EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the registration statements (Nos. 333-240335, 333-232864, 333-225500, 333-219760, 333-99423, 333-44790) on Form S-8 and the registration statement (No. 333-239041) on Form S-3 ASR of our reports dated February 28, 2023, with respect to the consolidated financial statements of Vicor Corporation and the effectiveness of internal control over financial reporting.

/s/ KPMG LLP

Boston, Massachusetts

February 28, 2023