Is there any device similar to MOS tube, but with one control terminal controlling multiple channels?

普拉卡图

Is there any device similar to MOS tube, but with one control terminal controlling multiple channels? [Copy link]

 

Please advise:

Is there a device similar to a MOS tube, but with one control terminal controlling multiple channels on and off at the same time?

(The control end is required to be electrical control, not mechanical control, not buttons)

maychang

[Is there a device similar to a MOS tube, but with one control terminal that can control multiple channels on and off at the same time? ]

Use several MOS tubes, connect the gate and source together, and lead out the drain separately.

qwqwqw2088

Device?

How many channels are there?

Do relays count?

chunyang

There is no such non-mechanical device, but it can be realized by connecting multiple electronic devices in parallel to the control end. Of course, it is conditional and needs to be analyzed whether electrical isolation must be used.

zhangdaoyu

I remember there was an electronic switch, similar to a relay, that could control

普拉卡图

maychang posted on 2023-4-13 10:44 [Is there a device similar to MOS tube, but with one control end to control multiple channels on and off at the same time? ] Use several MOS tubes, connect the gate and source together, and drain...

It seems to work.

普拉卡图

qwqwqw2088 posted on 2023-4-13 13:21 Devices? How many channels are multi-channel? Do relays count?

Yes, but the relay is too big. I just want to control the signal on and off, so I don't need a relay. Teacher Maychang said that it should be possible to use multiple MOS to control. If there is such a chip, the internal structure should be similar to multiple MOS, and the gates should be connected together and led out.

maychang

Placardo posted on 2023-4-13 16:07 Yes, but the relay is too big. I just want to control the signal on and off, so I don't need a relay. Maychang said that using multiple MOS controls should be...

[I just want to control the signal on and off, no relay is needed]

What is the current and voltage of your signal? If it is a relatively small signal, there is an analog switch chip that may meet the requirements of controlling the on and off of the signal.

led2015

Try analog switches, which are devices that integrate multiple switches and can achieve multi-channel on and off through electrical control.

qwqwqw2088

Placardo posted on 2023-4-13 16:07 Yes, but the relay is too big. I just want to control the signal on and off, so I don't need a relay. Maychang said that using multiple MOS controls should be...

Explain your application scenario more clearly.

For example, is the control method electrical control, is it a single-chip microcomputer or a PLC?

Load size, power, volume requirements, and the number of loads

Do these switch channels work simultaneously, or do they work asynchronously? Please give me some suggestions.

吾妻思萌

It would be nice if there were multiple MOS in the whole multi-channel switch chip.

普拉卡图

qwqwqw2088 posted on 2023-4-13 20:27 Explain your application scenario more clearly. For example, is the control method electrical control, is it a single-chip microcomputer or a PLC? Load size, ...

Okay, I will try to describe it in more detail next time. Knowing how to ask questions is also a science.

MrCU204

The field effect tube has a double gate.

But multiple sources (emitters) and multiple drains (collectors) only exist in integrated circuit chips.