Pcb Layout With Part Positions (F Room Inverter, Lc3-3A) - Samsung RF32FM SERIES Service Manual

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PCB DIAGRAM

5-2. PCB Layout with part positions (F Room Inverter, LC3-3A)

1. PCB Power Supply: From the SMPS circuit, it supplies 15V and 5V for the Main PBA control and supplies 15V
and 5V to the Inverter circuit for the Compressor control.
2. Inverter Control Circuit: Fridge Compressor Control Circuit.
3. F COMP (ENV2) Driving / Feedback Circuit
It receives the F COMP(ENV2) 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 (FNE41060)
7. Micom (MN103SFC2D)
① ⑦ ② ④
80
③
⑥ ⑤