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Title:
SERVO AMPLIFIER HAVING POWER REGENERATING FUNCTION
Document Type and Number:
Japanese Patent JP2009225497
Kind Code:
A
Abstract:

To provide a servo amplifier which has a power regenerating function that can achieve the optimization (downsizing), the cost reduction, and the energy saving of a device, by being able to avoid an excessive specification of device structure.

An AC-DC converting section (converter section) 11 and a DC-AC converting section (inverter section) 12 are integrated, and the AC-DC converting section (converter section) 11 and the DC-AC converting section (inverter section) 12 are integrated by the connection of a DC link 16. The DC link 16 is constituted by a short bar or screwing, for example. Moreover, a power semiconductor 15 is arranged on the surface of a heat sink 17. The integrated structure of this AC-DC converting section (converter section) 11 and the DC-AC converting section (inverter section) 12 is so arranged on the heat sink 17 as to catch the power semiconductor 15. For the AC-DC converting section (converter section) 11, it is also possible to select and attach an optimal specification one.


Inventors:
MATSUBARA SHUNSUKE
IWASHITA HEISUKE
HORIKOSHI SHINICHI
SUZUKI NAOYUKI
Application Number:
JP2008064169A
Publication Date:
October 01, 2009
Filing Date:
March 13, 2008
Export Citation:
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Assignee:
FANUC LTD
International Classes:
H02P27/06; H02M7/48; H02P3/18; H02P5/00; H02P21/36
Domestic Patent References:
JPH11289793A1999-10-19
JPH09121592A1997-05-06
JP2004180393A2004-06-24
JP2004180427A2004-06-24
JP2001261246A2001-09-26
JP2007223798A2007-09-06
Attorney, Agent or Firm:
Takemoto Matsushi
Hideo Sugiyama
Koichi Yuda
Uozumi Takahiro
Naohiko Teshima
Mitsuo Shiraishi