Sinewave UPS using PIC16F72 | Homemade Circuit Projects Sinewave UPS using PIC16F72 Last Updated on February 24, 2020 by Swagatam The proposed sinewave inverter UPS circuit is built using PIC16F72 microcontroller, some passive electronic components and associated power devices. Sine Wave Inverter | Circuit Diagram With Full Explanation The project is a simple sine wave inverter circuit that produces 50Hz quasi-sine wave output using a single IC CD4047 and some discrete components, which makes it a very cost-effective solution. Sine wave inverter circuit description. Fig. 1 shows the sine wave inverter circuit of the MOSFET-based 50Hz inverter. Sinewave UPS Circuit using PIC16F72 Part-5 - Electronic Sinewave UPS Circuit using PIC16F72 Part-5 In this write-up we try to understand in detail regarding the various possible faults that could be encountered while constructing the proposed sinewave UPS circuit using PIC16F72. and how to troubleshoot these issues effectively through simple steps .