Scanning circuit based on two hardware analog switches

• Main Authors: LUO CHAOYI, LI YINSHENG, PAN ZHEN
• Format: Patent
• Language: Chinese; English
• Published: 13.12.2024
• Subjects: BASIC ELECTRONIC CIRCUITRY; CALCULATING; CODE CONVERSION IN GENERAL; CODING; COMPUTING; COUNTING; DECODING; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

The utility model belongs to the technical field of integrated circuits, and particularly relates to a scanning circuit based on two hardware analog switches, which comprises a pressure sensor matrix, a microprocessor, an upper connection scanning circuit, a lower connection scanning circuit and a data acquisition module. The up-connection scanning circuit comprises an up-connection analog switch, an input port and an output port are respectively connected with row terminals of the pressure sensor matrix, a common end is grounded, and a channel selection end is connected with the microprocessor; the lower scanning circuit comprises a lower analog switch, an input port and an output port are respectively connected with column terminals of the pressure sensor matrix through divider resistors, a common end is connected with a reference level, and a channel selection end is connected with the microprocessor; the input end of the data acquisition module is connected between the divider resistors and the pressure s