Silicon Laboratories. has been granted a patent for a switching power amplifier that features harmonic suppression. The design includes a polyphase converter that generates multiple rail-to-rail signals and a power amplifier stage with two branches of transistors, effectively reducing third and fifth harmonics in the output. GlobalData’s report on Silicon Laboratories gives a 360-degree view of the company including its patenting strategy. Buy the report here.
Smarter leaders trust GlobalData
Access deeper industry intelligence
Experience unmatched clarity with a single platform that combines unique data, AI, and human expertise.
According to GlobalData’s company profile on Silicon Laboratories, Low Energy IoT network protocols was a key innovation area identified from patents. Silicon Laboratories's grant share as of July 2024 was 74%. Grant share is based on the ratio of number of grants to total number of patents.
Switching power amplifier with harmonic suppression technology
The granted patent US12047042B2 describes a novel switching power amplifier that incorporates a polyphase converter designed to transform a frequency or phase-modulated input signal into multiple rail-to-rail signals. These signals include a 50% duty cycle signal, a positive 25% duty cycle signal, and a negative 25% duty cycle signal. The power amplifier stage consists of two branches, each utilizing P-channel and N-channel transistors controlled by these rail-to-rail signals. The design aims to enhance the efficiency and performance of power amplification by ensuring that the output currents from the branches are appropriately timed and superimposed.
Additionally, the patent outlines various configurations for the polyphase converter, including the use of filters and limiting amplifier circuitry to generate the required rail-to-rail signals. The converter can employ a delay-locked loop to achieve precise phase shifts and signal combinations. The method of suppressing harmonics is also detailed, emphasizing the importance of generating non-overlapping drive signals for the transistors to prevent distortion. This innovative approach to signal processing and amplification is expected to improve the overall functionality of switching power amplifiers in various applications.
To know more about GlobalData’s detailed insights on Silicon Laboratories, buy the report here.
Data Insights
From
The gold standard of business intelligence.
Blending expert knowledge with cutting-edge technology, GlobalData’s unrivalled proprietary data will enable you to decode what’s happening in your market. You can make better informed decisions and gain a future-proof advantage over your competitors.
GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
