1

00:00:01,233 --> 00:00:08,166

Hello everyone, in this lesson we will learn the common "power supply" in the circuit

2

00:00:08,400 --> 00:00:14,400

Power delivery is one of the most fundamental properties of a circuit

3

00:00:16,933 --> 00:00:20,200

The power supply is the source of energy for the circuit

4

00:00:20,933 --> 00:00:26,399

A circuit will not work without power, just like a car without gasoline

5

00:00:30,133 --> 00:00:34,200

In life, power supply can be seen everywhere

6

00:00:34,900 --> 00:00:40,600

For example, 220V household electricity, or our usual dry batteries,

7

00:00:40,800 --> 00:00:43,966

its positive pole is also a power supply

8

00:00:44,533 --> 00:00:49,766

In a PC, a power supply is generally used for power supply

9

00:00:50,566 --> 00:00:53,733

The power supply voltage is also varied

10

00:00:54,133 --> 00:01:00,133

Common power supplies in circuits are 3V, 5V 1.5V, etc.

11

00:01:00,666 --> 00:01:08,366

In general, the voltage of the power supply is constant, it will not be pulled up or pulled down

12

00:01:08,900 --> 00:01:15,900

If the voltage of a power supply is pulled up or down, it means that the power supply is damaged.