SPEED_ID_IQ_PI

SPEED_ID_IQ_PI implements a Proportional-Integral controller for motor control systems that must regulate speed and current with closed-loop feedback. It is intended for Field Oriented Control architectures where the speed loop and the d-axis and q-axis current loops operate in sequence. Instead of requiring separate controller blocks, the core time-shares a single PI processing engine across these control quantities. This approach reduces hardware usage while preserving independent control behavior for each loop. The core drives the feedback value toward the reference input by combining proportional response with accumulated error correction. Built-in anti-windup logic helps maintain stable operation when the controller reaches output saturation. Initialization support lets designers preload a suitable operating value before enabling the loop, which helps avoid abrupt motor behavior during startup or state changes. Independent tuning inputs for each controlled quantity allow the shared controller structure to fit different loop dynamics within one design. The result is a compact control element that simplifies FPGA-based motor-control implementation while offloading repetitive real-time regulation from software. It delivers the most value in embedded motor-drive systems that need efficient closed-loop speed and current control in a hardware-based Field Oriented Control path.