Washington, D.C. 20549



Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

Date of Report: September 30, 2009
(Date of earliest event reported)

Vicor Corporation
(Exact name of registrant as specified in its charter)
(State or other jurisdiction
of incorporation) 0-18277
(Commission File Number) 04-2742817
(IRS Employer
Identification Number)
25 Frontage Road, Andover, Massachusetts
(Address of principal executive offices)   01810
(Zip Code)
(978) 470-2900
(Registrant's telephone number, including area code)
Not Applicable
(Former Name or Former Address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02. Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers

On September 11, 2009, the Board of Directors (the "Board") of Vicor Corporation (the "Company") elected Liam K. Griffin to the Board, effective October 1, 2009. Consistent with the Company's policy, he will serve (a) until the 2010 annual meeting of stockholders, at which time he is reelected to the Board or his successor is elected, or (b) until his earlier death, resignation or removal. The Board has determined Mr. Griffin satisfies the independence requirements set forth in Marketplace Rule 4200(a)(15) of NASDAQ listing standards. The Company is not aware of any transaction requiring disclosure under Item 404(a) of Regulation S-K.

A copy of the press release announcing Mr. Griffin's election to the Board is filed as Exhibit 99.1 to this Current Report.

Item 9.01. Financial Statements and Exhibits

(a) Financial statements:
(b) Pro forma financial information:
(c) Shell company transactions:
(d) Exhibits
            99.1       Press Release of Vicor Corporation dated September 30, 2009


      Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: September 30, 2009

By:  /s/ James A. Simms                    
     James A. Simms
     Chief Financial Officer

Exhibit Index Exhibit No. Description 99.1 Press Release of Vicor Corporation dated September 30, 2009