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How to make MOS tube high-end drive circuit?

Hardware design
February 3, 2021 by Jocelyn 74

I made a MOS tube control relay. The following diagram shows the coil drive, but it is a low-end drive. It is said to be unsafe and does not conform to the general circuit rules. How to make a high-end drive.

All Comments

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Bradley Posted on February 3, 2021

Must high-end control? Half of the control is on the low end.

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Payton Posted on February 3, 2021

Why do you want to put 1 ohm resistor, your relay is a few V, should be based on your coil voltage to choose the above current limiting resistor, if your coil is 24V, then why VGS is greater than 6V, turn-on voltage Must be above 6V? Isn't MOS normally turned on with a small voltage?

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Grayson Posted on February 3, 2021

Just use a PMOS tube.

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