Adaptive Reference Voltage Control in Power Converters
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional power converter controller circuits are unable to effectively control high-side and low-side switches, leading to high power consumption.
Innovation Solution
A power converter with adaptively adjustable voltages based on detected currents, incorporating a high-side switch, low-side switch, controller circuit, current detector circuit, and counter, which adjusts the reference voltage to control the switches according to detected current values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional controller circuits are used to control high-side and low-side switches, then the power converter can operate, but power consumption is high
Solution Approach 1:
The reference voltage is made dynamically adjustable through a counter mechanism that adapts the voltage level based on detected current values. The counter modifies the reference voltage in response to current feedback, allowing the system to optimize power consumption while maintaining effective switch control under varying load conditions.
Solution Approach 2:
A current detector circuit provides feedback on the actual current flowing through the switches. This feedback is used by the counter to adjust the reference voltage, creating a closed-loop control system that reduces power consumption while ensuring reliable switch operation based on real-time current conditions.
2Adaptability or versatility
If the reference voltage is fixed, then the controller circuit is simple, but the power converter cannot adapt to varying current conditions
Solution Approach 1:
The counter is pre-configured with a maximum count value that determines the adjustment range of the reference voltage. This preliminary setup allows the system to adapt to varying current conditions without requiring complex real-time calculations, as the adaptation parameters are established in advance.
Solution Approach 2:
The reference voltage parameter is changed dynamically by the counter based on detected current values. Instead of fixing the reference voltage, the system adjusts this parameter in response to current conditions, enabling adaptability while keeping the control mechanism relatively simple through discrete voltage levels.
Data Source
AI summary
A power converter with adaptively adjustable voltages based on detected currents is provided. A current detector circuit detects values of currents flowing through a plurality of switch components multiple times. Each time when all of the detected values of the currents flowing through the plurality of switch components are normal current values, a counter counts down a reference voltage to decrease the reference voltage. When the detected value of the current flowing through any one of the plurality of switch components is an abnormal current value, the counter counts up the reference voltage to increase the reference voltage. A controller circuit controls a high-side switch and a low-side switch to operate according to the reference voltage received from the counter each time.