6533b7d2fe1ef96bd125f472
RESEARCH PRODUCT
Small-Signal Modeling of a Controlled Transformer Parallel Regulator as a Multiple Output Converter High Efficient Post-Regulator
Juan B. EjeaAgustin FerreresJ.a. CarrascoEnrique Masetsubject
Forward converterEngineeringLow-dropout regulatorSwitched-mode power supplyBuck converterbusiness.industryVoltage regulatorDistribution transformerControl theoryBoost converterElectronic engineeringVoltage regulationElectrical and Electronic Engineeringbusinessdescription
This paper presents a post-regulator based on the use of a controlled transformer, which adds or subtracts an additional voltage to the output filter of a converter in order to regulate its output voltage. So, their actuation is complementary to that of more known post-regulators, such as the magnetic amplifier (magamp) and synchronous switch post-regulator (SSPR), because the regulation is achieved by controlling the voltage across the filter inductor instead of its charge time. Besides, the post-regulator processes the power in parallel to the one flowing from input to output and only handles a percentage of it. The post-regulation by controlled transformer is suitable of being employed in any isolated PWM power converter and combines a good efficiency and the easiness of design of classical switched power supplies. The work describes the post-regulation strategy for obtaining two outputs independently regulated, and presents a model to obtain the control transfer function and the cross-impedance expressions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-01-01 | IEEE Transactions on Power Electronics |