Audio transformers are designed to serve two basic purposes. First, they are used to transform circuit impedances. Second, because there is no electrical connection between primary and secondary, they provide isolation. Isolation eliminates noise caused by ground loops.
There are a number of parameters to consider when designing or choosing an audio transformer including:
- Maximum signal level
- Frequency response
- Insertion loss
- Shielding requirements
Audio transformers are typically designed using nickel steel core material, but silicon steel is also sometimes used. They may have a Faraday shield around one or more of the windings, or magnetic shielding around the whole part.
CET has a wide selection available, and we can also develop a new transformer to your custom requirements.
Call or complete an RFQ to start the design of your custom transformer.