Permalloy Audio Isolation Transformer with PCBA Circuit Board 10K:10K
1.Product Description
The 10K:10K Permalloy Audio Isolation Transformer is a sophisticated component designed for audio applications. With an impedance ratio of 10K:10K, it excels in matching the impedance between different audio devices, ensuring efficient power transfer and minimal signal reflections. Its core is crafted from permalloy, a nickel - iron alloy renowned for its high magnetic permeability. This unique material enables the transformer to achieve excellent magnetic coupling, resulting in low signal loss and high - fidelity audio transmission.
This transformer plays a crucial role in electrical isolation. By separating the input and output audio circuits, it effectively blocks electrical interference such as ground loops, which are common sources of hum and noise in audio systems. This is particularly beneficial in professional audio setups like recording studios, where maintaining a clean and noise - free audio signal is of utmost importance.
Moreover, it can perform balanced and unbalanced conversion. In audio systems, different devices may use either balanced or unbalanced audio signals. The 10K:10K Permalloy Audio Isolation Transformer can seamlessly convert between these two signal types, enhancing the compatibility and flexibility of audio equipment interconnections.
Typically, its frequency response spans from 20Hz to 20kHz, covering the entire audible frequency range. This wide frequency response allows it to accurately reproduce all audio frequencies, whether it's the deep bass notes or the high - pitched trebles, guaranteeing an immersive and true - to - source audio experience. It is also often equipped with features like shielding to further resist external electromagnetic interference, and can be integrated with PCBA circuit boards for more convenient installation and optimized performance in various audio - related projects.
| NO | TEST ITEM | TEST TERMINAL | LIMIT | TEST CONDITION | TEST INSTRUMENT |
| 1 | INDUCTANCE | 1-3 | 100 H MIN | 100HZ 03V PARALLEL | CD1063 |
| 4-6 | 6.0H MIN | 100HZ 0.3V PARALLEL | CD1063 |
| 2 | DCR | 4-6 | 558 OHM+15% | 25C | CD1063 |
| 3 | IMPEDANCE | 1-3 | 40 OHM土15% | 25C | CD1063 |
| 4 | TURN RATION | 1-3,4-6 | 600 OHM | 1-2,1KHZ,10K,OHM LOAD | CD1063 |
| 5 | PRI-SEC | 1-3,4-6 | 4:1+ 2% | 10KHZ 1V | CH3250 |
2.Structure
10K: 10K Pomo alloy audio isolation transformer, paired with PCBA circuit board, plays an important role in audio systems. Its functional components cover multiple aspects, including:
1. Core functions of transformer:
--Electrical isolation: By utilizing the principle of electromagnetic induction and the characteristic of no direct electrical connection between the primary and secondary windings, interference paths such as ground loops are cut off. In complex audio device connections, it is possible to avoid AC sound and noise caused by differences in grounding potentials of different devices, ensuring the purity of audio signals.
--Impedance matching: With a specific impedance ratio of 10K: 10K, optimize the transmission of audio signals between different devices. It can adapt the output impedance of the source device to the input impedance of the load device, prevent signal reflection, improve power transmission efficiency, and ensure sound quality.
--Signal transmission and conversion: Using high permeability Permalloy magnetic cores to achieve efficient and low loss transmission of audio signals. It can perform voltage transformation on signals according to circuit requirements, faithfully restore the waveform and frequency components of audio signals, and is suitable for various audio signal transmission scenarios.
2. Auxiliary functions of PCBA circuit board:
--Integration and installation convenience: Integrating transformers with other electronic components on the PCBA circuit board greatly simplifies the assembly process of the overall audio system. Reduced wiring complexity, lowered the risk of interference caused by improper wiring, and improved system stability and reliability.
--Signal processing enhancement: The PCBA circuit board may have integrated components such as filtering circuits. By using filtering circuits, audio signals can be further purified, high-frequency noise and other stray interference can be removed, and working in conjunction with transformers, the purity and sound quality of output audio signals can be improved.
--Function expansion: The PCBA circuit board provides space for the expansion of transformer functions. For example, protective circuits can be added to promptly cut off the circuit and protect transformers and other audio equipment when abnormal situations such as overvoltage and overcurrent occur in the system; It can also integrate signal amplification circuits to appropriately amplify audio signals when necessary, meeting the signal strength requirements of different audio devices.
3.Comprehensive functions:
--Common mode noise suppression: Transformers and PCBA circuit boards work together to effectively suppress common mode noise. The induced electromotive force generated by common mode noise in the primary and secondary windings cancels each other out, reducing its impact on the audio signal and improving the signal-to-noise ratio and anti-interference ability of the audio system.
Balance/Unbalance Conversion: In audio systems, different devices have different signal types. This combination can easily achieve the conversion between balanced and unbalanced signals, enhance the compatibility between audio devices, and adapt to various audio device connection needs.
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