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Indigenous Control, Global Standards

Indigenous control architecture with programme-grade reliability

BLDC Control UMC-B Series

(UMC-B500 | UMC-B2K | UMC-B5K)

The LECO UMC-B platform implements:

  • Sinusoidal PWM with Field-Oriented Control (FOC)

  • Closed-loop current and speed regulation

  • Low torque ripple and acoustic noise

  • Stable control across wide load and temperature ranges

These controllers are optimised for industrial and strategic environments where repeatability and reliability are critical.

SynRel Control UMC-S Series

The LECO UMC-S platform is built on a fully indigenous control and diagnostics stack.

Key elements include:

  • LUT-based SynRel control algorithms developed in-house

  • Direct alignment with measured motor characteristics

  • No reliance on proprietary motor models or foreign control IP

  • Stable startup, predictable torque behaviour, and robust fault handling

This approach enables rare-earth-free motor deployment with full programme confidence.

Advanced Motor Control Platforms

Axial Flux Control — LECO UMC-A

The LECO UMC-A platform extends LECO’s control architecture to support axial-flux motors used in high power-density industrial and strategic applications.

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PMSM Control — LECO UMC-P

The LECO UMC-P platform supports high-performance permanent magnet synchronous motor systems requiring precision control, high efficiency, and stable dynamic response.

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SRM Control — LECO UMC-R

The LECO UMC-R platform addresses switched reluctance motor applications where robustness, fault tolerance, and wide operating envelopes are essential.

Diagnostics & Lifecycle Support

LECO controllers incorporate an integrated diagnostics framework supporting:

  • Real-time fault detection and logging

  • Protection against electrical and thermal fault conditions

  • Event history for validation, service, and sustainment

  • Compatibility with external telemetry and condition-monitoring systems

All diagnostics and firmware frameworks are developed and maintained in-house.

Indigenous IP & Security

Across all controller families - UMC-B, UMC-S, UMC-A, UMC-P, and UMC-R:

  • Control algorithms and diagnostics are proprietary

  • Firmware IP is retained entirely by LECO CONTROLS

  • No dependence on foreign IP, licensed firmware, or export-restricted libraries

This ensures security, continuity, and long-term programme independence for OEM customers.

Programme-Oriented Design

LECO’s technology stack is designed to support:

  • OEM validation and qualification

  • Motor–controller matching and parameterisation

  • Pilot deployment and field trials

  • Production and long-term lifecycle support

This engineering model ensures that LECO controller platforms remain stable, supportable, and adaptable across the full life of OEM programmes.

Hardware Architecture

All LECO controller families share a unified hardware design philosophy:

  • Multilayer PCB design with EMI-aware layout

  • Robust power stage and gate-drive architecture

  • Industrial-grade MCU executing real-time control firmware

  • Thermal design suitable for sealed and rugged environments

These platforms are engineered to meet the electrical, thermal, and environmental demands of industrial and defence-adjacent applications.

Controller Architecture Philosophy

LECO CONTROLS designs motor controller platforms as long-life programme assets, not short-term components.


Every LECO controller is built around deterministic behaviour, application-level configurability, and predictable performance across real operating environments.

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All LECO controller families — LECO UMC-B, LECO UMC-S, LECO UMC-A, LECO UMC-P, and LECO UMC-R — share a common architectural foundation focused on:

  • Deterministic and stable control behaviour

  • Motor-specific parameterisation

  • Programme-grade reliability

  • Long-term availability and sustainment

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