6-2) Pcb Layout With Part Position (Inverter Board) - Samsung RF4287HARS Service Manual

AW3 SM-EN 2011.3.31 2:57 PM 페이지122 in
PCB DIAGRAM

6-2) PCB Layout with part position (Inverter Board)

1. Inrush current protecting area : It prevents an instant inrush of current generated in
condenser when plug in.
2. PCB Power Bus : power bus (Hybrid IC). It supplies DC15V and 5V to MICOM.
3. Current detecting area : It detects the current from the SHUNT resistance and controls
PWM DUTY.
4. COMP operating Signal area : It receives COMP operating signal from Main PCB and
conduct it.
5. BOOTSTRAP live part : Charging circuit that 1GBT of SPM can On/Off securely.
6. IPM : The output circuit for operating COMP of the Refrigerator.
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