公开(公告)号：US3596369A

公开(公告)日：1971-08-03

申请号：US3596369D

申请日：1969-12-22

Applicant: IBM

Inventor： DICKERSON JACK A ,  OTTAWAY GERALD H

IPC: G05F1/10 ,  H02M3/07 ,  H02M7/155 ,  H02M7/12

CPC classification number: H02M7/155 ,  H02M3/07

Abstract: A transformerless power supply is disclosed in which a source capacitor has its charge maintained at a fraction of the AC supply voltage and a plurality of sink capacitors are sequentially switched between a charging connection to the source capacitor and a discharging connection to a load circuit. The load circuit is isolated from the line at all times to maintain safety protection. The use of a comparatively high switching speed will reduce the filter requirements in the load circuit and this together with the elimination of the transformer results in very substantial size and weight reductions from conventional supplies. Voltage regulation at the load is achieved by controlling the voltage to which the sink capacitors are charged from the source capacitor.

公开(公告)号：US3234367A

公开(公告)日：1966-02-08

申请号：US23546162

申请日：1962-11-05

Applicant: IBM

Inventor： OTTAWAY GERALD H ,  BOLAND LAWRENCE J ,  BLAAUW GERRIT A ,  ROBERT KESLIN

IPC: G06F7/491 ,  G06F7/52

CPC classification number: G06F7/4917 ,  G06F2207/5352

公开(公告)号：US3229078A

公开(公告)日：1966-01-11

申请号：US20623962

申请日：1962-06-29

Applicant: IBM

Inventor： BOLAND LAWRENCE J ,  ROBERT KESLIN ,  OTTAWAY GERALD H ,  WRIGHT WILLIAM V

CPC classification number: H03M7/12

公开(公告)号：US3387262A

公开(公告)日：1968-06-04

申请号：US42500865

申请日：1965-01-12

Applicant: IBM

Inventor： OTTAWAY GERALD H ,  KLAUS TERTEL

IPC: G06F11/00 ,  G11C29/02 ,  G11C29/42

CPC classification number: G06F11/0763 ,  G11C29/02 ,  G11C29/42

公开(公告)号：US3328767A

公开(公告)日：1967-06-27

申请号：US33480363

申请日：1963-12-31

Applicant: IBM

Inventor： OTTAWAY GERALD H

IPC: G06F7/495 ,  G06F7/50 ,  G06F9/302 ,  G06F15/78

CPC classification number: G06F9/3001 ,  G06F7/495 ,  G06F15/78

公开(公告)号：US3397391A

公开(公告)日：1968-08-13

申请号：US50219665

申请日：1965-10-22

Applicant: IBM

Inventor： OTTAWAY GERALD H ,  HELMUT PAINKE ,  TITUS SCHELER ,  HELMUT WILL ,  WRIGHT WILLIAM V

IPC: G06F9/26

CPC classification number: G06F9/267

公开(公告)号：US3391394A

公开(公告)日：1968-07-02

申请号：US50219565

申请日：1965-10-22

Applicant: IBM

Inventor： OTTAWAY GERALD H ,  HELMUT PAINKE ,  THOMAS RAGLAND ,  TITUS SCHELER ,  HELMUT WILL ,  WRIGHT WILLIAM V

IPC: G06F9/26

CPC classification number: G06F9/265