Self-testing power supply apparatus, methods and computer program products
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Dec 29, 2005
app pub date -
Jun 29, 2004
filing date -
Jun 29, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A power supply apparatus, such as an on-line UPS, includes an AC/DC converter circuit having an input configured to be coupled to an AC source, a DC/AC converter circuit having an input coupled to an output of the AC/DC converter circuit by a DC link, and a bypass circuit operative to couple and decouple the output of the DC/AC converter circuit to and from the input of the AC/DC converter circuit. Power is transferred from the output of DC/AC converter circuit via the bypass circuit to conduct a test of the apparatus, such as a factory or field load test. For example, power may be circulated around a loop including the AC/DC converter circuit, the DC/AC converter circuit and the bypass circuit to conduct the test in order to test these components under load. A status of such components may be determined responsive to the test. In further embodiments, such components may be calibrated responsive to the test.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 16 Citation Count
- H02M Class
- 50 % this patent is cited more than
- 20 Age