RF Voltage Generation Circuit for Low-Loss Transmission Path Control
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Solution Overview
Problem
Existing radio frequency (RF) electronic products face challenges in generating a power voltage for driving circuits using control signals, which affects the operation of RF switches and transmission paths.
Innovation Solution
A voltage generating device comprising first and second switches, and a voltage regulating unit that utilizes the voltage of control signals to generate an output voltage, which is then used to control the conducting state of RF transmission paths, including the use of diodes and charge pumps to produce positive and negative voltages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If voltage of control signals is used to generate power voltage for driving circuits, then the operational efficiency of RF apparatus is improved, but voltage loss occurs during the generation process
Solution Approach 1:
The patent introduces a voltage generating device as an intermediary component between the control signal voltage source and the driving circuit. This device includes switching elements and voltage regulation components that efficiently convert control signal voltage to the required power voltage, minimizing energy loss during conversion while enabling the driving circuit to operate properly.
2Measurement precision
If RF transmission paths are controlled using generated voltages, then the control precision is improved, but the device complexity increases
Solution Approach 1:
The voltage generating device is designed to serve multiple functions: it generates power voltage for driving circuits, provides controlled voltages for RF transmission path switching, and regulates voltage levels to ensure precise control. By consolidating these functions into a single multi-functional device, the patent achieves high control precision without proportionally increasing overall system complexity.
Data Source
AI summary
A radio frequency apparatus and a voltage generating device thereof are provided. The voltage generating device includes a first switch and a second switch. A first terminal of the first switch receives a first voltage. A control terminal of the first switch receives a second voltage. A first terminal of the second switch receives the second voltage. A control terminal of the second switch receives the first voltage. A second terminal of the second switch and a second terminal of the first switch are coupled to an output node, wherein the output node outputs an output voltage related to at least one of the first voltage and the second voltage.