Communication for adaptive control

Abstract: Ericsson developed the signal processing methods to be used in the digital power to increase the performance and the functionality of the converter. In the continuation of that the method of identifying the load of the DC/DC converter was developed in this project. The aim was to develop the algorithm that controls and communicate with the DC/DC converter “BMR450”. A current sensing circuit was been made for the voltage measurement in the DC/DC converter across the “inductor” in one part of this project. In this research a program was made in LabView for the communication between the DC/DC converter and LabView via PMBus. This thesis work was based on the “National Instrument Data Acquisition PC-6111 (NI DAQ PCI-6111)” hardware and the “3E CMM” evaluation kit from the Ericsson. A “Point of Load (POL)” was also included with the 3E CMM evaluation board. Both these hardware’s could be controlled from their own software’s shipped with them. We use the LabView to control and communicate with these hardware’s in order to do the “real time” communication. In this report the method of communication with these hardware’s is explained in detail. How to use the PMBus protocol to communicate with the DC/DC converter by using the LabView is also explained. The problem during this work was "to be able to communicate with (two) different hardware's in the same GUI". The LabView was used to control and communicate with these (two) different hardware's. The idea behind using the LabView was that the LabView works very well with the NI hardware’s. We developed a GUI in LabView which was able to communicate with the second hardware (3E CMM with POL) also. So it became possible to communicate with these different hardware's we are using, in the same GUI using LabView. This study report proposes a solution in LabView which communicate with hardware's PCI 6111 and POL in a same GUI. The GUI which is made in LabView can perform calculations in the computer and then send instructions to the dedicated converter BMR 450 via PMBus. As the LabView provides a very good GUI, it was very interesting and efficient to deal with these hardware's (we were using in this project) in the same GUI created in LabView.