kashif_zealot
Newbie level 4
- Joined
- Mar 8, 2011
- Messages
- 7
- Helped
- 0
- Reputation
- 0
- Reaction score
- 0
- Trophy points
- 1,281
- Activity points
- 1,340
i am doing my final year projects from two months,i joined forums for my problems but i cannot get any appropriate sollutions.is there any professional who can able to solve my problem...
problem descripion
my project is automatic power factor improvement using PIC , first of all i need to detect zero crosings of voltage and load current to measure power factor.problem is that i cannot able to detect load currect zero crossing...as i am using CT its output is voltage which is in phase with current ,but this voltage is of millivolts .the circuit which i am using for voltage need PT 220/12V and it have three output terminals ground,positive,negative.it works well for voltage.but not work for load current,
this is my first step in the project where i am stucking for 2 months..i am very disappointed
problem descripion
my project is automatic power factor improvement using PIC , first of all i need to detect zero crosings of voltage and load current to measure power factor.problem is that i cannot able to detect load currect zero crossing...as i am using CT its output is voltage which is in phase with current ,but this voltage is of millivolts .the circuit which i am using for voltage need PT 220/12V and it have three output terminals ground,positive,negative.it works well for voltage.but not work for load current,
this is my first step in the project where i am stucking for 2 months..i am very disappointed
