High side load switch 2 pmos

Here you are setting up a high side switch (the Pmos) to turn your 72.6 Ohm Load on and off. You are operating that Pmos from a Nmos (not needed, but good practise if you wish). Your setup is not working for various reasons, which I am happy to describe, one at a time if you wish... so that it will end up working. Let me know if you would like help, and as a starter, you could put in a 10k resistor between the Nmos gate and earth to pull the Nmos off when required, instead of wondering why it stays fully on all the time when you operate the gate switch.

Note that a Pmos has the arrow pointing in to the mosfet. A Nmos has the arrow pointing out of the mosfet.... you have one of each here.

The PMos is not as high side switch! Its a standard common source topology. It would be a so called high side with an NMosfet which then would need a higher voltage then the supply is plus the Vgs it would need to drive the load. But again, its just worng to call this a high side topology!

Any switch which operates on the high side of its load is a "high side switch". ... A ready made integrated driver is just one option of being able to switch at the high side of a load.

And because you Mr @2cent invented a new wording the hole world must follow your idea. Its a nice idea, unfortunately there is the real "high side" topology which must be separated from this common source PMos, which it is called correctly. Just you think it makes sense and you think you have learned something new it not by default correct. In this case its just wrong.

Shops etc sell a range of "high side switches" with built in drivers so that relatively high voltage loads can be switched from a low voltage user end starting point. A straight Pmos could be bought and used instead, as the "high side switch" if we prefer, without the driver benefits. The schematic above is a case where such a Pmos setup is being used as the "high side switch" where no high voltage is of concern.

"Common source" is the correct term for this topology, nothing else.

You are confusing amplifier terminology as used for signals, ... A d.c. switch on the load high side is a high side switch.

this is well known transistor terminology, what do you know about ampilfier terminology? Even less then for transistors! Common source is the FET-term equivalent for common emitter for BJT bipolar transistors FET="field effect transistor" which is a big familie. This has nothing todo with amplifier. Dont confused the world with "pseudo facts" you have invented for yourself. Mr messy try to learn the common terms in electronics and more people will understand your drivels.

If a mosfet switches between the load and earth, then that switch is on the low side of the load... it is then a Low Side Switch ...duh

A mosfet switch on the high side of the Load is a high side switch. A switch on the high side is a high side switch ... straight language not something I have made up. Buy one with useful drivers integrated if you wish.... but stop thinking that the name is defined only by having drivers.

Emitter/source fixed at one potential is a common soure/emitter. Collector/drain fixed on a potential called common collector/drain and base/gate on a fixed potential called common base/gate circuit. Everyelse you or other noobs invent as naming are useless and also misleading. Where is in your definition high or low side. I guess you define it badly by the place of ground, which seems to still have some magic for you. When will you learn that ground or reference points can be any place and also the positive rail! Its not always the negative rail. So this kind of circuit is called common source circuit if a PMos which explains everything. While you get with your noob invention in big trouble where is high and where is low side. You always talking about "drivers" dont know whats additional problems you have with drivers, but its your problem, the same is with amplifiers, i never talked about amplifiers. Write it in your hand This is a common source topology, where source is connected to a fixed potential. Everything else is nonsense and misleading

So what is this Mr. @2ctiby http://everycircuit.com/circuit/5650751481970688

The wrong settings in your link example do not show a sensible setup for real mosfets. It is about as stupid as your pretend knowledge which you are dishing out for uCox and Length on another thread in a desperate search for Rds. You obviously have never considered why EC and some other simulators use the term VT 0 instead of Vgs(th)

Stop trying to win every argument ... just accept that high side means high side. Don't try and dominate with side track issues, or abuse etc.

And as a matter of interest in your link... both switches are at a higher potential than each load, so they are both high side switches. ... now when would you connect an earth terminal to your house 230v + ... so forget relative earths and connect your earths to the negative instead ... then think about VTO and its meaning.

I know we cant stop you to talk bullshit. But we can tell anybody reading this what the correct term of wording is. And look, you are lost with your earth definition what high side or low side is not it depends of the potential if its positive or negative, very funny. Let me do that now with an NMos and wait what your definition is then. You turn in circles and talking more and more nonsense. But this is your well known natur since your first appearence. You need more help? Then please formulate your question if you can!

No more to say here... a high side switch is one which is on the high side of a load, drivers included or not.

and where is this "high" "low" "north" "south" "ground" "positive potential" what is your definition of "high side" tell us but be prepared it might get funny for you.

"If a mosfet switches between the load and earth, then that switch is on the low side of the load... it is then a Low Side Switch ...duh" This is what you defined, right?

then my second example with the PMos is a low side demonstration??? Very funny

When I said between Load and earth, it was using earth as being the lowest potential reference, as would be expected with the battery in the schematic presented ... you of course try to complicate issues in an effort to squirm out of things.