DC power supply control circuit applied to multi-primary-color film and television lamp
A technology of control circuit and DC power supply, which is applied in the direction of electrical components, etc., can solve the problems of small voltage range, precise control of output voltage, and inability to meet the requirements of high-power film and television lights, etc., and achieve the effect of precise brightness control and small size
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[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0025] like Figure 1 to Figure 6 A DC power supply control circuit of the present invention applied to a multi-primary color video lamp includes a main control chip U6 and an input detection circuit 2, a conversion circuit, an output detection circuit 3, and a working mode switching circuit respectively connected to the main control chip U6. , the input voltage control circuit 4 and the chip operating frequency control circuit 5, the...
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