Hello Board,

I am a new student in the world of electronics. I have been tasked with creating my own project to recreate concepts learned in class. I want to use a wave function generator to power a small AC/AC step-up transformer (1KHz?). I figured output current would be an issue if l just used a voltage multiplier. The transformer voltage would then be converted to DC using a full wave bridge rectifier. The result would feed the rails of my solder-less breadboard hence why l need current. The rails finally would have a 555 timer/CD4017B/LEDS driven of it. Where can l find a pcb kit for purchase for the transformer? Everything, Custom or DIY, seem too large for a breadboard. Any help would be appreciated.

 

The standard voltage for powering hobby projects on a solderless breadboard is 5V.
I suggest you get a USB power bank. A small 2000mAh power bank will deliver 5V @ 200mA for 10 hours.

 

The standard voltage for powering hobby projects on a solderless breadboard is 5V.
I suggest you get a USB power bank. A small 2000mAh power bank will deliver 5V @ 200mA for 10 hours.

I need to use a transformer though. I guess there are no miniature versions available.

 

A Tamura 3FS-348 might work. It is intended for AC mains step-down, but you could use it "backwards" as a step-up transformer for lower voltage. It should work reasonably well at 1 kHz and be able to handle enough power for your circuit, as long as your LEDs don't need too much current. It may be physically bigger than you would like, but there just aren't many small transformers around these days. Many years ago you could get transformers intended for use in small transistor audio amplifiers, but they just aren't made anymore as far as I know.

Digi-Key has stock of the Tamura part and the price isn't too horrible. There are other similar types.

datasheet
http://www.tamuracorp.com/clientuploads/pdfs/engineeringdocs/3FS-3XX.pdf

I used to use small transformers may by Sptiznagel, but I don't think you can find any of their products from distributors.

 

A Tamura 3FS-348 might work. It is intended for AC mains step-down, but you could use it "backwards" as a step-up transformer for lower voltage. It should work reasonably well at 1 kHz and be able to handle enough power for your circuit, as long as your LEDs don't need too much current. It may be physically bigger than you would like, but there just aren't many small transformers around these days. Many years ago you could get transformers intended for use in small transistor audio amplifiers, but they just aren't made anymore as far as I know.

Digi-Key has stock of the Tamura part and the price isn't too horrible. There are other similar types.

datasheet
http://www.tamuracorp.com/clientuploads/pdfs/engineeringdocs/3FS-3XX.pdf

I used to use small transformers may by Sptiznagel, but I don't think you can find any of their products from distributors.

Thank you for the help. The professor discouraged DIY breadboard transformers because he wanted a reliability report.