Application of TCA785 in thyristor AC voltage regulation system
Source: InternetPublisher:酷到被通缉 Keywords: AC voltage regulator thyristor TCA785 Updated: 2021/04/02
Used in thyristor AC voltage regulation system. Thyristor AC voltage regulation systems
are widely used in voltage regulation and speed regulation systems of high-power electrolytic plating devices and AC motors
. The principle circuit of TCA785 used in such systems is shown in Figure 12-9. The figure only shows the schematic diagram of a single-phase AC voltage regulation circuit composed of one piece of TCA785. A three- phase AC voltage regulation system
can be formed
by using the same three circuits . In the figure, in order to enhance the triggering capability and
facilitate the application of high-power thyristors , the output capability of the TCA785 is expanded, and
a pulse transformer is used for isolation to completely isolate the main loop from the phase-shift control circuit .
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