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Robust High Average Power Modulator

Award Information

Agency:
Department of Energy
Branch:
N/A
Award ID:
99512
Program Year/Program:
2010 / SBIR
Agency Tracking Number:
95688
Solicitation Year:
N/A
Solicitation Topic Code:
14 f
Solicitation Number:
N/A
Small Business Information
Diversified Technologies, Inc.
35 Wiggins Ave. Bedford, MA -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2010
Title: Robust High Average Power Modulator
Agency: DOE
Contract: DE-FG02-10ER85856
Award Amount: $99,498.00
 

Abstract:

The modulators for the Spallation Neutron Source at Oak Ridge National Laboratory are the highest-average-power modulators in the world. These modulators are not yet reliable, despite ten years of development. There are failures in the switching transistors of the high-power inverters and in the resonant capacitors across these transistors. There is also a limitation fundamental to the design: the inverters switch the full current 30 times during each pulse, which is done to compensate for the droop. These full-current pulses dissipate substantial power in the transistors, raising their temperature and limiting their reliability. We will design a modulator with a single switch array. This is not vulnerable to inverter failures, nor does it have the resonant capacitors that can fail. Finally, the switch closes and opens only once per pulse, which means lower temperatures in the transistors, and correspondingly higher reliability. DTI

Principal Investigator:

Ian Roth
Dr.
7812759444
roth@divtecs.com

Business Contact:

Michael Kempkes
Mr.
7812759444
kempkes@divtecs.com
Small Business Information at Submission:

Diversified Technologies, Inc.
35 Wiggins Avenue Bedford, MA 01730

EIN/Tax ID: 042992321
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No