| 摘要 |
This invention relates to the two lead separator of power impulses designed for use with the automatic analogue circuits as independent signal converter, or as a part of a the measuring converter, which feeds active double terminal placed at the converter's input, a standard strength power i.e. within 4 to 20 mA range is forced at its voltaric separated output through a converter linked via two lead line with the remote power source.The Polish patent specification No. 111 224 contains description of two lead separator of power impulses, with secondary winding of the separating transformer connected via modulator with one input of the differential amplifier, with its second input connected directly with one input terminal of the whole circuit and simultaneously via the feedback circuit with one output of the current regulator, whose inputs are connected with the output of differential amplifier.Second current regulator output is connected with second terminal of the whole circuit and this terminal is connected with generator, via stabilizer.The Polish patent specification No. 124 896 contains description of two lead separator equipped with voltage stabiliser loaded by multivibrator and transformer, with the stabiliser's element regulating quiescent current into two separate voltage level outputs. One of them is connected through a choke with the common terminal of two primary windings of the transformer. A condenser is connected between the above terminal and terminal common to the stabiliser's input and output, while the stabiliser's output is connected to the multivibrator with the controlling inputs of the keying elements.
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