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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
 Washington, D.C. 20549
 FORM 10-Q/A
 Amendment No. 1
 (Mark One)
 þ
    
    QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.
 For
the quarterly period ended September 30, 2005.
 or
 o
    
    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.
 For
the transition period from  to .
 Commission file number: 000-26966
 ADVANCED ENERGY INDUSTRIES, INC.
  Delaware
    
    84-0846841(State or other jurisdiction of incorporation 
or organization)
    
    (I.R.S. Employer Identification No.)
 1625 Sharp Point Drive, Fort Collins, CO
    
    80525(Address of principal executive offices)
    
    (Zip Code)
 (970) 221-4670
 þ o
 o o
  Large accelerated filer o
    
    Accelerated filer þ
    
    Non-accelerated filer o
    
    Smaller reporting company o(Do not check if a smaller reporting company)
 o þ




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TABLE OF CONTENTS  ITEM 6. EXHIBITSSIGNATUREExhibit 10.1Exhibit 31.3Exhibit 31.4    Table of Contents  EXPLANATORY NOTE
   
 ITEM 6. EXHIBITS
 3.1
    
    Restated Certificate of Incorporation, as amended. (1)3.2
    
    By-laws. (2)10.1
    
    Global Supply Agreement by and between Advanced Energy
Industries, Inc. and Applied Materials Inc. dated
August 29, 2005.*10.2
    
    Shipping Amendment to the Global Supply Agreement by
and between Advanced Energy Industries, Inc. and
Applied Materials Inc. dated August 29, 2005.* (3)31.1
    
    Certification of the Chief Executive Officer Pursuant
to Rule 13a-14(a) under the Securities Exchange Act of
1934, as adopted pursuant to Section 302 of the
Sarbanes-Oxley Act of 2002. (3)31.2
    
    Certification of the Principal Financial Officer
Pursuant to Rule 13a-14(a) under the Securities
Exchange Act of 1934, as adopted pursuant to Section
302 of the Sarbanes-Oxley Act of 2002. (3)31.3
    
    Certification of the Chief Executive Officer Pursuant
to Rule 13a-14(a) under the Securities Exchange Act of
1934, as adopted pursuant to Section 302 of the
Sarbanes-Oxley Act of 2002.31.4
    
    Certification of the Principal Financial Officer
Pursuant to Rule 13a-14(a) under the Securities
Exchange Act of 1934, as adopted pursuant to Section
302 of the Sarbanes-Oxley Act of 2002.32.1
    
    Certification of the Chief Executive Officer Pursuant
to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002. (3)32.2
    
    Certification of the Principal Financial Officer
Pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of
2002. (3)
 (1)
    
    Incorporated by reference to the Registrants Quarterly Report on Form 10-Q for the quarter
ended September 30, 2003 (File No. 000-26966), filed November 4, 2003.(2)
    
    Incorporated by reference to the Registrants Registration Statement on Form S-1(File No.
33-97188), filed September 20, 1995, as amended.(3)
    
    Incorporated by reference to the Registrants Quarterly Report on Form 10-Q for the quarter
ended September 30, 2005 (File No. 000-26966), filed November 7, 2005.*
    
    Confidential treatment has been granted for portions of this agreement.




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##### Table of Contents



SIGNATURE
  ADVANCED ENERGY INDUSTRIES, INC.Dated: November 1, 2011
    /s/ Danny C. HerronDanny C. HerronExecutive Vice President & Chief Financial Officer




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##### Table of Contents



INDEX TO EXHIBITS
 3.1
    
    Restated Certificate of Incorporation, as amended. (1)3.2
    
    By-laws. (2)10.1
    
    Global Supply Agreement by and between Advanced Energy
Industries, Inc. and Applied Materials Inc. dated
August 29, 2005.*10.2
    
    Shipping Amendment to the Global Supply Agreement by
and between Advanced Energy Industries, Inc. and
Applied Materials Inc. dated August 29, 2005.* (3)31.1
    
    Certification of the Chief Executive Officer Pursuant
to Rule 13a-14(a) under the Securities Exchange Act of
1934, as adopted pursuant to Section 302 of the
Sarbanes-Oxley Act of 2002. (3)31.2
    
    Certification of the Principal Financial Officer
Pursuant to Rule 13a-14(a) under the Securities
Exchange Act of 1934, as adopted pursuant to Section
302 of the Sarbanes-Oxley Act of 2002. (3)31.3
    
    Certification of the Chief Executive Officer Pursuant
to Rule 13a-14(a) under the Securities Exchange Act of
1934, as adopted pursuant to Section 302 of the
Sarbanes-Oxley Act of 2002.31.4
    
    Certification of the Principal Financial Officer
Pursuant to Rule 13a-14(a) under the Securities
Exchange Act of 1934, as adopted pursuant to Section
302 of the Sarbanes-Oxley Act of 2002.32.1
    
    Certification of the Chief Executive Officer Pursuant
to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002. (3)32.2
    
    Certification of the Principal Financial Officer
Pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of
2002. (3)
 (1)
    
    Incorporated by reference to the Registrants Quarterly Report on Form 10-Q for the quarter
ended September 30, 2003 (File No. 000-26966), filed November 4, 2003.(2)
    
    Incorporated by reference to the Registrants Registration Statement on Form S-1(File No.
33-97188), filed September 20, 1995, as amended.(3)
    
    Incorporated by reference to the Registrants Quarterly Report on Form 10-Q for the quarter
ended September 30, 2005 (File No. 000-26966), filed November 7, 2005.*
    
    Confidential treatment has been granted for portions of this agreement.