An induction heater is a key piece of equipment used in all forms of induction heating. Typically an induction heater operates at either medium frequency (MF) or radio frequency (RF) ranges.
Four main … See more

The basic principle involved in induction heating was discovered by Michael Faraday as early as 1831. Faraday's work involved the use of a switched DC supply provided by a See more

Due to its flexibility and potential frequency range, the valve oscillator based induction heater was until recent years widely used throughout industry. Readily available in powers from 1 kW to 1 MW and in a frequency range from 100 kHz to many MHz, this type of … See more

The voltage-fed inverter features a filter capacitor on the input to the inverter and a series resonant output circuits. The voltage-fed system is … See more

An induction heater typically consists of three elements.
Power unit
Often referred to as the inverter or generator. This part … See more

Radio frequency (RF) induction generators work in the frequency range from 100 kHz up to 10 MHz. Most induction heating devices (with induction frequency control) have a frequency range of 100 kHz to 200 kHz. The output range typically incorporates 2.5 … See more

In the early days of induction heating, the motor-generator was used extensively for the production of MF power up to 10 kHz. While it is possible to generate multiples of the supply frequency such as 150 Hz using a standard induction motor driving an AC generator, … See more