Q: What is the concept behind this project?
A: The concept behind this project is to provide uninterrupted power supply from any of the available supply
Q: Can the lamp be replaced by any other load?
A: Yes, any load with rating up to 200W can replace the lamp.
Q: What is the family of microcontroller is used?
A: A 40 pin microcontroller from 8051 family is used in this project.
Q: Does this project work on different supplies?
A: We don’t supply all four sources of supply in the project but only one source with 4 relays which are capable of taking supply from 4 different sources. So you can use any other 3 sources if available at your end. Please watch the video carefully.
Q: What is the formula for calculating smoothing capacitor value?
A: There is some approximated formula .Peak to peak ripple voltage = Load current in amps / (2*line frequency in hertz *capacitance in farads). But as rule of thumb for 1 A current 1000uF is best. Thus it is load dependent.
Q: What to do when the lamp fails and what is the maximum lamp rating that can be used?
A: If the lamp fails one can use any lamp or bulb which is used in homes up to 100W. We suggest you to go for low watt bulbs.