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what mosfet to use for an induction heater

neonelictro

Sep 30, 2022
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When selecting a MOSFET for an induction heater, there are three key considerations: peak current, voltage, and switching frequency. The peak current is determined by the design of the induction heater. For example, a MOSFET that can handle 1 kilowatt (kW) of power will require a peak current of 16.7 amperes (A). The voltage is determined by the supply voltage of the induction heater. The most common supply voltages are 240 volts (V) and 480 V. The switching frequency is determined by the operating frequency of the induction heater. The most common frequencies are 50 hertz (Hz) and 60 Hz. When selecting a MOSFET for an induction heater, it is important to consider all three of these factors to ensure that the MOSFET can handle the specific power requirements of the induction heater. Identification numbers for MOSFETs are typically found on the manufacturer's website. Also, I have references and can add if you want to.
 

73's de Edd

Aug 21, 2015
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Verdict . . . . . . . . . . . . .GUILTY . . . as charged . . . . . . . . . realistically, instead, expect 100-200 khz.
 

Harald Kapp

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Nov 17, 2011
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50 Hz or 60 Hz is the mains frequency. More details e.g. on Wikipedia (link).
 

bertus

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Nov 8, 2019
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Hello,

One might want to read this page about the effect of the frequency on the heating properties:

Bertus
 
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