- Error Loading Operating System Problem SolvedPosted 236 days ago
- How I clean/restore Audio FadersPosted 249 days ago
- Trick For Testing SMD ComponentsPosted 305 days ago
- Another Zener Diode Tester Was BuiltPosted 468 days ago
- Zener Diode TesterPosted 558 days ago
- Repaired An Electronic Welding Inverter. Model: Selco Genesis 140Posted 562 days ago
- Building Your Own RF Field Strength MeterPosted 569 days ago
- Repairing LED FloodLightPosted 579 days ago
- Zener Diode TesterPosted 710 days ago
If you repair SMPS and wish to test it, make sure the load that you are using is big eough for the SMPS. A small load would not turn “On” the SMPS in fact it would cause the SMPS to shut down or even run at a lower voltage (instead of producing 12 volt, the SMPS now only output 7 to 9 volts). If you don’t get the right amount of load to test the SMPS, you might have thought that the SMPS have problem again.
What kind of load do i need to use? Well it depends on what type of SMPS you are repairing. If you are fixing the computer power supply i suggest that you use a motherboard with at least on or two hard disk. You can buy those used motherboards and hard disk from any computer shops. Some power supply only requires a lamp (light bulb) or resistor to work but i do came across some that only will power up with the original load. Hope after reading this post you will make your own decision on what type of loads that you need to use on the Switch Mode Power Supplies.