LED Dimming Device With High Refresh Rate And Smooth Dimming

Abstract

An LED dimming device with a high refresh rate and smooth dimming includes a constant current source circuit and an LED dimming circuit that are sequentially connected in series. The LED dimming circuit includes an LED and a first electronic switch. A positive electrode of the LED is connected to an output end of the constant current source circuit. The first electronic switch is connected in parallel at both ends of the LED. The LED dimming device further includes an energy quick release circuit and a first control circuit. The energy quick release circuit is connected in series with the first electronic switch to accelerate releasing excess energy in the constant current source circuit. The first control circuit is connected to the first electronic switch to control turning on or off of the first electronic switch.

Dependencies are inferred from the claim text.