Variable Gate Drive Voltage for DC/DC Efficiency

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Traditional DC/DC voltage regulation systems face inefficiencies when operating at lighter current loads due to fixed gate drive voltage designs, which compromise performance and are limited to specific load ranges.

Innovation Solution

Implementing a system that dynamically varies gate drive voltage based on real-time operating efficiency and parameters, using digital control and power monitoring to optimize voltage regulation efficiency across different load conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If fixed gate drive voltage level is used to maximize operating efficiency at higher current loads, then thermal management is improved, but operating efficiency deteriorates when operating in lighter current load ranges

Engineering Contradiction:

Improvethermal managementVSAvoidoperating efficiency

Core Design Contradiction:

TemperatureVSLoss of energy

Solution Approach 1:

The patent applies dynamics by transitioning from fixed gate drive voltage to dynamically adjustable gate drive voltage levels. The system continuously monitors operating conditions (current load, temperature) and adjusts the gate drive voltage accordingly - using higher voltage levels for heavy loads to maximize efficiency and thermal management, and lower voltage levels for light loads to improve efficiency in that regime.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by varying the gate drive voltage level based on operating conditions. Multiple predetermined gate drive voltage levels are established, and the system switches between these levels depending on the current load and thermal state, thereby optimizing the balance between thermal management and operating efficiency across different operating ranges.

Inventive Principle:

Principle #35Parameter changes

2Loss of energy

If fixed gate drive voltage level changes are used to improve operating efficiency at lighter current loads, then operating efficiency is improved in specific load ranges, but adaptability deteriorates as the system is restricted to pre-determined voltage levels

Engineering Contradiction:

Improveoperating efficiencyVSAvoidadaptability to operating conditions

Core Design Contradiction:

Loss of energyVSAdaptability or versatility

Solution Approach 1:

The patent applies feedback by continuously monitoring operating parameters (current load, temperature, efficiency metrics) and using this information to dynamically adjust the gate drive voltage level. This closed-loop approach allows the system to adapt to changing operating conditions in real-time, overcoming the limitations of fixed pre-determined voltage levels while maintaining improved operating efficiency.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS8405373B2Systems and methods for intelligently optimizing operating efficiency using variable gate drive voltage

Publication Date: 2013.03.26 DELL PROD LP

AI summary

Systems and methods for intelligently optimizing voltage regulation efficiency for information handling systems by varying gate drive voltage value based on measured operating efficiency and/or other voltage regulation operating parameters. Different voltage regulation operating parameters may be dynamically monitored and recorded during a power conversion process, and these operating parameters may then be used to dynamically and variably control gate drive voltage level to improve/optimize voltage regulation operating efficiency performance.