ADF Power supply sources are what?

ADF Power supply sources are what?

• A. Three different power supplies: 26 VDC synchro voltage, 28 VDC, and 115 VAC
• B. A single 12 VDC supply
• C. Two 24 VDC supplies
• D. Four 28 VDC supplies

Answer: (A)

Power for the ADF comes from three distinct sources: a 26 V DC synchro voltage used to drive the synchro-based components and servo/indicator circuitry, a 28 V DC bus for the main avionics power, and 115 V AC to supply devices or internal converters that rely on AC power. This combination—26 V DC synchro, 28 V DC, and 115 VAC—is what the ADF system uses, making it the best representation of its power architecture. The other options don’t match the actual mix of sources the ADF requires.

Power for the ADF comes from three distinct sources: a 26 V DC synchro voltage used to drive the synchro-based components and servo/indicator circuitry, a 28 V DC bus for the main avionics power, and 115 V AC to supply devices or internal converters that rely on AC power. This combination—26 V DC synchro, 28 V DC, and 115 VAC—is what the ADF system uses, making it the best representation of its power architecture. The other options don’t match the actual mix of sources the ADF requires.