Universal analog quantity acquisition circuit

• Main Authors: JIA XINGBO, HAO QIWEI, HU MENGXUE, CHU YANBIN, XU PEICHEN, WANG KE
• Format: Patent
• Language: Chinese; English
• Published: 23.01.2024
• Subjects: BASIC ELECTRONIC CIRCUITRY; CODE CONVERSION IN GENERAL; CODING; DECODING; ELECTRICITY

The invention belongs to the technical field of power electronics, and particularly relates to a universal analog quantity acquisition circuit. Comprising a universal configuration circuit and two conditioning circuits, the universal configuration circuit comprises four resistors, the second end of R1 is grounded, the two ends of R2 are respectively connected with analog input signals, the second end of R3 and the first end of R3 are connected with a 2.5 V power supply, and the second end of R4 is grounded; the first conditioning circuit is composed of an operational amplifier M1A, the input positive end of the M1A is connected with the common end of the R2 and the R3, the input negative end of the M1A is connected with the output end of the M1A, and the power supply positive end of the M1A is connected with a 5V power supply; the second conditioning circuit comprises five resistors and an operational amplifier M1B, the two ends of R5 are connected with the output end of M1A, the first end of R6 and the negat