The function is to carry out high-frequency switching through controllable switches (MOSFET, etc.). ) and store the input electric energy in the capacitor (inductor). When the switch is turned off, the electric energy is released to provide energy for the load.
DC/DC converters are divided into three categories: boost DC/DC converters, buck DC/DC converters and boost DC/DC converters.
At present, DC-DC converters are widely used in mobile phones, MP3 players, digital cameras, portable media players and other products. It belongs to chopper circuit in circuit type classification.
Extended data:
Product category of power converter
Generally speaking, power converters are classified into 12 types according to the number of users worldwide and the range of countries of use:
1. US-Japan standard
The power converters in the United States and Japan are characterized by vertical distribution of double and triple flat heads, voltage of 100- 120V and frequency of 50/60Hz.
2. EU standards
The power converters in the EU are double round heads, with a voltage of 230V and a frequency of 50Hz.
3. Indian standards
India's power converter is a three-round head with a voltage of 230V and a frequency of 50Hz.
4. Pan-French Standards (Europe)
The power converter in Pan-French area is a three-round head, which is used in most parts of France. The voltage is 230 volts and the frequency is 50 hertz.
5. German Standards (Europe)
Germany's power converter is basically unified with the later European Union standard, in the form of double round heads, with a voltage of 230V and a frequency of 50Hz.
6. British Standards and British Standards
Britain and former British colonies include Hong Kong, Malaysia and Singapore. All power converters comply with colonial standards, which are in the form of three flat heads, with a voltage of 230V and a frequency of 50Hz.
7. Israeli standards
Israel's power converter is mainly used in Israel. It is a flat head with similar slope between live wire and zero wire, and the ground wire is flat head type. Among the electrical parameters, the Israeli standard is the most special, with a voltage of 220V and a frequency of 50Hz.
8. Australian and China standards
Australian and China sockets are of the same type, with three flat heads, voltage of 220V and frequency of 50Hz.
9. Swiss standards
The power converter in Switzerland has three circular holes almost parallel to a straight line, with a voltage of 230V and a frequency of 50Hz.
10. Danish standard
Danish standard power converters are used in Nordic countries. The live wire and the zero wire are round holes, and the ground wire is a square hole. The voltage is 230 volts and the frequency is 50 hertz.
1 1. Italian standard
Italy's power converter is a parallel three-hole type, with a voltage of 230V and a frequency of 50Hz.
12. South African standard
The live wire and neutral wire of the South African power converter are round holes, and the ground wire is square holes, with a voltage of 220V/230V and a frequency of 50Hz.
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