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81. 发明申请

US20070159856A1 Flyback power converter with split primary winding transformer 审中-公开
标题翻译：具有分离初级绕组变压器的反激式功率转换器
公开(公告)号：US20070159856A1
公开(公告)日：2007-07-12
申请号：US11329136
申请日：2006-01-11
申请人： Ta-Yung Yang
发明人： Ta-Yung Yang
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M1/44 , H02M2001/0006 , Y02B70/1433
摘要： A flyback power converter includes a transformer having a first primary winding and a second primary winding. The first primary winding is coupled to the positive supply rail. The second primary winding is coupled to the negative supply rail. A transistor is connected in between the first primary winding and the second primary winding for switching the transformer. A control circuit is coupled to the transistor and the second primary winding to generate a switching signal for switching the transistor and regulating the output of the flyback power converter. A supplied capacitor is connected to the control circuit to supply the power to the control circuit. The second primary winding has a leakage inductor to store a stored energy when the transistor is on. A diode is coupled from the negative supply rail to the supplied capacitor. The stored energy of the leakage inductor is discharged to the supplied capacitor through the diode once the transistor is off. The split primary winding of the transformer improves the efficiency and reduces the EMI.
摘要翻译：反激式功率转换器包括具有第一初级绕组和第二初级绕组的变压器。第一初级绕组耦合到正电源轨。第二初级绕组耦合到负电源轨。晶体管连接在第一初级绕组和第二初级绕组之间，用于切换变压器。控制电路耦合到晶体管和第二初级绕组，以产生用于切换晶体管并调节反激式功率转换器的输出的开关信号。所提供的电容器连接到控制电路以向控制电路供电。当晶体管导通时，第二初级绕组具有漏电感器以存储存储的能量。二极管从负电源轨耦合到所提供的电容器。一旦晶体管关断，漏电感器的存储能量通过二极管放电到提供的电容器。变压器的分离初级绕组提高了效率并降低了EMI。

82. 发明申请

US20070109821A1 CONTROLLER FOR REGULATING OUTPUT CURRENT AT THE PRIMARY SIDE OF A POWER SUPPLY 有权
标题翻译：用于调节电源主端的输出电流的控制器
公开(公告)号：US20070109821A1
公开(公告)日：2007-05-17
申请号：US11280232
申请日：2005-11-17
申请人： Ta-Yung Yang
发明人： Ta-Yung Yang
IPC分类号： H02M3/335
CPC分类号： H02M3/33523
摘要： A controller controlling the output current at the primary side of a power supply is provided. A waveform detector generates a current-waveform signal. A second control circuit generates an oscillation signal for determining the switching frequency of a switching signal. An integrator generates an integrated signal by integrating an average current signal with a time signal. The average current signal is generated in response to the current-waveform signal. The time signal is generated in accordance with said oscillation signal. The time constant of the integrator is correlated with the switching period of the switching signal, therefore the integrated signal is proportional to the output current. A first control circuit generates the switching signal in correlated with the integrated signal, the oscillation signal and a reference voltage. Wherein the first control circuit controls the pulse width of the switching signal. Therefore, the output current of the power supply can be regulated.
摘要翻译：提供控制电源初级侧的输出电流的控制器。波形检测器产生电流波形信号。第二控制电路产生用于确定开关信号的开关频率的振荡信号。积分器通过将平均电流信号与时间信号进行积分来产生积分信号。响应于电流波形信号产生平均电流信号。根据所述振荡信号产生时间信号。积分器的时间常数与开关信号的开关周期相关，因此积分信号与输出电流成正比。第一控制电路产生与积分信号，振荡信号和参考电压相关的开关信号。其中第一控制电路控制开关信号的脉冲宽度。因此，可以调节电源的输出电流。

83. 发明申请

US20070103095A1 SWITCHING LED DRIVER WITH TEMPERATURE COMPENSATION TO PROGRAM LED CURRENT 有权
标题翻译：切换LED驱动器，温度补偿程序LED电流
公开(公告)号：US20070103095A1
公开(公告)日：2007-05-10
申请号：US11268536
申请日：2005-11-08
申请人： Ta-Yung Yang
发明人： Ta-Yung Yang
IPC分类号： H05B39/00
CPC分类号： H05B33/0854 , H05B33/0815
摘要： The present invention provides a LED driver for control the brightness of the LED. An energy-transferred element and a switch are connected in series with the LED for controlling the current of the LED. A diode is coupled to the energy-transferred element for freewheeling the energy of the energy-transferred element through the LED. A control circuit is developed to generate a control signal for switching the switch in response to the LED current. The LED current is further adjusted in response to a voltage signal of the LED. The value of the voltage signal is correlated to the LED temperature. Therefore the LED current can be programmed in accordance with the LED temperature.
摘要翻译：本发明提供一种用于控制LED的亮度的LED驱动器。能量传递元件和开关与LED串联连接以控制LED的电流。二极管耦合到能量转移元件，用于通过LED续飞能量转移元件的能量。开发控制电路以产生响应于LED电流来切换开关的控制信号。响应于LED的电压信号进一步调整LED电流。电压信号的值与LED温度相关。因此，LED电流可以根据LED温度进行编程。

