Thank you. Good afternoon everyone and welcome to Vicor Corporation's earnings call for the first quarter ended March 31, 2019. I'm Jamie Simms, Chief Financial Officer, and with me here in Andover is Patrizio Vinciarelli, Chief Executive Officer. After the markets closed today, we issued a press release summarizing our financial results for the three month period ended March 31st. This press release has been posted on the Investor Relations page of our website www.vicorpower.com. We also filed a Form 8-K today related to the issuance of this press release. As always, I remind listeners this conference call is being recorded and is the copyrighted property of Vicor Corporation. I also remind you various remarks we make during this call may constitute forward-looking statements for purposes of the Safe Harbor Provisions under the Private Securities Litigation Reform Act of 1995. Except for historical information contained in this call, the matters discussed on this call, including any statements regarding current and planned products, current and potential customers, potential market opportunities, expected events and announcements, planned capacity expansions, as well as forecast sales growth, spending, and profitability are forward-looking statements involving risks and uncertainties. In light of these risks and uncertainties, we can offer no assurance that any forward-looking statement, will, in fact prove to be correct. Actual results may differ materially from those explicitly set forth in or implied by any of our remarks today. The risks and uncertainties we face are described in Item 1A of our 2018 Form 10-K, which we filed with the SEC on February 28, 2019. Please note, the information provided during this conference call is accurate only as of today, Tuesday, April 23, 2019. Vicor undertakes no obligation to update any statements including forward-looking statements made during this call, and you should not rely upon such statements after the conclusion of the call. A replay of the call will be available beginning at midnight tonight, through May 8. The replay dial-in number is 888-286-8010 followed by the passcode 88788951. In addition, a webcast replay of today's call will be available shortly on the Investor Relations page of our website. I will start this afternoon's discussion with a review of our financial performance for the first quarter, and Patrizio will follow with his remarks, after which we will take your questions. Beginning with consolidated results, as stated in today's press release, Vicor recorded total revenue for the first quarter of $65.7 million, representing a 10.8% sequential decline from our fourth quarter revenue of $73.7 million, and less than a percentage point increase from the $65.3 million recorded for the first quarter of 2018. As anticipated, Q1 revenue was sequentially lower, reflecting reduced demand for Advanced Products from the pause in datacenter buildout and an associated inventory correction. Both shipments and bookings were affected, as existing backlog was rescheduled from Q1 into Q2 and Q3. Brick Product revenue was flat sequentially, but approximately 15% higher than the figure for the first quarter of 2018. Advanced Products revenue declined just under 30% sequentially, reflecting the aforementioned backlog rescheduling. Revenue from other product categories within Advanced Products was generally steady for the quarter. Reflecting current circumstances, the Brick to Advanced Product revenue split for the first quarter was 71% Brick Products and 29% Advanced Products. Our turns volumes did not materially change sequentially. International revenue declined 18% sequentially, although international shipments of Brick Products were flat quarter-to-quarter. The decline reflects the higher percentage of Advanced Products that are shipped to offshore contract manufacturers. Because of the drop in such shipments, international revenue fell to 56% of revenue for Q1 from 61% for Q4. Although distribution revenue was steady in China sequentially, Chinese revenue as a whole declined to 22% of total revenue from the prior quarter's level of 33%. The primary driver of this decline was the lower direct volume of Advanced Products shipped to CMs, but an additional factor was the transfer of certain projects by CMs from their locations in China to other Asia Pacific locations in an effort to reduce exposure to current and potentially higher import tariffs. Consolidated gross margin as a percentage of revenue rose to 47.3% for Q1 from Q4's 45.9% and compares favorably to Q1 2018 gross margin of 46.3%. The Q1 improvement largely reflects a favorable mix, which offset lower absorption, brought about by the reduced volume, and an increase in Section 301 tariff charges, which totaled over $1 million for the quarter. We continue to assess the impact of Section 301 tariff charges and may add a tariff surcharge to the selling price of our products if the Chinese trade dispute is not resolved. Quarterly operating expenses were flat sequentially and year-over-year. Reflecting the decline in revenue, quarterly operating income declined 37%, totaling $4.5 million or 6.8% of revenue, in contrast to the prior quarter's $7.1 million, representing an operating margin of 9.6%. In Q1 2018, operating income was $3.7 million representing an operating margin of 5.6%. Our effective tax rate for the first quarter was 9%, reflecting continued utilization of federal net operating loss carry-forwards and tax credits. The bulk of our quarterly provision is associated with our 2019 tax estimates for state and foreign jurisdictions in which Vicor does not have NOLs for credits. Net income attributable to Vicor totaled $4.3 million for the first quarter, representing a diluted EPS of $0.10. This is in contrast to Q4 2018 net income of $6.9 million, representing diluted EPS of $0.17. For Q1 2018, we recorded net income of $3.9 million and diluted EPS of $0.10. Our fully diluted share count as of March 31st was 41,29,000 shares, which is the sum of both common share classes, representing approximately 29.3 million registered common shares and dilutive stock options, and approximately 11.8 million Class B common shares, which are neither registered nor listed. Turning to our balance sheet, cash and cash equivalents sequentially declined $3.9 million, ending the first quarter at $66.6 million. On a year-over-year basis, after substantial investments in additional capital equipment, cash increased by $23.9 million. The Q1 cash decline reflects a decrease in accounts payable, mostly associated with paying for much of the production equipment recently installed and an increase in finished goods inventory brought about by the customer rescheduling. Capital expenditures for Q1 were lower sequentially totaling $3.3 million, as certain equipment was not yet formally placed in service by March 31st. I will return to capital spending and capacity in a moment. Trade receivables, net of reserves, totaled $40.8 million at quarter-end, down sequentially 5%, with DSOs rising 46 days from 44 days. Inventories, net of reserves, increased 9% sequentially to $51.6 million, as mentioned, due to the higher finished goods and WIP inventories associated with delayed shipments. Our raw materials balance actually declined 4% sequentially. Annualized inventory turns fell to 3.1, reflecting the increased total balance and the lower volume. Concluding my review of the first quarter, total employee headcount as of March 31st stood at 1,022, up from 1,007 for the prior quarter. Full-time headcount was 985 at the end of Q1, up from 976 at year-end. I'll now provide an update on our capacity expansion. We believe we are close to receiving the approvals to proceed with our proposed 85,000 square foot addition to our Andover facility. As previously reported, we plan to break ground on this addition to our existing plant in 2019 and take occupancy in 2020, providing the space necessary to add manufacturing lines to meet forecast capacity requirements through 2021. Again, we anticipate internally funding both the building and the planned phases of equipment installation. While staying focused on the Andover factory expansion, we continue to assess alternatives for an additional facility in 2021. We are also pursuing opportunities to expand global manufacturing capacity with parties interested in acquiring a license to source Advanced Products into datacenter and/or automotive applications. Turning to the second quarter, our near-term outlook, since speaking to you eight weeks ago, remains essentially unchanged. While demand for Brick Products is firm, demand for Advanced Products will resume after the recent inventory correction has run its course and major design wins enter production in the second half of 2019. To conclude my remarks, we are pleased with Q1 financial results, given the quarter’s challenges. We are forecasting modest revenue growth for Q2, with sustained profitability and improved operating cash flow. Having offered this limited guidance, I'll remind listeners, as I do each time I speak with you, our operating and financial forecasts are subject to an unanticipated change, many of which are caused by factors and influences outside of our control. So, with that, I'll turn the call over to Patrizio Vinciarelli.