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41. 发明授权

US07615934B2 High efficiency resonant ballast 失效
标题翻译：高效谐振镇流器
公开(公告)号：US07615934B2
公开(公告)日：2009-11-10
申请号：US11608088
申请日：2006-12-07
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： H05B37/02
CPC分类号： H05B41/2856 , H05B41/2825 , H05B41/2828 , Y10S315/05
摘要： The present invention provides a low-cost ballast circuit for fluorescent lamps. A resonant circuit has a transformer to operate the fluorescent lamp. The fluorescent lamp is connected in series with a first winding of the transformer. A first transistor and a second transistor are coupled to switch the resonant circuit. A second winding and a third winding of the transformer are used for generating control signals in response to a switching current of the resonant circuit. Furthermore, the present invention achieves soft operation for the first transistor and the second transistor.
摘要翻译：本发明提供一种用于荧光灯的低成本镇流器电路。谐振电路具有用于操作荧光灯的变压器。荧光灯与变压器的第一绕组串联连接。耦合第一晶体管和第二晶体管以切换谐振电路。变压器的第二绕组和第三绕组用于响应谐振电路的开关电流产生控制信号。此外，本发明实现了第一晶体管和第二晶体管的软操作。

42. 发明授权

US07602160B2 Method and apparatus providing protection for power converter 有权
标题翻译：为功率转换器提供保护的方法和装置
公开(公告)号：US07602160B2
公开(公告)日：2009-10-13
申请号：US11461405
申请日：2006-07-31
申请人： Ta-yung Yang , Chien-Yuan Lin , Tso-Min Chen
发明人： Ta-yung Yang , Chien-Yuan Lin , Tso-Min Chen
IPC分类号： G05F1/40
CPC分类号： H02M1/32 , H02M3/33507
摘要： The invention presents a surge output protection for a control circuit of power converter. It comprises an input circuit for generating a threshold signal. A first comparator is coupled to receive a signal representative the current through a power switch. The first comparator further generates a control signal in response to the signal and the threshold signal. A timer circuit is utilized to generate a time-out signal in response to the control signal. The time-out signal is coupled to turn off the power switch.
摘要翻译：本发明为功率转换器的控制电路提供浪涌输出保护。它包括用于产生阈值信号的输入电路。第一比较器被耦合以接收代表通过电源开关的电流的信号。第一比较器还响应于信号和阈值信号产生控制信号。使用定时器电路来响应于控制信号产生超时信号。超时信号被耦合以关闭电源开关。

43. 发明申请

US20090237133A1 SWITCHING CONTROL CIRCUIT FOR MULTI-CHANNELS AND MULTI-PHASES POWER CONVERTER OPERATED AT CONTINUOUS CURRENT MODE 有权
标题翻译：多通道切换控制电路和多相功率转换器在连续电流模式下运行
公开(公告)号：US20090237133A1
公开(公告)日：2009-09-24
申请号：US12389465
申请日：2009-02-20
申请人： Ta-Yung YANG
发明人： Ta-Yung YANG
IPC分类号： H03L7/00
CPC分类号： H02M3/1584 , H02M2001/0032 , Y02B70/16
摘要： A switching control circuit for multi-channels and multi-phases power converter according to the present invention comprises a master control circuit and a slave control circuit. The master control circuit generates a multiplier signal in response to an input voltage and an output voltage of the power converter, and generates a first switching signal to switch a first inductor of the power converter in accordance with the multiplier signal and the first-current signal generated by a first current-sense device. The slave control circuit generates a second switching signal to switch a second inductor of the power converter in accordance with the multiplier signal, the first switching signal and a second-current signal generated by a second current-sense device. Once the power converter is at light-load, the multiplier signal is disabled to turn off the second switching signal to turn off the slave control circuit for power saving of the power converter.
摘要翻译：根据本发明的用于多通道和多相功率转换器的开关控制电路包括主控电路和从控制电路。主控制电路响应于功率转换器的输入电压和输出电压产生乘法器信号，并且产生第一开关信号以根据乘法器信号和第一电流信号切换功率转换器的第一电感器由第一电流检测装置产生。从控制电路产生第二切换信号，以根据乘法器信号，第一切换信号和由第二电流感测装置产生的第二电流信号切换功率转换器的第二电感器。一旦电源转换器处于轻负载状态，禁止乘法器信号关闭第二个开关信号，以关闭从控制电路以便功率转换器的功率节省。

