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

US20120112645A1 FEEDBACK CONTROL CIRCUIT AND LED DRIVING CIRCUIT 有权
标题翻译：反馈控制电路和LED驱动电路
公开(公告)号：US20120112645A1
公开(公告)日：2012-05-10
申请号：US13218405
申请日：2011-08-25
申请人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Hai-Po Li
发明人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Hai-Po Li
IPC分类号： H05B37/02
CPC分类号： H05B33/0818 , H05B33/0824 , H05B33/0827 , Y02B20/346
摘要： The present invention provides a feedback control circuit and an LED driving circuit for using the same, wherein the feedback control circuit receives a dimming signal. The dimming signal is changed between a first state and a second state. When being in the first state, the feedback control circuit controls a converter circuit to drive the LED module for lighting stably. When being in the second state, the feedback control circuit controls the converter circuit to maintain the power conversion of the converter circuit to have an output voltage outputted by the converter circuit maintained at a level close to a lighting threshold voltage of the LED module.
摘要翻译：本发明提供一种反馈控制电路和使用该反馈控制电路的LED驱动电路，其中反馈控制电路接收调光信号。调光信号在第一状态和第二状态之间改变。当处于第一状态时，反馈控制电路控制转换器电路以驱动LED模块以稳定点亮。当处于第二状态时，反馈控制电路控制转换器电路以维持转换器电路的功率转换，使转换器电路输出的输出电压保持在接近LED模块的点亮阈值电压的水平。

2. 发明申请

US20110109231A1 LED CURRENT CONTROL CIRCUIT, CURRENT BALANCER AND DRIVING APPARATUS 有权
标题翻译： LED电流控制电路，电流平衡和驱动装置
公开(公告)号：US20110109231A1
公开(公告)日：2011-05-12
申请号：US12826699
申请日：2010-06-30
申请人： Shian-Sung Shiu , Li-Min Lee , Chung-Che Yu , Hai-Po Li
发明人： Shian-Sung Shiu , Li-Min Lee , Chung-Che Yu , Hai-Po Li
IPC分类号： H05B37/02
CPC分类号： H05B33/0887 , H05B33/0827 , H05B33/0866 , Y02B20/341
摘要： An LED current control circuit including a current adjusting unit, a detecting unit, and a current control unit is provided. The current adjusting unit has a current control end coupled to an LED string for determining an amount of current flowing through the LED string according to a current control signal. The detecting unit detects the current control end and determines whether to generate a protecting signal according to a protecting voltage value. The current control unit generates the current control signal to control the amount of current flowing through the LED string of and determines whether to stop the current flowing through the LED string according to the protecting signal.
摘要翻译：提供了包括电流调节单元，检测单元和电流控制单元的LED电流控制电路。电流调节单元具有耦合到LED串的电流控制端，用于根据电流控制信号确定流过LED串的电流量。检测单元检测电流控制端，并根据保护电压值确定是否产生保护信号。电流控制单元产生电流控制信号以控制流过LED串的电流量，并根据保护信号确定是否停止流经LED串的电流。

3. 发明授权

US08358084B2 LED current control circuit, current balancer and driving apparatus 有权
标题翻译： LED电流控制电路，电流平衡器和驱动装置
公开(公告)号：US08358084B2
公开(公告)日：2013-01-22
申请号：US12826699
申请日：2010-06-30
申请人： Shian-Sung Shiu , Li-Min Lee , Chung-Che Yu , Hai-Po Li
发明人： Shian-Sung Shiu , Li-Min Lee , Chung-Che Yu , Hai-Po Li
IPC分类号： G05F1/00 , H05B37/02 , H05B39/04 , H05B41/36
CPC分类号： H05B33/0887 , H05B33/0827 , H05B33/0866 , Y02B20/341
摘要： An LED current control circuit including a current adjusting unit, a detecting unit, and a current control unit is provided. The current adjusting unit has a current control end coupled to an LED string for determining an amount of current flowing through the LED string according to a current control signal. The detecting unit detects the current control end and determines whether to generate a protecting signal according to a protecting voltage value. The current control unit generates the current control signal to control the amount of current flowing through the LED string of and determines whether to stop the current flowing through the LED string according to the protecting signal.
摘要翻译：提供了包括电流调节单元，检测单元和电流控制单元的LED电流控制电路。电流调节单元具有耦合到LED串的电流控制端，用于根据电流控制信号确定流过LED串的电流量。检测单元检测电流控制端，并根据保护电压值确定是否产生保护信号。电流控制单元产生电流控制信号以控制流过LED串的电流量，并根据保护信号确定是否停止流经LED串的电流。

