Driving method and driving apparatus of cross coil of automotive instrument
A coil-driven, automotive instrument technology, applied in instruments, regulating electrical variables, control/regulating systems, etc., can solve the problems of complex operation and high cost of driving methods, and achieve the effect of reducing driving costs, reducing driving costs, and simple and reliable solutions.
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[0017] Specific embodiment one: reference figure 1 To specifically describe this embodiment, the method for driving an automobile meter cross coil described in this embodiment is:
[0018] A constant current signal is applied to the first coil of the cross quadrature coil, and the driving current of the second coil is controlled to change to realize the driving of the cross coil.
Example Embodiment
[0019] Embodiment 2: The difference between this embodiment and the method for driving an automobile meter cross coil described in Embodiment 1 is that the method of controlling the driving current of the second coil to change is realized by using a PWM control signal.
Example Embodiment
[0020] Embodiment 3: The difference between this embodiment and the method for driving the cross coil of an automobile instrument as described in the first embodiment is that the method of passing a constant current signal to the first coil in the cross quadrature coil is: The first coil in the quadrature coil is connected in series between the positive and negative electrodes of the constant voltage power supply.
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