KT04 type is used in three-phase fully controlled bridge rectifier and speed regulation circuit

Type KC04 is an integrated trigger circuit with sawtooth wave phase shifting . It has 16 pins in total. The output phase difference between pins 1 and 15 is
. The trigger pulse of 809; 8 is the synchronous power signal input terminal; 5 and 12 are connected to the DC power supply, using ±15V power supply; 9 is the
touch signal input terminal; 7 is the ground. The circuit of
  the KC04 integrated trigger circuit used in the three-phase fully controlled bridge rectifier and speed regulation system is shown in Figure 16-23. The output signal of
  the KC04 type integrated trigger circuit drives the output stage (tri-tube VTi~VTs) through the OR gate circuit composed of diodes VDi~VDiz.
After being amplified by the power of the output stage, it triggers the thyristor (the main circuit thyristor is not shown), and the pulse output
The box sequence is arranged in the order of numbers 18, 2#, 3#, 4#, 5#, and 6#, which trigger the 6 transistors in the main circuit respectively
.