LED Driver Circuit Using Counting Sequence Voltage Control
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Solution Overview
Problem
Conventional wireless remote control systems for LED lighting devices require pairing of transmitters and receivers and involve complex decoding schemes, making them costly and inconvenient to use.
Innovation Solution
A driver system with a simple circuit architecture that outputs a control voltage following a counting sequence, allowing any remote control unit to adjust the operation of LED lighting devices without pairing or decoding, using a counter unit, buffer unit, and voltage regulation unit to generate control voltages for shifting operation states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wireless remote control systems with pairing and decoding schemes are used, then reliable control function is achieved, but device complexity and cost increase
Solution Approach 1:
The patent extracts and removes the complex decoding scheme from the receiver circuit, keeping only the essential signal reception and basic processing functions. This simplifies the receiver design while maintaining control reliability through the simplified counting sequence implementation.
Solution Approach 2:
The patent changes the control approach from complex decoded signals to simple counting sequences with different pulse widths. By varying the pulse width parameter directly, the system achieves multiple control functions (ON, OFF, dimming levels) without requiring complex decoding logic, thus reducing circuit complexity while maintaining reliability.
2Reliability
If pairing mechanism is implemented for remote control, then control security is improved, but ease of operation deteriorates
Solution Approach 1:
The patent makes the receiver universal by removing the pairing requirement. Any remote control unit can send commands to the receiver through the simplified counting sequence protocol, making the system universally compatible while maintaining basic control security through the structured pulse width encoding scheme.
3Measurement precision
If decoding scheme is added to remote control system, then control precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces the mechanical/logical decoding process with a direct pulse width measurement approach. The receiver measures the pulse width of incoming signals and directly maps them to control actions through the counting sequence, eliminating the need for complex decoding circuits while maintaining control precision.
Data Source
AI summary
The present invention relates to a driver system, comprising a counter unit, a buffer unit and a voltage regulation unit. The counter unit is adapted to sequentially activate one of the first output terminals upon receiving a driver signal and then output a control signal according to the driver signal. The buffer unit is adapted to output an isolated control signal upon receiving the control signal from the counter unit. Upon receiving the isolated control signal, the voltage regulation unit outputs a control voltage which corresponds to a given resistor provided therein. The control voltage is useful in driving an electronic device, and the operation of the electronic device may be further adjusted by changing the control voltage from one level to another.