公开(公告)号：US3443194A

公开(公告)日：1969-05-06

申请号：US3443194D

申请日：1967-09-14

Applicant: IBM

Inventor： CIELO JOHN R

IPC: G05F1/62 ,  H02M3/28 ,  H02M3/335 ,  H02M3/337 ,  H02M3/32

CPC classification number: H02M3/28 ,  G05F1/62 ,  H02M3/33569 ,  H02M3/3378

公开(公告)号：US3348124A

公开(公告)日：1967-10-17

申请号：US42268164

申请日：1964-12-31

Applicant: IBM

Inventor： CIELO JOHN R

IPC: H02M7/515

CPC classification number: H02M7/5155

公开(公告)号：US3553620A

公开(公告)日：1971-01-05

申请号：US3553620D

申请日：1967-12-20

Applicant: IBM

Inventor： CIELO JOHN R ,  HOFFMAN HARRY S JR

IPC: G05F1/62 ,  H02M3/28 ,  H02M3/335 ,  H02M3/337 ,  H01F21/08

CPC classification number: H02M3/28 ,  G05F1/62 ,  H02M3/33569 ,  H02M3/3378

Abstract: FIG-01 A DC-TO-DC POWE CONVERTER INCORPORATING A COMBINED TRANSFORMER AND INDUCTOR DEVICE COMPRISES OF A THREE-LEGGED MAGNETIC STRUCTURE HAVING AN AIR GAP IN THE CENTER LEG AND PRIMARY AND SECONDARY WINDINGS ARRANGED ON THE THREE LEGS TO PROVIDE COMBINED COOPERATIVE TRANSFORMER AND INDUCTO/R ACTION. THE PRIMARY AND SECONDARY WINDINGS ARE EACH OF PUSH PULL CONFIGURATION, AND IN ONE FORM THE COOPERATING PRIMARY AND SECONDARY WINDING PUSH ARE POLED AND LOCATED TO PROVIDE MMF-BUCKING ACTION APLYING THE ENTIRE PRIMARY MMF ACROSS THE INDUCTOR LEG, WHILE IN ANOTHER FORM ONLY THE CORE MAGNETIZING MMF IS SEEN ACROSS THE INDUCTOR LEG, AND AN ADDITIONAL PROMARY WINDING IS PROVIDED TO BOOST THE FLUX IN THAT LEG. IN EACH CASE THE INDUCTOR LEG HAS AN AIR GAP TO PROVIDE IT WITH SIGNIFICANTLY HIGHER RELUCTANCE THAN THAT OF THE REMAINDER OF THE MAGNETIC CIRCUIT.

公开(公告)号：US3694726A

公开(公告)日：1972-09-26

申请号：US3694726D

申请日：1970-03-30

Applicant: IBM

Inventor： CIELO JOHN R ,  HOFFMAN HARRY S JR

IPC: H02M3/337 ,  H02M3/28

CPC classification number: H02M3/3378

Abstract: A DC-to-DC power converter incorporating a combined transformer and inductor device comprised of a three-legged magnetic structure having an air gap in the center leg and primary and secondary windings arranged on the three legs to provide combined cooperative transformer and inductor action.

公开(公告)号：US3551858A

公开(公告)日：1970-12-29

申请号：US3551858D

申请日：1967-06-14

Applicant: IBM

Inventor： CIELO JOHN R

IPC: H03H1/00 ,  H01H7/14

CPC classification number: H03H1/0007 ,  H03H7/427

公开(公告)号：US3341767A

公开(公告)日：1967-09-12

申请号：US40071264

申请日：1964-10-01

Applicant: IBM

Inventor： CIELO JOHN R

IPC: H02M7/515 ,  H03K3/352

CPC classification number: H02M7/5155 ,  H03K3/352