84. 发明申请

US20060256590A1 OVER-VOLTAGE PROTECTION CIRCUIT FOR POWER CONVERTER 有权
标题翻译：电源转换器的过电压保护电路
公开(公告)号：US20060256590A1
公开(公告)日：2006-11-16
申请号：US11293094
申请日：2005-12-05
申请人： Ta-Yung Yang
发明人： Ta-Yung Yang
IPC分类号： H02H7/122
CPC分类号： H02M3/33507 , H02H7/122 , H02M1/32
摘要： The present invention proposes an over-voltage protection apparatus for a power converter. The over-voltage protection apparatus has an oscillator outputting a clock signal. Simultaneously, by comparing a sense signal with a threshold signal, an over-voltage comparative unit outputs a protection signal to an accumulating trigger unit. Next, the accumulating trigger unit is accumulating and counting the protection signal in response to the clock signal. The accumulating trigger unit further outputs an off signal to a latch unit as a period of the protection signal reaches a predetermined clock count. In response to the off signal, the latch unit outputs a latch signal to a driving output unit for disabling a switching signal to a power switch. Therefore, the power switch is turned off, and the object of the over-voltage protection can be accomplished.
摘要翻译：本发明提出了一种用于功率转换器的过电压保护装置。过电压保护装置具有输出时钟信号的振荡器。同时，通过将感测信号与阈值信号进行比较，过电压比较单元向保存的触发单元输出保护信号。接下来，累积触发单元响应于时钟信号积累并对保护信号进行计数。累积触发单元还在保护信号达到预定时钟计数的周期时向锁存单元输出关闭信号。响应于关闭信号，锁存单元将锁存信号输出到驱动输出单元，用于禁止对电源开关的切换信号。因此，关闭电源开关，可以实现过电压保护的目的。

85. 发明申请

US20050128773A1 Apparatus for reducing the power consumption of a PFC-PWM power converter 有权
公开(公告)号：US20050128773A1
公开(公告)日：2005-06-16
申请号：US10737557
申请日：2003-12-15
申请人： Ta-Yung Yang , Cheng-Chi Hsueh
发明人： Ta-Yung Yang , Cheng-Chi Hsueh
IPC分类号： G05F1/10 , H02M1/42 , H02M3/28 , H02M3/335 , H02M7/00
CPC分类号： H02M1/4208 , H02M2001/0025 , H02M2001/0032 , Y02B70/126 , Y02B70/16 , Y02P80/112
摘要： An apparatus for reducing the power consumption of a PFC-PWM power converter is described. The apparatus includes a control terminal used to detect a line-input voltage and to control a PFC signal and a PWM signal. The apparatus further includes a PFC power-manager and a PWM power-manager. The PFC power-manager of the PFC controller determines a PFC-reference voltage for an error amplifier of the PFC controller. The PFC-reference voltage is generated in response to the voltage at the control terminal. The PFC power-manager will disable the PFC signal whenever the voltage at the control terminal drops below a low-voltage threshold voltage. The PWM power-manager will disable the PWM signal whenever the voltage at the control terminal drops below a programmable threshold voltage. Furthermore, the PWM power-manager will pull the voltage at the control terminal low to disable the PFC circuitry during light-load and zero-load conditions.

