A single-stage high-voltage DC power supply led switching power supply
A high-voltage DC and switching power supply technology, applied in the power supply field, can solve the problems of low power conversion efficiency and increased power consumption, and achieve the effects of simplifying interface signals, increasing power conversion power, and improving power conversion efficiency
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[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0036] Such as figure 1 As shown, in the embodiment of the present invention, a single-stage high-voltage DC power supply LED switching power supply is proposed, including a main circuit and a control circuit.
[0037] The main circuit includes an HVDC input EMC unit, a non-isolated step-down switching circuit unit, an output EMC unit, a signal acquisition unit, a switch signal drive unit and a first primary signal interface unit; wherein,
[0038] The HVDC input EMC unit is connected to the non-isolated step-down switch circuit unit and the signal acquisition unit, the non-isolated step-down switch circuit unit is connected to the signal acquisition unit and the output EMC unit, and the signal acquisition unit is connected to the first primary signal interface un...
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