- Thu Mar 18, 2021 5:25 pm
#49068
Hi, I am working for a while now on a digital dashboard, I am currently designing the tachometer input. As I want my display to work with as many signal types as possible, I was wondering if the following schematic would work with either active hall effect sensor, open-drain hall effect sensor, pwm from ecu (5v) and direct signal from low side coil (from 5v to 50v let's say).
So let me know what you think of the first schematic, and if the seconde scheme is well designed to protect the level switching mosfet from too high voltage (5.1V zener diode).
Thank you very !
So let me know what you think of the first schematic, and if the seconde scheme is well designed to protect the level switching mosfet from too high voltage (5.1V zener diode).
Thank you very !
Attachments
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