Realization of voltage frequency converter and microcomputer interface

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin
微盟ME2188A33PG
Single chip microcomputer STM32L151CCU6
TP-IP4220CZ6 5V 0.35PF breakdown voltage 6V SOT
KT2520K26000DCW28QAS import spot

Voltage to frequency converter circuit capable of interfacing with a microcomputer

As shown, the V/F converter includes a power conversion circuit that converts from 5V to ±15v and a V/F high-precision converter. When it is connected to a microcomputer such as a single-chip microcomputer or a single trigger, it can be used without the expensive and complicated A/D converter. This circuit is first converted into a digital pulse frequency by the analog voltage reference F=K1V linear law, and then by the computer. Converting to a corresponding digital quantity by pressing D=K2F is simple, inexpensive, and highly accurate.



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