555/MOSFET Flyback Driver

Here is the simple and familiar flyback driver that uses a 555 IC to trigger a MOSFET which drives a flyback transformer. The board in the video is using an IRF730 MOSFET, but I plan to replace it with an IRF540 soon.

Category:

Science & Technology

Tags:

• Flyback
• High
• Voltage
• 555
• MOSFET

[derekaggs11]

I would drive it higher, but this particular circuit was intended for low-power operation and does not use a 7812 regulator for the 555.

[derekaggs11]

I have the frequency set a bit high here; if I tune it down to 17 kHz or so, the arc starts at 1.2 cm at this input voltage.

[CoolDudeClem]

Pretty neat looking, I experiment with this myself, the IRFP260 mosfet gives me good results, but I never have the 555 powered by the same supply as the mosfet, or have the mosfet on the same board as the 555 just in case any kickback from the primary arcs from the mosfet area into the 555 area.

[gabdrum23]

Hi, is very nice!, It's possible to have a schematic and/or a mosfet Part Number?

I wait your news

Thanks

[abzosairis]

im not convinced, i wanna see the schematic diagram... besides this is still a video many things could be done.

[GrandpaTD]

Can you replace the MOSFET with an IGBT?

[zker666]

Wow, thats a high frequency arc! At what frequency are you driving this particular flyback at?

[lilletizz]

Whoa, nice!

You got a email or instant message?

PM me!

[darkthero]

yep! i made this recently for my senior boards i can send you my schematic, if you like :D

[lilletizz]

@darkthero

Is it that easy? :D