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Recent content by MinhNguyen

  1. M

    Apply 5V to 3.3V Analog to Digital Converter channel

    Hi, I am wondering what happens when apply 5V to microprocessor with 3.3V ADC channels? Will it fried the microprocessor? Thanks, Minh
  2. M

    Mosfet Stray Voltage

    Thank you for your Advice. In your previous comment about the "30V is a bit low for 24V nominal voltage." May I ask how do you calculate a minimum requirement for Diode voltage rating at a 24V circuit? Should the emf diode protection be selected base on the current rating of the load? Thanks, Minh
  3. M

    Mosfet Stray Voltage

    Hi Klaus, Thank you for your advise. Yes, the LEDs are connected to 5V source. When the solenoid is off, there is a flyback prevention through the path of the diode and back to the 24V power supply. Would this path efficient for preventing any reverse current? Thanks, Minh
  4. M

    Mosfet Stray Voltage

    Thank you for your detailed analyze. Please see attachment of the schematic.
  5. M

    Mosfet Stray Voltage

    Hi, Please find my responses below. I cannot attach a picture from my phone. I will add later on today. Thank you for your help. Minh
  6. M

    Mosfet Stray Voltage

    Hi, I am starting learning about the MOSFET. I am using dual Mosfet to control solenoids. I connected pump's positive terminal to 24V power supply, and the negative side connects to Mosfet's Drain terminal, and a diode to prevent back EMF. I have a 10K pull down resistor between gate and...
  7. M

    UART issue DSPIC33EP

    Hi, I am having very weird issue with communication between software application and a DSPIC33EP through UART channel. The software application i constantly sending down the command string to the MCU and the MCU will return the command as received for confirmation purpose. The command string...

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