44. 发明授权

US07592793B2 Voltage regulator providing power from AC power source 有权
标题翻译：电压调节器提供交流电源的电源
公开(公告)号：US07592793B2
公开(公告)日：2009-09-22
申请号：US11477494
申请日：2006-06-30
申请人： Ta-Yung Yang
发明人： Ta-Yung Yang
IPC分类号： G05F1/569 , G05F1/575
CPC分类号： G05F1/46
摘要： A high efficiency voltage regulator for generating a regulated output voltage from an AC power source is disclosed. It includes a switch coupled to a voltage source from the AC power source to provide a supply voltage. An input detection circuit is coupled to the voltage source to turn off the switch when the voltage level of the voltage source is higher than a threshold voltage. An output detection circuit is connected to the supply voltage to turn off the switch once the voltage level of the supply voltage is higher than an output-over-voltage threshold. The switch can only be turned on when the voltage level of the voltage source is lower than the threshold voltage and the voltage level of the supply voltage is lower than a hysteresis threshold.
摘要翻译：公开了一种用于从AC电源产生稳定的输出电压的高效率电压调节器。它包括耦合到来自AC电源的电压源以提供电源电压的开关。当电压源的电压电平高于阈值电压时，输入检测电路耦合到电压源以断开开关。一旦电源电压的电压电平高于输出过电压阈值，输出检测电路连接到电源电压以关闭开关。只有当电压源的电压电平低于阈值电压并且电源电压的电压低于迟滞阈值时，开关才能接通。

45. 发明申请

US20090141521A1 Method and apparatus of providing synchronous regulation for offline power converter 有权
标题翻译：为离线功率转换器提供同步调节的方法和装置
公开(公告)号：US20090141521A1
公开(公告)日：2009-06-04
申请号：US11987597
申请日：2007-12-03
申请人： Ta-Yung Yang
发明人： Ta-Yung Yang
IPC分类号： H02M1/00 , H02M7/04 , H02M7/155
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A synchronous regulation circuit is provided to improve the efficiency for an offline power converter. A secondary-side switching circuit is coupled to the output of the power converter to generate a synchronous signal and a pulse signal in response to an oscillation signal and a feedback signal. An isolation device transfers the synchronous signal from the secondary side to the primary side of the power converter. A primary-side switching circuit further receives the synchronous signal to generate a switching signal for soft switching a transformer. The pulse signal is utilized to control a synchronous switch for rectifying and regulating the power converter. The synchronous switch includes a power switch and a control circuit. The control circuit receives the pulse signal for turning on/off the power switch. The power switch is connected in between the transformer and the output of the power converter. In addition, a flyback switch is operated as a synchronous rectifier to freewheel the inductor current of the power converter. The flyback switch is turned on in response to the off of the power switch. The on time of flyback switch is correlated to the on time of the power switch.
摘要翻译：提供同步调节电路以提高离线功率转换器的效率。次级侧开关电路耦合到功率转换器的输出，以响应于振荡信号和反馈信号产生同步信号和脉冲信号。隔离装置将同步信号从次级侧传递到功率转换器的初级侧。初级侧开关电路还接收同步信号以产生用于软开关变压器的开关信号。脉冲信号用于控制用于整流和调节功率转换器的同步开关。同步开关包括电源开关和控制电路。控制电路接收用于打开/关闭电源开关的脉冲信号。电源开关连接在变压器和电源转换器的输出端之间。另外，反激式开关作为同步整流器来驱动电力转换器的电感电流。反激开关响应于电源开关的关闭而导通。反激开关的导通时间与电源开关的接通时间相关。

