6533b7d4fe1ef96bd1262874
RESEARCH PRODUCT
Architecture of a digital PFM controller for IC implementation
Giuseppe CapponiPatrizia LivreriG.m. Di BlasiFilippo Marinosubject
Analog controlEngineeringPulse-frequency modulationbusiness.industryDC-DC convertersLoop (topology)digital controllerComputer Science::Hardware ArchitectureControl theoryElectronic engineeringDigital controlArchitecturebusinessField-programmable gate arrayDigital control systemsPulse-width modulationdescription
This paper presents a digital controller architecture oriented to IC implementation. The classical digital pulse width modulator (D-PWM), using digital analog converter (DAC), is replaced with a Sigma-Delta (/spl Sigma//spl Delta/) modulator based on pulse frequency modulator (PFM) technique. Results of an investigation from a prototype for DC-DC converter, in terms of simulated and experimental performances, are reported, together with harmonic frequency investigation. The control function design is implemented on a field programmable gate array (FPGA). As a consequence of good agreement between simulated and experimental results, the proposed architecture realizes a digital control loop with dynamic performances comparable to analog control systems.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-10-04 |