Super capacitor measuring circuit

• Main Authors: HUANG MING, LI SINING, FENG KAIQIN, LIANG RUJIN
• Format: Patent
• Language: Chinese; English
• Published: 19.06.2020
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a super capacitor measuring circuit which comprises a voltage division circuit, an isolation sampling circuit and a single-chip microcomputer system. The N super capacitors aresequentially connected in series end to end to form a super capacitor bank, and N is an integer greater than or equal to 2; wherein the isolation sampling circuit comprises a main isolation samplingcircuit and M-1 auxiliary isolation sampling circuits, and M is an integer greater than or equal to N; the first end of the voltage division circuit is connected to the cathode of the first super capacitor, the second end is connected to the anode of the Nth super capacitor, the third end is connected to one end of the main isolation sampling circuit, and the other end of the main isolation sampling circuit is connected to the single-chip microcomputer system. Each super capacitor in the first N-1 super capacitors is connected with one end of one auxiliary isolation sampling circuit, the supercapacitors are in one-to-o