86. 发明申请

US20050099164A1 PFC-PWM CONTROLLER HAVING INTERLEAVED SWITCHING 有权
标题翻译：具有互换开关的PFC-PWM控制器
公开(公告)号：US20050099164A1
公开(公告)日：2005-05-12
申请号：US10712274
申请日：2003-11-12
申请人： Ta-Yung Yang
发明人： Ta-Yung Yang
IPC分类号： G05F1/40 , G05F1/44 , H02M1/00 , H02M1/42 , H02M3/00
CPC分类号： H02M1/4225 , H02M2001/0032 , H02M2001/007 , Y02B70/126 , Y02B70/16 , Y02P80/112
摘要： The present invention discloses a PFC-PWM controller having interleaved switching. A PFC stage generates a PFC signal for switching a PFC boost converter of a power converter. A PWM stage generates a PWM signal for switching a DC-to-DC converter of the power converter. The PFC-PWM controller includes a power manager for generating a discharge current and a burst-signal. Under light-load conditions, the discharge current decreases in proportion to a load of the power converter. The burst signal is utilized to disable the PFC signal in a suspended condition for power saving. A pulse width of the pulse-signal ensures a dead time to spread switching signals, such as the PFC and PWM signals, and reduces switching noise. When the discharge current decreases, the pulse width of the pulse-signal will increase and a frequency of the pulse-signal will decrease correspondingly. This further reduces power consumption under light-load and zero-load conditions.
摘要翻译：本发明公开了一种具有交错切换的PFC-PWM控制器。 PFC级产生用于切换功率转换器的PFC升压转换器的PFC信号。 PWM级产生用于切换功率转换器的DC-DC转换器的PWM信号。 PFC-PWM控制器包括用于产生放电电流和突发信号的功率管理器。在轻负载条件下，放电电流与功率转换器的负载成比例地下降。脉冲串信号用于禁用处于暂停状态的PFC信号以节省功率。脉冲信号的脉冲宽度确保了扩展切换信号（如PFC和PWM信号）的死区时间，并降低了开关噪声。当放电电流减小时，脉冲信号的脉冲宽度将增加，脉冲信号的频率将相应减小。这进一步降低了轻负载和零负载条件下的功耗。

87. 发明申请

US20050057234A1 LOW DROP-OUT VOLTAGE REGULATOR AND AN ADAPTIVE FREQUENCY COMPENSATION METHOD FOR THE SAME 失效
标题翻译：低压降稳压器及其自适应频率补偿方法
公开(公告)号：US20050057234A1
公开(公告)日：2005-03-17
申请号：US10666803
申请日：2003-09-17
申请人： Ta-Yung Yang , Hsuan-I Pan , Chern-Lin Chen
发明人： Ta-Yung Yang , Hsuan-I Pan , Chern-Lin Chen
IPC分类号： G05F1/575 , G05F3/26 , G05F1/40
CPC分类号： G05F1/575 , G05F3/262
摘要： A method and apparatus to dynamically modify the internal compensation of a low drop-out (LDO) voltage regulator is presented. The process involves creating an additional equivalent series resistance (ESR) from an internal circuit. The additional ESR of the internal circuit is sufficient to ensure the DC output stability. This allows the ESR of the output capacitance to be reduced to zero if desired, for improved transient response.
摘要翻译：提出了一种动态修改低压差（LDO）稳压器内部补偿的方法和装置。该过程涉及从内部电路产生额外的等效串联电阻（ESR）。内部电路的额外ESR足以确保直流输出稳定。如果需要，这允许输出电容的ESR减小到零，以改善瞬态响应。

88. 发明申请

US20050007088A1 PFC-PWM CONTROLLER HAVING A POWER SAVING MEANS 有权
标题翻译：具有省电功能的PFC-PWM控制器
公开(公告)号：US20050007088A1
公开(公告)日：2005-01-13
申请号：US10617516
申请日：2003-07-10
申请人： Ta-Yung Yang , Jenn-Yu Lin , Chern-Lin Chen
发明人： Ta-Yung Yang , Jenn-Yu Lin , Chern-Lin Chen
IPC分类号： H02M1/00 , H02M1/42 , G05F1/40
CPC分类号： H02M1/4225 , H02M2001/0032 , H02M2001/007 , Y02B70/126 , Y02B70/16
摘要： A PFC-PWM controller with a power saving means is disclosed. A built-in current synthesizer generates a bias current in response to feedback voltages sampled from the PWM circuit and the PFC circuit. The bias current modulates the oscillation frequency to further reduce the switching frequencies of the PWM signal and the PFC signal under light-load and zero-load conditions. Thus, power consumption is greatly reduced. The PFC and the PWM switching signals interleave each other, so that power can be transferred more smoothly from the PFC circuit to the PWM circuit. The saturation of the switching components can be avoided by limiting the maximum on-time of the PWM signal. Further, an external resistor is used to start up the PFC-PWM controller and to provide an AC template signal for PFC control.
摘要翻译：公开了具有省电装置的PFC-PWM控制器。内置电流合成器响应于从PWM电路和PFC电路采样的反馈电压产生偏置电流。偏置电流调制振荡频率，以进一步降低轻载和零负载条件下PWM信号和PFC信号的开关频率。因此，功耗大大降低。 PFC和PWM开关信号彼此交错，使得功率可以从PFC电路更平稳地传输到PWM电路。通过限制PWM信号的最大导通时间可以避免开关元件的饱和。此外，外部电阻用于启动PFC-PWM控制器，并提供用于PFC控制的AC模板信号。

