Amplifier and Mobile Communication Device

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes a novel amplifier design that uses a configuration of lower and upper active sub cells with a bias controller. The amplifier manages the biasing of its components based on the output power, allowing for more efficient operation in devices like mobile communication equipment.

Use CasesContent extracted from patent full text and abstract with AI.

• Mobile phones and smartphones to improve signal amplification efficiency
• Wireless communication modules in IoT devices
• Signal boosting in portable electronic devices
• RF front-end circuits in wireless base stations
• Wearable communication devices and smartwatches

BenefitsContent extracted from patent full text and abstract with AI.

• Enhanced amplifier efficiency by dynamically adjusting bias based on output power
• Improved battery life for mobile devices due to reduced power consumption
• Better signal quality and consistency in communication devices
• Lower heat generation compared to static-bias amplifiers
• Scalable design for integration in various wireless devices

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

An amplifier includes a first lower active sub cell and a second lower active sub cell, each comprising an input terminal and an output terminal, wherein the input terminals of the lower active sub cells are connected to the amplifier input and the output terminals of the lower active sub cells are not shorted. Furthermore, the amplifier includes a first upper active sub cell and a second upper active sub cell, each including a biasing terminal, wherein the input terminals and the output terminals of the upper active sub cells are coupled between the output terminals of the lower active sub cells and the amplifier output. The amplifier includes a bias controller configured to provide a first biasing signal to the first upper active sub cell and a second biasing signal to the second upper active sub cell based on an output power of the output signal.