I have put together an extensive tutorial at with schematics for building a 3 and 12kw unit.DAINICHI NEKKEN CO.
Dainichi Heater English For Brotbackautomat Pizzateig Manual With PicturesThere is a user manual with pictures and text of all. Shopping Plazas, English Bookstore and various sites. Dainichi Heater English For Brotbackautomat Pizzateig Manual For ToyotaDainichi Heater English Manual For Toyota; - Cartas Militares Portugal Free. The tutorial covers theory, components and assembly of some of critical components. Dainichi Heater English For Brotbackautomat Pizzateig How To Design ItI will go over the main steps here to give you an idea of what goes into a project like this and how to design it so you dont blow any mosfets or IGBTs. This Instructable presumes you have a good understanding of electronics and induction heaters. As an aside, I have put together a very accurate low-cost Watch me put it up against a standard name-brand using liquid nitrogen for the test. The basic components are the inverter, driver, coupling transformer and RLC tank circuit. This is an electrical device that changes the direction of DC current to AC current. Above you can see the shielding that is used to protect the mosfet gate drive from any stray EMF. Stray EMF causes noise, which results in high-frequency switching. Many layers of copper are used to allow them to carry over 50A of current. Also note the large aluminum water-cooled heat sinks on each side. I originally used fan-cooling, but to deal with this power I have small pond pumps moving plain water through the aluminum heat sinks. I also have thin mica pads underneath the mosfets to ensure there is no conduction through the sinks. An inverted and non-inverted driver moves a 15v voltage high and low to set up an alternating signal in a gate-drive transformer (GDT). The diode on the mosfet gate acts to limit spikes and the gate-drive resistor minimizes oscillations. Ideally, you want the fastest rise and fall times on the gate, reducing heat. However, if the signal is not dampened you get overshoot and oscillations, which will destroy the mosfet. If you look up snubber circuit you will get more information. Diodes D3 and D4 help protect the mosfets from reverse currents.
0 Comments
Leave a Reply. |