Self-heating trim techniques for improved LDO accuracy over load and temperature
US9703306B2 · kind B2 · utility
3Cited by
9References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 10, 2014 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Aug 26, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/30
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In one example, a method for compensating for a temperature effect during operation of a voltage regulator circuit includes applying a load current at an output of the voltage regulator circuit, measuring a first output voltage at the output, measuring a reference current or voltage, increasing the load current, measuring a change in the reference current or voltage corresponding to the increased load current, measuring a second output voltage when the measured change in the reference current exceeds a threshold, and determining a temperature coefficient (TC) value based on the measured second output voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.