The proportional-control solenoids used in some industrial hydraulic systems are usually driven by microcontrollers ... solenoid current. The circuit drives solenoids ranging from 6 to 40 V dc ...

When it is time to take your microcontroller project into the practical ... But this time I want to go ahead with another idea for the solenoid driver. In the schematic shown above, the NE555N timer ...

1. This switch-mode solenoid-drive circuit maximizes hold-mode power savings by using comparators to efficiently manage drive waveforms. The circuit presented here (Fig. 1) takes the same power ...

Such a design requires a physical barrier between the microcontroller and the 24Vsignals to avoid damage in case of errors or short circuits ... drivers, which have seven and eight outputs, ...