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Planar Transformer Process Solution
Advantages of planar transformers
High
High efficiency
Low leakage sensation
Good heat conduction
Low EMI radiation
The plate conductors of a planar transformer are actually some planar conductors, resulting in a high current density
Efficiency can reach 98%~99%
Approximately 0.2% of the primary inductance
Short hot channel distance and low temperature rise
Good magnetic core shielding can reduce radiation to a very low level
The use of small magnetic cores can correspondingly reduce the volume
Small size
Good parameter repeatability
Wide operating frequency range
Wide working temperature range
Good insulation
Because the winding structure is fixed and easy to pre process, the parameters are stable
The frequency can range from 50kHz to 2MHz
Working temperature is -40 ℃ to 130 ℃
A planar transformer is composed of conductive circuits and insulation sheets
Process characteristics of planar transformers
Thick copper
from 2-6oz
Linewidth (coil) consistency
Uniformity of thickness
Media thickness uniformity
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