Hi everyone,
I usually do car audio repairs, so this is the first time I write in the "Power Supply" section.
I am building a regulated and voltage adjustable power supply for car audio use (during meetings).
I had thought of using an sg3525 as a pulse generator and a pair of IR2113S as drivers for some high voltage mosfets (FDH44N50).
I took a look at this pattern.
https://320volt.com/wp-content/uplo...25-smps-ir2110-smps-900w-70v-power-supply.png
I thought of adopting some modifications to obtain an output voltage ranging from 12v to 14.4v.
I would like to use 2 large toroidal CORE recovered from the power supply of a car audio amplifier which had a power of 3000 real watts rms (obviously rewinding the primary and secondary).
Do you have anything to suggest? or maybe something wrong with the drawing?
I am already working on a printed circuit to be made by the JLCPCB site.
I'm not done yet, a lot of things are missing, but here I post a preview.
I usually do car audio repairs, so this is the first time I write in the "Power Supply" section.
I am building a regulated and voltage adjustable power supply for car audio use (during meetings).
I had thought of using an sg3525 as a pulse generator and a pair of IR2113S as drivers for some high voltage mosfets (FDH44N50).
I took a look at this pattern.
https://320volt.com/wp-content/uplo...25-smps-ir2110-smps-900w-70v-power-supply.png
I thought of adopting some modifications to obtain an output voltage ranging from 12v to 14.4v.
I would like to use 2 large toroidal CORE recovered from the power supply of a car audio amplifier which had a power of 3000 real watts rms (obviously rewinding the primary and secondary).
Do you have anything to suggest? or maybe something wrong with the drawing?
I am already working on a printed circuit to be made by the JLCPCB site.
I'm not done yet, a lot of things are missing, but here I post a preview.
Attachments
If this circuit is to be an offline supply, proper isolation in the power transformer is required for safety. It may not be e impossible but much more difficult to apply proper isolation and maintain good magnetic coupling of primary to secondary on a toroid of that size and type. Typically a E core or similar variant like ETD or PQ with a bobbin is more suitable. Be sure to use the proper isolation tape (high temp, flameproof, puncture proof) and a winding method to reduce leakage. Also be sure to leave proper space margins on PCB. An output inductor in the secondary circuit might be in order. Getting that much current from the secondary can be tricky. There are a few different variations, some may require current mode control.
Live mains is nothing to screw around with, use an isolation transformer when building and testing, and please be safe.🙂.
Always good to review mains safety rules before proceeding. 😎
Live mains is nothing to screw around with, use an isolation transformer when building and testing, and please be safe.🙂.
Always good to review mains safety rules before proceeding. 😎
