Alternating current-direct current multiplexing power supply circuit and control method thereof, household appliance and storage medium

Abstract

The invention discloses an alternating current-direct current multiplexing power supply circuit and a control method thereof, a household appliance and a computer readable storage medium. The power supply circuit rectifies input alternating current through a rectification voltage-multiplying module to generate first direct current, or rectifies and multiplies voltage to generate second direct current; a PFC module processes the first direct current, the second direct current or input direct current to output a third direct current; a switching module switches the working state of a rectification voltage-multiplying module and / or the PFC module according to the type and the voltage amplitude of an input power supply so as to provide the first direct current, the second direct current or the third direct current to a load, so the input alternating current or direct current can be boosted, and the rectification voltage-multiplying module and the PFC module can be controlled according to the magnitude of the input voltage to obtain a target voltage; and therefore, the power supply circuit can adapt to a relatively wide input voltage range, and the adaptability of the power supply circuit is improved.

Description

technical field [0001] The present invention relates to the technical field of power supply circuits, in particular to an AC-DC multiplexing power supply circuit, a control method, a home appliance and a storage medium. Background technique [0002] The traditional power supply circuit usually adopts an uncontrolled rectification circuit. The uncontrolled rectification circuit is only composed of rectifier diodes without control function. When the input AC voltage is constant, the corresponding output voltage is also fixed. Therefore, if a certain target voltage needs to be obtained, then Only a fixed input voltage can be input, and it does not have a wide input voltage capability, which makes the circuit less adaptable to the input voltage. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, the first purpose of the present invention is to provide an AC-DC multipl...

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Problems solved by technology

[0002]Traditional power supply circuits usually use uncontrolled rectification circuits, which are only composed of rectifier diodes without control functions, and the corresponding output voltage when the input AC voltage is constant It is also fixed accordingly, so if a certain target voltage needs to be obtained, only a fixed input voltage can be input, and it does not have a wide input voltage capability, making the circuit less adaptable to the input voltage

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