A wide input voltage power supply module includes a first power input terminal (108), a second power input terminal (110), a rectifier circuit, a rectifier and filter circuit (100), and a converter circuit (1). The converter circuit (1) is connected to the first and the second power input terminals (108, 110) through the rectifier circuit, and is connected to the output terminals of the power supply module through the rectifier and filter circuit (100). The converter circuit (1) includes a first converter (11) and a second converter (12). In the case of a low-voltage operation mode, the first converter (11) is connected in parallel with the second converter (12). In the case of a high-voltage operation mode, the first converter (11) is connected in series with the second converter (12).
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