Circuits & Schematics Nexperia

1. One microcontroller pin drives two LEDs with low quiescent current
   Circuits Microcontrollers Usage Nexperia BZX84
   The basis for this Design Idea is a circuit that uses three resistors and a microcontroller-I/O pin to work as input high impedance or output to independently drive two LEDs ( Reference 1 ). The idea sounded good for this design, mainly because of ...
   11-06-2024
2. Momentary switch controls mains with latch-on and remote shutdown
   Circuits Supply Nexperia 1N4448
   The purpose of this Design Idea was to improve reliability, add new features, and replace a latching power switch with a momentary one. The features are: The switch has foolproof protection against too frequent switching, which can be harmful for ...
   25-10-2023

3. Inverters form three-phase VCO
   Circuits Oscillators Nexperia 74HCU04 74AHCU04
   You sometimes need an inexpensive VCO that can produce evenly spaced three-phase outputs over a wide frequency range. You could use tracking all-phase filters with only one oscillator, but this technique is difficult to implement and offers limited ...
   02-06-2021
4. Use two PicoGate devices for bidirectional level-shifting
   Circuits Digital Nexperia 74LVC2G241 74LVC2G07
   Bob Marshall EDN In new mixed-voltage systems, it is often necessary to level-shift a control signal from a high level to a low level. An open-drain device, such as the 74LVC2G07 , easily performs this shift. However, when a bidirectional signal ...
   08-02-2018

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