公开(公告)号：US06812769B1

公开(公告)日：2004-11-02

申请号：US10640424

申请日：2003-08-12

Applicant: Ta-yung Yang ,  Jenn-yu G. Lin ,  Rui-Hong Lu

Inventor： Ta-yung Yang ,  Jenn-yu G. Lin ,  Rui-Hong Lu

IPC: G06G712

CPC classification number: G06G7/16 ,  Y02P80/112

Abstract: The switched charge multiplier-divider according to the present invention is constructed of CMOS devices. Capacitor charge theory is employed to implement the circuit of the switched charge multiplier-divider. The switched charge multiplier-divider includes an output capacitor and controls the voltage across the output capacitor, so that it is proportional to the product of the charge current and the charge-time interval. The switched charge multiplier-divider is ideal for use in the power factor correction (PFC) of switching mode power supplies. Potentially, it can also be applied to automatic gain control (AGC) circuits.

Abstract translation: 根据本发明的开关电荷倍增器分频器由CMOS器件构成。 采用电容充电理论来实现开关电荷分频器的电路。 开关电荷倍增器分压器包括输出电容器并控制输出电容器两端的电压，使其与充电电流和充电时间间隔的乘积成比例。 开关电荷乘法器分频器是开关电源功率因数校正（PFC）的理想选择。 潜在地，它也可以应用于自动增益控制（AGC）电路。

公开(公告)号：US06721192B1

公开(公告)日：2004-04-13

申请号：US10249214

申请日：2003-03-24

Applicant: Ta-yung Yang ,  Chern-Lin Chen ,  Jenn-yu G. Lin ,  Yi-Hsin Leu

Inventor： Ta-yung Yang ,  Chern-Lin Chen ,  Jenn-yu G. Lin ,  Yi-Hsin Leu

IPC: H02M3335

CPC classification number: H02M3/33507 ,  H01F2038/026 ,  H02M2001/0025

Abstract: A PWM controller according to the present invention provides a technique to control the output voltage and output current of the power supply without the feedback control circuit in the secondary side of the transformer. In order to achieve better regulation, an adaptive load and a feedback synthesizer are equipped into the PWM controller, which associated with the auxiliary winding of the transformer regulate the output voltage of the power supply as a constant. Furthermore, a programmable power limiter in the PWM controller controls the power that is delivered from the primary side to the output of the power supply. The threshold of the power limit is varied in accordance with the change of output voltage. Because the output power is the function of the output voltage of the power supply, a constant current output is realized when the output current of the power supply is greater than a maximum value.

Abstract translation: 根据本发明的PWM控制器提供了在变压器的次级侧没有反馈控制电路来控制电源的输出电压和输出电流的技术。 为了实现更好的调节，PWM控制器配备了自适应负载和反馈合成器，该控制器与变压器的辅助绕组相关联，将电源的输出电压调节为常数。 此外，PWM控制器中的可编程功率限制器控制从初级侧输出到电源输出的功率。 功率限制的阈值根据输出电压的变化而变化。 由于输出功率是电源输出电压的函数，当电源的输出电流大于最大值时，可实现恒流输出。

公开(公告)号：US06326911B1

公开(公告)日：2001-12-04

申请号：US09186559

申请日：1998-11-05

Applicant: Gabriel J. Gomez ,  Jenn-Yu G. Lin

Inventor： Gabriel J. Gomez ,  Jenn-Yu G. Lin

IPC: H03M300

CPC classification number: H03M3/33 ,  H03M3/424

Abstract: A method and apparatus for dithering idle channel tones in delta-sigma converters is provided. In a delta-sigma modulator (10), random dither signal (23) is added before quantizing a signal in order to attenuate the idle channel tones. A random number generator (50) coupled to a digital-to-analog converter (52) with an applied biasing current (54) produces the dither signal (23). The dither signal (23) combines with an input signal at the input of a quantizer (14) in order to randomly change the quantizer output (15) and attenuate idle channel tones.

