Thảo luận:Điện tử/Linh kiện điện tử/Op Amp
Khuếch Đại Hiệu Hai Điện Thế
sửaAn operational amplifier is an integrated circuit of electronic components packaged together inside a chip with eight pins that can be used to amplify the difference of two input voltages.
Pin Number Function 1 Null Offset 2 Inverted Voltage 3 None Inveted Voltage 4 Negative Voltage Source 5 Not Used 6 Output 7 Positive Voltage Source 8 Not Used
Biểu Tượng
sửa- V+: (non-inverting input)
- V−: (inverting input)
- Vout: (output
- VS+: (positive power supply)
- VS−: (negative power supply)
Chức Năng
sửaThe main use of an operational amplifier is to amplify the difference of two input voltages:
Op Amp can also be used as Inverting or Non Invering Voltage Amplifier
Or as a Voltage Comparator of the two input voltages
- If V+ > V- Then
- If V+ < V- Then
- If V+ = V- Then