4. 发明授权

US08664893B2 Feedback control circuit and LED driving circuit 有权
标题翻译：反馈控制电路和LED驱动电路
公开(公告)号：US08664893B2
公开(公告)日：2014-03-04
申请号：US13218405
申请日：2011-08-25
申请人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Hai-Po Li
发明人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Hai-Po Li
IPC分类号： H05B37/02
CPC分类号： H05B33/0818 , H05B33/0824 , H05B33/0827 , Y02B20/346
摘要： The present invention provides a feedback control circuit and an LED driving circuit for using the same, wherein the feedback control circuit receives a dimming signal. The dimming signal is changed between a first state and a second state. When being in the first state, the feedback control circuit controls a converter circuit to drive the LED module for lighting stably. When being in the second state, the feedback control circuit controls the converter circuit to maintain the power conversion of the converter circuit to have an output voltage outputted by the converter circuit maintained at a level close to a lighting threshold voltage of the LED module.
摘要翻译：本发明提供一种反馈控制电路和使用该反馈控制电路的LED驱动电路，其中反馈控制电路接收调光信号。调光信号在第一状态和第二状态之间改变。当处于第一状态时，反馈控制电路控制转换器电路以驱动LED模块以稳定点亮。当处于第二状态时，反馈控制电路控制转换器电路以维持转换器电路的功率转换，使转换器电路输出的输出电压保持在接近LED模块的点亮阈值电压的水平。

5. 发明授权

US09035560B2 LED driving control circuit and LED driving circuit 有权
标题翻译： LED驱动控制电路和LED驱动电路
公开(公告)号：US09035560B2
公开(公告)日：2015-05-19
申请号：US13348628
申请日：2012-01-11
申请人： Hai-Po Li , Shian-Sung Shiu , Li-Min Lee
发明人： Hai-Po Li , Shian-Sung Shiu , Li-Min Lee
IPC分类号： H05B37/00 , H05B39/00 , H05B41/00 , H05B33/08
CPC分类号： H05B33/0845 , H05B33/0815 , H05B33/0818 , H05B33/0827
摘要： The present invention provides an LED (Light-Emitting Diode) driving control circuit for controlling a converting circuit to transform an input power source into an output voltage for driving an LED module. The LED module has a plurality of LED strings. The LED driving control circuit includes a voltage detecting circuit and a feedback control circuit. The voltage detecting circuit has a plurality of detection circuits, and each detection circuit is coupled to a terminal of the corresponding LED string to determine whether a voltage of the terminal is higher or lower than a preset value. The voltage detecting circuit generates a feedback signal according to the determination results. The feedback control circuit controls the converting circuit to modulate the output voltage according to the feedback signal.
摘要翻译：本发明提供一种LED（发光二极管）驱动控制电路，用于控制转换电路以将输入电源变换为用于驱动LED模块的输出电压。 LED模块具有多个LED串。 LED驱动控制电路包括电压检测电路和反馈控制电路。电压检测电路具有多个检测电路，并且每个检测电路耦合到相应LED串的端子，以确定端子的电压是否高于或低于预设值。电压检测电路根据判定结果生成反馈信号。反馈控制电路根据反馈信号控制转换电路来调制输出电压。

