Low-voltage selection circuit based on asymmetric comparator

The invention discloses a low-voltage selection circuit based on asymmetric comparators, which comprises a comparator module and a logic selection module, a plurality of input voltages are input into a plurality of comparators in the comparator module for comparison, the plurality of comparators obtain a plurality of comparison results, the plurality of comparison results are sent to the logic selection module, and the logic selection module is connected with the logic selection module. The logic selection module performs logical AND on the plurality of comparison results to obtain a first control logic signal, and then performs negation on the first control logic signal to obtain a second control logic signal; and the first control logic signal and the second control logic signal control the voltage gating switch to output low voltage. According to the low-voltage selection circuit based on the asymmetric comparator, voltage judgment is carried out through the asymmetric comparator, the judgment result is se