TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Four-Quadrant Converter with the Insulated Gate Bipolar Transistors
(Convertor reversibil cu tranzistoare bipolare cu grilă izolată)
Vol LVIII • No. 2bis/2006
Gheorghe Băluţă
Technical University "Gh. Asachi? of Iasi
e-mail: gbaluta@tuiasi.ro

 Keywords   half-bridge chopper, IGBT gate drive circuit, PWM command, D.C. motor.

 Abstract
A reversible D.C. drive system, which employs a four-quadrant converter with the insulated gate bipolar transistors (IGBT), is presented. The converter circuit employs a ?half-bridge" configuration. The operation of the converter was tested at a command frequency of [1÷10]KHz. Except at very high power levels, the four-quadrant chopper has certain advantages such as high operational frequency, smooth and linear control, high efficiency and fast response.

 Rezumat
Se prezintă un convertor reversibil de tip "semipunte? realizat cu tranzistoare bipolare cu grilă izolată (IGBT). Comanda bipolară în tensiune a IGBT-ului se realizează cu un circuit de comandă conceput cu componente discrete, protecţia la suprasarcină cu traductoare cu effect Hall (Module LEM), iar semnalele PWM complementare cu "timp mort? sunt generate de un bloc digital realizat cu circuite CMOS.



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