Lightweight High Energy Density Capacitors for NASA AMPS and PPUs, Phase I

Metadata Updated: May 2, 2019

This NASA Phase I SBIR proposal addresses the development of lightweight, high energy density DC-link capacitors that are a key component of inverters used power processing units (PPUs). DC-link capacitors used in IGBT and MOSFET switching circuits are one of the largest and least reliable components in DC-DC and DC-AC inverter circuits. Tantalum capacitors used currently by NASA in such circuits, have significant parametric limitations in the temperature range of -125oC to >200oC. This development proposes the replacement of electrolytic capacitors with high temperature, solid state, Polymer Multilayer (PML) capacitors that have been recently developed for automotive inverter applications. PML polymer dielectrics can be used to produce capacitors with voltages in the range of 25V to 1000V. The high temperature PML polymers are amorphous with very high breakdown strength and can operate in a temperature range of -196oC to >200oC. PML capacitors are smaller than tantalums, they have 10X lower weight, lower leakage current, lower dissipation factor, lower inductance and lower equivalent series resistance (ESR). The Phase I development will focus in producing and evaluating PML capacitors designed for PPUs utilized in Hall thrusters and roll-out PV arrays for solar electric propulsion.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_93596
Maintainer
TECHPORT SUPPORT
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Datagov Dedupe Retained 20190501230127
Harvest Object Id def292db-8284-4fd9-bb32-3c227cb45f18
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2017-12-01
Homepage URL https://techport.nasa.gov/view/93596
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 975c69f3409643d91f9510ca4616d8efe6c97722
Source Schema Version 1.1

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