A three-terminal regulator:

A three-terminal regulator:

Question 1 of 27070XFCRUeNnKCgXMUKme9n4

A three-terminal regulator:

Question 1 of 27070

Q

A three-terminal regulator:

🔍 Key Concepts

• Three-terminal regulator basic function in DC power supplies • Internal building blocks of a typical linear voltage regulator IC (like 78xx series) • Difference between number of terminals (pins) and number of output voltages

💭 Think About

• Ask yourself: Does a three-terminal regulator usually provide multiple output voltages, or a single regulated voltage? • Think about what internal circuitry is needed to compare the output to a reference and adjust it—what kind of blocks would be inside? • Consider which answer is describing what the device does versus what the device is made of.

✅ Before You Answer

• Verify whether a standard three-terminal regulator has one regulated output voltage or several. • Recall that to keep a voltage constant, the circuit needs a reference and a way to compare and correct errors—check which option includes that. • Check if any option is confusing the idea of three terminals with three internal circuits or three voltages.