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Questions tagged [zvs]

Zero-Voltage Switch driver, a.k.a. Mazzilli oscillator

-4
votes
1answer
51 views

About zero voltage switching boost converter designing [closed]

I am developing zero voltage switching in a boost converter for input 48 V and current is 20 Ah. Also: output power is 60 W, output voltage is 200 V, output maximum current is 0....
1
vote
0answers
58 views

How is the power in induction heaters regulated?

While building an induction heater based on a series lc circuit i started to question myself how im going to control the power going into the lc circuit. Im planning on using a PLL driver to always ...
0
votes
0answers
95 views

tank circuit drawing current at no load when in resonance (induction heater)

I'm currently building an induction heater, and mainly interested how it works and why it works, my induction heater is coupled to the work coil which is an LC circuit. Now, if i get near resonance ...
1
vote
1answer
151 views

How to control power output from a ZVS driver?

I am trying to carry out heat treatment of Steel cylinders. I want to set up my own heat treatment apparatus. I am using the popular ZVS (Zero Volt Switching) driver for this. I bought this device. ...
2
votes
2answers
246 views

ZVS driver charging capacitor bank

I built this ZVS driver to make some big high voltage sparks a while ago. It worked off three voltages 24V, 50V, and 80V and had no issues. The only part of it that got really hot were the 1kohm 3W ...
0
votes
1answer
251 views

High Voltage ZVS Driver

I built my first ZVS driver a while ago and had some fun making big arcs before I blew up the mosfets trying to make some alterations for induction heating. When it comes to this stuff I dont know ...
1
vote
0answers
53 views

ZVS troubleshooting waveform

I have been running various different ZVS based flybacks for all kinds of uses (jacobs ladders, SSTCs, etc.), however, for some reason, I am now getting mosfet heating, which was never apparent before ...
0
votes
2answers
794 views

ZVS LC Frequency

I recently bought an ZVS driver from AliExpress.com It's about this model.L1 and L2 Choke are each 93μH,C1 and C2 are 0.33 μF each.I want to determine the operating frequency of the device.On the ...
1
vote
1answer
121 views

What could be causing ZVS imbalance?

I am using a ZVS driver to test some properties of induction and power transfer. I have never PREVIOUSLY had a problem with MOSFET heating in my designs. Today I changed one coil for another larger ...
1
vote
1answer
2k views

Current Output for ZVS Flyback Transformer

What is the typical current output for high voltage of ZVS flyback transformer or how to properly measure it? Update with the schematic, the fly-back transformer is typical one used in old CRT TV;
0
votes
0answers
188 views

mazzilli zvs both igbt failure

I try to build mazzili zvs with 2 IGBT toshiba MG75Q2YS40 75A 1200v. For the each fast diode, I use 2 pieces DSEC60-06 A 600v 30A in series to get 1200v. for this, I use 2 power source: 12 volt for ...
1
vote
2answers
2k views

ZVS Driver - Why does so much current need to flow through the diodes?

Here is a diagram for a simple ZVS driver: So as the voltage one side of the LC circuit goes up, it pulls down the gate of the MOSFET on the opposite side, through the diode (D3 and D4). The current ...
2
votes
1answer
6k views

What is the meaning of zero voltage switching (ZVS) and zero current switching (ZCS)?

I was reading about induction heating circuits in a electronics textbook and saw the terms ZVS and ZCS which are abbreviation ...
0
votes
0answers
555 views

How to use a ZVS voltage booster to create the Jacob's ladder?

How to use this ZVS voltage booster to create the Jacob's ladder? I bought it from the internet (eBay): Description: This is the design of a flyback foreigner drive circuit for ...
8
votes
4answers
2k views

What is a flyback?

Trying to find this answer is so difficult that I can't even tell whether What is the difference between a transformer and a coupled inductor? is asking the same thing. Some reading suggests that a "...
0
votes
1answer
3k views

ZVS Driver design and initialization

I'm fascinated by zero voltage switching (ZVS) drivers. So I've been playing with simulations of them in Falstad. Two things I don't understand: How is the oscillation initiated in an actual ZVS? ...
1
vote
1answer
649 views

Voltage spikes with ZVS full bridge

I am designing a DC/DC converter. I chose the fullbridge topology. The requirements are as follows: Vin = 75 - 125 Vdc Vout = 200V P = 600W Fs = 100 Khz The basic schematic is as follows: I use ...
0
votes
1answer
4k views

ZVS induction heater MOSFET failure?

I'm an electrical engineering student and I've been super excited to put a zvs induction heater together. I finally got all my parts, turned it on, and smoked a MOSFET almost instantly. Happened ...
0
votes
2answers
2k views

Would the FCA47N60F work for a ZVS flyback driver?

I have built a few flyback drivers from 555 controlled to the ZVS. I always have one problem, the power transistors keep burning out. For the ZVS driver, I used the IRFP250 and keep having the problem ...
3
votes
2answers
1k views

Troubleshooting ZVS flyback failure

I built a ZVS flyback driver a couple months ago, and it worked great and amazed people with the arcs it managed to create. I used 2 IRFP250 MOSFETs and the results were great. One day I was wanting ...
2
votes
2answers
4k views

Getting Right parts and building ZVS flyback correctly

I recently built a 555 timer flyback driver. I used 2 IRFP450 MOSFET's in parallel to drive it and I got pretty good arcs. Something always seemed to fail, and I always was buying another 555 chip or ...
3
votes
1answer
4k views

P-channel MOSFET ZVS Flyback Driver

I want to make a ZVS flyback driver, but all the sites say to use 2 n-channel MOSFETs and I only have one powerful n-channel MOSFET. I have a bunch of p-channel MOSFETs, specifically, 2 of powerful ...