LED Driver Switch Control Circuit for Wireless Overheating
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Solution Overview
Problem
Existing light emitting diode driving apparatuses face overheating issues due to excessive current flow through signal-side resistors when a control unit with wireless functionality is active, leading to inefficiencies and potential damage.
Innovation Solution
Incorporating a switch control circuit connected to the control unit and signal switch unit, which controls the flow of direct current power to form high and low-level lighting signals, reducing current through the signal switch unit and signal-side resistor, thereby mitigating overheating by ensuring proper power distribution and usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the control unit comprises a wireless function, then the control unit can perform wireless operations, but the second current from the control unit is larger causing the signal-side resistor to overheat
Solution Approach 1:
The patent divides the power supply path into two separate paths: a first power supply path for the control unit and a second power supply path for the signal switch unit and light emitting diode units. This segmentation prevents the excessive current from the wireless function from flowing through the signal-side resistor, thereby resolving the overheating issue while maintaining wireless functionality.
Solution Approach 2:
The patent introduces a power supply switching circuit as an intermediary component that controls the power flow between the control power unit, signal switch unit, and light emitting diode units. This intermediary manages the current distribution to prevent overheating of the signal-side resistor while enabling wireless operations.
2Adaptability or versatility
If the control unit with wireless function is active, then wireless operations are enabled, but the excessive current causes overheating and potential damage
Solution Approach 1:
The patent segments the power supply system into distinct paths, isolating the control unit's power consumption from the signal path. This ensures that wireless operations can be performed without compromising the reliability of the signal-side components.
Solution Approach 2:
The power supply switching circuit acts as an intermediary that protects the system reliability by controlling power distribution, preventing excessive current from damaging components while maintaining wireless functionality.
3Ease of operation
If two currents flow through the signal-side resistor, then the control unit can operate with wireless function, but the resistor becomes overheated
Solution Approach 1:
The patent separates the control unit's power supply from the signal path by creating independent power supply paths. This allows the control unit to operate with wireless functionality while preventing excessive current from heating the signal-side resistor.
Solution Approach 2:
The power supply switching circuit serves as an intermediary that manages current flow, enabling control unit operation while protecting the signal-side resistor from overheating by controlling the distribution of electrical current.
Data Source
AI summary
A light emitting diode driving apparatus includes a control unit, a switch control circuit, a signal switch unit and a control power unit. The control power unit, the signal switch unit and a plurality of light emitting diode units are connected in series. The control power unit supplies power to the control unit. The control unit controls the switch control circuit to turn on the signal switch unit, so that a direct current power is through the signal switch unit to form a high-level part of a lighting signal for driving the light emitting diode units. The control unit controls the switch control circuit to turn off the signal switch unit, so that a low-level part of the lighting signal is formed.