Abstract translation: 提供了一种用于在Δ-Σ转换器中抖动空闲信道音调的方法和装置。 在Δ-Σ调制器（10）中，在量化信号之前添加随机抖动信号（23）以衰减空闲信道音调。 利用施加的偏置电流（54）耦合到数模转换器（52）的随机数发生器（50）产生抖动信号（23）。 抖动信号（23）与量化器（14）的输入处的输入信号组合，以随机地改变量化器输出（15）并衰减空闲信道音调。

公开(公告)号：US08559196B2

公开(公告)日：2013-10-15

申请号：US12720096

申请日：2010-03-09

Applicant: Ta-Yung Yang ,  Wei-Hsuan Huang ,  Chuh-Ching Li ,  Rui-Hong Lu ,  Jenn-Yu G. Lin

Inventor： Ta-Yung Yang ,  Wei-Hsuan Huang ,  Chuh-Ching Li ,  Rui-Hong Lu ,  Jenn-Yu G. Lin

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A control circuit of a power converter for light-load power saving according to the present invention comprises a first feedback circuit coupled to an output voltage of the power converter to receive a first feedback signal. A second feedback circuit is coupled to the output voltage to receive a second feedback signal. A control circuit generates a switching signal for switching a transformer of the power converter and regulating the output voltage of the power converter in response to the first feedback signal and the second feedback signal. The switching signal is generated in accordance with the first feedback signal when an output load is high. The switching signal is generated in accordance with the second feedback signal during a light-load condition.

Abstract translation: 根据本发明的用于轻载省电的功率转换器的控制电路包括耦合到功率转换器的输出电压的第一反馈电路以接收第一反馈信号。 第二反馈电路耦合到输出电压以接收第二反馈信号。 控制电路响应于第一反馈信号和第二反馈信号产生用于切换功率转换器的变压器的开关信号并调节功率转换器的输出电压。 当输出负载高时，根据第一反馈信号产生开关信号。 在轻负载状态期间根据第二反馈信号产生开关信号。

公开(公告)号：US20110116287A1

公开(公告)日：2011-05-19

申请号：US13012800

申请日：2011-01-25

Applicant: Wei-Hsuan Huang ,  Jenn-Yu G. Lin ,  Ta-Yung Yang

Inventor： Wei-Hsuan Huang ,  Jenn-Yu G. Lin ,  Ta-Yung Yang

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M1/44

Abstract: A switching controller having switching frequency hopping for a power converter includes an oscillator generating a pulse signal for determining a switching frequency of a switching signal, a maximum duty-cycle circuit generating a maximum duty-cycle signal in response to the switching signal for determining the switching frequency of the switching signal, a pattern generator generating a digital pattern code in response to a clock signal, a programmable capacitor coupled to the pattern generator and the oscillator for modulating the switching frequency of the switching signal in response to the digital pattern code, and a PWM circuit coupled to the oscillator and the maximum duty-cycle circuit for generating the switching signal in accordance with the pulse signal and the maximum duty-cycle signal. A maximum on-time of the switching signal is limited by the maximum duty-cycle signal. The switching signal is utilized to switch a transformer of the power converter.

Abstract translation: 具有用于功率转换器的开关跳频的开关控制器包括产生用于确定开关信号的开关频率的脉冲信号的振荡器，响应于用于确定开关频率的开关信号而产生最大占空比信号的最大占空比电路 切换信号的开关频率，响应于时钟信号产生数字图形代码的图形发生器，耦合到图形发生器的可编程电容器和用于响应于数字图形代码调制开关信号的开关频率的振荡器， 以及耦合到振荡器和最大占空比电路的PWM电路，用于根据脉冲信号和最大占空比信号产生开关信号。 开关信号的最大导通时间受到最大占空比信号的限制。 切换信号用于切换功率转换器的变压器。

公开(公告)号：US07858466B2

公开(公告)日：2010-12-28

申请号：US11682621

申请日：2007-03-06

Applicant: Chih-Feng Huang ,  Ta-yung Yang ,  Jenn-yu G. Lin ,  Tuo-Hsin Chien

Inventor： Chih-Feng Huang ,  Ta-yung Yang ,  Jenn-yu G. Lin ,  Tuo-Hsin Chien

IPC: H01L21/8238

CPC classification number: H01L21/823814 ,  H01L21/823857 ,  H01L21/823892

Abstract: A method of manufacturing different-voltage devices mainly comprises forming at least one high-voltage well in high-voltage device regions, at least one N-well in low-voltage device regions, at least one P-well in low-voltage device regions, source/drain wells in high-voltage device regions, and isolation wells in isolation regions in a p-type substrate. The breakdown voltage is adjusted by modulating the ion doping profile. Furthermore, parameters of implanting conductive ions are adjusted for implanting conductive ions into both high-voltage device regions and low-voltage device regions. The isolation wells formed in isolation regions between devices are for separating device formed over high-voltage device regions and device formed over low-voltage device regions. The thickness of a HV gate oxide layer is thicker than the thickness of an LV gate oxide layer for modulating threshold voltages of high-voltage devices and low-voltage devices.

