LISUN
LCR Meter with DC Bias Current Source Series
LS1373 / LS1379
Bench LCR meters with an integrated DC bias source for characterising inductors and capacitors under real operating current.
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Overview
The LS1373/LS1379 series combines an LCR meter with an integrated DC bias current source, allowing inductance measurement under real operating current rather than small-signal conditions alone. This matters for power inductors and transformer components whose inductance changes significantly with DC bias — a small-signal-only LCR reading can be misleading for these parts.
Key Specifications
| Model | Notes |
|---|---|
| LS1373 | Standard DC bias range |
| LS1379 | Extended DC bias range |
Features
- Integrated DC bias current source
- Measures inductance under real operating current, not small-signal only
- Purpose-built for power inductor and transformer QC
Applications
Power inductor characterisation under load current; Transformer inductance verification; Component R&D and QC where DC bias affects inductance