A digital control technique for voltage regulation module (VRM) is investigated, which is based on a predictive current regulator. Due to the adaptive-voltage-positioning (AVP) of the VRM, the controlled variable includes a combination of output voltage and inductor current. Besides the predictive regulator, a disturbance observer is used for compensation of input voltage variations and any other source of errors, such as dead-times, parameter and model mismatches. Even if aimed to an integrated digital controller, experimental investigation has been performed using discrete components, implementing the digital control in a field programmable gate array (FPGA). Experimental results on a synchronous buck DC-DC converter confirm the properties of the predictive control.
Predictive Digital Control for Voltage Regulation Module Applications / DELLA MONICA, E.; Stefanutti, W.; Mattavelli, P.; Tedeschi, E.; P., Tenti; Saggini, S.. - 1:(2005), pp. 32-37. (Intervento presentato al convegno Int. Conf. on Power Electronics and Drives Systems (PEDS 2005) tenutosi a Kuala Lumpur nel December) [10.1109/PEDS.2005.1619656].
Predictive Digital Control for Voltage Regulation Module Applications
E. TEDESCHI;
2005-01-01
Abstract
A digital control technique for voltage regulation module (VRM) is investigated, which is based on a predictive current regulator. Due to the adaptive-voltage-positioning (AVP) of the VRM, the controlled variable includes a combination of output voltage and inductor current. Besides the predictive regulator, a disturbance observer is used for compensation of input voltage variations and any other source of errors, such as dead-times, parameter and model mismatches. Even if aimed to an integrated digital controller, experimental investigation has been performed using discrete components, implementing the digital control in a field programmable gate array (FPGA). Experimental results on a synchronous buck DC-DC converter confirm the properties of the predictive control.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
