Band-gap reference circuit structure with starting circuit

The invention provides a band-gap reference circuit structure with a starting circuit, relates to the technical field of electronic circuits, can adopt a normally connected NPN triode to design a band-gap reference source, and is simple in structure and low in cost. In the circuit, G poles of first and second MOS tubes are connected, and S poles are connected with a power supply; a G pole and a D pole of the second MOS tube are connected; the D electrode of the first MOS tube is connected with the collector of the second triode, the D electrode of the second MOS tube is connected with the collector of the first triode, and the base electrodes of the first triode and the second triode are connected; a first resistor is connected in series between the emitters of the two triodes; the emitter of the second triode is grounded after being connected in series with a second resistor; the S electrode of the third MOS tube is connected with the base electrode of the first triode, the D electrode is connected with the