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公开(公告)号：US07714551B2
公开(公告)日：2010-05-11
申请号：US11705090
申请日：2007-02-12
IPC分类号： G05F1/40
CPC分类号： G05F1/565
摘要： A linear voltage regulator comprises a transistor for converting a supply voltage to an output voltage. By directly monitoring the supply voltage and thereby rapidly responding when the supply voltage suffers a ripple, the linear voltage regulator enhances the stability of the output voltage.
摘要翻译： 线性稳压器包括用于将电源电压转换为输出电压的晶体管。 通过直接监控电源电压，从而在电源电压受到纹波时快速响应，线性稳压器可提高输出电压的稳定性。
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2.发明授权Load-dependent frequency jittering circuit and load-dependent frequency jittering method 有权负载相关的频率抖动电路和负载相关的频率抖动方法公开(公告)号：US07728571B2
公开(公告)日：2010-06-01
申请号：US11935558
申请日：2007-11-06
IPC分类号： G05F1/56
CPC分类号： H03K3/72
摘要： The present invention discloses a load-dependent frequency jittering circuit, comprising: a load condition detection circuit for receiving a switching signal and generating an output according to a load condition; a number generator for receiving the output of the load condition detection circuit and generating a number; a digital to analog converter for converting the output of the number generator to an analog signal; and an oscillator for generating a jittered frequency according to the output of the digital to analog converter.
摘要翻译： 本发明公开了一种负载相关的频率抖动电路，包括：负载状态检测电路，用于接收开关信号并根据负载条件产生输出; 数字发生器，用于接收负载状态检测电路的输出并产生一个数字; 用于将数字发生器的输出转换为模拟信号的数模转换器; 以及用于根据数模转换器的输出产生抖动频率的振荡器。
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公开(公告)号：US07570121B2
公开(公告)日：2009-08-04
申请号：US11821498
申请日：2007-06-25
IPC分类号： H03L7/00
摘要： A frequency jittering control circuit wherein by means of the characteristics of a PLL whose input switches between different frequencies, the output frequency of the PLL swings between the different frequencies to achieve the desired frequency jittering.
摘要翻译： 一种频率抖动控制电路，其中通过PLL的特性，其输入在不同频率之间切换，PLL的输出频率在不同频率之间摆动，以实现期望的频率抖动。
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公开(公告)号：US07535690B2
公开(公告)日：2009-05-19
申请号：US11518446
申请日：2006-09-11
摘要： For protecting a power system, two or three of over current, thermal and under voltage protection circuits are integrated as one protection circuit but operate independently, and one or more protection points thereof are adjusted dynamically in response to detected condition of the power system. Specifically, using voltage and current conditions in the power system to modify the over current protection and the thermal protection maximizes the performance of the power system and covers the process bias in the circuits.
摘要翻译： 为了保护电力系统，两个或三个过流，过热和欠压保护电路被集成为一个保护电路，但是独立操作，并且响应于电力系统的检测到的状态来动态地调整其一个或多个保护点。 具体来说，使用电力系统中的电压和电流条件修改过电流保护和热保护，最大限度地提高电力系统的性能，并覆盖电路中的过程偏置。
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公开(公告)号：US07907377B2
公开(公告)日：2011-03-15
申请号：US12318721
申请日：2009-01-07
摘要： For protecting a power system, two or three of over current, thermal and under voltage protection circuits are integrated as one protection circuit but operate independently, and one or more protection points thereof are adjusted dynamically in response to detected condition of the power system. Specifically, using voltage and current conditions in the power system to modify the over current protection and the thermal protection maximizes the performance of the power system and covers the process bias in the circuits.
摘要翻译： 为了保护电力系统，两个或三个过流，过热和欠压保护电路被集成为一个保护电路，但是独立操作，并且响应于电力系统的检测到的状态来动态地调整其一个或多个保护点。 具体来说，使用电力系统中的电压和电流条件修改过电流保护和热保护，最大限度地提高电力系统的性能，并覆盖电路中的过程偏置。
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6.发明申请Light-load efficiency improving method and apparatus for a flyback converter 有权用于反激式转换器的轻载效率改进方法和装置公开(公告)号：US20080298095A1
公开(公告)日：2008-12-04
申请号：US11882637
申请日：2007-08-03
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M2001/0025 , H02M2001/0032 , Y02B70/16
摘要： A flyback converter has a controller to switch a power switch so as to convert an input voltage to an output voltage for a load by monitoring an output voltage dependent signal and a current sensing signal derived from a current flowing through the power switch, a light-load efficiency improving apparatus monitors the load and a supply voltage provided for the controller to selectively clamp the output voltage dependent signal when the load is lower than a first threshold value and the supply voltage is lower than a second threshold value, so as to increase the supply voltage.
