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An SMPS Transformer Explained
An SMPS Transformer converts AC mains power to a DC output voltage. This is a regulated voltage instead of an unregulated one. An SMPS transformer can be used to convert voltage levels from one range to another, or it can be used for power dimmer applications. The type of magnetic core used in an SMPS transformer is very important to the transformer's performance, and the choice should be based on the power requirement, frequency, and switching topology.
An SMPS Transformer's primary winding is connected to a high-voltage capacitor. It is then coupled to a power driver, either a high-voltage MOSFET on the internal SMPS or a separate one. The secondary winding is connected across the output diode and converts the voltage and current to the desired values.
SMPS transformers are smaller and lighter than linear transformers. They are also much more energy-efficient, as they have a high-frequency operating range and low operating voltage. In addition, they can achieve high-voltage conversions in boosting and step-down applications. This allows them to be used in multiple applications, from small to large-scale.
An SMPS transformer may be placed at several points in the regulator circuit. It is generally positioned between the output regulation stage and the switching stage, depending on the topology of the power supply. Depending on the power supply topology, the SMPS transformer can be used in a flyback converter or a forward converter.
A switch mode power supply transformer is a transformer that switches power between AC and DC. Its use is wide-ranging, from computer devices to industrial and general commercial power supplies. The SMPS transformer is also known for its high efficiency, small size, and low weight. These factors help it reduce manufacturing costs and space requirements.
SMPS transformers typically contain a primary winding and at least one secondary winding. Some also have auxiliary windings. The primary winding is usually the innermost winding, and is connected directly to the primary side of the SMPS. The primary winding is larger than the secondary windings, and it is easy to identify.
In addition to being smaller and lighter, SMPS devices also use switching regulators to regulate the load current. The switching elements are often designed to have zero resistance when in the 'off' state, reducing their overall loss. However, this does not make an SMPS 100 per cent efficient. Despite the improvements, an SMPS cannot guarantee a 100 per cent efficiency, but it's still a major improvement over a linear regulator.
ER35 EF ER35 High Frequency SMPS Transformer
· input voltage -85V〜265V/AC, 50/60Hz
· Output voltage - 3.3V~36V/DC
· Po- 1000W Max.
· Product features - With high working frequency, high efficiency, small size, light weight and other characteristics
·Standard-UL,VDE, RoHS, 3C, CQC
Power control/ Industrial Equipment/ Household Inverters