Input 110V 220V 230V Output 12V 24V 55V 1000VA Audio Toroidal
Transformer
1.Product Description
Audio Toroidal Transformer is a large type of electronic
transformer and has been widely used in home appliances and other
electronic equipment with high technical requirements. Its main use
is as a power transformer and an isolation transformer. Toroidal
transformers have a complete series abroad and are widely used in
computers, medical equipment, telecommunications, instruments and
lighting. China's toroidal transformers have grown from nothing in
the past ten years, and have formed a considerable scale of
production so far. In addition to meeting China's domestic demand,
they are also exported in large quantities. China is mainly used in
audio equipment and automatic control equipment for home
appliances, as well as quartz lamp lighting and so on.
2.Classification:
1. Standard power transformer products:
The capacity of the series is 8~1500VA, with a small voltage
regulation rate, and the temperature rise at full load is only
40°C, allowing short-term overload operation, which is suitable for
applications with high requirements. The primary and secondary
windings are insulated with B-grade (130°C) polyester film, and at
least three layers of insulating tape are required to withstand the
withstand voltage test of AC 4000V for 1min.
2. Economical power transformer products
The capacity of the series is 50～1500VA. On the basis of ensuring
the performance, we strive to reduce the cost. It is suitable for
continuous operation without overloading. The operating temperature
rise is 60℃, and the insulation material grade is A (105℃). When
the output is full, the output The voltage error is less than 3%.
3. Isolation transformer products
Series capacity 50 ~ 1000VA, can be divided into two series for
industrial and medical equipment. The isolation transformer focuses
on its insulation performance. The primary and secondary are
wrapped with at least 4 layers of B-class insulation polyester
film, and the breakdown voltage is greater than 4000V. All primary
leads must be double-insulated wires. The maximum temperature rise
of the transformer is lower than 45℃.
4. Medical isolation transformers
In addition to meeting the above requirements, the isolation
transformer for medical use should also meet the UL544 standard,
that is, the primary and secondary windings should have thermal
protection, and the distance between the winding and the ground
copper shield should be greater than 13mm.
3.Application:
1. Audio equipment
Among the toroidal transformer products of this factory, there are
first and foremost products that are well-known in audio equipment.
Such as high-performance products that can be used as power
transformers in Class 3 high-power hi-fi amplifiers and power
transformers for medium and small power audio equipment.
High-quality toroidal transformers can be used for power ranges
from 6VA to 1000VA.
2. Electrical control
Such as for current and voltage transformers. High precision, high
stability transformer made by toroidal transformer process. New
high-performance magnetic materials such as permalloy soft magnetic
materials, amorphous materials or nanocrystalline alloys can be
used as magnetic cores, with precise intelligent instruments and
special testing methods. It can ensure accurate transformer
parameters and completely consistent performance.
3. Medical equipment
Toroidal transformers specially designed and manufactured for
medical equipment. In addition to high efficiency, high reliability
and high safety requirements. It also specially strengthens the
electrical strength and improves the anti-humid heat performance. A
thermal fuse is also required to be added inside the transformer to
ensure reliability.
4. Application in other fields
Toroidal transformers can also be used in power inverters of
various sizes, such as solar and wind power generation systems.
This high-efficiency toroidal transformer with a low-loss iron core
can greatly improve the overall efficiency of the inverter power
supply.
4.Advantages of Audio Toroidal Transformer:
1. High electrical efficiency
The core has no air gap, the stacking coefficient can be as high as
95% or more, the magnetic permeability of the core can be 1.5~1.8T
(the laminated core can only be 1.2~1.4T), the electrical
efficiency is as high as 95% or more, and the no-load current is
only the laminated type. 10% of;
2. Small size and light weight
The weight of the toroidal transformer can be reduced by half
compared to the laminated transformer. As long as the
cross-sectional area of the iron core is kept equal, the toroidal
transformer can easily change the ratio of the length, width and
height of the iron core, and can be designed to meet the required
external dimensions;
3. Less magnetic interference
The core of the toroidal transformer has no air gap, and the
windings are evenly wound on the toroidal core. This structure
leads to low magnetic flux leakage and low electromagnetic
radiation. It can be used in high-sensitivity electronic equipment
without additional shielding, such as applications in low Level
amplifiers and medical equipment;
4. Less vibration and noise
The iron core has no air gap, which can reduce the iron core.
SHAPE PARAMETERS:
| Full Loading Powe | Product volume | Mounting plate | Hole distance | Pore size | Weight |
| 20W(MAX) | 70*25*35mm | 70*70mm | 60*60mm | 5*8mm | 0.53Kg |
| 40W(MAX) | 90*41*45mm | 90*90mm | 80*80mm | 5*8mm | 1.0Kg |
| 50W(MAX) | 95*41*45mm | 90*90mm | 80*80mm | 5*8mm | 1.1Kg |
| 70W(MAX) | 100*40*45mm | 90*90mm | 80*80mm | 5*8mm | 1.3Kg |
| 90W(MAX) | 103*40*43mm | 100*100mm | 90*90mm | 5*8mm | 1.47Kg |
| 120W(MAX) | 100*41*45mm | 90*90mm | 80*80mm | 5*8mm | 1.50Kg |
| 150W(MAX) | 98*38*51mm | 90*90mm | 80*80mm | 5*8mm | 2.05Kg |
| 200W(MAX) | 110*45*53mm | 100*100mm | 90*90mm | 5*8mm | 2.23Kg |
| 240W(MAX) | 113*47*54mm | 120*120mm | 110*110mm | 5*8mm | 2.5Kg |
| 300W(MAX) | 122*45*56mm | 120*120mm | 110*110mm | 5*8mm | 2.9Kg |
| 400W(MAX) | 134*46*66mm | 120*120mm | 110*110mm | 5*8mm | 4.1Kg |
| 500W(MAX) | 133*51*63mm | 140*140mm | 130*130mm | 5*8mm | 4.6Kg |
| 1000W(MAX) | 165*52*79mm | 160*160mm | 150*150mm | 5*8mm | 8.2Kg |
| 1200W(MAX) | 180*54*78mm | 180*180mm | 170*170mm | 5*8mm | 10.6Kg |
| 1500W(MAX) | 192*57*80mm | 180*180mm | 170*170mm | 5*8mm | 11.5Kg |
