A control method and device for a Doherty power amplifier
A control method and power technology, which is applied to parts of amplifiers, amplifiers, improved amplifiers to improve efficiency, etc., can solve the problems of Doherty power amplifier efficiency decline, large thermal power consumption of circuits, etc., to ensure linearity and improve Efficiency, the effect of reducing thermal power consumption
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0049] The Doherty power amplifier provided by the present invention may be a two-way balanced Doherty power amplifier, a two-way unbalanced Doherty power amplifier, a multi-way Doherty power amplifier or a multi-stage Doherty power amplifier. In this embodiment, a two-way Doherty power amplifier is taken as an example for illustration.
[0050] image 3 It is a schematic circuit diagram of the Doherty power amplifier and its control device provided by Embodiment 1 of the present invention. Such as image 3 As shown, the radio frequency signal is divided into two paths through the coupler 16, one path is output from the output end of the coupler 16, enters the Doherty power amplifier through the delay circuit, and the other path is output through the coupling end of the coupler 16, and then passes through the detector 13. The digital signal processing circuit 14 and the grid voltage regulating circuit output the regulation voltage to the grid of the carrier power amplifier 4; ...
Embodiment 2
[0069] Image 6 It is a structural block diagram of a control device for a Doherty power amplifier provided in Embodiment 2 of the present invention. Such as Image 6 As shown, the device includes a Doherty power amplifier output state acquisition module 20 , a Doherty and grid voltage regulation module 30 .
[0070] Wherein, the Doherty Doherty power amplifier output state detection module 20 is used to detect the output state of the Doherty power amplifier, and the Doherty power amplifier includes a carrier power amplifier and a peak power amplifier Doherty Doherty;
[0071] The grid voltage adjustment module 30 is used to adjust the grid voltage of the carrier power amplifier according to the output state of the Doherty power amplifier, so that the output power of the carrier power amplifier in the Doherty power amplifier drops from a saturated state to a process corresponding to the fallback amount , switch from Class B working status to Class AB working status.
[0072...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com