In this paper, a novel soft-switching bridgeless Boost-PFC circuit is proposed, which can eliminate the rectifier bridge in the traditional power factor correction (PFC) circuit, has fewer conduction devices, and introduces a lossless resonant network. Soft switch, and high circuit efficiency, suitable for high power applications. Here we analyze the working principle of the circuit and give the parameter design process. The test results show that the efficiency is higher than the traditional PFC circuit.
Soft-switching bridgeless Boost-PFC circuit
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Encapsulated transformers are low frequency which covered in a thicker coating of insulation than typical. Often the coils are completely encased in epoxy or an epoxy and aggregate mixture. Sometimes they are referred to as [potted" or [cast coil".
The encapsulated design is especially suited for installations in harsh environments where dust, lint, moisture and corrosive contaminants are present. Typical applications include: pulp and paper plants; steel mills; food processing plants; breweries; mines; marine and shipboard installations.
Epoxy resin encapsulated safety isolating transformer PE series
Model: PE4809C-M Power: 0.5VA
This kind of transformer is PCB welding mounting type. The input can be 110V, 220V, 230V, 380V. Output is customized. Both single way and double way are available.
| Type |
Encapsulated Transformer |
| Primary Voltage |
230V |
| Secondary Voltage |
9V |
| Frequency |
50HZ/60HZ |
| Output type |
Single |
| Rated Power |
1.5VA |
| weihgt |
82g |
| Ambient Temperature | Ta70/B |
| Temperature class | Class B(130℃) |
| Coil Structure |
EI |
| Dimension H max | 22.3/24.4mm |
| Dielectric Strength | 230V 4200Vrms |
| Test |
100% |
| OEM & ODM | OEM/ODM |
| Certification |
VDE/CE |
FAQ
1-MOQ?
We will work hard to fit your MOQ .Small purchase quantity is ok.
2-Payment term?
T/T, Western Union, Paypal, Credit Card
3-Delivery port?
Shenzhen, Guangzhou, Zhongshan, Hongkong.
4-Shipping date?
About 7 days when we check the payment.
5-Do you produce the core and bobbin by yourself
Yes.we have 2 head company,1 subsidiary company.one is bobbin factory,one is core factory,last one is transformer factory.
6-Where is your factory?
Shaanxi
Encapsulated Transformer,Step Down Transformer,Pcb Mount Transformer,Low Frequency Transformer
Shaanxi Magason-tech Electronics Co.,Ltd , https://www.magason-tech.com