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Do you know the difference and application scenarios between push-pull switching power supplies and series switching power supplies?

Article Source:Kinri Energy | Author:Kinri Energy | Issuing Time:2024.04.18
In the field of power supply, push-pull switching power supply and series switching power supply are two common types. They have obvious differences in multiple aspects, are you still struggling to choose the right switching power supply? Today, this article will unveil the mystery of push-pull switching power supplies and series switching power supplies! Let's take a look at their differences.



1. Circuit structure

Push-pull switching power supply: It uses two switching tubes to operate through alternating conduction and cutoff. Its structure is relatively complex, requiring more components and refined design to ensure stable operation.

Series switching power supply: With only one switching tube, the structure is relatively simple, and the design and manufacturing difficulty is relatively low.

2. Output current

Push-pull switching power supply: capable of providing a large output current, it can meet the needs of high-power equipment, such as large electrical appliances, industrial machinery, etc.

Series switching power supply: With relatively small output current, it is suitable for some low-power devices.

3. Transformer design

Push pull switching power supply: Transformers typically have more windings and more complex magnetic core structures to adapt to high-power conversion.

Series switching power supply: Transformer design is relatively simple and cost-effective.

4. Efficiency

Generally speaking, push-pull switching power supplies have higher efficiency and can effectively reduce energy loss.

The efficiency of a series switching power supply may be relatively low, but it can also achieve good results under certain specific conditions.

5. Voltage stability

Push pull switching power supply: It performs well in voltage stability and can maintain a stable output voltage within a certain range.

Series switching power supply: Voltage stability may be affected to some extent and needs to be considered during design.

6. Cost

Due to its complex structure and high performance requirements, the cost of push-pull switching power supplies is relatively high.

Series switching power supplies have cost advantages and are suitable for some cost sensitive applications.

7. Application scenarios

Push pull switching power supply: commonly used in situations with high power and performance requirements, such as power equipment, communication systems, etc.

Series switching power supply: more suitable for some ordinary consumer electronics products, small devices, etc.

In summary, there are significant differences in circuit structure, performance, and cost between push-pull switching power supplies and series switching power supplies. When selecting, the appropriate type of switching power supply can be determined based on specific application requirements and conditions.