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Samsung Electronics
12-3
12-2 Outdoor Unit
MAIN-IC-MCU
CONTROLLER
OSCILLATION
CIRCUIT
• BLDC FAN CONTROL
• PFC CONTROL
• COMPRESSOR CONTROL (BLDC)
• LED CONTROL
• EEPROM R/W
• AC FAN CONTROL
• EEV CONTROL
• 4-WAY CONTROL
• LED CONTROL
• INDOOR COMMUNICATION
OUTDOOR TEMPERATURE SENSOR
DISCHARGE TEMPERATURE SENSOR
CONDENSOR TEMPERATURE SENSOR
SMPS
• 4-WAY VALVE
• EEV
FAN
INV-IC-MCU
• BLDC FAN CONTROL SIGNAL
• PFC CONTROL SIGNAL
• COMPRESSOR CONTROL (6P,BLDC)
• LED CONTROL SIGNAL
OSCILLATION
CIRCUIT
PFC CIRCUIT
• AC FAN CONTROL SIGNAL
• EEV CONTROL SIGNAL
• 4-WAY CONTROL SIGNAL
• LED CONTROL SIGNAL
• INDOOR COMMUNICATION SIGNAL
COMPRESSOR
AC INPUT
INDOOR UNIT
• AC ZERO CROSSING SIGNAL
• COMPRESSOR ZERO CROSSING
SIGNAL
• BLDC FAN PULSE SIGNAL
• IPM FAULT SIGNAL
• DC VOLTAGE
• AC CURRENT
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