Submitted below ac load management by Phase angle control using Arduino by delayed triggering to opto-coupler(U3) interfaced triac (U4) for single phase load control using Arduino nano. Proteus file and the code for simulation are available at the bottom. For video watch at down below or use this link https://youtu.be/VpHoE_2MlEo Circuit Explanation for Phase angle […]
Phase angle control using Arduino useful 1 Read More »
Submitted below a very low-cost UPS for modem. Modems / WiFi routers are usually powered by an adaptor and while the utility power fails then internet connectivity is disrupted even if the power is interrupted for less than a second. Providing a commercial 500VA UPS only for the purpose is an expensive proposition. Small duration
ups for modem super cheap at 250 INR! Read More »
Optocouplers are used mostly in power electronics circuits to isolate the fatal mains utility voltage to that of the low dc voltage that the control circuit works. Therefore some call it optoisolators. They find use in control circuits feeding Thyristors,MOSFETs,IGBTs. Submitted below an audio visual for better understanding.
Optocouplers for AC & DC Read More »
Controlling AC power by delayed firing angle control is a very old and traditional method. Simple example is our electronic fan regulator. But this has one major drawback that it generates a lot of harmonics (62%THD)as compared to a chopper(2%THD). Presented below a chopper that is much more efficient. . Please watch the video
