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SMD alternative to TIP31 and TIP32

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SiliconWizard:

--- Quote from: v8dave on November 11, 2019, 12:47:08 am ---
--- Quote from: rsjsouza on November 10, 2019, 11:58:27 am ---It seems an overcomplicated alternative to an on/off operation. Do you have links or rough drawings to what you are saying?

--- End quote ---

It is not ON/OFF as you have with solenoid valves, it is a servo so it is a linear output to drive the servo from closed to partially to fully open in both directions. +-5 with 0 for off. 2.5V would open the valve midway.

--- End quote ---

Oh alright, so it's a servo but requires the control signal to provide that much current, so I guess the servo is itself powered by the control signal?

T3sl4co1l:
Yup, sounds about right. Plenty of room on a VME board to do, pretty much any of these options, even the discrete one I think!  Far less power dissipation available though (depending on how much ventilation flows through the crate), making the analog version much less attractive.

Tim

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