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公开(公告)号：US3863135A
公开(公告)日：1975-01-28
申请号：US37968773
申请日：1973-07-16
Applicant: IBM
CPC classification number: H02M3/07
Abstract: A transformerless direct current power supply having a regulated voltage output is disclosed. The supply uses cascaded sections of capacitive series voltage dividers in series to reduce and store full-wave recitifed DC input voltage which is then discharged in parallel at the desired output level. The charging and discharging of the cascaded capacitive series is regulated by a switching network driven by a feedback voltage derived from the output to regulate the charging of the capacitors in series and discharge of them in parallel.
Abstract translation: 公开了一种具有调节电压输出的无变压器直流电源。 电源串联使用电容串联分压器的级联部分，以减少和存储全波朗读的直流输入电压，然后在期望的输出电平上并联放电。 级联电容串联的充放电由一个由输出端产生的反馈电压驱动的开关网络进行调节，以调节电容器的串联充电并并联放电。
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公开(公告)号：DE68912274D1
公开(公告)日：1994-02-24
申请号：DE68912274
申请日：1989-10-03
Applicant: IBM
Inventor： GILLETT JOHN BRIAN , LOHREY FRED HELMUT , LORENZEN JERRY ALAN
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公开(公告)号：ZA845894B
公开(公告)日：1985-06-26
申请号：ZA845894
申请日：1984-07-30
Applicant: IBM
Inventor： GILLETT JOHN BRIAN
Abstract: Two connectors (13, 14) are used in opposition to connect electrically and physically to parallel edges of a printed circuit board (11). Moving a first actuator mechanism (16/17) on the first connector (13/14) moves the printed circuit board toward the opposite connector (14/13) to a fixed position defined by a stop (48) on the other actuator and then causes a closing wiping action of the contacts (15) of the first connector. A second actuator mechanism, located on the second connector, has operation substantially identical to that of the first mechanism except the printed circuit board does not move. The two connectors are preferably mechanically substantially identical and the actuation sequence is independent of the handle sequence. Another embodiment for contacting a single edge of a printed circuit board is disclosed wherein one of the aforementioned two connectors is replaced by a simple guideway and stop.
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公开(公告)号：DE3882328T2
公开(公告)日：1994-02-17
申请号：DE3882328
申请日：1988-09-16
Applicant: IBM
Inventor： GILLETT JOHN BRIAN , SPREEN JAMES HAROLD
Abstract: A regulated voltage electrical power system has a driving section and a driven section. The driving section includes a power transformer primary structure and a ripple current carrying, driving winding of a filter system for the smoothed outputs circuits of the power system, each of which includes a single turn, driven filter winding magnetically coupled to the driving winding by a multi-path core structure. Each driven filter winding links that part of the multi-path structure which corresponds in cross-sectional area to the relative ripple voltage imposed by the power transformer on it. The power transformer secondaries for the outputs of the power system are also of a single turn each, differing output voltages being achieved by provision of differing number of primary winding turns associated with the various outputs. Planar diodes and core gap-filling ferrite inserts are provided in the secondary winding structures.
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公开(公告)号：DE3882328D1
公开(公告)日：1993-08-19
申请号：DE3882328
申请日：1988-09-16
Applicant: IBM
Inventor： GILLETT JOHN BRIAN , SPREEN JAMES HAROLD
Abstract: A regulated voltage electrical power system has a driving section and a driven section. The driving section includes a power transformer primary structure and a ripple current carrying, driving winding of a filter system for the smoothed outputs circuits of the power system, each of which includes a single turn, driven filter winding magnetically coupled to the driving winding by a multi-path core structure. Each driven filter winding links that part of the multi-path structure which corresponds in cross-sectional area to the relative ripple voltage imposed by the power transformer on it. The power transformer secondaries for the outputs of the power system are also of a single turn each, differing output voltages being achieved by provision of differing number of primary winding turns associated with the various outputs. Planar diodes and core gap-filling ferrite inserts are provided in the secondary winding structures.
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Patent Agency Ranking
公开(公告)号：DE3682653D1
公开(公告)日：1992-01-09
申请号：DE3682653
申请日：1986-09-23
Applicant: IBM
Inventor： GILLETT JOHN BRIAN , SPREEN JAMES HAROLD
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公开(公告)号：DE3483209D1
公开(公告)日：1990-10-18
申请号：DE3483209
申请日：1984-12-04
Applicant: IBM
Inventor： GILLETT JOHN BRIAN , MIRAGLIA JOHN ALBERT
IPC: H01R12/89 , H01R24/00 , H01R13/193 , H01R23/68
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公开(公告)号：ZA8405894B
公开(公告)日：1985-06-26
申请号：ZA8405894
申请日：1984-07-30
Applicant: IBM
Inventor： GILLETT JOHN BRIAN
CPC classification number: H05K7/1402 , H01R12/7005 , H01R12/89
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公开(公告)号：DE3477714D1
公开(公告)日：1989-05-18
申请号：DE3477714
申请日：1984-07-16
Applicant: IBM
Inventor： GILLETT JOHN BRIAN
Abstract: Two connectors (13, 14) are used in opposition to connect electrically and physically to parallel edges of a printed circuit board (11). Moving a first actuator mechanism (16/17) on the first connector (13/14) moves the printed circuit board toward the opposite connector (14/13) to a fixed position defined by a stop (48) on the other actuator and then causes a closing wiping action of the contacts (15) of the first connector. A second actuator mechanism, located on the second connector, has operation substantially identical to that of the first mechanism except the printed circuit board does not move. The two connectors are preferably mechanically substantially identical and the actuation sequence is independent of the handle sequence. Another embodiment for contacting a single edge of a printed circuit board is disclosed wherein one of the aforementioned two connectors is replaced by a simple guideway and stop.
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