Amplitude Modulator

Nice

Quite nice, freq spectrum is not very clean enough to go on air, because of simple RC low/high pass, but this could made with some extra output LC filter. Modulation index is deep to almost 100% (is it just 50% by definition, because 100% would an inverted carrier, grummel....) as HURZ i must say this deep modulation could also be a problem for some old receiver, because they need, for carrier reconstruction, some rest carrier amplitude ~10% or even more. New PLL receiver can easily follow/demodulate this. Anyway, thumb up!

thanks hurz! I was actually trying to come up with a way to control gain dynamically rather than an actual AM radio transmitter. What's modulation index

After amplitude saturates to it's max it becomes phase modulator.

Whoa! I was also trying to make an amplitude modulator by controlling gain using transistor, but was unsuccessful.

Thank you for your encouragement faceblast, it's greatly appreciated, keep up the good work.

Thank you for posting humorous comments on my circuits...it's good to loosen up once in a while.

Lol

😎

I haven't visited your profile for quite some time hurz, I've been too busy, posted anything innovative recently? I've noticed a certain boredom tendency creeping into EC where users post random comments on each other's circuits, mostly frivolous comments, I guess it's humorous because everyones laughing, I suppose the community operates in mysterious ways...lol

Let's discuss MOSFET's. Although the MOSFET is a four-terminal device with source (S), gate (G), drain (D), and body (B) terminals, the body (or substrate) of the MOSFET is often connected to the source terminal, making it a three-terminal device like other field-effect transistors. Because these two terminals are normally connected to each other (short-circuited) internally, only three terminals appear in electrical diagrams. The MOSFET is by far the most common transistor in both digital and analog circuits, though the bipolar junction transistor was at one time much more common. The main advantage of a MOSFET over a regular transistor is that it requires very little current to turn on (less than 1mA), while delivering a much higher current to a load (10 to 50A or more). However, the MOSFET requires a higher gate voltage (3-4V) to turn on. In enhancement mode MOSFETs, a voltage drop across the oxide induces a conducting channel between the source and drain contacts via the field effect. The term "enhancement mode" refers to the increase of conductivity with increase in oxide field that adds carriers to the channel, also referred to as the inversion layer. The channel can contain electrons (called an nMOSFET or nMOS), or holes (called a pMOSFET or pMOS), opposite in type to the substrate, so nMOS is made with a p-type substrate, and pMOS with an n-type substrate (see article on semiconductor devices). In the less common depletion mode MOSFET, detailed later on, the channel consists of carriers in a surface impurity layer of opposite type to the substrate, and conductivity is decreased by application of a field that depletes carriers from this surface layer. It kinda helps understanding this stuff otherwise we become bored and then post frivolous garbage on each other's circuit home pages.

Don't start something you can't finish faceblast...just saying!

Lol = Lenz on lsd

Lenny check your stupid gate to gate mosfet demostration and come back with some more knowledge.

Lenz what's the point of copy and pasting an article on mosfet (sounds like Wikipedia) , doesn't prove your knowledge on the subject!

The article is from Wikipedia, just something I randomly posted in response to faceblast copy and pasting frivolous material on my circuits, just returning the favour...hurz, what gate to gate MOSFET demonstration are you talking about?

More than 200 bullshit curcuits and your are already lost with one circuit. Lol

Yet more frivolity...

LOL