LED Driver Circuit High Low Side Control Modules
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lighting systems, particularly LED-based systems, face challenges in providing stable and efficient control for high side and low side circuits, which are crucial for maintaining consistent light output and energy efficiency.
Innovation Solution
A lighting apparatus is designed with a driver circuit comprising a high side control module and a low side control module, including a voltage stabilizer, current trigger, buck converter, and constant current sources, to manage and regulate the driving current for LED modules, ensuring stable operation and flexibility in lighting conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If LED lighting is used for energy-efficient illumination, then energy consumption is reduced and lifetime is extended, but control stability for high side and low side circuits becomes difficult to maintain
Solution Approach 1:
The driver circuit is divided into separate high side control module and low side control module, each with dedicated control circuits. This segmentation allows independent optimization and stabilization of each circuit's operation, resolving the control stability issue while maintaining LED energy efficiency
Solution Approach 2:
The patent implements feedback mechanisms through constant current sources that monitor and regulate the driving current to the LED module. This feedback ensures stable operation of both high side and low side circuits, preventing control instability while preserving the energy-efficient characteristics of LED lighting
2Adaptability or versatility
If high side control is implemented for LED driver circuits, then flexibility in lighting control is improved, but circuit complexity and control difficulty increase
Solution Approach 1:
The high side control module integrates multiple control functions including voltage stabilizer, current trigger, and constant current source into a single unified module. This merging reduces the overall system complexity while maintaining the flexibility benefits of high side control for LED lighting applications
3Stability of the object's composition
If voltage stabilizer and current trigger are added to the driver circuit, then light output stability is improved, but device complexity increases
Solution Approach 1:
The voltage stabilizer and current trigger are designed as multi-functional components that serve multiple purposes within the driver circuit. The voltage stabilizer not only stabilizes voltage but also works in conjunction with the current trigger and constant current sources to provide comprehensive control, reducing the need for separate dedicated components and thereby limiting the increase in device complexity
Data Source
AI summary
A lighting apparatus includes a light source, a driver circuit, a high side control module and a low side control module. The light source includes a LED module. The driver circuit includes a high side circuit and a low side circuit for generating a driving current to the LED module. The high side control module for controls the high side circuit. The high side control module includes a voltage stabilizer and a current trigger. The voltage stabilizer is placed on a voltage input of a high side. The current trigger is connected to an output of the voltage stabilizer. The low side control module controls the low side circuit. The low side control module includes a buck converter, a constant current trigger, and a low side constant current source. The buck converter is connected to a second input of the current trigger.