89. 发明授权

US09077258B2 Regulation circuit associated with synchronous rectifier providing cable compensation for the power converter and method thereof 有权
标题翻译：与同步整流器相关联的调节电路为功率转换器提供电缆补偿及其方法
公开(公告)号：US09077258B2
公开(公告)日：2015-07-07
申请号：US13551705
申请日：2012-07-18
申请人： Ta-Yung Yang , Chou-Sheng Wang
发明人： Ta-Yung Yang , Chou-Sheng Wang
IPC分类号： H02M3/335 , H02M1/00
CPC分类号： G05F1/575 , H02M3/33592 , H02M2001/0025 , Y02B70/1475
摘要： A regulation circuit of a power converter for cable compensation according to the present invention comprises a signal generator generating a compensation signal in accordance with a synchronous rectifying signal. An error amplifier has a reference signal for generating a feedback signal in accordance with an output voltage of the power converter. The compensation signal is coupled to program the reference signal. The feedback signal is coupled to generate a switching signal for regulating an output of the power converter. The regulation circuit of the present invention compensates the output voltage without a shunt resistor to sense the output current of the power converter for reducing power loss.
摘要翻译：根据本发明的用于电缆补偿的功率转换器的调节电路包括根据同步整流信号产生补偿信号的信号发生器。误差放大器具有用于根据功率转换器的输出电压产生反馈信号的参考信号。该补偿信号被耦合以对参考信号进行编程。反馈信号被耦合以产生用于调节功率转换器的输出的开关信号。本发明的调节电路在没有分流电阻的情况下补偿输出电压，以感测功率转换器的输出电流以降低功率损耗。

90. 发明授权

US08729828B2 Integrated circuit controller for ballast 有权
标题翻译：用于镇流器的集成电路控制器
公开(公告)号：US08729828B2
公开(公告)日：2014-05-20
申请号：US11763728
申请日：2007-06-15
申请人： Gwo-Hwa Wang , Jea-Sen Lin , Ta-Yung Yang
发明人： Gwo-Hwa Wang , Jea-Sen Lin , Ta-Yung Yang
IPC分类号： H05B37/02
CPC分类号： H05B41/2828 , Y02B20/186 , Y02B20/188
摘要： The present invention provides an integrated circuit controller for ballast with preheat/repreheat filament and ignition time control. A charge/discharge circuit is connected to a capacitor to provide the charge/discharge path for the capacitor. It charges when integrated circuit controller without errors and discharges when error occurred during lamp operation or power tripped. A control circuit is coupled to the charge/discharge circuit to control the charge/discharge circuit to charge or discharge the capacitor. A compare circuit is coupled to the charge/discharge circuit to compare a voltage signal on the capacitor from the charge/discharge circuit with threshold voltages for timing control and providing a preheat signal and an ignition signal. A control logic circuit is coupled to the control circuit to control the control circuit and coupled to the compare circuit to receive the preheat signal and the ignition signal for preheating the filament and igniting the lamp. The control logic circuit further receives a feedback voltage for over voltage protect. Once the feedback voltage is over its threshold voltage in the control logic circuit, the control logic circuit controls the control circuit for discharging the capacitor.
摘要翻译：本发明提供一种用于具有预热/再热丝灯和点火时间控制的镇流器的集成电路控制器。充电/放电电路连接到电容器以提供电容器的充电/放电路径。当灯管运行或电源跳闸时发生错误时，集成电路控制器无错误充放电。控制电路耦合到充电/放电电路以控制充电/放电电路对电容器进行充电或放电。比较电路耦合到充电/放电电路，以将来自充电/放电电路的电容器上的电压信号与用于定时控制的阈值电压进行比较，并提供预热信号和点火信号。控制逻辑电路耦合到控制电路以控制控制电路并且耦合到比较电路以接收预热信号和点火信号以预热灯丝并点燃灯。控制逻辑电路还接收过电压保护的反馈电压。一旦反馈电压超过控制逻辑电路中的阈值电压，控制逻辑电路控制用于放电电容器的控制电路。

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