The ZVS Driver
Intro: The ZVS Driver
Everybody who is interested in high voltage herd about the zvs driver for the flyback transformer.
Parts:
2x IRFP250 n-fet
2x 12v zenner diodes
2x 470ohm resistors
2x 10kohm resistors
2x 400v fast diodes
1x inductor 200uH
1x 250v capacitor 0.68uF or higher
Parts:
2x IRFP250 n-fet
2x 12v zenner diodes
2x 470ohm resistors
2x 10kohm resistors
2x 400v fast diodes
1x inductor 200uH
1x 250v capacitor 0.68uF or higher
STEP 1: Assembly
Mount mosfets on a large heatsink,
Solder everything togather
Solder everything togather
STEP 2: Fineshed Assembly
Everything ready to be connected to power supply.
STEP 3: Use for the Driver
It can be used as a power supply for the tesla coil or it can be used as an inductin heater ( for the induction heater try a 300v with 1uF or higher)
33 Comments
gdawg98 8 years ago
could this support a 70V 200A DC power supply for a induction heater to make a induction furnace
103 6 years ago
no DEFINITELY not what the heck do you want with a 14000 watt inductionheater? This circuit can handle a maximum power of around 600 watts
NoelA11 6 years ago
the other obvious use for this circuit is for a induction heater
YunusK20 6 years ago
i want to build step down circuit.
input voltage, about 5-15 volt, 2 ampere or less.
output voltage, about 1-0,5 volt (or less), but producing 10-40 ampere.
i want to build a phyrography soldering iron by short circuiting the output.
i was made one using ohmic heating but not satisfied, the heat cannot be focused on tip.
can you guide me the modification of your circuit please?
can the flyback driver to be turn on/off rapidly?
I want to combine it with PWM driver so the power can be adjusted easily.
Wolf6774 8 years ago
aclark17 7 years ago
I've heard of this problem being related to not enough voltage to drive the MOSFETs, have you tried going over 12v?
GyurikaK 8 years ago
SallahS 7 years ago
You can use up to 4 transistors in parallel (that is the maximum I tested, more is surely possible). Be sure to take a bunch out of the same batch. Add a 0.1Ohm resistor in series (at the source of the transistors). Reduce thermal resistance to lower the temperature of the transistors: Use heat conduction paste between the transistors and their cooling surfaces. Sooner or later (more sooner :) ) the coil will be the hottest part of the circuit. So, for higher powers I would recommend to go for a completely different design using a full bridge driver based on a IRS2543 or similar.
aclark17 7 years ago
I think its power supply related. I use IRFP250n MOSFETs and used the same schematic you did but I power it with a Variac running through a full bridge rectifier to get the DC power I need and I have zero issues with heat, the only problem I have is the flyback arcing to itself and the voltage getting so high it arcs through wire jackets lol
rah187 8 years ago
This circuit actually worked well for me the first time around when I placed the components on a breadboard, then it stopped working. I thought my connectins were sloppy so I etched a board and it still didn't work. It is quite possible I blew the MOSFETS. However, this circuit was great while it was working.
By the way: great 'Ible!
Alex1M6 12 years ago
theVader75 12 years ago
Alex1M6 12 years ago
cccp3 8 years ago
FriXs 9 years ago
theVader75 12 years ago
GioC1 9 years ago
i'm planing to use power supply from my old xbox(360) to power my ZVS, that i haven't finished yet, but
will this be the proper power supply for it or not?
GyurikaK 8 years ago
RedstoneM 8 years ago
Can I use a 1N4007 for that or do I need a UF4007?
RedstoneM 8 years ago
BA159-E3/73 works as a fast diode, 500ns recovery time. Makes nice induction heater (needs some work for a smelter)