4. MTBF and reliability
A legitimate user concern is the search for a "reliable" power supply. To try and specify this subjective notion, statisticians have defined two terms: MTBF (mean time between failure) and reliability itself.
4.1 MTBF calculated or demonstrated
Calculating MTBF is an extremely thankless task. It is described in MIL-HDBK-217F and its addenda. The calculation involves summing the failure rates of each individual component at operating temperature. This failure rate depends on its failure rate multiplied by its stress level. The result is , failure rate per million operating hours.
For the entire power...
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MTBF and reliability
Efficiency and cooling
Bibliography
In Engineering Techniques
Standards
- Radio interference supression of radio frequency equipment, determination of limits for industrial, scientific and medical equipment. - DIN VDE 0871 - 01-1991
- Electromagnetic compatibility. Requirements for household appliances, electric tools and similar apparatus. Part 1 : Emission ; Product family standard. - DIN EN 55014-1/AA - 08-2001
- Industrial, scientific and medical equipment (ISM). Guidelines for emission...
Organizations
International Telecommunication Union (ITU) http://www.itu.int
International Electrotechnical Commission (IEC) http://www.iec.ch
International Special Committee on Radio Interference (CISPR)
Federal Communications Committee...
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