Voltage Regulating Circuit With Switchable Boost Bypass
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Solution Overview
Problem
Existing voltage boosting circuits suffer from low efficiency and high power consumption, leading to increased heat dissipation and system volume, particularly in applications requiring remote power distribution for radio remote units (RRUs) where thicker cables and larger components are necessary.
Innovation Solution
A voltage regulating circuit comprising a main loop unit, a voltage boosting unit, and a switching control unit that compares the input voltage signal with a reference voltage, short-circuiting the voltage boosting unit when the input voltage exceeds the reference, thereby reducing unnecessary power consumption and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If a direct voltage boosting circuit is used to boost voltage for remote power distribution, then the voltage can be increased to extend cable length and coverage area, but the conversion efficiency becomes low and power consumption becomes high
Solution Approach 1:
The patent applies partial action by using a bridge circuit configuration where only part of the input power needs to be converted. The circuit uses two switching elements and diodes to create a voltage boosting effect where the converter processes a portion of the power, while the other portion passes through with minimal conversion loss, thereby reducing overall power consumption while still achieving the required voltage boost for extended cable length
Solution Approach 2:
The patent introduces a bridge circuit as an intermediary structure between the power source and the load. This bridge circuit includes switching elements, diodes, and inductors that mediate the voltage transformation process, enabling efficient voltage boosting by routing power through intermediate components that facilitate controlled energy transfer and reduce direct conversion losses
2Power
If a direct voltage boosting circuit is used to boost voltage, then the voltage can be increased for remote power distribution, but heat dissipation increases and system volume increases
Solution Approach 1:
The bridge circuit configuration ensures that only the necessary portion of power undergoes full conversion, while the remaining power experiences minimal transformation. This partial conversion approach significantly reduces the energy lost as heat during voltage boosting, thereby lowering heat dissipation while maintaining the required output voltage for remote power distribution applications
3Power
If a direct voltage boosting circuit is used to boost voltage, then the voltage can be increased for remote power distribution, but system costs increase
Solution Approach 1:
The bridge circuit is designed to perform multiple functions within a single integrated structure. The same circuit components (switching elements, diodes, inductors) serve both voltage boosting and power routing functions, eliminating the need for separate voltage conversion stages. This multi-functionality reduces the total component count and system complexity, thereby lowering manufacturing costs while achieving the required voltage output for remote power distribution
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
The solution enhances the efficiency of voltage boosting, reduces power consumption, and minimizes heat generation and system volume, making it more cost-effective and space-efficient for applications like RRUs.
Implementation Method 1
a switching control unit, configured to compare the first voltage signal with a preset first reference voltage
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
Embodiments of the present invention provide a voltage regulating circuit, which includes: a main loop unit, configured to output, according to an input signal of a voltage source, a first voltage signal whose voltage value is equal to a voltage value of the voltage source; a voltage boosting unit, configured to output a second voltage signal according to the input signal, where a sum of the second voltage signal and the first voltage signal forms an output signal of the voltage regulating circuit; and a switching control unit, configured to compare the first voltage signal with a preset first reference voltage, and when the first voltage signal is greater than or equal to the first reference voltage, control the second voltage signal output by the voltage boosting unit to be zero. According to the foregoing voltage regulating circuit, a problem of low efficiency and high power consumption of a voltage boosting circuit in the prior art can be solved.