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51. 发明申请

WO2003001315A1 VOLT-SECOND BALANCED PFC-PWM POWER CONVERTER 审中-公开
标题翻译： VOLT-SECOND平衡PFC-PWM功率转换器
公开(公告)号：WO2003001315A1
公开(公告)日：2003-01-03
申请号：PCT/US2002/019712
申请日：2002-06-21
申请人： CHAMPION MICROELECTRONIC CORP. , HWANG, Jeffrey
发明人： HWANG, Jeffrey
IPC分类号： G05F1/563
CPC分类号： H02M1/4225 , H02M1/0845 , H02M1/092 , H02M1/32 , H02M1/36 , H02M3/33523 , H02M2001/007 , Y02B70/126 , Y02P80/112 , Y10S323/901 , Y10S323/908
摘要： A volt-second balanced, power factor correction (112)(PFC), pulse-width modulation (PWM) two-stage power converter (100). A first PFC stage receives an AC input signal (102) and forms a regulated intermediate output voltage (VFB). A second stage receives the intermediate output voltage (VFB) and forms a regulated DC output voltage (VDC). A level of the intermediate output voltage is monitored and used to adjust the duty cycle of a main power switch (SW1) in the PWM stage. By adjusting the PWM duty cycle based on the level of the intermediate output voltage (VFB), rather than the DC output voltage (VDC), the PWM converter (100) is volt-second balanced further, when a controller (110) for the power converter (100) is implemented as an integrated circuit, a pin is not required for monitoring the regulated DC output (VDC). Accordingly, the number of pins is minimized.
摘要翻译：一个二阶平衡功率因数校正（112）（PFC），脉冲宽度调制（PWM）两级功率转换器（100）。第一PFC级接收AC输入信号（102）并形成调节的中间输出电压（VFB）。第二级接收中间输出电压（VFB）并形成稳压直流输出电压（VDC）。监控中间输出电压的电平，并用于调整PWM阶段主电源开关（SW1）的占空比。通过基于中间输出电压（VFB）的电平而不是直流输出电压（VDC）调整PWM占空比，PWM转换器（100）进一步被伏秒平衡，当控制器（110）用于电源转换器（100）作为集成电路实现，不需要一个引脚来监视稳压直流输出（VDC）。因此，引脚的数量被最小化。

52. 发明申请

WO2003001314A1 CURRENT LIMITING TECHNIQUE FOR A SWITCHING POWER CONVERTER 审中-公开
标题翻译：开关电源转换器的当前限制技术
公开(公告)号：WO2003001314A1
公开(公告)日：2003-01-03
申请号：PCT/US2002/019890
申请日：2002-06-21
申请人： CHAMPION MICROELECTRONIC CORP. , HWANG, Jeffrey
发明人： HWANG, Jeffrey
IPC分类号： G05F1/46
CPC分类号： H02M1/4225 , H02M1/0845 , H02M1/092 , H02M1/36 , H02M3/33523 , H02M2001/007 , Y02B70/126
摘要： An improved technique for limiting current in a switching power converter (100). The switching power converter includes a soft-start circuit (104) which slowly increases a switching duty cycle upon power-up. Once the converter is operating normally, the duty cycle is controlled to regulate the output voltage. In the event an excessive output current is detected, soft-start circuit is controlled to reduce the switching duty cycle. More particularly, a soft-start capacitor may be discharged during portions of a clock period used to control switching.
摘要翻译：一种用于限制开关功率转换器（100）中的电流的改进技术。开关电源转换器包括软启动电路（104），其在上电时缓慢地增加开关占空比。一旦转换器正常工作，就控制占空比来调节输出电压。在检测到过大的输出电流的情况下，控制软启动电路以减少开关占空比。更具体地，软启动电容器可以在用于控制切换的时钟周期的部分期间放电。

53. 发明申请

WO1990008424A1 DEVICE FOR CONTROLLING ANTIDUCTORS 审中-公开
标题翻译：用于控制抗体的装置
公开(公告)号：WO1990008424A1
公开(公告)日：1990-07-26
申请号：PCT/DE1990000014
申请日：1990-01-12
申请人： SIEMENS AKTIENGESELLSCHAFT , RUNGGALDIER, Diethard , DOERWALD, Claus, B.
发明人： SIEMENS AKTIENGESELLSCHAFT
IPC分类号： H02P07/622
CPC分类号： H02M1/0845 , H02P27/02
摘要： When antiductors are controlled by phase-angle control of semiconductor valves (4A, 4B and 4C), care must be taken in the case of large firing angles to ensure that two phases (A, B, C) are always fired at least approximately at the same time in function of the phase sequence of the three-phase current. A device for controlling antiductors comprises a control device (14) for generating primary firing signals (ZA, ZB, ZC) independently of each other over time, associated with a read-only memory (16) which generates secondary firing signals (ZZA, ZZB, ZZC) from the primary signals (ZA, ZB, ZC). The use of a read-only memory (16) permits virtually simultaneous firing of two phases and flexible adaptation to different modes of operation of the device.
摘要翻译：当通过半导体阀（4A，4B和4C）的相位角控制来控制反向输出时，在大的触发角的情况下必须注意，以确保两相（A，B，C）总是至少大约在同时具有三相电流相序的功能。一种用于控制反向输出的装置，包括一个控制装置（14），用于随时间独立地产生主要点火信号（ZA，ZB，ZC），它们与产生二次点火信号的只读存储器（16）相关联（ZZA，ZZB ，ZZC）从主信号（ZA，ZB，ZC）。只读存储器（16）的使用允许实际上同时触发两个阶段，并灵活地适应于设备的不同操作模式。

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