Intermediate frequency furnace rectification pulse:

Features: dual modulation pulses, two pulses separated by 60 °, each modulation pulse is a sequence of 4 ~ 8 small pulses, with a total width of about 1000 μS. The pulse amplitude is generally 4 ~ 8V, and the small pulse width should be greater than 100μS.

Phase shift range of Intermediate frequency furnace control circuit:

Using a dual trace oscilloscope, one trace observes a certain phase (phase A, B or C) of the secondary side of the synchronous transformer, and the other trace observes the corresponding tube (1, 3 or 5 # KP). When the power adjustment potentiometer rises from zero to the maximum , The position of the pulse relative to the synchronous voltage is moved from the position of (A) to the position of (B).