46. 外观设计

USD590339S1 Controller with DC brushless motor 有权
标题翻译：直流无刷电机控制器
公开(公告)号：USD590339S1
公开(公告)日：2009-04-14
申请号：US29320310
申请日：2008-06-25
申请人： Ta-Yung Yang , Shih-Jen Yang , Hung-Sen Tu , Ming-Wei Cheng
设计人： Ta-Yung Yang , Shih-Jen Yang , Hung-Sen Tu , Ming-Wei Cheng

47. 发明申请

US20090091951A1 CONTROL CIRCUIT FOR SYNCHRONOUS RECTIFYING AND SOFT SWITCHING OF POWER CONVERTERS 有权
标题翻译：电力变压器同步整流和软开关控制电路
公开(公告)号：US20090091951A1
公开(公告)日：2009-04-09
申请号：US11866778
申请日：2007-10-03
申请人： Ta-yung Yang , Pei-Sheng Tsu , Chou-Sheng Wang
发明人： Ta-yung Yang , Pei-Sheng Tsu , Chou-Sheng Wang
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A control circuit for soft switching and synchronous rectifying is provided for power converter. A switching-signal circuit is used for generating drive signals and a pulse signal in response to a leading edge and a trailing edge of a switching signal. The switching signal is developed for regulating the power converter. Drive signals are coupled to switch the power transformer. A propagation delay is developed between drive signals to achieve soft switching of the power converter. An isolation device is coupled to transfer the pulse signal from a primary side of a power transformer to a secondary side of the power transformer. A controller of the integrated synchronous rectifier is coupled to the secondary side of the power transformer for the rectifying operation. The controller is operated to receive the pulse signal for switching on/off the power transistor. The pulse signal is to set or reset a latch circuit of the controller for controlling the power transistor.
摘要翻译：为电源转换器提供了软开关和同步整流的控制电路。开关信号电路用于响应于开关信号的前沿和后沿而产生驱动信号和脉冲信号。开关信号用于调节功率转换器。驱动信号被耦合以切换电力变压器。在驱动信号之间产生传播延迟，以实现功率转换器的软开关。耦合隔离装置以将脉冲信号从电力变压器的初级侧传送到电力变压器的次级侧。集成式同步整流器的控制器耦合到电力变压器的次级侧用于整流操作。操作控制器接收用于接通/关断功率晶体管的脉冲信号。脉冲信号用于设置或复位用于控制功率晶体管的控制器的锁存电路。

48. 发明授权

US07498788B2 Switching regulator having energy saving circuit 有权
标题翻译：开关稳压器具有节能电路
公开(公告)号：US07498788B2
公开(公告)日：2009-03-03
申请号：US11255961
申请日：2005-10-24
申请人： Ta-Yung Yang
发明人： Ta-Yung Yang
IPC分类号： G05F1/00
CPC分类号： H02M3/156 , H02M2001/0032 , Y02B70/16
摘要： A switching regulator having an energy saving circuit and an energy saving method is provided to improve the system efficiency under light load conditions. A first control unit outputs an oscillation signal and an energy saving signal in response to the variation of a feedback signal. A second control unit receives the feedback signal and the oscillation signal to output a switching signal to control a switch. An off-time of the switching signal is increased in response to a decrement of the load. The energy saving signal is applied to turn off the switch and the circuits of the switching regulator needn't to work during the off-time of the switching signal for saving energy under light load conditions.
摘要翻译：提供具有节能电路和节能方法的开关调节器，以在轻负载条件下提高系统效率。第一控制单元响应于反馈信号的变化而输出振荡信号和节能信号。第二控制单元接收反馈信号和振荡信号以输出开关信号以控制开关。切换信号的关闭时间响应于负载的减小而增加。施加节能信号以关闭开关，并且开关稳压器的电路在开关信号的关闭时间期间不需要工作，以在轻负载条件下节省能量。

