Basic step up dc-dc converter

Posted by Ilias-Man On Friday, February 24, 2012 29 comments

This is a basic circuit of a step up DC-DC converter which the output voltage is more than the input, the circuit could be used to power a 9v or more devices from a 6v or even a 1.5v battery, charge batteries (3-12v) with 1.5v solar cell...
The circuit uses an oscillator using Schmitt trigger, all types of oscillators works, one transistor (Ex: BD139 or similar), resistors, coil (many different types of coils work even a small DC motor works! or you can wind 60 turn on ferrite)

R1 and C1 determine the oscillation frequency, different types of coils perform differently at  frequencies changes.
I used 5v input and toroid ferrite, the output exceed 60v (no load). The output voltage will drop as the load go higher.

Other types of oscillators can be used:

Other one to use see here: Simple rectangular oscillator

7812 or 7805 regulators can be used to stabilize the output voltage. (remember not to exceed the maximum input voltage)



wantoro said...

L1 = uh ?

doc-out-of-the-box said...

can I ask a question?
I need a 12v DC to 120 V DC transformer, to convert solar power (from batteries)
To power a lathe motor (120vDC). The system is about 1000w
Do you make such a device, or do you know someone who does?
CHIP Moses

malik aayan said...

Awesome ! i really found very informative article here and bookmarked this blog. Thank you.Free Solar Panels

Ben Winkel said...

Isn't the 7414N an IC? With multiple pins! Can you show how you connect them in the circuit?

bala krishnan Irulandi said...

What is the L1 value here in the circuit?

Applied Electronics said...

a very useful circuit

electronic principles

Pradeep Kumar said...

These technical details had been of great help. Thanks for sharing!!Keep updating new posts on your blog!!
Transformer manufacturer in India

Gururaj Kashikar said...

How much current can these circuits deliver?

Unknown said...
This comment has been removed by the author.
Артём Погребной said...

I inserted resistor R=9 Ohm instead of L1 and I got dc-dc converter from 3 V to 1.5 V

Jamz Gichai said...

Can I use a 1.5vdc cell to fully charge a car battery?

Steve Berke said...

I enjoyed reading your article :) PLease continue publishing helpful topics like this. Regards, from Let's get gadgets.

Megan Taylor said...

Great post is this!My First Saving

Thi Eris said...

"Recondition Your Old Batteries back to 100% of their working condition" .
- Car batteries
- Computer and phone batteries
- Rechargeable batteries
- Long life batteries
- Batteries used in alternative energy systems
- Deep cycle marine batteries
- Golf cart batteries
- Forklift batteries
- And many other kinds of common batteries!

Ashley Babs said...

Thanks for posting your valuable thoughts with us & our readers. Please keep continue writing on this blog.
Bulk SMS Provider

Đồ gia dụng said...

Thank you for sharing, we specialize in providing refrigeration and electrical appliances

Sửa điều hòa âm trần

Thay block điều hòa

Bảo dưỡng điều hòa âm trần

Bảo trì điều hòa công nghiệp

Bảo dưỡng điều hòa công nghiệp

Anonymous said...

Good Post, It increases my knowledge. Undertakings are a piece of any designing educational modules. Final year projects for Electronics Engineering help understudies to execute what they realized in their four years designing examinations. They likewise help the workforce to comprehend their understudies' execution. Engineers Garage is also the website which is only for Electronics and Electrical Engineers. Where students can find various Projects ideas and tutorials on Microcontroller, Electric Circuits and more. Very Helpful website for Final year engineering students which has innovative ideas for projects in electronics and communication.

Badhri Media Creations said...

What is the inductance value???

Anonymous said...

Highly efficient most popular bitcoin mining machine available in stock, ready to ship

Antminer S9 For Sale

Thank you

Bambang Prayogi said...

Is mosfet more better as a inductor driver?

Tanvir Ahmed said...

Technology that is needed in all the world and in the future, is the technology. whose more than knowledge about technology. The more progress he can make. And it is necessary to have knowledge of every human technology. Because now everything is through technology. You can find help on for any kind of technology related information. Here are all information about all types of technology and tips.

Click here to know more information Tech Blogs

Amelia said...

Such a nice post, Thanks for sharing Such a valuable features and other relevant information. .. If you have any issues regarding AOL Desktop gold so just follow the link

Download AOL Desktop GoldDownload AOL GoldInstall AOL Desktop GoldInstall AOL GoldDownload AOL Desktop Gold SoftwareAOL Gold Download LinkAOL Desktop Gold DownloadAOL Desktop Gold SoftwareReinstall AOL Desktop GoldDownload AOL Gold SoftwareUpdate AOL GoldInstall AOL Desktop Gold SoftwareInstall AOL Gold SoftwareDownload AOL Desktop Gold AOL Desktop Gold support numberAOL Desktop Gold Technical support AOL Desktop Gold customer support AOL Desktop Gold Login AOL Gold Sign inDownload AOL Desktop Gold for windows 10Latest AOL gold softwareAOL desktop goldFree AOL Gold Desktop 9.7 Download Download AOL Gold 9.7 Desktop AOL Gold AOL Gold Support Number install aol gold desktop on mac os x AOL gold login AOL gold upgradeAOL desktop gold for macAOL desktop gold upgrade

Mahi said...

Thanks For Sharing...
Website Designing Company India
Website Development Company India
Website designing Company Dehradun
website designing company Rishikesh
Website Development Company Rishikesh
Website designing Company Nanital
Website Development Company Nainital
Website Development Company Haridwar
Website Development Company Haldwani
Website designing Company Haldwani

Ayyansdgar Baibhasne said...

Great man! You have really done the hard working on this post...
Lithium Ion Battery Manufacturer

AT%T Customer Care said...

Reset your att email password

reset at&t password | at&t password reset | at&t email password reset | reset at&t email password | forgot at&t email password | recover at&t password | at&t password recovery | forgot my at&t password | reset my at&t email password | at&t mail password reset | forgot at&t password | contact at&t password reset | how to reset at&t password | change password at&t email | recover at&t email password | reset at&t mail password | at&t password reset contact | contact at&t forgot password | at&t password reset contact number | contact at&t for password reset | at&t password reset phone number | att password reset | reset att password | att email password reset | reset att email password | forgot att email password | recover att password | att password recovery

FIVER Environment Group Co.,Ltd said...

Wow...this was really interesting!!!

Greetings! Very helpful advice within this post! It is the little changes which will make the greatest changes. Thanks for sharing!

Customized UV Lamp Ballast

serujiram said...


Alex Marthy said...

Informative article. Thanks for sharing such an valuable article. Also visit my website for AC Repair Services in Noida | Delhi Ncr. AC Repair Services in Noida | Delhi Ncr

Robert Paul said...

Informative article. Thanks for sharing such an valuable article. Also visit my website for Laser Printer Customer Services Number. Laser Printer Customer Services Number

Post a Comment

hostgator coupon