Application of multiple TC787 chips in multi-phase rectifier circuits

Application of multi-chip TC787 in high-power controllable rectifier devices: High-power rectifier
devices are commonly used equipment in electrochemistry, metallurgy and other industries. Most of these application fields are low
voltage and high current. Due to the current limitations of the single capacity of thyristors in China, multi-phase rectification is often used
to expand its output capacity. Figure 12-19 shows the schematic diagram of four TC787 used in a 24-phase high
-power rectifier circuit . In the figure, the given values ​​of TC787 all come from the output of the given integral link, and they all work with dual power supplies. The four sets of three-phase power supplies on the secondary side of the main rectifier transformer in the system have a phase difference of 15 in sequence. , the rectified output is a 24-pulse DC voltage.