6. 发明授权

US08664884B2 LED driving circuit and feedback control circuit thereof 有权
标题翻译： LED驱动电路及其反馈控制电路
公开(公告)号：US08664884B2
公开(公告)日：2014-03-04
申请号：US13241299
申请日：2011-09-23
申请人： Hai-Po Li , Shian-Sung Shiu , Li-Min Lee
发明人： Hai-Po Li , Shian-Sung Shiu , Li-Min Lee
IPC分类号： G05F1/00
CPC分类号： H05B33/0815 , H05B33/0818 , H05B33/0827 , H05B33/0845 , Y02B20/346
摘要： An LED (Light-Emitting Diode) driving circuit to drive an LED module is provided. The LED driving circuit includes a converting circuit and a feedback control circuit. The converting circuit is coupled to the LED module, and converts an input voltage into an output voltage according to at least one control signal. The feedback control circuit generates the control signal to control the converting circuit to perform voltage conversion according to a feedback signal. In addition, the feedback control circuit receives a dimming signal, and is operated in a first state or a second state in response to the dimming signal, wherein the feedback control circuit adjusts the duty cycle of the control signal to have the duty cycle larger than or equal to a predetermined duty cycle in a predetermined period right after the feedback control circuit is operated from the second state to the first state.
摘要翻译：提供了用于驱动LED模块的LED（发光二极管）驱动电路。 LED驱动电路包括转换电路和反馈控制电路。转换电路耦合到LED模块，并根据至少一个控制信号将输入电压转换成输出电压。反馈控制电路产生控制信号以根据反馈信号控制转换电路进行电压转换。此外，反馈控制电路接收调光信号，并响应于调光信号而在第一状态或第二状态下操作，其中反馈控制电路调节控制信号的占空比以使占空比大于或等于在反馈控制电路从第二状态操作到第一状态之后的预定周期内的预定占空比。

7. 发明授权

US08138685B2 Power converting circuit and controller thereof 有权
标题翻译：电力转换电路及其控制器
公开(公告)号：US08138685B2
公开(公告)日：2012-03-20
申请号：US12539624
申请日：2009-08-12
申请人： Chung-Che Yu , Shian-Sung Shiu , Hai-Po Li
发明人： Chung-Che Yu , Shian-Sung Shiu , Hai-Po Li
IPC分类号： G05F1/00 , H05B37/02 , H05B39/04 , H05B41/36
CPC分类号： H02M1/36 , H05B33/0887 , H05B41/2983 , Y10S315/05
摘要： A controller which receives electric power required for operating through a driving voltage terminal and controls a converting circuit to convert an input voltage into an output voltage is provided. The controller is latched to stop providing a part or all of functions until the input voltage is removed. Therefore, the issues of the converting circuit in related arts in shortened life-span and safety of users due to can be avoided in the present invention.
摘要翻译：提供一种控制器，其接收通过驱动电压端子操作所需的电力并控制转换电路将输入电压转换为输出电压。控制器被锁定以停止提供部分或全部功能，直到输入电压被去除。因此，在本发明中可以避免相关技术中的转换电路在缩短使用寿命和安全性方面的问题。

8. 发明申请

US20100315017A1 POWER CONVERTING CIRCUIT AND CONTROLLER THEREOF 有权
标题翻译：电源转换电路及其控制器
公开(公告)号：US20100315017A1
公开(公告)日：2010-12-16
申请号：US12539624
申请日：2009-08-12
申请人： Chung-Che Yu , Shian-Sung Shiu , Hai-Po Li
发明人： Chung-Che Yu , Shian-Sung Shiu , Hai-Po Li
IPC分类号： H05B41/36 , G05F1/10 , H02M7/537
CPC分类号： H02M1/36 , H05B33/0887 , H05B41/2983 , Y10S315/05
摘要： A controller which receives electric power required for operating through a driving voltage terminal and controls a converting circuit to convert an input voltage into an output voltage is provided. The controller is latched to stop providing a part or all of functions until the input voltage is removed. Therefore, the issues of the converting circuit in related arts in shortened life-span and safety of users due to can be avoided in the present invention.
摘要翻译：提供一种控制器，其接收通过驱动电压端子操作所需的电力并控制转换电路将输入电压转换为输出电压。控制器被锁定以停止提供部分或全部功能，直到输入电压被去除。因此，在本发明中可以避免相关技术中的转换电路在缩短使用寿命和安全性方面的问题。

