The difference between switching power supply and linear power supply application
The power device of the linear power supply works in a linear state, that is to say, the power device is always working as soon as it is used, so it leads to its low working efficiency, generally 50%~60%, and it is large, heavy, and low in efficiency. The calorific value is also large. However, the linear power supply has the advantages that the switching power supply does not have: small ripple, good adjustment rate, and small external interference. Suitable for use with analog circuits, various amplifiers, etc.
The switching power supply is small in size, large in current and high in efficiency, but has large ripple and large interference. With the continuous development of electronic technology, the design of switching power supply is becoming more and more scientific, and the shortcomings of switching power supply will be gradually eliminated, so switching power supply will be the mainstream trend of future applications, gradually replacing linear power supply.
