| 摘要 |
A comparator (101), comprising: a power input end (1011) for inputting a power supply; input ends (1012 and 1013) of a first voltage to be compared and a second voltage to be compared for receiving the first voltage to be compared and the second voltage to be compared respectively; an offset voltage regulating circuit (202) for regulating an offset voltage; a comparator circuit (201) for comparing the first voltage to be compared with a third voltage to be compared to generate a comparison result, the third voltage to be compared being a sum of the second voltage to be compared and the offset voltage; and a comparison result output end (1014) for outputting the comparison result. |
