Gasoline engine generator voltage regulator and voltage regulator circuit thereof

The embodiments of the invention provide a gasoline engine generator voltage regulator and a voltage regulator circuit thereof, wherein voltage regulator circuit includes a rectifying circuit, an output circuit, a sampling circuit, a control circuit, a power circuit and a protective circuit, wherein the rectifying circuit has an output end connected to a power source end of the output circuit, an input end of the power circuit and an power source end of the control circuit; a second output end of the output circuit is connected to a second input end of the protective circuit; a first output end of the sampling circuit is connected to a first input end of the control circuit, a second output end of the sampling circuit is connected to a first input end of the protective circuit; an output end of the control circuit is connected to an input end of the output circuit, and an output end of the power circuit is connected to a power source end of the control circuit; a first output end and a second output end of the protective circuit are respectively connected to a second input end and a third input end of the control circuit.