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stepper idle

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rusefi 2020-06-06 19:47:07 -04:00
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FAQ-Basic-Wiring-and-Connections.md
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@ -47,6 +47,8 @@ PWM valves (generally 2 wire) accept a variable duty-cycle square wave to contro
Bipolar stepper motors (generally 4 wire) have two coils that are energized in different patterns in order to move the valve open or closed, one step at a time. Bipolar stepper motors require **two H-Bridges** (Proteus) to control one bipolar stepper idle valve. Alternatively, a dedicated stepper driver IC can be used(Prometheus?) or added via a drop-in adapter board. GM, Toyota commonly use these.
https://youtu.be/z0rFOkAbKDQ https://youtu.be/SYNUcmNIgPo
Unipolar stepper valves are not supported by any hardware variants at this time. (May 2020) Chrysler commonly used these.