300W Toroidal Transformer Circular Isolation Coil for Boosting and
Reducing Voltage
1.Product Description
The 300W Toroidal Transformer is an efficient and compact power
conversion device that features a circular iron core design, low
magnetic leakage, low noise, and high efficiency. Its circular
structure optimizes the magnetic circuit distribution. Compared
with traditional EI type transformers, it has a smaller volume,
lighter weight, and lower operating temperature rise, making it
suitable for electromagnetic interference sensitive applications
such as audio equipment, medical instruments, and industrial
control systems. The 300W power output can meet the demands of
medium to high loads and provide stable voltage conversion, making
it an ideal choice for pursuing energy conservation and space
optimization.
Five characteristics of 300W Toroidal Transformer:
1.Efficient and energy-saving
The design of the circular iron core makes the magnetic circuit
shorter, the magnetic resistance lower, the energy loss smaller,
and the efficiency higher than 90%, which is more energy-efficient
than traditional EI transformers.
2.Low electromagnetic interference (EMI)
The closed annular structure effectively reduces magnetic leakage
and electromagnetic radiation, making it suitable for noise
sensitive audio, medical, and precision electronic equipment.
3.Silent operation
The iron core has no air gap, low vibration, and extremely low
working noise (usually<20dB), making it suitable for equipment
that requires a quiet environment.
4.Compact and lightweight
Compared to EI transformers of the same power, it reduces the
volume by 30% to 50%, is lighter in weight, saves installation
space, and is suitable for compact equipment.
5.Excellent heat dissipation performance
Uniform winding distribution and low loss design reduce heat
generation, lower temperature rise, more stable long-term
operation, and longer lifespan.
Applicable scenarios: high-end audio systems, amplifiers, medical
equipment, industrial controls, laboratory instruments, etc.
2.Performance Characteristics
| Feature | Specification | Advantage |
| High Efficiency | >90% efficiency | Lower energy loss, reduced heat generation |
| Low EMI Noise | Minimal electromagnetic interference (EMI) | Ideal for audio, medical, and precision electronics |
| Quiet Operation | Noise level <20dB | Suitable for noise-sensitive applications |
| Compact & Lightweight | 30-50% smaller/lighter than equivalent EI-core transformers | Saves space, easier integration in tight designs |
| Excellent Heat Dissipation | Low temperature rise due to uniform winding and core design | Longer lifespan, stable performance under continuous load |
| Low Magnetic Leakage | Closed-loop core minimizes flux leakage | Prevents interference with nearby components |
| Wide Input Voltage Range | Supports multiple input voltages (e.g., 110V/230V) with custom
options | Flexible for global applications |
| High Reliability | Robust construction with high-quality materials | Durable performance in demanding environments |
3.Company Profile
