Power Heart: Power Module
The power supply system of the servo drive is like the circulatory system of the human body, with a three-stage conversion architecture ensuring efficient energy transmission:
Rectifier Unit: Converts AC power to DC power, using intelligent filtering technology to eliminate voltage fluctuations.
Bus Capacitor Bank: Like a reservoir, it smooths energy pulses, with a typical capacity between 1000-4700μF.
Inverter Module: Modulates DC power into three-phase AC power through IGBT chips, with a switching frequency up to 20kHz.
Motion Brain: Control Circuit
This PCB board, covered with chips, houses the drive's intelligence:
Main Control Chip: A 32-bit processor calculates position commands in real time with a 0.1ms cycle.
Drive Logic: The PWM signal generation circuit controls the waveform accuracy of each phase current.
Protection Circuit: A triple protection network against temperature, overcurrent, and undervoltage ensures safe system operation.
Nerve Endings: Feedback System
The key to closed-loop control lies in these sensitive sensing elements:
Encoder Interface: Decodes 2048-line encoder signals, with a positioning accuracy of ±1 pulse.
Current Sensor: Hall effect elements monitor three-phase current deviations in real time.
Communication Module: CAN/Ethernet interface enables millisecond-level command transmission.
