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Geekcreit® Low ZVS 12-48V 20A 1000W High Frequency Induction Heating Machine Module 17% OFF Geekcreit® Low ZVS 12-48V 20A 1000W High Frequency Induction Heating Machine Module US$39.99 US$47.99 View It
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laserman 17/12/2016
This very functional inductive heater has become a hot item. You can do many things with this system. Because of high current/stability. best to use 4 X 12 VDC leadgel batteries of minimal 12 AH (better 17AH) IN SERIE to feed this system Use one of the batteries to power a fan for the electronic parts too. Switshing powersupplies are less /not suitable, the fast slope of the drained current can interfere / not starting oscillation. So be wise , use as alternative a 1KW 35VAC ringwound trafo, rectifiers and a lot of switshingproof elco's in parallel. A Variac can be used but start up in full mode and than reduce voltage. When cooling s OK and powersupply is sufficient the only big problem is to start the oscillationprocess (It is self oscillating). !000Watt is quite a lot, the smaller ones I have bought first are already nasty heaters wich can heat up a nail in seconds.
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  • laserman Have tested it today with 2X12VDC 12Ah lead-gel batteries in serie (24 VDC)In only a few seconds it made the middle piece of a teaspoon glowing.Because the coppercoil (madev of coppertube)) became hot, it is advisable to flow water through it to cool the coil itselve , that helps to lower the resistance of the coil itselve and reduce energy- loss of the system.A massive coil would warm up slower but the skineffect makes that the impedance will not be much lower at 150KHz.

    Reply 20/12/2016
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