Hi,

Does it work we apply input of HF transformer signal in the picture? Can you help me about this?

 

Hello,

There is not much to go on.
There are no properties of the HF transformer given.
There is no info on the frequency of the given signal.

Bertus

 

HF transformer frequency is 100kHz, ratio 3:1. Signal is output of buck converter which have 30kHz switching frequency.

 

Hello,

The ratio is likely for the voltage/current and not frequency.
I do not know how selective the HF transformer is for the frequency.
I think there will be hardly any signal left when feeding the transformer 30 KHz.

Bertus

 

What are you aiming to do?

 

I want to learn that Is it necessary apply sinusoidal signal such as figure 1 to input HF transformer?Does HF transformer work pulsating DC such as figure 2.

figure 1

figure 2

 

Transformers do not work on DC, other than a "kick" when the power is applied and then again whne it is removed. You will probably get an output that is a result of the AC superimposed on the DC voltage. This depends on if the RF transformer is tuned to the frequency of the AC part. Try it and see.

 

Transformers do not work on DC, other than a "kick" when the power is applied and then again whne it is removed. You will probably get an output that is a result of the AC superimposed on the DC voltage. This depends on if the RF transformer is tuned to the frequency of the AC part. Try it and see.

Some transformers have a very wide frequency range and while a standard iron 60hZ power transformer will not work there are many kinds that will function very well at 30 KHz or 100KHz. In addition there are audio transformers that handle all sorts of waveforms without distortion, and pulse transformers that will pass a square wave without a lot of problems.
In addition, there is no clue as to what you mean by "will this work", making it a real challenge to answer.