Adaptive Boost Converter Control for 3D Printer Offset and Joggling Correction

A design of a secondary power supply using Proportional-Integrative-Derivative (PID) controller has been implemented for better compensation, response and output in comparison with a conventional control strategy of a switch mode converter. A boost converter for an automobile battery as a power source with adaptive control has been introduced in the design. The offsetting and joggling of a 3D printer is manifested as electronic load during the testing. An analysis about the modes of controlling a switch mode power supply (SMPS) has been made using: (1) MATLAB for simulation of graphical presentation of the method and for analysis of transient response of the design and (2) NI Multisim for simulation of SMPS circuit including PID control and conventional SMPS circuit with a fundamental compensation circuit. The two approaches are compared in this paper. The simulations have shown that PID compensates for error in output response and decreases the response time of the converter circuit. Overall the entire design scheme is successfully verified through simulations and by prototyping that shown improvement on dynamic performance (response and efficiency) as compared with the conventional scheme. With the use of adaptive controller, the performance of the boost converter has improved mainly with reduced its response time (3.64ms settling time and 467μs peak time) ensuring its effectiveness in adapting to changes in the power demanded by the load.