The IDM creates a constant 48 volt (DC) supply to all injectors by making and breaking a 12 volt source
across a coil in the IDM. The 48 volts created by the collapsed field is stored in capacitors until used by the
injectors.
The IDM controls when the injector is turned on and how long the injector is active. The IDM first energizes
the OPEN coil, then the CLOSE coil. The low side driver supplies a return circuit to the IDM for each
injector coil (open and close). The high side driver controls the power supply to the injector. During each
injection event, the low and high side drivers are switched on and off for each coil.
