Table 5-3. Internal Op Amp
ParametersOp Amp # | Analog Function | Passive Components | Design Equations |
---|
2 | Low-pass filter | R2, R3, R5, R6, C13, C14, C17 |
|
Reference voltage bias | R1, R7 |
Differential amplifier input | R2, R3, R5, R6 |
Differential amplifier feedback | R1 |
Figure 5-5. Internal Op Amp
Configuration
Figure 5-6. Voltage Divider and Low-Pass
Filter for Phase Back-EMF
Thus, the theoretical maximum speed of the motor will be: