Can LEDs be used as voltage regulators instead of zener diodes or transistors? If so, why? - Quora
pcb design - Designing A Circuit To Light An LED When Voltage Drops Below Threshold - Electrical Engineering Stack Exchange
2013-04-28 LED Current Limiter Using Zener For Reference Voltage – RustyBolt.Info/wordpress
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LED as Zener diode. Design Note 37 – Hobby Projects
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Simple Threshold Switch For An LED Indicator
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Solved 6. Voltage reference circuit using a Zener diode If | Chegg.com
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non-illumination uses of LEDs (a borrowed thread by request) : r/electronics
ADR363_Typical Application Reference Design | Voltage Reference | Arrow.com
Applied Sciences | Free Full-Text | LED Current Balance Using a Variable Voltage Regulator with Low Dropout vDS Control
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Noise in voltage references
Project 8 Introduction
LED drive circuit having temperature compensation — LED professional - LED Lighting Technology, Application Magazine
Figure 1 from A High-Dimming-Ratio LED Driver for LCD Backlights | Semantic Scholar
How to Build a Voltage Comparator Circuit with an LM393
