The use of PWM in parametric models of induction heaters

The article investigates the possibility of using pulse-width control of parametric models of induction heaters, shows the models of pulse-controlled resistive elements and the results of simulation of their transient modes. A feature of the proposed circuit solutions is the use in macromodels of ideal keys controlled by the mode parameters of the circuit. In the environment of a circuit simulator, virtual PWM models are constructed that are suitable for use, both in the transient and in the steady state. The non-reactive nature of the modules ensures the accuracy and speed of the device in a wide frequency range, while observing the conflict-free behavior of the computing core with a variable iteration step. The modes of the device models are investigated in the time domain, the characteristics of the dynamics of control and controlled parameters are shown. The advantages and disadvantages of PWM control of parametric models are noted.