Parallel-switch-controlled variable load LED (light-emitting diode) driving circuit

The invention discloses a parallel-switch-controlled variable load LED (light-emitting diode) driving circuit and relates to the technical field of LED driving circuits. LED1-LEDn are sequentially connected in series, a positive pole of the LED1 is connected with the positive pole of an output terminal of a rectifier bridge IC1, a first path of the negative pole of the LEDn is respectively connected with one end of each of high voltage switch devices S1-Sn-1, a second path of the negative pole of the LEDn is connected with an input terminal of a feedback module, a third path of the negative pole of the LEDn is connected with the positive pole of an output terminal of the rectifier bridge IC1, and an output terminal of the feedback module FB is connected with a control terminal of the high pressure switch devices S1-Sn-1. The LED driving circuit disclosed by the invention only adopts less peripheral circuits such as the rectifier bridge, is extremely small in volume and low in cost, can be directly integrated onto a lamp panel carried with an LED string, requires no electrolytic capacitor and is simple in circuit, long in service life and high in power factor.