Predriver System Multi-Voltage Power Modes
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Solution Overview
Problem
Existing power converters face inefficiencies in power consumption, particularly when operating in low-power modes, as they often require significant reductions in voltage to maintain functionality, leading to increased power usage and reduced performance.
Innovation Solution
A power converter system with a predriver system that operates in multiple modes, utilizing a first power supply with a higher voltage in high-power mode and a second power supply with a significantly lower voltage in low-power mode, allowing the system to maintain output voltage generation while reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a power converter operates in low-power mode with reduced voltage supply to the predriver system, then power consumption is reduced, but the ability to maintain output voltage generation and performance deteriorates
Solution Approach 1:
The predriver system dynamically switches between two power supply voltages (first voltage and second voltage) based on operational mode. In low-power mode, the system uses the second voltage to reduce power consumption while maintaining sufficient output voltage generation capability. In high-power mode, the system switches to the first voltage to maximize performance, thus dynamically adapting power supply characteristics to operational requirements.
Solution Approach 2:
The invention changes the power supply voltage parameter of the predriver system based on operational mode. By switching between a first power supply voltage and a second power supply voltage, the system optimizes the balance between power consumption and output voltage generation capability, allowing reliable operation in both low-power and high-power modes.
2Adaptability or versatility
If a power converter uses a single power supply voltage for the predriver system, then device complexity is reduced, but adaptability to different power modes deteriorates
Solution Approach 1:
The power supply system is segmented into two distinct power supplies: a first power supply providing a first voltage and a second power supply providing a second voltage. The predriver system can selectively operate from either power supply based on operational mode, enabling adaptability to different power requirements while managing complexity through modular power supply architecture.
Solution Approach 2:
The predriver system is designed with multi-functionality to operate from two different power supply voltages. This universal design allows the same predriver circuitry to function effectively in both low-power mode (using second voltage) and high-power mode (using first voltage), providing operational flexibility without requiring separate predriver circuits for each mode.
Data Source
AI summary
In accordance with embodiments of the present disclosure, a system for power conversion may include a power converter comprising a power inductor and a switch coupled to the power inductor and a predriver system for electrically driving a gate of the switch, the predriver system configured to operate in a plurality of modes including a high-power mode in which the predriver system is supplied with electrical energy from a first power supply having a first supply voltage and a low-power mode in which the predriver system is supplied with electrical energy from a second power supply having a second supply voltage significantly lesser than the first supply voltage.