Is it better to use electromagnet on and off for MOS tube or relay?

stm32f103vct6

Is it better to use electromagnet on and off for MOS tube or relay? [Copy link]

The electromagnet only performs two actions, opening and closing. Is it more appropriate to use a MOS tube or a relay to control it? Thank you for your guidance.

maychang

[The electromagnet only has two actions: opening and closing. Is it more suitable to use MOS tube control or relay control?]

Both MOS tubes and relays are acceptable.

MOS tubes have a long lifespan, while relays have a shorter lifespan due to the mechanical movement of the contacts. However, MOS tubes are small in size and consume less power, while relays are large in size and consume slightly more power.

qwqwqw2088

It depends on the occasion.

The coil and contacts of the relay are electrically isolated to prevent strong electricity from interfering with weak current signals.
If the electromagnet power is large, the working current is greater than several A, high voltage, and high power, relay control is more suitable.

stm32f103vct6

maychang posted on 2024-10-24 13:58 [The electromagnet only has two actions, open and close. Is it more suitable to use MOS tube control or relay control?] Both MOS tube and relay are fine. The life of MOS tube...

Thank you.

stm32f103vct6

qwqwqw2088 posted on 2024-10-24 17:18 It depends on the situation. The coil and contacts of the relay are electrically isolated to prevent strong electricity from interfering with weak current signals. If the electromagnet has a large power, the work...

Working current: 4A current when the electromagnet is pulled in

beyond_笑谈

stm32f103vct6 posted on 2024-10-24 17:34 Working current electromagnet pulls in at 4A current

If it is just for closing and opening, MOSFET is enough, and the freewheeling diode should be a fast recovery type.

stm32f103vct6

beyond_笑谈Published on 2024-10-25 08:49 If it is just for closing and opening, MOSFET will be enough, and the freewheeling diode should be a fast recovery type

Haode, OK, thanks for the suggestion