Pcb Layout With Part Positions (R Room Inverter, Lc4) - Samsung RF32FM SERIES Service Manual

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PCB DIAGRAM

5-3. PCB Layout with part positions (R Room Inverter, LC4)

1. PCB Power Supply: Supplies DC 15V and 5V to the Inverter circuit for the Compressor control.
2. Inverter Control Circuit: Fridge Compressor Control Circuit.
3. COMP Driving / Feedback Circuit
It receives the R COMP(MSV) operating signals from the Main PBA and feeds the inverter errors back to
the Main PBA.
4. BOOTSTRAP Charger: This is an independent power circuit for driving the IMP High-Phase IGBT.
5. Current Pickup Circuit: This picks up the currents taken by the Shunt resistance and performs the PWM
DUTY control.
6. IPM (SLA6805M))
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