This inventor holds 1 USPTO granted patent. Top assignee: Hanon Systems. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Songcheol Lee and Shared-Resource Motor and Heater Control
Introduction
Songcheol Lee is an inventor based in Daejeon, South Korea, associated with Hanon Systems. His listed patent concerns a circuit and control system for operating a three-phase motor and a heater separately or at the same time.
Latest Patents
Lee is credited with one patent: “Complex Motor and Heater Driving Circuit, and Control System Therefor.” The invention describes a drive circuit that uses shared switching resources to control a motor and heating unit. Its control unit operates the motor using switches in the first and second switching units and space-vector pulse-width modulation. For heater operation, it sets a power-control output value and modulates the third switching unit. When the motor and heater run concurrently, the system compares pulse-width-modulation duties and activates the corresponding switch in the third switching unit.
Career Highlights
Lee’s listed work is associated with Hanon Systems and focuses on coordinated motor and heater control. The patent’s approach supports separate or concurrent operation through a shared switching arrangement.
Collaborations
Lee’s listed coworkers include Min Sik Kim and Sang Hun Kim.
Conclusion
Songcheol Lee’s patent presents a shared-resource control system designed to operate a three-phase motor and heater independently or concurrently.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile