Unlock instant, AI-driven research and patent intelligence for your innovation.

Series filtering inverse class E power amplifier and application method thereof

A power amplifier and series resonance technology, which is applied in the field of series filter inverse class E power amplifiers, can solve problems such as transistor breakdown, and achieve the effects of enhanced power output capability, low risk of breakdown, and high power

Inactive Publication Date: 2020-05-12
HOHAI UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the peak voltage of the class E power amplifier transistor is usually several times of the DC power supply voltage, too high a multiple will cause the transistor to be broken down

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Series filtering inverse class E power amplifier and application method thereof
  • Series filtering inverse class E power amplifier and application method thereof
  • Series filtering inverse class E power amplifier and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] like figure 1 As shown, a series filter inverse class E power amplifier, it includes: switching transistor S, series inductor L, radio frequency choke coil RFC, DC voltage source V DD , compensation shunt capacitor C, series resonant capacitor C s , the series resonant inductance L s , load resistance R.

[0036] The gate of the switching transistor S is connected to the input signal of the power amplifier, the source is connected to the ground of the DC power supply, and the drain is connected to one end of the series inductor L. The other end of the series inductance L is respectively connected with the radio frequency choke coil RFC, the compensation parallel capacitor C and the series resonant capacitor C s connected. The other end of the radio frequency choke coil RFC is connected to the positive pole of the DC power supply V DD . The other end of the compensation parallel capacitor C is connected to the power ground. Series resonant capacitor C s with seri...

Embodiment 2

[0073] Using the inverse class E power amplifier with series filtering in Embodiment 1, set its output power to 2W, the DC power supply voltage to 5V, the load quality factor to 10, and the operating frequency to 1GHz, according to the design method in Embodiment 1 The calculated component values ​​are shown in the table below.

[0074]

[0075] The resulting amplifier transistor drain-source voltage waveform V S , transistor current i S and the output voltage V O waveform like Image 6 shown.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a series filtering inverse class E power amplifier which comprises a switch transistor, a series inductor, a radio frequency choke coil, a direct current voltage source, a series resonance capacitor, a series resonance inductor, a compensation parallel capacitor and a load resistor, and further discloses an application method of the series filtering inverse class E power amplifier. The power amplifier has the characteristics of high efficiency, higher normalization power than a series filtering class E power amplifier and a parallel filtering inverse class E power amplifier, and lower ratio of transistor peak voltage to direct current voltage.

Description

technical field [0001] The invention belongs to the technical field of power amplifiers, and in particular relates to a series filter inverse class E power amplifier and an application method thereof. Background technique [0002] Class E power amplifier is a switching power amplifier that has been widely used since its invention in 1975. The output of the class E power amplifier uses an LC series resonant filter. Since then, the dual form of the class E power amplifier - the inverse class E power amplifier has appeared, and its output uses an LC parallel resonant filter. Normalized power is a metric for switching power amplifiers and is defined as PR / V DD 2 , where P is the output power, R is the load resistance, V DD is the DC supply voltage. Normalized power reflects the output power capability of a power amplifier. When the DC power supply voltage is low, the greater the normalized power, the easier it is for the amplifier to obtain higher power output. [0003] A...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/217H03F3/193H03F1/02H03F1/30
CPCH03F1/0211H03F1/301H03F3/193H03F3/2176H03F2200/451
Inventor 花再军黄凤辰李建霓陈钊
Owner HOHAI UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com