RF Voltage Generation Circuit With Low-Loss Switch Regulation
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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 radio frequency apparatus and voltage generating device that utilize a first and second voltage to generate an output voltage, with switches and a voltage regulating unit to produce positive and negative voltages, enabling control over RF transmission paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If voltage of control signals is used to generate power voltage for driving circuit, then power supply efficiency is improved, but voltage loss occurs during voltage generation
Solution Approach 1:
The patent introduces a voltage regulating unit as an intermediary component between the voltage generating device and the radio frequency circuit. This unit receives the generated output voltage and regulates it to produce stable positive and negative power voltages, minimizing voltage loss and ensuring efficient power supply to the driving circuit while maintaining the benefit of using control signal voltage for power generation
2Ease of operation
If RF switch transmission path is controlled by control signal voltage, then RF circuit operation is improved, but additional voltage regulation components are required
Solution Approach 1:
The voltage generating device is designed to perform multiple functions: it generates output voltage from control signal voltages, and the same output voltage is used by the voltage regulating unit to produce both positive and negative power voltages for the driving circuit. This multi-functional approach improves RF circuit operation while minimizing the addition of separate components, as the same voltage generation mechanism serves multiple purposes
Data Source
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AI summary
A radio frequency apparatus (200, 300, 400) and a voltage generating device (210, 310, 410) thereof are provided. The voltage generating device (210, 310, 410) includes a first switch (211, 311, 411) and a second switch (212, 312, 412). A first terminal of the first switch (211, 311, 411) receives a first voltage (Vcl). A control terminal of the first switch (211, 311, 411) receives a second voltage (Vc2). A first terminal of the second switch (212, 312, 412) receives the second voltage (Vc2). A control terminal of the second switch (212, 312, 412) receives the first voltage (Vcl). A second terminal of the second switch (212, 312, 412) and a second terminal of the first switch (211, 311, 411) are coupled to an output node (Nout2, Nout3, Nout4), wherein the output node (Nout2, Nout3, Nout4) outputs an output voltage (Vout2, Vout3, Vout4) related to at least one of the first voltage (Vcl) and the second voltage (Vc2).