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Ambiguous witch feasible bjt led driver delay hot life

BJT Driving an LED - Above or Below? - Electrical Engineering Stack Exchange
BJT Driving an LED - Above or Below? - Electrical Engineering Stack Exchange

Circuit Shorts: Dual-BJT Constant Current | Elektor Magazine
Circuit Shorts: Dual-BJT Constant Current | Elektor Magazine

Purpose of pullup resistor in BJT LED driver circuit - Electrical Engineering Stack Exchange
Purpose of pullup resistor in BJT LED driver circuit - Electrical Engineering Stack Exchange

Application Designs of Low VCE(sat) BJT Circuits - OnElectronTech
Application Designs of Low VCE(sat) BJT Circuits - OnElectronTech

Drivers, Relays, and Solid State Relays | Mbed
Drivers, Relays, and Solid State Relays | Mbed

I have a PNP BJT and an LED driver (current sink, theoretically 20 mA and max 3.3 V). The LED driver is connected through an LED to the base of the BJT.
I have a PNP BJT and an LED driver (current sink, theoretically 20 mA and max 3.3 V). The LED driver is connected through an LED to the base of the BJT.

Circuit Shorts: Dual-BJT Constant Current | Elektor Magazine
Circuit Shorts: Dual-BJT Constant Current | Elektor Magazine

How to Build a Simple LED Driver Circuit
How to Build a Simple LED Driver Circuit

SOLVED] - LED Driver by using PNP transistor | Forum for Electronics
SOLVED] - LED Driver by using PNP transistor | Forum for Electronics

Driving an LED using a Transistor
Driving an LED using a Transistor

Activity: BJT device as a switch [Analog Devices Wiki]
Activity: BJT device as a switch [Analog Devices Wiki]

microcontroller - BJT Constant current LED driver - Electrical Engineering Stack Exchange
microcontroller - BJT Constant current LED driver - Electrical Engineering Stack Exchange

Solved The LED driver circuit of Fig. 1 is used to drive a | Chegg.com
Solved The LED driver circuit of Fig. 1 is used to drive a | Chegg.com

transistors - Led-driver (BJT) - Electrical Engineering Stack Exchange
transistors - Led-driver (BJT) - Electrical Engineering Stack Exchange

Using Transistor as a Switch | ermicroblog
Using Transistor as a Switch | ermicroblog

transistors - Led-driver (BJT) - Electrical Engineering Stack Exchange
transistors - Led-driver (BJT) - Electrical Engineering Stack Exchange

microcontroller - BJT Constant current LED driver - Electrical Engineering Stack Exchange
microcontroller - BJT Constant current LED driver - Electrical Engineering Stack Exchange

Choosing values for Bipolar Totem-pole MOSFET driver - General Electronics - Arduino Forum
Choosing values for Bipolar Totem-pole MOSFET driver - General Electronics - Arduino Forum

microcontroller - BJT Constant current LED driver - Electrical Engineering Stack Exchange
microcontroller - BJT Constant current LED driver - Electrical Engineering Stack Exchange

I have a PNP BJT and an LED driver (current sink, theoretically 20 mA and max 3.3 V). The LED driver is connected through an LED to the base of the BJT.
I have a PNP BJT and an LED driver (current sink, theoretically 20 mA and max 3.3 V). The LED driver is connected through an LED to the base of the BJT.

Simple constant current LED driver | Bryan Duxbury's Blog
Simple constant current LED driver | Bryan Duxbury's Blog

4.7: BJT Switching and Driver Applications - Engineering LibreTexts
4.7: BJT Switching and Driver Applications - Engineering LibreTexts

SOLVED] - LED driving with 2 BJT's Current Source Circuit | Forum for Electronics
SOLVED] - LED driving with 2 BJT's Current Source Circuit | Forum for Electronics

LED Current Controller - Dimming/Brightness (BJT Constant Current Limiter) - YouTube
LED Current Controller - Dimming/Brightness (BJT Constant Current Limiter) - YouTube

What is a purpose of BJT in an LED driver circuit with MOSFET? - Electrical Engineering Stack Exchange
What is a purpose of BJT in an LED driver circuit with MOSFET? - Electrical Engineering Stack Exchange

Rapid Analysis of BJT Switch/Driver Circuits - Technical Articles
Rapid Analysis of BJT Switch/Driver Circuits - Technical Articles