Which is better for coils in high-frequency transformers: flat copper tape or litz wire?
For comparison, please refer to the following table:
Comparison Chart
| Comparison Basis | Flat Copper Tape | Litz Wire | |
| 1 | Application | The current is big | The current is not big |
| 2 | Advantages | Suitable for one or two turns of winding,small leakage inductance, High space utilization and high current resistance | simple production process easy winding operation |
| 3 | Disadvantages | As the frequency of flat copper tape is too high, there will be an obvious skin effect and winding will be very difficult. This type of tape is not suitable for high frequency transformers | If the current is too large, too many strands litz wires are needed, and the cost is more expensive than flat copper tape Easy overloads at high currents |
In conclusion,use the Litz wire or flat copper tape based on the magnetic core size and the current.
