It endeavors to provide the products that you want, offering the best bang for your buck. Apparently, the 12V regulator does not work unless there is sufficient load on the 5V side.

By keeping the original rectifier in the +12V line one ends up with a +13.5V/9A power supply. Power supply & Chargers Updated: September 25, 2019 This is how to modify old Lead-acid battery charger or convert power supply to automatic battery charger form. Hi.

I HAD ACQUIRED an unbranded working PC switched-primary power supply board, measuring 14x10x5cm and weighing 350g. Your help will be much appreciated. A perfect project for the budding experimenter with no spare cash for test equipment. It’s a very inexpensive way to make a pretty good DC bench supply or dedicated 12 volt supply for working on projects or powering devices. It regulates the voltages by rapidly connecting and disconnecting the load circuit (switched-mode power supply). 4.4 out of 5 stars 139. There is still power flowing through the PSU if it plugged in but not switched on OK lets get straight into it remove the computer case and take out the screws (usually 4) at the back of the computer to release the power supply.

With an appropriate load on the 5V side, the 12V side produces just over 12V. With features that are more or less hit or miss for what you need. There are a number of ways to convert a standard computer ATX power supply unit into a usable bench top power supply. I googled but couldn't find anything positive except this post but i have some doubts. The most well known power supplies of a high current low voltage are AT or ATX supplies from computers.

Udo Theinert, DL2YEO shows how in CQ-DL 4/92. With no load on the 5V output, my PC power supply produces less than 11V on the 12V output. You can keep the 20-pin Molex connector attached and connect directly into it or cut it off completely and group together the individual wires keeping the same colours together, reds to reds, blacks to blacks etc. Depending on the PC … With these costing you only $25 and having short circuit protection, thermal protection, Overload protection and varied output voltages of 3v, 5v and 12v but we will me modifying it to give out 1.5v to 24v. Skip to main ... Radio, Computer Project. Prices Today for a lab power supply well exceed $180. A computer power supply converts the AC power from the wall outlet into smaller DC voltages that power the various components of the computer. A computer power supply converts the AC power from the wall outlet into smaller DC voltages that power the various components of the computer. Convert an ATX Power Supply Into a Regular DC Power Supply! A power supply unit (or PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer. But it turns out a obsolete computer power supply is perfect for the job instead. 00. Reference : Converting an ATX Power Supply Into a DC Bench Supply This article is the first in the “Projects” category. : A DC power supply can be hard to find and expensive. I have Dell d220p-01 power supply with 220w and 12v 18a output which i wanted to convert for Dell laptop with requirement 240w 19.5v power. I used some 22awg solid phone wire to make the connections and once completed, I used a regular computer power cable to power … A 12V 20A switch-mode supply suitable for powering a 100W HF transceiver can be obtained by modifying a four-voltage PC computer supply; these are available cheaply in the surplus trade.

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