Low-cost high-efficiency and non-stroboscopic LED drive circuit

The utility model discloses a low-cost high-efficiency and non-stroboscopic LED drive circuit. The LED driving circuit is characterized in that the LED driving circuit comprises an APFC circuit; the voltage of the APFC circuit is input from ACL and ACN terminals; the output terminal of the APFC circuit is connected to a capacitor Cout and an LED load in parallel connection with the capacitor Cout; the cathode of the LED load is in series connection with the drain electrode of a MOS tube; the source electrode of the MOS tube is grounded through a sampling resistor and is also connected to the first input terminal Va of a comparator OP; the second output terminal Vb of the comparator OP is connected to a reference voltage; and the output terminal of the comparator OP is connected to the grid electrode of the MOS tube. The LED driving circuit is simple in circuit, low in cost and high in frequency, is non-stroboscopic, and meets long-term development demands of lamps.