What is the difference between a rectifier transformer and a pulse transformer?

There are some differences between rectifier transformers and pulse transformers in terms of scope of use and structure. The transformer used for the power supply of the rectifier device is called a rectifier transformer. The special transformer used to transmit pulses is called a pulse transformer.

What are the differences between a rectifier transformer and a pulse transformer?

One, the difference in usage.

1. The rectifier transformer is mainly used for low voltage, high current; high voltage, low current; short-term overload is allowed, and some rectifier devices with low DC ripple smoothness.

2. Pulse transformers are mainly used in radio communications, electronic equipment, switching power supplies, thyristor trigger pulse circuits, etc.

2, the difference in the use of materials

1. The eddy current of the rectifier transformer has little effect, and the iron core is made of general magnetic material silicon steel sheets stacked. The capacity is large.

2. In order to ensure the quality of the output pulse and reduce the influence of the eddy current caused by the high rate of change of the magnetic induction, the pulse transformer uses a high-conductance transformer in addition to reducing the size of the iron core and reducing the number of winding turns. Magnetic materials such as permalloy or manganese-zinc ferrite cores. The higher the magnetic permeability, the fewer winding turns.

3, the difference of the primary and secondary winding structure

1. The primary and secondary windings of rectifier transformers with low power generally use a single winding. For high-power primary windings, most of them have 3 windings, while the secondary windings have single windings and 3 windings. There are many ways to connect the primary and secondary windings. The primary and secondary windings There are taps for adjusting the output voltage.

2. The power of the pulse transformer is small, and the primary winding is mostly 1; the secondary winding is 2 or more (which can output various voltages). The pulse transformer with wide pulse output has a demagnetization coil. In addition, in order to reduce leakage inductance, the initial , the secondary winding is divided into multiple units and placed alternately.

4, the difference in shape and scale

1. The rectifier transformer is relatively large because of its large capacity, scale and volume.

2. The capacity of the pulse transformer, high magnetic materials, and fewer coil turns, so it is a delicate road.