Abstract: The present disclosure relates to the technical field of food detection, in particular to an identification method of maturity of acacia honey. In the present disclosure, the identification method of maturity of acacia honey includes the following steps: detecting an acacia honey sample using turanose as a characteristic marker; where if the acacia honey sample to be identified has a turanose content of no less than 0.5%, it is determined that the acacia honey sample to be identified is mature acacia honey; if the acacia honey sample to be identified has a turanose content of no less than 0.3% but less than 0.5%, it is determined that the acacia honey sample to be identified is semi-immature acacia honey; and if the acacia honey sample to be identified has a turanose content of less than 0.3%, it is determined that the acacia honey sample to be identified is immature acacia honey.

Abstract: A high-frequency isolation alternating/direct current conversion circuit and a control method thereof are disclosed. The conversion circuit includes an alternating current source, a direct current source, a resonant capacitor, a high-voltage energy-storage filter, a high-frequency inverter bridge, a drive circuit, a resonant inductor, a high-frequency isolation transformer, a direct current side synchronous switch, a control circuit, and the like. The conversion circuit is made to be switched between two working modes, a rectification mode and an inversion mode by using a preset direct current source reference voltage as a reference, according to an external voltage reference, and by using different turn-on working modes of the high-frequency inverter bridge.

Abstract: A high-frequency isolation alternating/direct current conversion circuit and a control method thereof are disclosed. The conversion circuit includes an alternating current source, a direct current source, a resonant capacitor, a high-voltage energy-storage filter, a high-frequency inverter bridge, a drive circuit, a resonant inductor, a high-frequency isolation transformer, a direct current side synchronous switch, a control circuit, and the like. The conversion circuit is made to be switched between two working modes, a rectification mode and an inversion mode by using a preset direct current source reference voltage as a reference, according to an external voltage reference, and by using different turn-on working modes of the high-frequency inverter bridge.