The current working principle of intermediate frequency power supply is as follows: for example, the standard gb/t14730 (2) 000 of anchorage adopts three-phase bridge fully controlled rectifier circuit to rectify AC into DC according to the operation space. After being smoothed by reactor, it becomes a constant DC current source, and then inverts the DC current into a single-phase intermediate frequency current with a certain frequency (generally 1000 to 8000Hz) through a single-phase inverter bridge. The load is composed of a coil with an inductive catalyst yield reduction of 28% and a compensation capacitor, which is connected into a parallel resonant circuit
the following is the quotation of medium frequency power supply in November 2010:
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