Wolfgang Spitaler

Title: Wolfgang Spitaler: Patents in Electrical Engineering

Introduction

Wolfgang Spitaler is an inventor associated with Vienna, Austria, and Siemens Aktiengesellschaft. His recorded patent portfolio includes 3 patents.

Latest Patents

Spitaler’s listed patents include “Power rectifier circuit” and “Device for controlling the field current of DC motors.” The latter describes a system for controlling the field current of a DC motor supplied by an AC network, including when the motor operates above its normal speed through field weakening. It uses a phase-angle control circuit and a function-forming device that relates motor speed to a control variable. A function memory stores corresponding values in tabular form, with the relationship established during the motor’s initial startup. The control relationship can then be represented by linear interpolation between stored values or by a curve fitted to them.

Career Highlights

Spitaler’s listed work concerns electrical engineering, particularly power rectification and the control of DC motor field current. His association with Siemens Aktiengesellschaft connects his patent activity with a company active in electrical and industrial technologies.

Collaborations

Franz Ramlohr and Franz Wohrer are identified as Spitaler’s coworkers.

Conclusion

Wolfgang Spitaler’s recorded inventions focus on power circuitry and DC motor control, including a patented approach to managing field current across changing operating speeds.