Petronius on dreams: 300 years of English translations

No abstract available

Position Measurement in Industrial Drives by Means of Low-Cost Resolver-to-Digital Converter

A fully integrated board for resolver-to-digital conversion is proposed in this paper. It is based on a combined analog/digital circuit, which allows one to track the shaft angle of a standard resolver in a digital form. Furthermore, the board also provides the feeding signal for the resolver-rotor circuit. All the tuning and configuration settings, which allow one to adapt different kind of resolvers to the proposed system, can be easily implemented directly on the board. The final assembly is a compact low-cost resolver-to-digital converter. The entire board design and implementation are described in this paper. In addition, several tests at different resolver speeds have been performed for validation

AUTO-TUNING SELF-COMPATIBILITY OF POWER CONVERTERS

In this paper, an auto-tuning system, which takes into account the self-compatibility of power converters, is proposed. It is based on a start-up routine and a self-disturbances evaluation board, which selects the optimal switching frequencies for the power modules in order to avoid internal disturbances in terms of EMI between the power section and the control one. The entire test and tuning system does not require any field or current sensor, but just digital comparators and counters. This configuration allows to achieve a robust and low cost auto-tuning system for internal compatibility of power converters