In daily life, a lot of people more or less understood some of UV lights on the role of the transformer, the design is to do what provisions have very few people know. Qingda technology to UV lamp design of transformer in the best condition, reasonable structure design from a structural point of view, the following factors should be considered: small magnetic leakage, leakage inductance decrease winding; easy winding lead wire and transformer installation to be convenient, in order to facilitate the production and maintenance.
Generally speaking, the 3 should pay attention to light transformer design aspects of UV, respectively, as described below:
A], temperature, in the design and selection of core material, in addition to care the saturation magnetic flux density, loss and other conventional parameters, but also pay special attention to its temperature characteristics, high frequency switching power supply so as to consider the influence of temperature, material requirements of core power loss frequency should be as small as possible in the industry. With the increase of the working temperature, low saturation magnetic flux density should be as small as possible.
Two], leakage inductance small switching power supply transformer leakage inductance energy storage caused by voltage spikes is one of the causes of damage the power switch, power switch off when the circuit size and configuration, the collector circuit voltage spike off conditions and the leakage inductance of the size and other factors, only the switching power supply transformer, reduce the leakage inductance it is very important.
Three], avoid general frequency switching power transformer transient saturation flux density in the design of B-H curve near the inflection point, and thus in the transient current transformer saturation due to the serious and surge current greatly. It reduces quickly, generally only a few cycle duration. So in the control circuit has a soft start circuit to solve the problem.
In addition, the winding process in the design of switch transformer, winding is also a very important step, the winding wire should be arranged orderly.
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Source: http://www.vipuv.cn