219474 ⎘
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by using feedforward means
Sub-classes:COMMON MODE CONTROL FOR LOW DUTY CYCLE
#2Two differential amplifier configuration
#3Apparatus and methods for electronic amplification
#4Differential voltage sensing method
#5Differential voltage sensing system and method for using the same