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- What does 3V3 or 1V8 mean? - Electrical Engineering Stack Exchange
Some parts of the world (Germany for example) use a comma to separate the integer and fraction digits To avoid ambiguity in international situations, some people now put the letter for the units where the decimal point should be So "3V3" really means 3 3 Volts and "1V8" means 1 8 Volts
- For 3. 3V microprocessors, whats the best way to power the gate of a . . .
\$\begingroup\$ You ask this as if there's one-size-fits-all solution to this Well, there isn't If there was no voltage but the 3 3 V I'd make a charge pump (possibly using one of the uC's outputs as a clock for that) to make the 10 V Feed that 10 V with a resistor to teh MOSFET's gate
- led - Resistor requirement for 3. 3 V supply - Electrical Engineering . . .
\$\begingroup\$ All powers sources have a service or assistance if this was a lithium ion battery primary cell you can apply it directly if this was a computer power supply you may need a resistor of about 1 to 10 ohms So that the voltage drop across the resistor is your current and the resulting voltage matches the LED specifications
- Whats up with the operating voltages 5 V, 3. 3 V, 2. 5 V, 1. 8 V, etc. ?
Integrated circuits seem to have standard voltages of 5 V, 3 3 V, 2 5 V, 1 8 V, etc Who decides these voltages? Why do smaller devices require lower voltages?
- logic level - DHT22 issues at 3. 3V - What else could I try . . .
Meaning at 3 2999V it won't work Where is you 3V3 coming from? What is the impact of the votlage drop along the cable to the DHT22? How stable is the 3 3V rail? In simple terms: you're complaining it doesn't work when you're operating it right at the lower limit \$\endgroup\$ –
- voltage - Why does USB have Vcc=5V and high=3. 3V? - Electrical . . .
Information taken from here and note that where it says 3V6 it actually means 3V3 For high speed USB systems the voltage levels are smaller: - As you can probably tell the transmit logic levels have nothing really to do with either 5V or 3V3 logic systems
- Raspberry Pi Pico 3. 3V_EN pin control voltage inquiry
The Raspberry Pi Pico seems to have a 3 3V_EN pin which is basically the 3 3V regulator enable pin (3V3_EN) pulled up to 5V through a 100K resistor internally I am confused how to use this pin using a 3 3V logic of the Raspberry Pi model 3 GPIO pins to turn on or off the regulator inside the Pico
- stm32 nucleo 3. 3V usage - Electrical Engineering Stack Exchange
When using an STM32 Nucleo powered by a 5V power supply, can I use its 3V3 pin to supply 50mA? Or do I need to use, for instance, a 3 3V linear regulator attached to my 5V power supply?
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