Abstract translation: 一种制造不同电压装置的方法主要包括在高电压装置区域中形成至少一个高电压阱，在低电压装置区域中形成至少一个N阱，在低电压装置区域中形成至少一个P阱 ，高压器件区域中的源/漏极阱以及p型衬底中的隔离区中的隔离阱。 通过调制离子掺杂分布来调整击穿电压。 此外，调整注入导电离子的参数，以将导电离子注入到高电压器件区域和低电压器件区域中。 在器件之间的隔离区域中形成的隔离阱用于在高电压器件区域上形成的分离器件和在低电压器件区域上形成的器件。 HV栅极氧化物层的厚度比用于调制高电压器件和低电压器件的阈值电压的LV栅极氧化物层的厚度厚。

公开(公告)号：US07362593B2

公开(公告)日：2008-04-22

申请号：US10943668

申请日：2004-09-16

Applicant: Ta-yung Yang ,  Guo-Kiang Hung ,  Jenn-yu G. Lin ,  Chuh-Ching Li ,  Feng Cheng Tsao

Inventor： Ta-yung Yang ,  Guo-Kiang Hung ,  Jenn-yu G. Lin ,  Chuh-Ching Li ,  Feng Cheng Tsao

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A voltage-waveform detector produces a voltage-feedback signal and a discharge-time signal by multi-sampling a voltage signal of a transformer. The discharge-time signal represents a discharge time of a secondary-side switching current. A voltage-loop error amplifier amplifies the voltage-feedback signal and generates a control signal. An off-time modulator correspondingly generates a discharge-current signal and a standby signal in response to the control signal and an under-voltage signal. The under-voltage signal indicates a low supply voltage of the controller. An oscillator produces a pulse signal in response to the discharge-current signal. The pulse signal determines the off-time of the switching signal. A PWM circuit generates the switching signal in response to the pulse signal and the standby signal. The standby signal further controls the off-time of the switching signal and maintains a minimum switching frequency. The switching signal is used for regulating the output of the power supply.

Abstract translation: 电压波形检测器通过对变压器的电压信号进行多次采样来产生电压反馈信号和放电时间信号。 放电时间信号表示次级侧开关电流的放电时间。 电压环路误差放大器放大电压反馈信号并产生控制信号。 关断时间调制器相应地根据控制信号和欠压信号产生放电电流信号和待机信号。 欠压信号表示控制器的低电源电压。 振荡器响应于放电电流信号产生脉冲信号。 脉冲信号确定开关信号的关断时间。 PWM电路响应于脉冲信号和待机信号产生开关信号。 待机信号进一步控制开关信号的关断时间并保持最小开关频率。 开关信号用于调节电源的输出。

公开(公告)号：US07151681B2

公开(公告)日：2006-12-19

申请号：US11022167

申请日：2004-12-21

Applicant: Ta-yung Yang ,  Guo-Kiang Hung ,  Jenn-yu G. Lin

Inventor： Ta-yung Yang ,  Guo-Kiang Hung ,  Jenn-yu G. Lin

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M2001/0009

Abstract: A multiple-sampling circuit is proposed for measuring a voltage signal and a discharge time of a transformer. Sampling signals are used for generating hold voltages by alternately sampling the reflected voltage from the transformer. A buffer amplifier generates a buffer voltage from the higher voltage of hold voltages. A sampling switch periodically conducts the buffer voltage to produce a voltage-feedback signal. The voltage-feedback signal is proportional to an output voltage of the switching circuit. A threshold signal added to the reflected voltage signal produces a level-shift reflected signal. A discharge-time signal is generated as the switching signal is disabled. The discharge-time signal is disabled once the level-shift signal is lower than the voltage-feedback signal. The pulse width of the discharge-time signal is therefore correlated to the discharge time of the transformer. The sampling signals are enabled to generate hold voltages only when the discharge-time signal is enabled.

