IRF 740 Drive circuit for Boost Converter - Electronic Circuits Projects Diagrams Free

bdvs · 4th April 2007, 07:52 PM

I am planning to build a boost converter using IRF 740, i want to drive the mosfet using a 555 timer, I am looking for a drive circuit using 555 timer, can any help me regarding this. thankyou

Brevor · 5th April 2007, 12:48 AM

I have driven IRF 530 directly from a 555 operating at 12 volts with no problems.
I also had a 1k pullup from the gate to 12 volts to insure full turn on. Regular 555's worked better than the CMOS versions.

Sceadwian · 5th April 2007, 12:54 AM

You should try google, there are hundreds of 555 schematics out there, and you should be able to find find at least two or three for a simple boost converter, also search the forums there was a circuit posted within the last week that does exactly what you're trying to.

Hero999 · 11th April 2007, 09:52 PM

Why are you using a 555 timer for as boost converter?

There are far more efficient ways of doing it.

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4th April 2007, 07:52 PM	(permalink)
bdvs	IRF 740 Drive circuit for Boost Converter I am planning to build a boost converter using IRF 740, i want to drive the mosfet using a 555 timer, I am looking for a drive circuit using 555 timer, can any help me regarding this. thankyou

5th April 2007, 12:48 AM	(permalink)
Brevor	I have driven IRF 530 directly from a 555 operating at 12 volts with no problems. I also had a 1k pullup from the gate to 12 volts to insure full turn on. Regular 555's worked better than the CMOS versions.

5th April 2007, 12:54 AM	(permalink)
Sceadwian	You should try google, there are hundreds of 555 schematics out there, and you should be able to find find at least two or three for a simple boost converter, also search the forums there was a circuit posted within the last week that does exactly what you're trying to. __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."

11th April 2007, 09:52 PM	(permalink)
Hero999	Why are you using a 555 timer for as boost converter? There are far more efficient ways of doing it. __________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez