For Purchasing Managers, Technical Directors & Operations Leaders who need reliable magnetic components without costly redesigns. Discover how Xinchangda eliminates these pain points → Transformer-efficiency-formula The-term-capacity-on-a-transformer-nameplate-refers-to Load-of-transformer Low-frequency-audio See who trusts our calculations →
“Xinchangda’s precise turns‑ratio calculations saved us $45 k in material costs and cut our time‑to‑market by three weeks.” – James Lee, Procurement Director, MedTech Corp.
“Their OEM service let us launch a custom audio transformer without any engineering overhead.” – Laura Chen, Technical Manager, SoundWave Ltd.
How do I calculate the turns ratio for a custom transformer?
The basic turns‑ratio equation is a = N₁ / N₂, where N₁ is the primary winding turns and N₂ is the secondary. Xinchangda provides a free design calculator that also accounts for core material, frequency, and voltage stress.
Can you produce a prototype within 48 hours?
Yes. Our semi‑automated winding lines and in‑house testing labs enable a 48‑hour prototype turnaround for most standard specifications.
What customization options are available for the turns ratio?
We offer full OEM/ODM services: you can specify exact turn counts, wire gauge, insulation class, and even special winding patterns (e.g., interleaved or bifilar) to meet electromagnetic compatibility (EMC) requirements.
What are the payment terms for first‑time buyers?
We accept T/T 30 % deposit + 70 % before shipment, L/C at sight, or PayPal for samples. All terms are negotiable for long‑term contracts.
Do you ship worldwide and handle customs clearance?
Yes. We ship via DHL, UPS, or sea freight to over 20 countries. Our logistics team prepares all required certificates (CE, FCC, RoHS) to smooth customs clearance.
Ready to Optimize Your Magnetic Designs?
Limited‑time offer: Free engineering sample and 5 % discount on first bulk order (valid until 30 June 2026).
“The turns‑ratio equation guide from Xinchangda cut our design iteration from weeks to days.”
- Michael Tan, Senior Engineer, GreenPower Solutions
“Their fast prototype service let us meet a critical FDA deadline.”
- Sarah Patel, QA Manager, MedEquip Inc.
“Excellent OEM support – we now offer a proprietary transformer line under our own brand.”
- Carlos Ruiz, Product Development Lead, AudioNova
About the Author
Dr. Emily Zhao – Senior Magnetics Engineer with 12 years of experience in transformer design for audio, medical, and renewable‑energy markets. Holds a Ph.D. in Electrical Engineering from Tsinghua University and has authored 35+ IEEE papers on magnetic component optimization. Currently leads the R&D team at Huizhou Xinchangda Electronic.
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