| 单词 | difference amplifier |
| 释义 | difference amplifier in Electrical Engineering (dɪfərəns æmplɪfaɪər) Word forms: (regular plural) difference amplifiers noun (Electrical engineering: Instrumentation, measuring, and testing) amplifierA difference amplifier is a device that amplifies the difference between two inputs, rejecting any signals common to both. The negative feedback into the difference amplifier allows the amplifier to compare the input to the actual output. The operational amplifier is used as a difference amplifier, resulting in an output voltage equal to the difference of the latter two signals. A difference amplifier is a device that amplifies the difference between two inputs, rejecting any signalscommon to both. |
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