Abstract: The present invention provides a current control circuit for a driving circuit system of a LED assembly, wherein the driving circuit system includes a current module, a rectifier, and a thyristor, the thyristor is connected in series between an AC power supply and the rectifier, the rectifier rectifies an input AC voltage provided by the thyristor and provides a rectified voltage to an anode of the LED assembly, and an input terminal of the current module and a cathode of the LED assembly are connected to set a current flowing through the LED assembly.

Abstract: The present invention provides a current control circuit for a driving circuit system of a LED assembly, wherein the driving circuit system includes a current module, a rectifier, and a thyristor, the thyristor is connected in series between an AC power supply and the rectifier, the rectifier rectifies an input AC voltage provided by the thyristor and provides a rectified voltage to an anode of the LED assembly, and an input terminal of the current module and a cathode of the LED assembly are connected to set a current flowing through the LED assembly.

Abstract: A current control circuit is provided for a driving circuit system of LEDs coupled in series. The driving circuit system includes a rectifier and current modules. In the current control circuit, a first voltage-division circuit divides an output voltage of the rectifier to obtain a first voltage. A first operational amplifier has a non-inverting input terminal receiving a reference voltage, an inverting input terminal coupled to a common output terminal, and an output terminal coupled to one terminal of a capacitor and a first input terminal of a multiplier. A first input terminal of the multiplier receives an output voltage of the first operational amplifier, and the second input terminal thereof receives the first voltage. The other terminal of the capacitor is coupled to the ground. One terminal of a resistor is coupled to the common output terminal, and the other terminal thereof is coupled to the ground.