What are servo pulse amplifiers, and what are they for?
Servo pulse amplifiers are variously known as “servo boosters”, “servo pulse boosters”, and even “servo boost amplifiers”. Whatever you like to call them, the ServoStation has 8 of them and each one consists of: • A level detector to reject electrical noise, • A limiting amplifier to square up the received signal, and • A balanced, high-current, push-pull output stage. The TTL input thresholds allow the direct connection of 3.3V, 3.0V and even 2.7V logic, avoiding the need for any additional level conversion circuitry. The low-impedance output stages allow the ServoStation to drive long cable runs out to distant servos, or multiple servos per output.
