22-02-2013, 11:55 AM
OPAMP AS ALL PASS FILTER
OPAMP AS ALL.docx (Size: 15 KB / Downloads: 17)
OBJECTIVE: - Study to design All Pass Filter using op-amp.
EQUIPMENT:-
1. OPT-01 Trainer kit.
2. Power Supply.
3. Patch cords.
4. DSO.
5. Function Generator.
THEORY:-
ALL-PASS FILTER
As the name suggests, an all pass flirter passes all frequency components of the input signal without attenuation, while providing predictable phase shifts for different frequencies of the input signal. When signals are transmitted over transmission lines such as telephone wires they undergo change in phase. To compensate for these phase changes, All-passfilters are required. The all–pass filters are also called delay equalizers or phase correctors. Phase shift between input and output voltages.