如何计算Transformer
learn.whatIsHeading
Calculates transformer voltage and current relationships for different turns ratios. Essential for voltage conversion and impedance matching.
公式
Turns ratio = secondary turns ÷ primary turns
分步指南
- 1Turns ratio = secondary turns ÷ primary turns
- 2Secondary voltage = primary × turns ratio
- 3Secondary current = primary ÷ turns ratio
- 4Power in ≈ power out (ideal)
- 5Account for losses (92-98% efficiency)
例题解析
输入
Vp=120V, Ns/Np=1/10
结果
Vs=12V
常见错误注意事项
- ✕Not accounting for transformer losses
- ✕Assuming ideal 100% efficiency
常见问题
What's step-up vs. step-down transformer?
Step-up increases voltage, decreases current; step-down does opposite.
Why use transformers?
Voltage conversion, impedance matching, isolation, and distribution efficiency.
准备好计算了吗？尝试免费的 Transformer 计算器
自己尝试一下 →