How much do you know about the classification of power supplies?

　　The original definition of power supply is: a device that converts other forms of energy into electrical energy is called a power supply. According to this definition, the common power supplies in daily life are as follows:

　　Wind power : converting wind power into electricity

　　Photovoltaics: Converting solar energy into electricity

　　Batteries: Convert chemical energy into electrical energy

　　Power Converter : A device that can control and convert the form of electrical energy. According to the different conversion types, it can be divided into the following categories:

　　1. Classification according to conversion form: AC-AC, AC-DC, DC-DC, DC-AC

　　2. Classification according to conversion method: linear power supply, switching power supply

　　3. Classification according to the effect of regulation: voltage stabilization, constant current, frequency modulation, phase modulation

　　Here are some common products that are power converters :

　　Power Converter Example - Computer Power Supply

　　Power Converter-Charger

　　Power Converter - Power Module

　　From the above, we can see that what we now call a power supply in our daily life is actually a power converter.

　　2. If the power source is classified according to the number of conversions, it can be divided into primary power source, secondary power source, and chemical power source, as follows:

　　A Primary power source: converts other energy into electrical energy, such as wind power, thermal power, hydroelectric power stations, etc., which is what we usually call municipal electricity or power grid.

　　Primary power source: the power grid from which various power stations provide electricity

　　B Secondary power supply : A device that converts part of the power of the main power supply into another form of power to meet the different requirements of different electrical equipment for different forms of power . Or, in the process of power transmission, it transforms or stabilizes the power between the power supply and the load.

　　AC-AC (Alternating Current-Alternating Current): voltage stabilizer, uninterruptible power supply (UPS), AC power supply, variable frequency power supply.

　　DC-DC (Alternating Current - Direct Current): Rectifier, DC power supply.

　　DC-AC (Direct Current - Alternating Current): Inverter.

　　DC-DC (Direct Current - Direct Current): Direct current power supply.

　　Here are some examples of secondary power supplies:

　　Industrial Power Module Inverter

　　Computer adapter welding machine

　　C Chemical power source: Usually, energy is stored in a certain form, and when used, it is converted into electrical energy to supply the load, such as various batteries. The following are various chemical power sources:

　　Dry Cell

　　lithium battery

　　Laminated battery

　　Button Battery

　　Lead-acid batteries