Provided is a universal LED child-mother lamp, comprising a child LED lamp (202), a mother LED lamp (201) and a controller for adjusting the luminous flux of the LED lamps, wherein a PWM dimming module (43) is embedded in the controller; and a circuit of the PWM dimming module comprises a first LED drive circuit (431) used for driving the mother LED lamp, a second LED drive circuit (432) used for driving the child LED lamp, a programmable microcontroller (435) connected to the first and second LED drive circuits, and a double-control switch circuit (434) connected to the programmable microcontroller, wherein each of the first and second LED drive circuits is formed by a high-frequency circuit (436) and a DC/DC PWM current amplifier (437). During a high-frequency operation, a stable electric power can be output to the LED lamp to prevent frequent flashes, and because the DC/DC PWM current amplifier (437) overcomes the shortcoming of frequent flashes, a comfortable and soft light and a light modulation function ranging from 0 to 100 percent are provided.
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机译:本发明提供一种通用的LED子母灯,包括子LED灯(202),母LED灯(201)和用于调节LED灯的光通量的控制器,其中,PWM调光模块(43)嵌入其中。控制器; PWM调光模块的电路包括:用于驱动母LED灯的第一LED驱动电路(431),用于驱动子LED灯的第二LED驱动电路(432),可编程微控制器(435)。第一和第二LED驱动电路,以及连接到可编程微控制器的双控开关电路(434),其中第一和第二LED驱动电路中的每个由高频电路(436)和DC / DC PWM形成电流放大器(437)。在高频操作期间,可以向LED灯输出稳定的电力,以防止频繁闪烁,并且因为DC / DC PWM电流放大器(437)克服了频繁闪烁,舒适和柔和的光线以及光线不足的缺点。提供0%至100%的调制功能。
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