Envelope Tracker Module Terminal Layout for PA Efficiency
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Solution Overview
Problem
The efficiency of tracker circuits in envelope tracking systems deteriorates due to the arrangement configuration of voltage output and input paths in power amplifier circuits.
Innovation Solution
A tracker module with a module laminate, including a first external output terminal and input terminal disposed adjacent to each other, and a voltage supply circuit with integrated circuits such as a switched-capacitor circuit and output switching circuit, which generates and selectively outputs discrete voltages to the power amplifier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the tracker circuit is modularized in an ET system, then the ease of manufacture and device integration are improved, but the efficiency of the tracker circuit deteriorates due to suboptimal arrangement configuration of voltage output and input paths
Solution Approach 1:
The voltage supply circuit is segmented into functional modules (switched-capacitor circuit, output switching circuit, magnetic converter circuit) that can be independently designed and optimized. Each module is disposed on the module laminate in a specific arrangement that optimizes signal paths while maintaining modularization benefits for ease of manufacture and integration.
Solution Approach 2:
The patent utilizes the three-dimensional space on the module laminate by strategically disposing different circuit modules at specific locations. The voltage output terminal and input terminal are positioned adjacent to each other on the same laminate, creating optimized short-distance connections in the spatial arrangement that reduce energy loss while preserving modularization.
2Ease of operation
If the voltage output terminal and input terminal are disposed far apart on the module laminate, then the ease of connection to external components is improved, but the efficiency deteriorates due to increased path length and energy loss
Solution Approach 1:
The patent applies local quality optimization by positioning the voltage output terminal and input terminal in specific adjacent locations on the module laminate. This localized arrangement creates short voltage paths with minimal energy loss in the critical area, while other parts of the module maintain standard configurations for ease of connection to external components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration suppresses efficiency deterioration by optimizing the voltage supply path, enabling efficient power amplifier operation in various tracking modes.
Implementation Method 1
a switched-capacitor circuit (Switched-Capacitor Voltage Balance Stage) that generates, from the voltage, a plurality of voltages having different voltage levels
Implementation Method 2
a magnetic converter circuit (Magnetic Regulation Stage: Pre-regulator circuit) that converts a voltage
Data Source
AI summary
An ET module is provided that includes a module laminate; a first external output terminal and a second external input terminal disposed on the module laminate; and a voltage supply circuit disposed on the module laminate and configured to supply a voltage based on an envelope signal to a PA module through the first external output terminal. The second external input terminal is connected to a first path that connects the first external output terminal to the PA module. The second external input terminal and the first external output terminal are disposed adjacent to each other.