What is a DC power supply and what is its use
In daily life, people are always exposed to familiar things, but we forget to learn some knowledge that may be obscure but closely related to our lives. Today, the editor will introduce a type of DC power supply. What is DC power supply? It can output at thousands or even tens of thousands of volts of DC voltage through AC mains and three-phase power input. Yes, it is DC power supply.
A DC power supply has two electrodes, positive and negative. The positive electrode has a high potential and the negative electrode has a low potential. When the two electrodes are connected to the circuit, a constant potential difference can be maintained between the two ends of the circuit, thereby forming a current from the positive electrode to the negative electrode in the external circuit. DC power supply is an energy conversion device that converts other forms of energy into electrical energy to supply circuits, in order to maintain a stable flow of current.
Relying solely on the difference in water level cannot maintain a stable water flow, but by continuously pumping water from low to high, a certain water level difference can be maintained to form a stable water flow. Similarly, relying solely on the electrostatic field generated by charges cannot maintain a constant current. With the help of a DC power supply, non electrostatic forces (referred to as "non electrostatic forces") can be used to cause positive charges to return from the lower potential negative electrode to the higher potential positive electrode through the power supply, in order to maintain the potential difference between the two electrodes and form a constant current.
