Testing the TK Tar Baby

[Magluvin]

I know more than you hope I know. 


In the 2002 Quantum Mag article there is NO diode.  I never could get that to work.  Ainslie never claimed to use any gate driver chips.  Only I have because I have not been completely successful with the 555 circuit, only with my digital PWM and driver chip.  My PWM and UCC27322 driver chip takes about 1/4 (or so) the power of the 555 circuit anyway.  Who would want to use the 555?

Hey Gm

Not bustin your chops, but, cmos 555 is VERY efficient. at 5v  50ua  yes micro amps

At 12v 150ua max 400ua   All less than 1ma   Thats pretty good in my book. ;]

Also they handle up to 3mhz vs the regular 555

Now you know more than ever. ;]

MaGs

[ionizer]

Actually, a 555 charges up a capacitor and discharges it through a resistor wasting ALL the energy into heat.
In my book that does not even come close to the word efficient.
But it is needed for the timing interval.

If you ask me a 12f629 would be much better since it times by counting clock pulses.
It is MUCH more accurate too and it is a lot easier to set the frequency, you do not have to replace any components just adjust the code or even add up and down buttons.

[Magluvin]

Actually, a 555 charges up a capacitor and discharges it through a resistor wasting ALL the energy into heat.
In my book that does not even come close to the word efficient.
But it is needed for the timing interval.

Lol the cmos555 uses much smaller caps than normal 555. Here is a data sheet for ya.

Im not against pwm chips. I just wanted to clarify that the cmos 555 is a fine circuit. Using 2 of these LMC555, we are still below GM's claim that his 2 ICs use 1/4 of the power of a 555.  Using 2 lmc555, 1 as a freq oscillator and on as the pwm(shown below) using 12v input, these 2 chips would consume 300ua to 800ua max. 
12v/.8ma = 9.6mw = 2 lmc555 max

So what is your pwm IC spec for power consumed at 12v?

Its not a real big deal, but GMs statement might be misleading. 555 is not a useless IC.

MaGs

[Magluvin]

here is the data sheet and the pwm from the pdf that i posted on above,

MaGs

[TinselKoala]

Gmeast.... thank you for proving my point. Your work was unable to make her circuit given in the Quantum magazine article work as claimed.

Now.... I hope you are aware of the prevarication that Ainslie indulges in with respect to her schematics.

Please note the description given for the schematic in the pdf you just linked. I have attached it below as an image. You can see, I hope, that she represents this NEW schematic, containing the diode, as the circuit used in the experiment reported in the Quantum magazine article.  Is the diode a significant difference, do you think? Which report of the experiment do you think is correct? When do you think people started working with a diode in that position? Are you even aware at all of my work, or Glen's work, or .99's work, with that circuit, with and without the diode?

And in the present case, the 5 mosfet circuit, there have been no less than FIVE different schematics claimed to have been used, and even now there are two different schematics given, in the two papers "published" on Rossi's JNP.

Just to drive the point home: In the 2009 "publication" you have linked, Ainslie claims to have used the circuit including the diode. Yet this diode was NOT in fact used in the original experiment, nor does it appear in the schematic given in the Quantum publication.