VHF Inverter

Analytical and experimental demonstration of a high

Nov 12, 2025 · To address this, the VHF community has developed the class EF or Φ (FE) inverter [7], [8], which utilizes the specific behavior of a quarter-wavelength transmission line.

2026 Feb 09

Reducing Circling Currents in a VHF Class Φ2 Inverter Based

Nov 16, 2022 · Abstract This paper proposes a fully analytical loss model to reduce circling currents and improve the power efficiency of a class Φ2 inverter. Firstly, analytical expression

2024 Aug 29

VHF converter for satellite propulsion

Compared with the existing VHF converters, the boost factor of the proposed inverter stage is increased to 2.06, which results in lower switching

2024 Apr 20

Reducing Circling Currents in a VHF Class Φ2

Nov 16, 2022 · Abstract This paper proposes a fully analytical loss model to reduce circling currents and improve the power efficiency of a class Φ2

2025 Jul 31

VHF converter for satellite propulsion application

Compared with the existing VHF converters, the boost factor of the proposed inverter stage is increased to 2.06, which results in lower switching current stress and power losses for its

2025 Aug 23

A Very High Frequency Self-Oscillating Inverter Based on a

Mar 13, 2019 · This letter introduces a self-oscillating very high-frequency (VHF) class Φ 2 inverter based on a free-running oscillator. The class Φ 2 is a low-voltage semiconductor stress, fast

2026 Feb 23

Reducing Circling Currents in a VHF Class Φ2 Inverter

Nov 16, 2022 · This paper proposes a fully analytical loss model to reduce circling currents and improve the power efficiency of a class Φ2 inverter. Firstly, analytical expression of the

2025 Oct 02

A Very High Frequency dc-dc Converter Based on a Class

Feb 23, 2024 · The converter power stage comprises a resonant inverter, a transformation stage, and a resonant rectifier. The resonant inverter accepts a dc input voltage, and generates very

2025 Apr 16

Reducing Circling Currents in a VHF Class Φ2 Inverter Based

Nov 16, 2022 · This paper proposes a fully analytical loss model to reduce circling currents and improve the power efficiency of a class Φ2 inverter. Firstly, analytical expression of the

2024 Feb 19

Analytical and experimental demonstration of a high

Sep 6, 2024 · This paper discusses a high-efficiency class EF (Φ) inverter that utilizes a modified input network instead of the conventional quarter-wavelength input transmission line. An

2024 Nov 22

A Very High Frequency Self-Oscillating Inverter Based on

Jun 4, 2025 · Abstract—This letter introduces a self-oscillating very high- frequency (VHF) classφ2 inverter based on a free-running oscillator. The classφ2 is a low-voltage

2025 Sep 01

Reducing Circling Currents in a VHF Class Φ<sub>2</sub> Inverter

This paper proposes a fully analytical loss model to reduce circling currents and improve the power efficiency of a class Φ2 inverter. Firstly, analytical...

2024 Apr 18

Reducing Circling Currents in a VHF Class Φ2 Inverter Based

2 days ago · Furthermore, detailed design guidance and equations are provided to calculate circuit parameters of a class Φ2 inverter, which reduces its circling currents and improves

2024 Aug 17

View/Download VHF Inverter [PDF]

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4 FAQs about VHF Inverter

What is a VHF DC–DC power converter?

A VHF DC–DC power converter consists of an inverter stage and a rectifier stage. When designing a VHF class Φ 2 DC–DC power converter, the input impedance of the rectifier at fundamental frequency is tuned to be nearly resistive. Thus, the rectifier is modeled as a resistor in the design of the inverter stage.

What are the limitations of a VHF inverter?

Other limitations of many inverter topologies appropriate to VHF operation include the use of bulk “rf choke” inductors (which is disadvantageous for rapid transient response and on-off control), and a tight tie between device parasitic capaci-tance and achievable output power and frequency , .

How to design a VHF Class 2 DC–DC power converter?

When designing a VHF class Φ 2 DC–DC power converter, the input impedance of the rectifier at fundamental frequency is tuned to be nearly resistive. Thus, the rectifier is modeled as a resistor in the design of the inverter stage. Therefore, the proposed design method can be easily adopted when designing the DC–DC power converter.

How can a VHF power system maintain a high efficiency?

To maintain a high efficiency while increasing the operating frequency, it is essential to realize zero-voltage-switching (ZVS) and zero-current-switching (ZCS) for VHF power systems [5, 6, 7].