Location History:
- Helsinki, FI (2022)
- Espoo, FI (1999 - 2023)
Company Filing History:
2 out of 2,634 
1 out of 705 
1 out of 6 Years Active: 1999-2023
Title: Petri Havanto: Innovator in Electrical Drive Systems
Introduction
Petri Havanto is a notable inventor based in Espoo, Finland. He has made significant contributions to the field of electrical drive systems, holding a total of five patents. His work focuses on enhancing the safety and efficiency of electrical systems, particularly through innovative circuit designs.
Latest Patents
Havanto's latest patents include the "Safe Torque Off (STO) circuit and method for STO circuit." This invention relates to a Safe Torque Off circuit that features an input for receiving signals and multiple channels with switches, level conversion circuits, and isolation circuits. Each channel is designed to operate safely by turning on and off based on the switch's status. Another significant patent is for an "Electrical drive system with independent diagnostics." This system includes an inverter and an electrical machine, with a method for controlling the system based on machine current and voltage signals. The method ensures that if there is a deviation in speed estimates, a fault reaction is activated to maintain safety.
Career Highlights
Throughout his career, Petri Havanto has worked with prominent companies such as ABB Schweiz AG and Nokia Telecommunications Oy. His experience in these organizations has allowed him to develop and refine his innovative ideas in electrical engineering.
Collaborations
Havanto has collaborated with notable professionals in his field, including Kim Molin and Harald Kaaja. These partnerships have contributed to the advancement of his projects and patents.
Conclusion
Petri Havanto's contributions to electrical drive systems and his innovative patents demonstrate his expertise and commitment to enhancing safety and efficiency in technology. His work continues to influence the industry and inspire future innovations.