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2. 发明授权

US06507157B1 Electronic ballast system with dual power and dimming capability 失效
标题翻译：具有双电源和调光能力的电子镇流器系统
公开(公告)号：US06507157B1
公开(公告)日：2003-01-14
申请号：US09963753
申请日：2001-09-25
申请人： Robert Alexander Erhardt , Steven Pilgrim , Raymond Kulka , Ching-Yao Hung
发明人： Robert Alexander Erhardt , Steven Pilgrim , Raymond Kulka , Ching-Yao Hung
IPC分类号： H05B3702
CPC分类号： H05B41/282 , H05B41/40 , Y02B20/183 , Y10S315/04
摘要： Control circuitry for controlling the output power of an electronic ballast system having a power supply branch circuit having power lines comprising a line voltage line and a common line, and a ballast stage having (i) inputs connected to the power lines for providing power to the lamp, (ii) internal power control feedback circuitry that defines a feedback loop for controlling the amount of power applied to the lamp, and (iii) a control signal input for receiving a control signal that affects operation the internal power control feedback circuitry and the level of power outputted by the ballast stage. The control circuitry comprises a first circuit having an input for connection to one of the power lines. The first circuit generates a control signal for input into the control input of the ballast stage. The control circuitry having a first predetermined magnitude when one of the power lines is connected to the input of the first circuit and a second predetermined magnitude when the power lines are isolated from the input of the first circuit. The control circuitry further comprises a second circuit having a first state for reducing the first and second predetermined magnitudes of the control signal by a predetermined increment so as to effect step dimming of the lamp and a second state that maintains the first and second predetermined magnitudes of the control signal.
摘要翻译：用于控制具有电源分支电路的电子镇流器系统的输出功率的控制电路，所述电源分支电路具有包括线路电压线和公共线的电力线，以及镇流器级，其具有连接到所述电力线的输入，以向灯，（ii）内部功率控制反馈电路，其定义用于控制施加到灯的功率量的反馈回路，以及（iii）控制信号输入，用于接收影响内部功率控制反馈电路和镇流器级输出的功率。控制电路包括具有用于连接到电力线之一的输入的第一电路。第一电路产生用于输入到镇流器级的控制输入端的控制信号。当电源线之一连接到第一电路的输入端时，控制电路具有第一预定量值，当电源线与第一电路的输入隔离时，控制电路具有第二预定幅度。控制电路还包括第二电路，其具有用于将控制信号的第一和第二预定幅度减小预定增量的第一状态，以便实现灯的步进调光，以及保持第一和第二预定幅度的第二状态控制信号。

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