Analog electronic circuit Technical notes

LCR meter

Understand the working principle of LCR meter by measuring and calculating inductance and capacitance using an oscilloscope.

Vector network analyzer (VNWA3E) DG8SAQ

Explains how to measure S21 and S11 on a vector network analyzer, how to import s1p data,
and how to convert s1p data to impedance, inductance, capacitance, and dB.

Secondary Side Synchronous Rectification

Explains the basic operation of secondary side synchronous rectification,
symptoms when it abnormal operation, and how to solve problems.

Calculate the allowable current of the coil

When a coil is overcurrented, it becomes magnetically saturated and its inductance decreases.
Calculate the allowable current at which the coil's inductance does not decrease.

Transformer coupling frequency characteristics

Analysis of the coupling between the primary and secondary sides of a transformer based on frequency characteristics




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