Novel power generation circuit

The utility model relates to a novel power generation circuit. An output end of a silicon rectification generator is connected with an exciting current generation circuit, the output of the exciting current generation circuit is sent to a silicon rectification generator through a silicon rectifying and regulating circuit for being rectified and outputted. The present circuit is an improved circuit based on an original generator of a tractor. The present circuit can be used to generate a replenishment effect through exciting currents when the tractor is in idle speed conditions and the voltage of the generator is 2V so as to keep the voltage constant at a voltage in the range of 10V to 14V, so the supply of the rectified output to the generator is ensured, thereby the lighting voltage of the tractor is guaranteed and the problem of insecurity in night driving is solved.