 HomeNewsHow to set the parameters of the"current transformer"circuit in the switching power supply?

How to set the parameters of the"current transformer"circuit in the switching power supply?

2022-10-12

Although it is also possible to push the core area product design formula of the conductive Current Transformer similarly to the transformer,since the power of the current transformer is small and has some specific limitations,the design can be simplified as follows.Figure 1 shows the design steps of this demagnetization current transformer:

The first step is to give the waveform of the current transformer sampling circuit in the specific converter:

Step 2:According to the characteristics of the current transformer:

(1):the core of the high permeability material so that the excitation inductance of the secondary side is as large as possible;

(2):For the convenience of processing,it is necessary to minimize the number of turns of the original secondary side,so the number of turns of the primary side can be taken as one.

Step 3:Calculate the number of turns on the secondary side:

Previous: Detailed classification of current transformer principle

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 HomeNewsHow to set the parameters of the"current transformer"circuit in the switching power supply?

Anyang Kayo Amorphous Technology Co.,Ltd.

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