JP2008072857A5 - - Google Patents
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- JP2008072857A5 JP2008072857A5 JP2006250445A JP2006250445A JP2008072857A5 JP 2008072857 A5 JP2008072857 A5 JP 2008072857A5 JP 2006250445 A JP2006250445 A JP 2006250445A JP 2006250445 A JP2006250445 A JP 2006250445A JP 2008072857 A5 JP2008072857 A5 JP 2008072857A5
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- Prior art keywords
- switching elements
- value
- motor
- output
- unit
- Prior art date
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- 238000001514 detection method Methods 0.000 claims 3
- 239000003990 capacitor Substances 0.000 claims 2
- 230000000875 corresponding Effects 0.000 claims 2
- 241001442055 Vipera berus Species 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000009499 grossing Methods 0.000 claims 1
- 230000001172 regenerating Effects 0.000 claims 1
Claims (4)
該整流回路部により整流された電圧を平滑するコンデンサと、
複数のスイッチング素子及び各スイッチング素子にそれぞれ並列接続された複数のダイオードよりなり、複数のスイッチング素子のオン・オフ動作により前記コンデンサの直流電圧を交流に変換し、出力側のモータに供給するインバータ部と、
前記複数のスイッチング素子のオン・オフを制御するインバータ制御部と、
前記インバータ部の各アームのローサイドの各スイッチング素子に流れる電流をそれぞれ検出し、その値を電圧出力する複数の電流検出部と、
該複数の電流検出部により出力された電圧を加算する加算回路部と、
該加算回路部の出力値と予め設定された第1の値とを比較し、その比較結果に基づいて前記複数のスイッチング素子のオン・オフ動作を停止させる過電流検出信号を前記インバータ制御部に出力する比較器と
を備えたことを特徴とするモータ駆動装置。 A rectifier circuit that rectifies an AC voltage;
A capacitor for smoothing the voltage rectified by the rectifier circuit unit;
An inverter unit comprising a plurality of switching elements and a plurality of diodes connected in parallel to the respective switching elements, and converts a DC voltage of the capacitor into an alternating current by an on / off operation of the plurality of switching elements, and supplies the alternating current to the motor on the output side When,
An inverter control unit for controlling on / off of the plurality of switching elements;
A plurality of current detection units that detect currents flowing through the switching elements on the low side of the arms of the inverter unit and output the values of the currents;
An adder circuit that adds the voltages output by the plurality of current detectors;
An overcurrent detection signal for comparing the output value of the adding circuit unit with a preset first value and stopping on / off operations of the plurality of switching elements based on the comparison result is sent to the inverter control unit. A motor drive device comprising a comparator for outputting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006250445A JP4679477B2 (en) | 2006-09-15 | 2006-09-15 | Motor drive device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006250445A JP4679477B2 (en) | 2006-09-15 | 2006-09-15 | Motor drive device |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008072857A JP2008072857A (en) | 2008-03-27 |
JP2008072857A5 true JP2008072857A5 (en) | 2008-07-24 |
JP4679477B2 JP4679477B2 (en) | 2011-04-27 |
Family
ID=39293951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006250445A Active JP4679477B2 (en) | 2006-09-15 | 2006-09-15 | Motor drive device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4679477B2 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6266298B2 (en) * | 2013-10-23 | 2018-01-24 | 新電元工業株式会社 | Current detection circuit and motor control device |
JP6295426B2 (en) * | 2014-06-02 | 2018-03-20 | パナソニックIpマネジメント株式会社 | Washing machine |
JP6528080B2 (en) * | 2015-06-26 | 2019-06-12 | パナソニックIpマネジメント株式会社 | Washing machine |
CN106374731B (en) * | 2015-07-23 | 2019-10-18 | 乐星产电(无锡)有限公司 | Variable frequency drive, over-current protection method and device |
WO2017090079A1 (en) * | 2015-11-24 | 2017-06-01 | 三菱電機株式会社 | Inverter device and air conditioner |
US10218348B2 (en) * | 2016-01-22 | 2019-02-26 | Mitsubishi Electric Corporation | Control circuit |
KR102014185B1 (en) * | 2018-03-27 | 2019-08-26 | 엘에스산전 주식회사 | Apparatus for determining peak current in inverter |
CN114512961B (en) * | 2022-02-22 | 2023-11-10 | 北京控制工程研究所 | Limit working condition self-adaptive protection design method suitable for deep space sampling high-power direct current motor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001320894A (en) * | 2000-05-08 | 2001-11-16 | Matsushita Electric Ind Co Ltd | Motor drive device |
JP4062074B2 (en) * | 2002-01-28 | 2008-03-19 | 株式会社デンソー | Control method of three-phase brushless DC motor |
-
2006
- 2006-09-15 JP JP2006250445A patent/JP4679477B2/en active Active
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