Samsung WF-F125AV - Page 12

13-7
13. CIRCUIT DESCRIPTIONS
13-7. SILVER NANO SYSTEM
 Function
- Applies the electric current to the silver plate during the water supply and uses the silver water to perform the bacteria-
free or sterilization processes.
 Description
- Selects the silver nano feature to operate the system.
- Supplies water to the two silver plates AG_B and AG_A. Then, SINAL_A and SIGNAL_B output a high signal of 5V.
- Both SIGNAL_A and SIGNAL_B repeat this for 15 seconds outputting a high signal of 5V. SIGNAL_A output turns
TR1andTR6ontogenerateapotentialdifferencebetweenthe12Vandthegroundingforcausingthecurrenttoow.
SIGNAL_B output turns TR4 and TR5 on to generate a potential difference between the 12V and the grounding for
causingthecurrenttoow.
- TheowingcurrentistransformedtoavoltagebytheresistanceofR27.
- Then,thevoltageisappliedtoIC1pin2andusedfordetectingandcontrollingtheowingcurrent.