The non-source current/voltage separation amplifier circuit of transformer coupling type

Published:2011/7/1 21:56:00 Author:Borg | Keyword: amplifier circuit, transformer coupling | From:SeekIC

In the figure is the non-source current/voltage separation amplifier circuit of transformer coupling type. In the circuit, the bias branch of the input signal is taken as the power supply of the circuit, the input signal is a DC current of 4～20mA. The circuit is in PWM modulation, the total current consumption is under 4mA, and the circuit has no power for transformer coupling. PWM modulated signal is split in two signals of the same size by the transformer, see as the sloped line part of figure (b). The single peak value and the input signal of pulse waveform are in the positive ratio.



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