Hello guys,
please let me thinking... Can I connect almost pure resistive load directly at the transformer secondary coil? I mean to take part of the energy away to supply some heating element in order to save on the rectifier because the SMPS is used to supply electronics and heating element, so part of the energy is changed to the heat indeed and it is not neccesary to feed the load from perfectly stabilized voltage output.
I have tested this on one LLC resonant power supply kit I have. The issue is that about 3W taken away from the transformer output caused about 30W increase of primary input power.
Kit: http://www.onsemi.com/pub/Collateral/febfan7688sjxa_cp14u306.pdf
Load was connected between red/blue and green point. What is wrong? Please give me a kick, I am ready to study anything but now I do not want what is wrong.
please let me thinking... Can I connect almost pure resistive load directly at the transformer secondary coil? I mean to take part of the energy away to supply some heating element in order to save on the rectifier because the SMPS is used to supply electronics and heating element, so part of the energy is changed to the heat indeed and it is not neccesary to feed the load from perfectly stabilized voltage output.
I have tested this on one LLC resonant power supply kit I have. The issue is that about 3W taken away from the transformer output caused about 30W increase of primary input power.
Kit: http://www.onsemi.com/pub/Collateral/febfan7688sjxa_cp14u306.pdf
Load was connected between red/blue and green point. What is wrong? Please give me a kick, I am ready to study anything but now I do not want what is wrong.
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