Profesionální napájecí zdroj AC na DC 12V 10A 120W s transformátorem napětí

This is a really good product, A 12V 10A PSU for this price is really good, and the quality is that which I would expect from more expensive units. Even the plastic cover over the power terminals is not detachable, but hinges up to get access to the terminals, and it runs cold pulling 5 Amperes into 40-Watt RF power amplifier. Observation: There is no sticker, label or other external means of identifying the terminals, but they are written on the PCB, on the inside of the unit. Numbered from left to right they are: 1 - AC Live (mains power in) 2 - AC Neutral (mains power in) 3 - AC ground (Earth) [connected to the metal case] 4 - 12V -ve output terminal 5 - 12V -ve output terminal 6 - 12V +ve output terminal 7 - 12V +ve output terminal The output voltage is variable from 11.2 Volts to 13.2 Volts. I added a 47K resistor to the back of the board (in parallel with R32) in the voltage sense divider, so it now covers 12.5 Volts to 14.5 Volts. I need this to "float charge" a 12 Volt Lead-Acid (VRLA) battery at 13.8 Volts. Note that this modification invalidates the seller's guarantee. WARNING: If you do open the case then be VERY careful, as the internal capacitors can store a charge of up to 380 Volts DC. Do NOT open the cover if you are not experienced with Switch-Mode Power Units. I have added the schematic to this recension. This product is excellent value for money; I am 99% satisfied. I would have given a 100% review if the terminals had been labelled on the outside, or if the unit was provided with a connection instruction. I will most probably buy more of these for other uses, and probably from this (trusted) supplier. Harry L

Vypadá to skvěle, až to připojím, dám vědět