Battery ADC count
Moderator: LT401Vette
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Mario
- Master MS/Extra'er
- Posts: 409
- Joined: Sun Jan 30, 2005 11:13 pm
- Location: Monroe, Wa.
- Contact:
Battery ADC count
I'm trying to being out the Battery Voltage ADC count on an MS2 V3 but am striking out. Can someone lend a hand?
Re: Battery ADC count
Looks like a 50K(R3) from raw bat volts to a 10K(R6) to ground. so 10/60 = 0.1666 volts per 1 raw volt. 0.16666 * 12 equals 2 volts at AD4-1. 204.8 ADC per volt = 409 ADC count for 12 volts.
306 SBFord, Torquer II EFI intake, 60 lbs injectors, 8 LS2 coils, VS Racing 7668 turbo, 4R70W, MS3x fw1.4 w/built in trans controller.
-
Mario
- Master MS/Extra'er
- Posts: 409
- Joined: Sun Jan 30, 2005 11:13 pm
- Location: Monroe, Wa.
- Contact:
Re: Battery ADC count
Thank you ol boy. Is that suppose to be 10/50?ol boy wrote:Looks like a 50K(R3) from raw bat volts to a 10K(R6) to ground. so 10/60 = 0.1666 volts per 1 raw volt. 0.16666 * 12 equals 2 volts at AD4-1. 204.8 ADC per volt = 409 ADC count for 12 volts.
Re: Battery ADC count
Nope, 10/60 x bat volt. Volt divider circuit math is Rg/(Rg+Ri). 10/(10+50)
306 SBFord, Torquer II EFI intake, 60 lbs injectors, 8 LS2 coils, VS Racing 7668 turbo, 4R70W, MS3x fw1.4 w/built in trans controller.
