timing retard for starting

KitCarlson said
Bad idea. Imagine flipping (inverting) the signal, the reluctor then interface triggers between teeth. That is about 45 degrees, but with uncertainty because there in not a defined edge where the flux changes quickly. The VR interface requires the signal to go negative, then triggers at a threshold going positive. The tooth edge you are thinking about would only happen with reverse rotation.

Thanks, and I thought yo might chime in. It all depends on how narrow the pulse is; I figure it the pulse is about as narrow as the tooth on the wheel, not 45 degrees wide. So I figured was pretty narrow but could well be wrong. Well, most wild ideas don't work out....