Power supply circuit and power supply device

A power supply device, comprising a power supply circuit, wherein the power supply circuit comprises:

• an input circuit, configured to modulate an input voltage into a first working voltage and a second working voltage, and output the first working voltage and the second working voltage;
• a low voltage circuit, connected to the input circuit, and configured to generate a first output voltage based on the first working voltage and output the first output voltage:
• a high voltage circuit, connected to the input circuit, and configured to generate a second output voltage based on the second working voltage and output the second output voltage;
• an isolation circuit, connected to the high voltage circuit and the low voltage circuit, and configured to output the first output voltage, and configured to isolate the low voltage circuit from the second output voltage higher than a preset isolation voltage according to the preset isolation voltage when the high voltage circuit outputs the second output voltage;
• and
• a control circuit, connected to the high voltage circuit and the low voltage circuit, and configured to respectively control the high voltage circuit and the low voltage circuit to generate the second output voltage and the first output voltage.