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Very high frequency (VHF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) from 30 to 300 megahertz (MHz), with corresponding wavelengths of ten meters to one meter.
- Marine VHF Radio
A standard handheld marine VHF, mandatory on larger seagoing...
- Sincgars
Single Channel Ground and Airborne Radio System (SINCGARS)...
- Marine VHF Radio
High-frequency insertion loss is attributed to interwinding capacitance, series (leakage) inductance, and core and conductor losses. At high temperature it tends to become greater due to increase in the loss component of core permeability. Figure 3. Typical Frequency Response of an RF Transformer.
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What is a high frequency transformer?
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What is a high frequency power converter (VHF)?
Why are high-frequency transformers important?
Jul 1, 2020 · Very high frequency (VHF) technique has begun to be adopted in a wide range of applications, including the LED driving system, VRM and wireless power transmission.
- Yijie Wang, Oscar Lucia, Zhe Zhang, Yueshi Guan, Dianguo Xu
- 2020
High-frequency transformers operating in the tens to hundreds of kilohertz often have windings made of braided Litz wire to minimize the skin-effect and proximity effect losses.
The ferrite cores used for power transformers work in the low-frequency range (1 to 200 kHz usually [2]) and are relatively large in size, can be toroidal, shell, or shaped like the letters 'C', 'D', or 'E'.
A high-frequency transformer is used to convert power and at the same time to ensure proper voltage matching and provide galvanic isolation. The primary differentiator from grid transformers is the operating frequency, which makes it possible to reduce the size of the converter.
Jan 15, 2024 · High-frequency transformers are essential in modern electronics, managing power distribution at frequencies beyond standard transformers. Selecting the right core material is pivotal; it profoundly affects efficiency and performance.
