1. Choose a lower current density;
2. Reduce the number of turns, but it will increase the magnetic flux density of the iron core and increase the iron loss. When the copper loss is significantly higher than the iron loss, use it with caution;
3. Change the function of the transformer tester to reduce the AC resistance of the winding. The first method is to reduce the diameter of the copper wire (do not reduce the total cross-sectional area), increase the adjacent surface of the primary (this will increase the primary distributed capacitance), and reduce the primary spacing (this will increase the primary distributed capacitance). Primary distributed capacitance), and relax the coil.
4. Change the operating parameters of the circuit to reduce the AC resistance, such as reducing the switching frequency, but it will increase the magnetic flux density of the iron core.
5. Use wires with lower resistivity.
Reduce iron loss
1. The transformer tester uses core data with better power consumption parameters, such as TDK's PC50 data instead of PC40 data;
2. The transformer tester reduces the magnetic flux density, but it will increase the number of turns of the coil, resulting in an increase in copper loss, so use it with caution;
3. The transformer tester changes the circuit parameters, such as reducing the switching frequency, but increasing the magnetic flux density together, use it with caution, and adjust the number of winding turns if necessary;
4. Reasonable thermal planning, using valley value in core material temperature and loss curve;
Comprehensive method
1. Reasonably allocate the ratio of copper loss and iron loss according to their respective heat dissipation conditions;
2. Reasonably plan the magnetic flux density and operating frequency of the magnetic core to make the magnetic core work in a better FB combination state.
