding and a primary controlling circuit. The primary controlling circuit comprises a voltage measurement terminal and a switch controlling terminal. The voltage measurement terminal measures an output voltage wave provided from the auxiliary winding to get a part of times in the part of the output voltage wave, so as to enlarge the part of times to a total time. According to a predetermined timing transferred from the total time, the switch controlling terminal controls the switch.
摘要翻译：本发明提供一种回扫能量转换器，其包括具有初级绕组，次级绕组和辅助绕组的变压器，与次级绕组电连接的负载，与初级绕组串联连接的开关和主控制电路。主控电路包括电压测量端子和开关控制端子。电压测量端子测量从辅助绕组提供的输出电压波，以获得部分输出电压波的一部分时间，从而将部分时间扩大到总时间。根据从总时间传送的预定定时，开关控制端控制开关。

4. 发明申请

US20120081008A1 CONTROL CIRCUIT MODULE OF LIGHT-EMITTING DIODE LAMP 审中-公开
标题翻译：发光二极管灯的控制电路模块
公开(公告)号：US20120081008A1
公开(公告)日：2012-04-05
申请号：US13164918
申请日：2011-06-21
申请人： Ke-Horng CHEN , Shao-Wei Chiu , Chun-Chieh Kuo , Yung-Lin Chen , Shih-Ping Tu
发明人： Ke-Horng CHEN , Shao-Wei Chiu , Chun-Chieh Kuo , Yung-Lin Chen , Shih-Ping Tu
IPC分类号： H05B37/02
CPC分类号： H05B33/0821 , H05B33/0809 , H05B33/083
摘要： The present invention relates to a control circuit module of light-emitting diode (LED) lamp, which comprises: a AC to DC element, for transferring mains AC power to DC power; a plurality of groups of LED; a plurality of switches, corresponding to the number of the groups of LED, for controlling to turn on/off the each group; a linear voltage regulator, for cutting the DC power from the AC to DC element to a plurality of voltage sections; a switch selector, for selecting to open/close the switches according to the voltage sections from the linear voltage regulator; a current selector, for capturing available current sections from the voltage sections of the linear voltage regulator; and a LED current setup device, for controlling the current sections to open/close the plurality of switches by a user according to the LED current setup device and the current selector.
摘要翻译：本发明涉及发光二极管（LED）灯的控制电路模块，其包括：AC至DC元件，用于将市电交流电转换为直流电; 多组LED; 多个开关，对应于LED组的数量，用于控制每个组的开/关; 线性电压调节器，用于将从AC到DC元件的DC电力切割到多个电压部分; 开关选择器，用于根据来自线性稳压器的电压部分选择开关; 电流选择器，用于从线性稳压器的电压部分捕获可用的电流部分; 以及LED电流设置装置，用于根据LED当前设置装置和当前选择器来控制用户根据当前部分打开/关闭多个开关。

5. 发明申请

US20060056204A1 Switching control circuit for primary-side controlled power converters 有权
标题翻译：初级侧电源转换器的开关控制电路
公开(公告)号：US20060056204A1
公开(公告)日：2006-03-16
申请号：US10943318
申请日：2004-09-16
申请人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu Lin , Chuh-Ching Li , Shao-Wei Chiu
发明人： Ta-yung Yang , Guo-Kiang Hung , Jenn-yu Lin , Chuh-Ching Li , Shao-Wei Chiu
IPC分类号： H02M5/27
CPC分类号： H02M3/33507
摘要： The present invention discloses a switching control circuit for a primary-side controlled power converter. A voltage-waveform detector produces a voltage-feedback signal and a discharge-time signal. A current-waveform detector generates a current-waveform signal by measuring a primary-side switching current. An integrator generates a current-feedback signal by integrating the current-waveform signal with the discharge time. A time constant of the integrator is correlated with the switching frequency, thus the current-feedback signal is proportional to an output current of the power converter. A PWM circuit controls the pulse width of the switching signal in response to the outputs of a voltage-loop error amplifier and a current-loop error amplifier. The output voltage and the maximum output current of the power converter are therefore regulated.
摘要翻译：本发明公开了一种用于初级侧受控电力转换器的开关控制电路。电压波形检测器产生电压反馈信号和放电时间信号。电流波形检测器通过测量初级侧开关电流产生电流波形信号。积分器通过将电流波形信号与放电时间进行积分来产生电流反馈信号。积分器的时间常数与开关频率相关，因此电流反馈信号与功率转换器的输出电流成比例。 PWM电路响应于电压环路误差放大器和电流环路误差放大器的输出来控制开关信号的脉冲宽度。因此调节功率转换器的输出电压和最大输出电流。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式