This is the most reasonable solution consistent with the original requirement. However, I believe that the values are not optimized and the actual values can be tweaked for the desired output.
A high value resistor (say 100K- not computed) may be connected in parallel with C1 and a surge protector may be used for better performance.
The circuit looks very close to useful, optimisation would be lowering the power in the R's and using the least sized components, however if the supply has to work over 200 - 265Vac - then there will be penalties to pay in both these areas...
This is the most reasonable solution consistent with the original requirement. However, I believe that the values are not optimized and the actual values can be tweaked for the desired output.
A high value resistor (say 100K- not computed) may be connected in parallel with C1 and a surge protector may be used for better performance.
A perfect circuit diagram will really help people. Not only me but most of the person who works with electronics. Sometimes we need small circuit in small size, this will really be helpful if we all try to solve the problems and can make a best circuit.
Without doing any detailed analysis, try to figure out "qualitatively" the positive features of the circuit. Look for features and you will suddenly understand.
Although it uses more number of components, it has some robustness designed into.
Compare it with the two in post #25 and you will know what I am saying!!