BLEND-OVER BETWEEN CCM AND DCM IN FORWARD BOOST REVERSE BUCK CONVERTER

A boost control apparatus (30) is provided with: a controlling device (330) configured (i) to perform first duty control by using a first control parameter if output current (IL) that flows through an inductor (L1) is not near zero, and (ii) to perform second duty control by using a second control p...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAMATSU, Naoyoshi, YAMAKAWA, Toshifumi, OKAMURA, Masaki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A boost control apparatus (30) is provided with: a controlling device (330) configured (i) to perform first duty control by using a first control parameter if output current (IL) that flows through an inductor (L1) is not near zero, and (ii) to perform second duty control by using a second control parameter if the output current is near zero, during one-side element control during which only either one of a first switching element (Q1) and a second switching element (Q2) is driven; a rate calculating device (310) configured to calculate a change rate of the output current to a change amount of a duty value in the first duty control and the second duty control; and a control determining device (320) configured to control said controlling device to perform the second duty control regardless of the output current, if the change rate is less than a predetermined value.