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1. 发明专利

JP4918795B2 Power electronics equipment 有权
公开(公告)号：JP4918795B2
公开(公告)日：2012-04-18
申请号：JP2006073164
申请日：2006-03-16
申请人：富士電機株式会社
发明人：弘幸吉村
IPC分类号： H02M1/08
CPC分类号： H01F19/08 , H01F17/0013 , H01F2019/085 , H01L2224/48137 , H01L2924/00011 , H01L2924/00014 , H01L2924/10252 , H01L2924/10253 , H01L2924/10271 , H01L2924/10272 , H01L2924/10329 , H01L2924/1033 , H01L2924/10331 , H01L2924/10335 , H01L2924/10375 , H01L2924/10522 , H01L2924/1305 , H01L2924/13055 , H01L2924/181 , H01L2924/207 , H01L2924/3011 , H02M1/08 , H02M7/538 , H03K17/0828 , H03K17/18 , H03K17/567 , H03K17/6871 , H03K17/691 , H01L2924/00 , H01L2224/45099 , H01L2924/0002 , H01L2924/00012 , H01L2924/01004
摘要： Power electronics equipment includes air-cored insulating transformers inserted between a control circuit grounded to a vehicle body and an upper arm biased at a high voltage, and air-cored insulating transformers between the control circuit grounded to the vehicle body and the lower arm biased at a high voltage. Each of the air-cored insulating transformers includes a primary winding and a secondary facing to each other. The power electronics equipment facilitates improving resistance against hazardous environments, suppressing the deterioration by aging, reducing the adverse effects of noise caused by external magnetic flux, and transmitting and receiving signals while insulating the low and high voltage sides electrically from each other.

2. 发明专利

JP4900019B2 Isolation transformer and power conversion equipment 有权
公开(公告)号：JP4900019B2
公开(公告)日：2012-03-21
申请号：JP2007110810
申请日：2007-04-19
申请人：富士電機株式会社
发明人：勝典上野 , 弘幸吉村 , 雅晴江戸
IPC分类号： H01F17/00 , H01F30/00 , H02M1/08 , H02M3/155
CPC分类号： H01F17/0013 , H01F27/2804 , H01F27/323 , H01F30/08 , H01F41/041 , H01F2038/006 , H01L23/5227 , H01L28/10 , H01L2924/0002 , H01L2924/09701 , H02M1/08 , H01L2924/00

3. 发明专利

JP5353395B2 Signal transmission circuit and power conversion equipment 有权
公开(公告)号：JP5353395B2
公开(公告)日：2013-11-27
申请号：JP2009096192
申请日：2009-04-10
申请人：富士電機株式会社
发明人：弘幸吉村
IPC分类号： H02M1/08
摘要： PROBLEM TO BE SOLVED: To improve the accuracy of transmission of a transmitting signal by eliminating the influence of noise accompanying a change in a magnetic field. SOLUTION: A signal transmitting circuit includes a set pulse gate circuit 12a, which is closed for a predetermined time from the point of time when the pulses of a set signal S102 pass. It prevents the pulses of the set signal S102 from being transmitted to an N-channel field effect transistor Tr1, at an interval which is shorter than the predetermined time, thereby limiting the excitation interval of the exciting coil of the insulating transformer TL1 for setting. It includes a reset pulse gate circuit 12c, which is open until the pulses of the reset signal S103 pass immediately after the pulses of the set signal S102 pass. It prevents noise from being transmitted to an N-channel field effect transistor Tr2 as pulses of the reset signals S103 by mistake after the pulses of the reset signal S103 pass, while surely passing the pulses of the reset signal S103 corresponding to the set signal S102. COPYRIGHT: (C)2011,JPO&INPIT

4. 发明专利

JP5076725B2 Isolation transformer and power conversion equipment 有权
公开(公告)号：JP5076725B2
公开(公告)日：2012-11-21
申请号：JP2007210837
申请日：2007-08-13
申请人：富士電機株式会社
发明人：雅晴江戸 , 勝典上野 , 弘幸吉村
IPC分类号： H01F19/00 , H01F30/00
CPC分类号： H03K17/18 , H01F27/2804 , H01F27/323 , H03K17/0828 , H03K17/567 , H03K17/691 , H03K2017/0806

5. 发明专利

JP5360019B2 Temperature measuring device of power semiconductor device 有权
公开(公告)号：JP5360019B2
公开(公告)日：2013-12-04
申请号：JP2010186545
申请日：2010-08-23
申请人：富士電機株式会社
发明人：弘幸吉村
IPC分类号： G01K7/00 , G01K7/01
摘要： PROBLEM TO BE SOLVED: To provide temperature measurement equipment of a power semiconductor device capable of simultaneously detecting the disconnection abnormality and short-circuit abnormality of a temperature detection part in a power semiconductor device. SOLUTION: A pulse width modulation circuit 76 installed in chip temperature detection circuits 13 and 14 for detecting the chip temperature of a power semiconductor device configured such that power switching elements 5 and 6 and diodes DU2 and DD2 for temperature detection are installed in a silicon chip includes a triangular wave generation circuit 78 and a comparator IC5 for comparing a triangular wave signal output from the triangular wave generation circuit with an input signal to output a pulse width modulation signal. The upper limit value and lower limit value of the triangular wave signal to be output from the triangular wave generation circuit 78 are set beyond the range of the forward voltage of the diodes for temperature detection when constant currents within the temperature measurement range of the power switching elements are supplied. COPYRIGHT: (C)2012,JPO&INPIT

6. 发明专利

JP5245924B2 Signal transmission circuit and power conversion equipment 有权
公开(公告)号：JP5245924B2
公开(公告)日：2013-07-24
申请号：JP2009053131
申请日：2009-03-06
申请人：富士電機株式会社
发明人：弘幸吉村
IPC分类号： H04L25/02 , H02M1/08 , H04L25/493

7. 发明专利

JP4894604B2 Air-core type insulated transformer, the signal transmission circuit and a power converter using the air-core type insulated transformer 有权
公开(公告)号：JP4894604B2
公开(公告)日：2012-03-14
申请号：JP2007118187
申请日：2007-04-27
申请人：富士電機株式会社
发明人：弘幸吉村
IPC分类号： H01F17/02 , H01F19/04 , H01F30/00 , H02M1/08

8. 发明专利

JP4857967B2 Power electronics equipment 有权
公开(公告)号：JP4857967B2
公开(公告)日：2012-01-18
申请号：JP2006188038
申请日：2006-07-07
申请人：富士電機株式会社
发明人：弘幸吉村
IPC分类号： H02M1/08 , H04L25/02

9. 发明专利

JP5151235B2 The isolation transformer of the drive unit and the power conversion device 有权
公开(公告)号：JP5151235B2
公开(公告)日：2013-02-27
申请号：JP2007118186
申请日：2007-04-27
申请人：富士電機株式会社
发明人：弘幸吉村
IPC分类号： H02M3/155

10. 发明专利

JP5061716B2 Noise elimination circuit 有权
公开(公告)号：JP5061716B2
公开(公告)日：2012-10-31
申请号：JP2007130915
申请日：2007-05-16
申请人：富士電機株式会社
发明人：弘幸吉村
IPC分类号： H03K17/16 , H03K5/1252 , H03K17/00

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