LED current control circuit

The utility model discloses an LED current control circuit, which comprises an LED and a current sampling resistor, wherein the current sampling resistor is connected between the ground and a cathode of the LED in series; and the two ends of the current sampling resistor are connected with a filter capacitor in parallel. In the utility model, the two ends of the current sampling resistor are connected with the filter capacitor in parallel so as to form a low-pass flow line circuit with the sampling resistor; therefore, the noise can be effectively absorbed and the ripple current can be reduced; meanwhile, the reduction of the noise can lower the influence of the circuit on the surrounding environment, so that the sampling value can be more accurate and the service life of the LED can be prolonged.