Switching Power Supply Module for DC/DC-LDO Path Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power supply technologies face challenges in efficiently combining high-power DC/DC regulators and low-power LDO regulators within the same electronic device, as LDO regulators consume excess power as heat, leading to poor power utilization efficiency, while DC/DC regulators are more suitable for high-power applications.
Innovation Solution
A switching power supply module that includes a first voltage regulation circuit (DC/DC regulator) and a second voltage regulation circuit (LDO regulator) with a control circuit to selectively switch between states, allowing the DC/DC regulator to supply power to both circuits when high current is needed and the LDO regulator to supply power when only one circuit is needed, optimizing power conversion efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If LDO regulator is used to supply power to electronic circuits, then construction cost is reduced and circuit simplicity is improved, but power conversion efficiency deteriorates due to excess power consumption in the form of heat
Solution Approach 1:
The patent implements dynamic switching between LDO and DC/DC regulators based on real-time power consumption requirements. The control circuit monitors the power consumption of the memory device and dynamically selects the appropriate regulator: LDO for low-power states and DC/DC for high-power states, thereby optimizing power conversion efficiency while maintaining cost-effectiveness
2Loss of energy
If DC/DC regulator is used to supply power to electronic circuits, then power conversion efficiency is improved, but construction cost increases and device complexity increases
Solution Approach 1:
The patent segments the power supply function into two distinct regulators: LDO regulator for low-power scenarios and DC/DC regulator for high-power scenarios. This segmentation allows each regulator to operate in its optimal performance range, achieving high power conversion efficiency when needed while keeping the overall system design modular and manageable
3Productivity
If DC/DC regulator is used for high current supply, then power conversion efficiency is improved, but device complexity and construction cost increase
Solution Approach 1:
The patent creates a universal power supply system that can handle both low-power and high-power requirements through a single integrated controller that manages two regulators. The control circuit universally monitors power consumption and dynamically allocates the appropriate regulator, making the system adaptable to varying power demands without requiring separate dedicated circuits for each scenario
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 solution improves the operational efficiency of both types of voltage regulation circuits by selectively using the DC/DC regulator for high-power applications and the LDO regulator for low-power applications, reducing static power consumption and adverse effects on load circuits during state changes.
Implementation Method 1
The first voltage regulation circuit is configured to regulate an original power as a first power. The power conversion efficiency of the first voltage regulation circuit is higher than the power conversion efficiency of the second voltage regulation circuit.
Implementation Method 2
The second voltage regulation circuit is configured to regulate the original power as a second power. The power conversion efficiency of the first voltage regulation circuit is higher than the power conversion efficiency of the second voltage regulation circuit.
Implementation Method 3
The control circuit is coupled to the first voltage regulation circuit, the second voltage regulation circuit, and the switch circuit. The control circuit is configured for controlling the switch circuit to operate in one of a first state and a second state.
Data Source
AI summary
A switching power supply module and a memory storage device are disclosed. The switching power supply module includes a first voltage regulation circuit, a second voltage regulation circuit, a switch circuit and a control circuit. The first voltage regulation circuit is configured to regulate an original power as a first power. The second voltage regulation circuit is configured to regulate the original power as a second power. The control circuit is configured to control the switch circuit to conduct a first power supply path under a first status to provide the first power to the first power supply target. The control circuit is further configured to control the switch circuit to conduct a second power supply path under a second status to provide the second power to the second power supply target.