Shenzhen Zhixiangyuan Electronics Co., Ltd.
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Customized 300W pure copper wire toroidal transformer low frequency transformer for audio amplifiers
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. Toroidal transformers can be used for power ranges from 6VA to 1000VA.
2.Product Advantages
The core of the toroidal transformer is made of high-quality cold-rolled silicon steel sheets (generally below 0.35mm in thickness), which are seamlessly rolled, which makes its core performance better than the traditional laminated core. The coil of the toroidal transformer is evenly wound on the iron core, and the direction of the magnetic field lines generated by the coil almost completely coincides with the magnetic circuit of the iron core. Compared with the laminated type, the excitation energy and core loss will be reduced by 25%, which brings the following series of the advantages:
1) The iron core with high electrical efficiency 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 can be as high as 95% or more, no-load .The current is only 10% of the laminated type.
2) Small size and light weight :Toroidal transformers can reduce the weight by half compared to laminated transformers. As long as the cross-sectional area of the core is kept equal, the toroidal transformer can easily change the ratio of the length, width and height of the core, and can be designed to meet the requirements.
3) Less vibration and noise, the iron core has no air gap, which can reduce the iron loss.
3.Shape parameters
| Full Loading Power | 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 | 0.53Kg |
| 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) | 180*54*78mm | 180*180mm | 170*170mm | 5*8mm | 11.5Kg |
4. Electrical Characteristics
| Full Loading Power | Input Voltage | Frequency | No Load Voltage | Full Loading Current | No Load Iron Loss | Hi-Pot Test | Insulation Resistance |
| 20W(MAX) | AC220V±10% | 50Hz/60Hz | AC12.0V±2% | 1.66A(MAX) | ＜0.9W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 40W(MAX) | AC220V±10% | 50Hz/60Hz | AC12.5V±2% | 3.3A(MAX) | ＜2.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 50W(MAX) | AC230V±10% | 50Hz/60Hz | AC5-0-5V±2% | 5.0A(MAX) | ＜2.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 70W(MAX) | AC230V±10% | 50Hz/60Hz | AC14.5V±2% | 5.0A(MAX) | ＜3.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 90W(MAX) | AC220V±10% | 50Hz/60Hz | AC28+9+16V±2% | 2.1+1.7+1A(MAX) | ＜3.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 120W(MAX) | AC220V±10% | 50Hz/60Hz | AC0-20-80-100V+1V±2% | 6A(MAX) | ＜3.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 150W(MAX) | AC220V±10% | 50Hz/60Hz | AC22V±2% | 6.8A(MAX) | ＜3.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 200W(MAX) | AC220V±10% | 50Hz/60Hz | AC12V*2±2% | 8.4A(MAX) | ＜4.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 240W(MAX) | AC220V±10% | 50Hz/60Hz | AC24±2% | 10A(MAX) | ＜4.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 300W(MAX) | AC220V±10% | 50Hz/60Hz | AC24.5±2% | 12.5A(MAX) | ＜5.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 400W(MAX) | AC220V±10% | 50Hz/60Hz | AC70.5±2% | 5.7A(MAX) | ＜6.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 500W(MAX) | AC220V±10% | 50Hz/60Hz | AC36±2% | 13.9A(MAX) | ＜4.5W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 1000W(MAX) | AC240V±10% | 50Hz/60Hz | AC36.5±2% | 27.5A(MAX) | ＜10W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 1200W(MAX) | AC220V±10% | 50Hz/60Hz | AC45+36V±2% | 13.3+16.6A(MAX) | ＜12W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 1500W(MAX) | AC415V±10% | 50Hz/60Hz | AC48V±2% | 31.2A(MAX) | ＜20W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
FAQ
1. Who are we?
We are based in Guangdong, China, start from 2011,sell to North America(40.00%),Southeast Asia(30.00%),South America(10.00%),
Western Europe(10.00%),Mid East(10.00%). There are total about 51-100 people in our office.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us?
Toroidal Transformers, Audio Transformers, High/Low Frequency Transformers, Power Inductors, Wireless Charging Coils.
4. Why should you buy from us not from other suppliers?
TEAM:Independent engineer team ,to check drawings, provide quotation, write machining process,guide production.
OEM:Advanced production technology,accept oem customization.
DELIVERY: Independent PMC department to make production plan and manage delivery.