49. 发明申请

US20090050962A1 MOSFET WITH ISOLATION STRUCTURE FOR MONOLITHIC INTEGRATION AND FABRICATION METHOD THEREOF 有权
标题翻译：具有隔离结构的MOSFET用于单片集成及其制造方法
公开(公告)号：US20090050962A1
公开(公告)日：2009-02-26
申请号：US11913037
申请日：2005-10-14
申请人： Chih-Feng Huang , Tuo-Hsin Chien , Jenn-Yu Lin , Ta-yung Yang
发明人： Chih-Feng Huang , Tuo-Hsin Chien , Jenn-Yu Lin , Ta-yung Yang
IPC分类号： H01L29/78 , H01L21/336
CPC分类号： H01L27/0928 , H01L21/823878 , H01L21/823892
摘要： A MOSFET device with an isolation structure for a monolithic integration is provided. A P-type MOSFET includes a first N-well disposed in a P-type substrate, a first P-type region disposed in the first N-well, a P+ drain region disposed in the first P-type region, a first source electrode formed with a P+ source region and an N+ contact region. The first N-well surrounds the P+ source region and the N+ contact region. An N-type MOSFET includes a second N-well disposed in a P-type substrate, a second P-type region disposed in the second N-well, an N+drain region disposed in the second N-well, a second source electrode formed with an N+ source region and a P+ contact region. The second P-type region surrounds the N+ source region and the P+ contact region. A plurality of separated P-type regions is disposed in the P-type substrate to provide isolation for transistors.
摘要翻译：提供了具有用于单片集成的隔离结构的MOSFET器件。 P型MOSFET包括设置在P型衬底中的第一N阱，设置在第一N阱中的第一P型区，设置在第一P型区中的P +漏极区，第一源电极形成有P +源极区域和N +接触区域。第一个N阱围绕着P +源极区域和N +接触区域。 N型MOSFET包括设置在P型衬底中的第二N阱，设置在第二N阱中的第二P型区，设置在第二N阱中的N +漏极区，第二源电极形成有N +源区和P +接触区。第二P型区围绕N +源极区域和P +接触区域。多个分离的P型区域设置在P型衬底中以提供晶体管的隔离。

50. 发明申请

US20080310203A1 METHOD AND APPARATUS TO PROVIDE SYNCHRONOUS RECTIFYING CIRCUIT FOR OFFLINE POWER CONVERTERS 有权
标题翻译：为离线电源转换器提供同步整流电路的方法和装置
公开(公告)号：US20080310203A1
公开(公告)日：2008-12-18
申请号：US11763171
申请日：2007-06-14
申请人： Ta-yung Yang , Tso-Min Chen
发明人： Ta-yung Yang , Tso-Min Chen
IPC分类号： H02M7/06
CPC分类号： H02M1/08 , H03K17/28 , H03K17/74 , H03K17/80
摘要： A synchronous rectifying circuit is provided for power converter. A pulse signal generator is utilized to generate a pulse signal in response to the leading edge and the trailing edge of a switching signal. The switching signal is used for switching the transformer of the power converter. An isolation device such as pulse transformer or small capacitors is coupled to the pulse signal generator for transferring the pulse signal through an isolation barrier of a transformer. A synchronous rectifier includes a power switch and a control circuit. The power switch is equipped in between the secondary side of the transformer and the output of the power converter for the rectifying. The control circuit having a latch is operated to receive the pulse signal for turning on/off the power switch.
摘要翻译：为功率转换器提供同步整流电路。脉冲信号发生器用于响应于开关信号的前沿和后沿产生脉冲信号。开关信号用于切换电源转换器的变压器。诸如脉冲变压器或小电容器的隔离装置被耦合到脉冲信号发生器，用于通过变压器的隔离栅传递脉冲信号。同步整流器包括电源开关和控制电路。电源开关配置在变压器的次级侧和电源转换器的输出端之间进行整流。具有闩锁的控制电路被操作以接收用于打开/关闭电源开关的脉冲信号。

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