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.
