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Digital controllers are an interesting option for the next Voltage Regulator Module generation due to their wide programming possibilities. This paper discloses a very interested candidate to control DC-DC power converters, the Digital Signal Controller. For that matter, a study was done by carrying out simulations and experimental results. Moreover, an additional algorithm is given in order to show...
Embedded microprocessors require efficient supply management systems to optimize its power consumption and to enhance their calculation potentials. Typically, the modules performing this function are known as Voltage Regulator Modules (VRMs). It is widely adapted that current-programmed regulation techniques own leveraging skills in the control of this kind of power converters. However, these strategies...
Digital predictive techniques are nowadays an attractive option for current-mode controlled voltage regulator modules. This article examines the implementation of two digital predictive control laws and their application in a typical case for this kind of loads. The simulation results presented in this paper illustrate the pros and contras of both techniques.
Inductor current tracking in high-frequency DC/DC converters is not effortless, especially when high output currents and low output voltages are demanded by the load. This paper proposes a guideline to design proper digital current-mode controlled (CMC) point-of-load (PoL) converts obtaining good accuracies in the inductor current tracking. The main idea is to obtain a equivalent voltage image of...
This paper is focused on the design of a test-bank to develop high-frequency digital control laws for point-of-load converters. As a result, a high-frequency digital DC/DC converter prototype has been completed using a Freescalepsilas DSC as digital controller. During this exposition, we present the design guidelines to build this test-bank and how to adapt some state-of-the-art digital control laws...
The aim of this paper is to show how digital control laws for high-frequency DC/DC converters can be modeled for its application in a simple DSC evaluation board. Therefore, we have developed a specific test-bench for digital DC/DC converters permitting us an easy comparison among different control laws for Voltage Regulator converters. Each law is firstly simulated by means of Matlab/Simulink models...
This article presents a practical evaluation of some digital control laws applied in point-of-load converters. For that, we have developed a high-frequency digital DC/DC converters test bank. Control laws are studied used Simulink models and they have been implemented using a 16 bits DSC to validate them in high-frequency applications. This review lets to remark the pros and contras of each control...
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