| 摘要 |
A comparator circuit for comparing two electric voltages, the comparator circuit comprising a differential amplifier with a current mirror as a load, characterized in that two current branches comprise two differential transistor amplifiers (2, 3) with two current mirrors (4, 5) as a load, in which the bases of the differential amplifiers (2, 3) represent the comparator input, and in that both current mirrors (4, 5) are each constituted by a diode (6, 9) and an associated transistor (7, 8), in which the comparator output value is either one of the currents through the diodes (6, 9) or one of the voltages across the diodes (6, 9) or the difference between the two diode voltages (6, 9).
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