摘要翻译： 反激式转换器具有控制器，用于切换电源开关，以便通过监视输出电压相关信号和从流过电源开关的电流得到的电流感测信号将输入电压转换为负载的输出电压， 负载效率改善装置监视负载和为控制器提供的电源电压，以便在负载低于第一阈值并且电源电压低于第二阈值时选择性地钳位输出电压相关信号，从而增加 电源电压。
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公开(公告)号：US07991172B2
公开(公告)日：2011-08-02
申请号：US11755894
申请日：2007-05-31
申请人： Cheng-Hsuan Fan , Chao-Hsuan Chuang , Hung-Che Chou , Ching-Hsiang Yang , Shui-Mu Lin , Chih-Ping Tan
发明人： Cheng-Hsuan Fan , Chao-Hsuan Chuang , Hung-Che Chou , Ching-Hsiang Yang , Shui-Mu Lin , Chih-Ping Tan
IPC分类号： H03F99/00
CPC分类号： H03F3/45475 , H02M3/07 , H03F1/0211 , H03F3/187 , H03F2203/45136 , H03F2203/45166 , H04R2460/03
摘要： The present invention discloses a half-voltage headphone driver circuit, comprising: at least one operational amplifier providing an output to a headphone speaker, and a charge pump receiving a supply voltage (VDD), generating a positive half-voltage and a negative half-voltage (VDD/2 and −VDD/2) based on the supply voltage, and supplying the positive half-voltage and negative half-voltage as high and low operation levels to the at least one operational amplifier.
摘要翻译： 本发明公开了一种半电压耳机驱动电路，包括：向头戴式扬声器提供输出的至少一个运算放大器和接收电源电压（VDD）的电荷泵，产生正半电压和负半波电压， 基于电源电压提供电压（VDD / 2和-VDD / 2），并将正半电压和负半电压作为高和低操作电平提供给至少一个运算放大器。
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公开(公告)号：US20080298605A1
公开(公告)日：2008-12-04
申请号：US11755894
申请日：2007-05-31
申请人： Cheng-Hsuan Fan , Chao-Hsuan Chuang , Hung-Che Chou , Ching-Hsiang Yang , Shui-Mu Lin , Chih-Ping Tan
发明人： Cheng-Hsuan Fan , Chao-Hsuan Chuang , Hung-Che Chou , Ching-Hsiang Yang , Shui-Mu Lin , Chih-Ping Tan
IPC分类号： H04R1/10
CPC分类号： H03F3/45475 , H02M3/07 , H03F1/0211 , H03F3/187 , H03F2203/45136 , H03F2203/45166 , H04R2460/03
摘要： The present invention discloses a half-voltage headphone driver circuit, comprising: at least one operational amplifier providing an output to a headphone speaker, and a charge pump receiving a supply voltage (VDD), generating a positive half-voltage and a negative half-voltage (VDD/2 and −VDD/2) based on the supply voltage, and supplying the positive half-voltage and negative half-voltage as high and low operation levels to the at least one operational amplifier.
摘要翻译： 本发明公开了一种半电压耳机驱动电路，包括：向头戴式扬声器提供输出的至少一个运算放大器和接收电源电压（VDD）的电荷泵，产生正半电压和负半波电压， 基于电源电压提供电压（VDD / 2和-VDD / 2），并将正半电压和负半电压作为高和低操作电平提供给至少一个运算放大器。
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公开(公告)号：US20070188154A1
公开(公告)日：2007-08-16
申请号：US11705090
申请日：2007-02-12
IPC分类号： G05F1/00
CPC分类号： G05F1/565
摘要： A linear voltage regulator comprises a transistor for converting a supply voltage to an output voltage. By directly monitoring the supply voltage and thereby rapidly responding when the supply voltage suffers a ripple, the linear voltage regulator enhances the stability of the output voltage.
摘要翻译： 线性稳压器包括用于将电源电压转换为输出电压的晶体管。 通过直接监控电源电压，从而在电源电压受到纹波时快速响应，线性稳压器可提高输出电压的稳定性。
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10.发明授权公开(公告)号：US08373404B2
公开(公告)日：2013-02-12
申请号：US12591079
申请日：2009-11-06
CPC分类号： H02M3/33507 , H02M3/33523
摘要： A flyback voltage converter includes a transformer having a primary winding and a secondary winding, a switch serially connected to the primary winding for being switched to produce a current in the secondary winding, and a negative lock loop to adjust the peak value of the current in the secondary winding according to a current conduction time during which the current in the secondary winding is higher than a current threshold, such that the peak value of the current in the secondary winding will be in inverse proportion to the time.
摘要翻译： 回扫电压转换器包括具有初级绕组和次级绕组的变压器，串联连接到初级绕组的开关用于切换以产生次级绕组中的电流，以及负锁定环以调整电流的峰值 次级绕组根据次级绕组中的电流的电流导通时间高于电流阈值，使得次级绕组中的电流的峰值将与时间成反比。
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