When making servo systems with a power op amp, there is a temptation to use it for frequency shaping to stabilize the servo loop. This is a circuit for implementation the servo amplifier. This is the figure of the circuit.
This motor/tachometer servo gives an output speed proportional to input voltage. A low-level op amp is used for frequency shaping while the power op amp provides current drive to the motor. Current drive eliminates loop phase shift due to motor inductance and makes high-performance servos easier to stabilize. [Circuit’s source: National Semiconductor Notes].
This motor/tachometer servo gives an output speed proportional to input voltage. A low-level op amp is used for frequency shaping while the power op amp provides current drive to the motor. Current drive eliminates loop phase shift due to motor inductance and makes high-performance servos easier to stabilize. [Circuit’s source: National Semiconductor Notes].
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