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Results tagged with led
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user 52466
An LED is a light-emitting diode. Lighting an LED is considered the "Hello world" of a circuit design, and it can be as simple as using a series resistor, or it can get more complicated, involving PWM and multiplexing.
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Turning on a LED with negative voltage
connected
The problem starts when I feed the circuit with negative voltages, as you can see in the picture my MOSFET never activates, It simply won't work as intended, even if I decide to turn around the LED … , it uses ground as reference and it actually turns on the led but stays on permanently (meaning the mosfet doesn't open) since it's using GND as reference and providing 5v to the led and resistor in inverse …
- 1,547
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Accepted
Turning on a LED with negative voltage
, using the PMOS for positive voltage and NMOS for negative voltage, i had to add zener diodes with a 5.1v value to protect the gate from any kind of transient that can kill the gate inm the NMOS the led …
- 1,547