Basically I'm trying to amplify the output of a hall effect sensor with a BJT, but I have no experience with hall effect sensors, or BJTs, but there is quite a bit more information on BJTs.
this is the BJT I'm looking at:
https://www.digikey.com/en/products/detail/stmicroelectronics/BDX34C/2827181
these are the two hall effect sensors that look like they can drive it:
https://www.digikey.com/en/products/detail/infineon-technologies/TLE4905LE6433HAXA1/1650234
https://www.digikey.com/en/products...sing-and-productivity-solutions/SS466A/701359
And there's going to be a 500 ohm resistor between the base of the BJT and the output of the sensor to prevent the BJT from overloading the sensor, trouble it, I don't know how to set up the sensor properly.
The objective is to drive an ignition coil with a transistor and hall effect sensor instead of mechanical contacts, so a nice sharp on/off is what i'm trying to get. The coil has a resistance of ~6 ohms, nominal operating voltage is 13.5V-14.5V, so the current draw should be ~2.3A, going for dedicated coils to eliminate normal spark distribution system, so the duty cycle should be less than 25%, and the max frequency should be 50HZ.
this is the BJT I'm looking at:
https://www.digikey.com/en/products/detail/stmicroelectronics/BDX34C/2827181
these are the two hall effect sensors that look like they can drive it:
https://www.digikey.com/en/products/detail/infineon-technologies/TLE4905LE6433HAXA1/1650234
https://www.digikey.com/en/products...sing-and-productivity-solutions/SS466A/701359
And there's going to be a 500 ohm resistor between the base of the BJT and the output of the sensor to prevent the BJT from overloading the sensor, trouble it, I don't know how to set up the sensor properly.
The objective is to drive an ignition coil with a transistor and hall effect sensor instead of mechanical contacts, so a nice sharp on/off is what i'm trying to get. The coil has a resistance of ~6 ohms, nominal operating voltage is 13.5V-14.5V, so the current draw should be ~2.3A, going for dedicated coils to eliminate normal spark distribution system, so the duty cycle should be less than 25%, and the max frequency should be 50HZ.