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    • 1. 发明授权
    • Switch mode power supply for in-line voltage applications
    • 用于在线电压应用的开关模式电源
    • US08184457B2
    • 2012-05-22
    • US12375229
    • 2007-07-26
    • Yimin ChenYuhong FangRomel PanlilioArun Ganesh
    • Yimin ChenYuhong FangRomel PanlilioArun Ganesh
    • G05F1/00H02H7/10
    • H02M7/2176H02M1/32H02M1/42H02M3/1582Y02B70/12
    • A switch mode power supply (15) employs a rectifier (20), a converter (50) and converter driver (60). The rectifier (20) generates a rectified supply voltage (VRS) based on an in-line voltage (VLN), and the converter driver (60) generates one or more driving voltages (VDR) to facilitate a conversion by the converter (50) of the rectified supply voltage (VRS) to a DC bus voltage (VDC) based on the driving voltage(s) (VDR). The converter (50) may include a transient voltage suppression device (52) to suppress the rectified supply voltage (VRS) in response to an abnormal line condition of the switch mode power supply (15), and the converter driver (60) may include a free-oscillating suppression device (61) to suppress the one or more driving voltages (VDR) in response to a free-oscillating condition of the converter driver (60).
    • 开关模式电源(15)采用整流器(20),转换器(50)和转换器驱动器(60)。 整流器(20)基于在线电压(VLN)产生整流电源电压(VRS),并且转换器驱动器(60)产生一个或多个驱动电压(VDR)以便于转换器(50)的转换, 基于驱动电压(VDR)将整流后的电源电压(VRS)提供给直流总线电压(VDC)。 转换器(50)可以包括瞬态电压抑制装置(52),以响应于开关模式电源(15)的异常线路状况来抑制整流的电源电压(VRS),并且转换器驱动器(60)可以包括 自由振荡抑制装置(61),用于响应于转换器驱动器(60)的自由振荡状态来抑制一个或多个驱动电压(VDR)。
    • 3. 发明授权
    • Electronic ballast with higher startup voltage
    • 电子镇流器具有较高的启动电压
    • US07868559B2
    • 2011-01-11
    • US11720844
    • 2005-12-08
    • Ramakrishnan VenkatramanRomel Panlilio
    • Ramakrishnan VenkatramanRomel Panlilio
    • H05B37/02
    • H05B41/245H05B41/282Y02B20/183
    • An electronic ballast with higher startup voltage includes converter with a switching circuit (40) responsive to a switching control signal (50) and operably connected to a DC bus (30); a DC controller (44) comparing a sensed DC bus voltage signal and a reference DC bus voltage signal to generate the switching control signal (50); and a startup adjustor operably connected to the DC controller (44) to adjust at least one of the sensed DC bus voltage signal and the reference DC bus voltage signal for a predetermined time at startup so that startup DC bus voltage is greater than steady state DC bus voltage.
    • 具有较高启动电压的电子镇流器包括具有响应于开关控制信号(50)并且可操作地连接到DC总线(30)的开关电路(40)的转换器; 比较感测的直流母线电压信号和基准直流母线电压信号以产生开关控制信号的直流控制器(44); 以及启动调节器,其可操作地连接到所述DC控制器(44),以在启动时调整所感测的直流母线电压信号和所述参考DC总线电压信号中的至少一个预定时间,使得启动DC总线电压大于稳态DC 总线电压。