Abstract translation: 提出了一种多采样电路，用于测量变压器的电压信号和放电时间。 采样信号用于通过交替采样来自变压器的反射电压来产生保持电压。 缓冲放大器从保持电压的较高电压产生缓冲电压。 采样开关周期性地进行缓冲电压以产生电压反馈信号。 电压反馈信号与开关电路的输出电压成比例。 添加到反射电压信号的阈值信号产生电平移位反射信号。 随着切换信号被禁止，产生放电时间信号。 一旦电平移位信号低于电压反馈信号，放电时间信号被禁止。 因此，放电时间信号的脉冲宽度与变压器的放电时间相关。 采样信号仅在放电时间信号使能时才能产生保持电压。

公开(公告)号：US07061225B2

公开(公告)日：2006-06-13

申请号：US10881202

申请日：2004-06-29

Applicant: Ta-yung Yang ,  Guo-Kiang Hung ,  Jenn-yu G. Lin

Inventor： Ta-yung Yang ,  Guo-Kiang Hung ,  Jenn-yu G. Lin

IPC: G01R19/30 ,  H02M3/335

CPC classification number: H02M3/33507 ,  H02M2001/0009

Abstract: An apparatus and method thereof for measuring an output current from a primary side of a power converter are provided. A peak detector is designed to sample a peak value of a converted voltage of a primary-side switching current. A zero-current detector detects a discharge-time of a secondary-side switching current through an auxiliary winding of a transformer. An oscillator generates a switching signal for switching the power converter. An integrator generates an integrated signal by integrating the converted voltage of the primary-side switching peak current with the discharge-time. The time constant of the integrator is correlated with the switching period of the switching signal. The integrated signal is thus proportional to the output current of the power converter.

Abstract translation: 提供了一种用于测量来自功率转换器的初级侧的输出电流的装置和方法。 峰值检测器被设计为对初级侧开关电流的转换电压的峰值进行采样。 零电流检测器检测通过变压器的辅助绕组的次级侧开关电流的放电时间。 振荡器产生用于切换功率转换器的开关信号。 积分器通过将初级侧开关峰值电流的转换电压与放电时间进行积分来生成积分信号。 积分器的时间常数与开关信号的开关周期相关。 因此，积分信号与功率转换器的输出电流成比例。

公开(公告)号：US06954367B2

公开(公告)日：2005-10-11

申请号：US10248219

申请日：2002-12-29

Applicant: Ta-yung Yang ,  Jenn-yu G. Lin ,  Chern-Lin Chen

Inventor： Ta-yung Yang ,  Jenn-yu G. Lin ,  Chern-Lin Chen

IPC: H02M3/335 ,  H02M3/337 ,  H02M3/24

CPC classification number: H02M3/3376 ,  H02M3/33569 ,  H02M2001/0048 ,  Y02B70/1491

Abstract: A pulse width modulated soft-switching power converter has a transformer with a primary winding and a secondary winding, a secondary circuit coupled to the secondary winding, and a pair of main switches and a pair of auxiliary switches coupled to the primary winding. The main switches and auxiliary switches intermittently conduct an input voltage source to the primary winding of the transformer to operate the soft-switching power converter in four operation stages in each switching cycle. The main switches conduct the input voltage source to the transformer in a first operation stage. In a second operation stage, the conduction is cut off. The transformer operates as an inductor with the auxiliary switches switched on under zero-voltage or zero-current switching mode in a third operation stage. In the fourth operation stage, auxiliary switches are switched off to achieve zero-voltage transition.

Abstract translation: 脉冲宽度调制软开关功率转换器具有一个具有初级绕组和次级绕组的变压器，耦合到次级绕组的次级电路以及耦合到初级绕组的一对主开关和一对辅助开关。 主开关和辅助开关间歇地将一个输入电压源传送到变压器的初级绕组，以在每个开关周期的四个运行阶段中操作软开关功率转换器。 在第一个操作阶段，主开关将输入电压源传导到变压器。 在第二操作阶段，导通被切断。 变压器作为电感器工作，辅助开关在第三个运行阶段以零电压或零电流开关模式接通。 在第四个运行阶段，辅助开关被关闭以实现零电压转换。