| 摘要 |
A method and apparatus are disclosed for inferring amplifier load current from an internal control voltage governing a reference voltage in a multi-reference amplifier. Multi-reference amplifiers typically use internally-regulated references for application to the output stage. In that the output devices of these regulators exhibit limited gain or transconductance, internal voltage variances can be observed as a function of reference load current. This invention solves such problem at negligible additional cost.
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