Hi I was planning on checking voltages on primary side of supply that is not currently producing any outputs on secondary side, with exception of 5vsb. I have read that one must keep about 20% load on a SMPS in order for it to function properly. My question is while I will have full load (main board) connected while testing will it be ok to unplug the inverted cables (my system has master/slave config)? I am assuming the main board would represent at least a 20% load. Any questions or comments on this is appreciated - Ted
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I found this YouTube video on how to test a inverter type compressor
It also shows how to make a testing device to test the inverter type compressor
https://www.youtube.com/watch?v=GHMEl6YQV8U -
Hello Community,
I've been looking at the TV160 mainboard tester for LED/LCD screens and wondered if there was a device for providing the required voltage to test a TV mainboard using the TV160 without the SMPS.
Doing so may allow me to work on the main board away for the larger unit with the panel and SMPS
Thanks,
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The charging indicator light on my ASUS X54H laptop is always on even when the charger is disconnected.
Windows also shows ''Plugged in'' when charger is not connected.
This problem started year ago gradually, when unplugging the charger the charging light took several seconds to disappear, then minutes, and now almost always on even when unplugged for an entire day.
Strangely, before sometimes immediately when plugging in the charger the charging light went away, and later came back with it connected.
If I let battery run out and say it has 3% Windows will... -
So my Ampeak 2000 watt power inverter will receive power from a 12 volt source, and also has a display screen that displays how many volts the inverter is currently using...However, the plug outputs are not producing any power outward...The display screen on the inverter also shows how many volts an item that is plugged in is currently using...Which stays at 0 and no items will power on...I opened the inverter casing and discovered there is some charring and burned areas on one end of the circuit board...What I am trying to figure out is if I can purchase/obtain a new board exactly like the board...02-27-2020, 08:37 AM -
Hi friends of electronics
What you see in the video and pictures attached is the circuit for charging the batteries of a DC motor.
The problem is that this circuit cannot charge the batteries (3 1800mAH NiMH batteries) any more. When the circuit was OK, its green LEDs lit up one at a time to show that the batteries have charged more. But now that the circuit is flawed, LEDs light up as you see in the video and at the same time successive beeps are heard.
Please help me fix this circuit.
(the datasheet of the IC: https://pdf.datasheet.live/28...