Switching amplifier and method for estimating remaining lifetime of a switching amplifier
US10481207B2 · kind B2 · utility
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2References
12Claims
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Key dates
| Filing date | Mar 28, 2017 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Jan 19, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3852
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A switching amplifier includes a power device and a processing device. The power device is configured for powering a load and is comprised of a plurality of switches. The processing device configured to calculate a switch junction temperature for a bonding wire in each switch based at least in part on a power loss of each switch; generate a first accumulated fatigue damage of the bonding wire in each switch based on the switch junction temperature; and generate an estimated remaining lifetime of the switching amplifier based on the first accumulated fatigue damages of the bonding wires in each switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.