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A Mini Pulse Flyback Transformer Explained
If you want a transformer that can generate a voltage with an adjustable frequency, you need a flyback transformer. This type of transformer is used in many applications. It is available in a range of power ratings and is suitable for various industries. There are several types of flyback transformers, including no-opto flyback and step-up transformers.
Flyback transformers are compact and have high efficiency. They are suitable for many applications, and are often used in local area networks. For instance, a flyback transformer can be used to power battery units. However, they do not have long-distance transmission capabilities. Typically, they are used at voltages of 2 - 400 Vdc.
The circuit of a flyback transformer consists of the primary winding, the secondary winding, and the rectifying circuit. When the primary coil is energized, the magnetic field creates a ramp current. Once the ramp current reaches a peak value, a large voltage pulse is generated. This pulse is then converted to direct current by a half wave rectifier.
To ensure that the output is potted, a diode is used on the reverse side. This prevents the ramp from flowing in the opposite direction, and also maintains the flow of unidirectional secondary current. The capacitor at the input of the circuit keeps the voltage constant.
A flyback transformer may operate in either the discontinuous or continuous conduction mode. Both modes involve trapezoidal waveforms of the current. Continuous mode is generally utilized in power supply transformers, while discontinuous mode is used in telecommunications and medical equipment.
Flyback transformers are designed with thin copper windings and are properly insulated. Their operating temperature ranges from -40 degrees C to +125 degrees C. The transformer is usually CSA and ETL approved. Several types of flyback transformers have a low leakage rating.
Depending on the type of application, a flyback transformer may have a different number of windings. The windings are copper and mica insulated. Paper insulation is also used in some applications. Generally, the number of turns of the secondary winding is larger than the primary winding.
Many manufacturers offer flyback transformers in a variety of sizes and power ratings. Some are available in surface mount and molded construction. Additionally, a custom manufacturer can design a transformer that meets military requirements or safety standards.
Flyback transformers are designed for use in telecommunications, automotive, and electrical industries. As a result, they are typically low-cost and high-efficiency. Besides being used in these applications, they are often used in additive magnetic circuits and DC-DC controllers. They are UL and ETL listed. In addition, they are made in the USA.
Some models feature a 7000 volt pk at 10ma, a 1 x 1 x 1" potted enclosure, PC board pins, and 20 kHz - 100 kHz frequency. These specialized units have been tested under stringent conditions and live up to their specifications.
These specialized units are manufactured by leading companies, and are designed for use in high-voltage wave tubes, research, and private applications. They are built to last and are well-built.
