Recent content by extremepilot

I added a 2Megohm resistor between D7 and C16 and it looks like it took care of the slant type distortion. Not sure if this is right but I redesigned the detector with R as my 1Megohm load and solved for C. The output signal is around 110mV peak now: http://i.imgur.com/5oDbd.png Can I get the...

I don't know how it can charge up through D7 unless it's leakage current, I am guessing that's not causing the main issue , but how do I relieve it? High resistance to ground between C16 and D7?

Im working in Pspice, I have an RF amp with a modulated input signal coming in on ~600kHz carrier wave and an amplified signal coming out, here is what the output looks like 1Megaohm load after a blocking capacitor to isolate AC: http://i.imgur.com/56NSI.png I am trying to use a simple...

Thanks. I have no idea what LTspice is, but doesn't look like it's installed on my school's computers. Part of the assignment is to enter these characteristics (K,n V,t W, L etc ) into one of the regular Mosfet Ntype transistor models so it acts as a 2n7000, rather than using the 2n7000 model...

Thanks, tried this - I placed the 2n7000 in the circuit and clicked "Edit Properties" on it but I can't find ANYTHING in the property editor Any help is appreciated

That is V,t which is 26mV like you said but what I am looking for is K,n which is in units if mA/V I believe

Hi, Working on a project, I am told to find the K,n value of a specific transistor (2n7000), given the spec. sheet. I know K,n can be found from the formula: I,d = K,n * (V,gs - V,tn)^2 I'm close, from the spec sheet, I can use a V,gs value and a corresponding I,d value, however not sure what...

Thank you VERY much

Thank you One more stab at it ... the output is pulled low if either or both of the inputs are grounded (low/'0'). If both inputs are high (connected to voltage over +3.5v) the output is not 'pulled down' and is high. Right? Also can you simply disconnect the input end of both diodes to prevent...

I think I actually understand and don't know why this didn't occur to me before. But in the linked schematic the output gets connected to ground, correct? I am working with a breadboard and understand that you can't just have (lets say 5v) power connected with no ground connected whatsoever, so...

Ok I actually understand - if any of the diodes are grounded they conduct charge through them and away from the output preventing a 1 - then is the output also grounded? if not which part of the circuit gets grounded?

Thanks! The first part is basically the definition of an and gate, but could you please elaborate on "As long a one input is low, that diode will be conducting. A diode drop in voltage is ~0.6v hence a low state." ? If one diode is conducting it would be conducting towards the input (since...

Hi, I am new to EE. On this page - http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/diodgate.html#c1" - the very first circuit shows a diode-resistor AND gate. How does that work? I understand the OR gate shown right below it, but... the two inputs on this AND gate are connected to reversed...