Abstract: A power inductor includes a winding and a metal magnetic powder core. The metal magnetic powder core is configured to support the winding, and the winding uses a metal conductive sheet. During assembly, the metal magnetic powder core is integrated with the winding through pressing, the metal magnetic powder core wraps the winding, and the metal magnetic powder core is insulated from the winding. The winding has a first pin and a second pin, and the first pin and the second pin are exposed on different surfaces of the metal magnetic powder core. Pins are separately disposed on two different surfaces of the power inductor. In addition, the winding is formed by integrally pressing the metal conductive sheet and the metal magnetic powder core.

Abstract: Embodiments of a degradation phenomenon treatment method based on a photovoltaic module and a related device are disclosed. A high frequency signal is applied to the photovoltaic module when a degradation phenomenon occurs in the photovoltaic module to protect the photovoltaic module and suppress or eliminate the degradation phenomenon. The degradation phenomenon refers to degradation of electricity generation efficiency of the photovoltaic module under effect of an electric potential. Embodiments of the degradation phenomenon treatment method and the device resolve issues associated with a declined electrical energy conversion capability and decreased electricity generation efficiency of a photovoltaic module caused by a surface polarization phenomenon, a potential induced degradation (PID) phenomenon occurring in the photovoltaic module, or both.

Abstract: Embodiments of a degradation phenomenon treatment method based on a photovoltaic module and a related device are disclosed. A high frequency signal is applied to the photovoltaic module when a degradation phenomenon occurs in the photovoltaic module to protect the photovoltaic module and suppress or eliminate the degradation phenomenon. The degradation phenomenon refers to degradation of electricity generation efficiency of the photovoltaic module under effect of an electric potential. Embodiments of the degradation phenomenon treatment method and the device resolve issues associated with a declined electrical energy conversion capability and decreased electricity generation efficiency of a photovoltaic module caused by a surface polarization phenomenon, a potential induced degradation (PID) phenomenon occurring in the photovoltaic module, or both.

Abstract: A voltage transforming device is provided, which includes: a first voltage transforming module, configured to perform a pre-stage voltage transformation on an input DC voltage to output an isolated DC voltage, in which the pre-stage voltage transformation includes a primary transformation that converts the input DC voltage to a to-be-transformed AC voltage, a working period of the primary transformation includes a first half period and a second half period, and a dead time exists when a first half period and a second half period are switched between each other; a capacitor filtering module, configured to perform capacitor filtering compensation on the isolated DC voltage in the dead time to output a stable intermediate DC voltage; and a second voltage transforming module, configured to perform at least two separate post-stage voltage transformations on the intermediate DC voltage to output DC voltages required by at least two loads.

Abstract: A voltage transforming device is provided, which includes: a first voltage transforming module, configured to perform a pre-stage voltage transformation on an input DC voltage to output an isolated DC voltage, in which the pre-stage voltage transformation includes a primary transformation that converts the input DC voltage to a to-be-transformed AC voltage; a capacitor filtering module, configured to perform capacitor filtering compensation on the isolated DC voltage in the dead time to output a stable intermediate DC voltage; and a second voltage transforming module, configured to perform at least two separate post-stage voltage transformations on the intermediate DC voltage to output DC voltages required by at least two loads. A voltage transforming method and a power supply system are also provided. Thereby, the decoupling of the pre-stage and post-stage working modes is achieved, and the interference suffered during voltage transformation is reduced.