Voltage detection circuit and voltage detection method

A voltage detection circuit, comprising:

• a threshold setting module having a first input end, a second input end and a power supply end, wherein the first input end is configured to receive a voltage to be detected, the second input end is configured to receive a threshold regulation signal, and the power supply end is connected to a first voltage and is configured to set a voltage regulation range according to the threshold regulation signal, determine a first voltage regulation value in the voltage regulation range according to the voltage to be detected, and generate a control voltage according to the first voltage and the first voltage regulation value;
• and
• a voltage conversion module, wherein an input end of the voltage conversion module receives the control voltage through a first node, and is configured to output a first level in response to that the control voltage is greater than a preset value, and output a second level in response to that the control voltage is less than or equal to the preset value.