9. 发明授权

US08971059B2 Resonant converting circuit and resonant controller 有权
标题翻译：谐振转换电路和谐振控制器
公开(公告)号：US08971059B2
公开(公告)日：2015-03-03
申请号：US13447285
申请日：2012-04-16
申请人： Ke Peng , Li-Min Lee , Chung-Che Yu , Shian-Sung Shiu
发明人： Ke Peng , Li-Min Lee , Chung-Che Yu , Shian-Sung Shiu
IPC分类号： H02M3/335 , H02H7/10 , H02M1/36 , H02M3/337 , H02M1/00
CPC分类号： H02H7/10 , H02M1/36 , H02M3/335 , H02M3/3376 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491 , Y02P80/112
摘要： A current detecting circuit detects a resonant current in a primary side of a resonant converting circuit to generate a current detecting signal. An output detecting circuit generates a feedback signal according to the output voltage. A resonant controller generates a clock signal and adjusts an operating frequency of the clock signal in response to the feedback signal for modulating the output voltage of the resonant circuit. The resonant controller includes a resonance deviation protection unit which detects the current detecting signal according to a phase of the clock signal to determine whether the resonant circuit enters a region of zero current switching or not. When the resonant circuit enters the region of zero current switching, the resonant controller executes a corresponding protection process in response to that the resonant controller operates in a starting mode or a normal operating mode.
摘要翻译：电流检测电路检测谐振转换电路的初级侧的谐振电流以产生电流检测信号。输出检测电路根据输出电压产生反馈信号。谐振控制器响应于用于调制谐振电路的输出电压的反馈信号而产生时钟信号并调整时钟信号的工作频率。谐振控制器包括谐振偏差保护单元，其根据时钟信号的相位检测电流检测信号，以确定谐振电路是否进入零电流切换的区域。当谐振电路进入零电流切换区域时，谐振控制器响应于谐振控制器在启动模式或正常工作模式下运行而执行相应的保护处理。

10. 发明申请

US20140062428A1 FEEDBACK DETECTION CIRCUIT 审中-公开
标题翻译：反馈检测电路
公开(公告)号：US20140062428A1
公开(公告)日：2014-03-06
申请号：US13604635
申请日：2012-09-06
申请人： Shian-Sung Shiu , Ke Peng , Li-Min Lee , Ying Wang , Yong Huang
发明人： Shian-Sung Shiu , Ke Peng , Li-Min Lee , Ying Wang , Yong Huang
IPC分类号： G05F1/10
CPC分类号： H05B33/0848
摘要： Disclosed is a feedback detection circuit, adapted to provide a feedback detection signal wherein a converting circuit provides a driving power source to drive a load according to the feedback detection signal. The feedback detection circuit comprises an operational conversion circuit and a signal limitation circuit. The operational conversion circuit generates the feedback detection signal in response to a level of a detected node of the load. The operational conversion circuit has an operational amplifier, which modulates the level of the feedback detection signal in response to the level of the detected node. The signal limitation circuit is coupled to the operational conversion circuit for clamping a level rang of the feedback detection signal.
摘要翻译：公开了一种反馈检测电路，其适于提供反馈检测信号，其中转换电路根据反馈检测信号提供驱动电源来驱动负载。反馈检测电路包括操作转换电路和信号限制电路。操作转换电路响应于检测到的负载节点的电平而产生反馈检测信号。操作转换电路具有运算放大器，其响应于检测到的节点的电平来调制反馈检测信号的电平。信号限制电路耦合到操作转换电路，用于钳位反馈检测信号的电平。

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