Hysteresis Controller with constant switching frequency

TOINO · 17th June 2006, 05:04 PM

This paper seems to be interesting:

http://www.elkraft.ntnu.no/norpie/10...Papers/029.pdf

classd4sure · 18th June 2006, 08:37 AM

It was interesting the first time we'd seen it, and the second. Look for a thread by analogspiceman on this.

TOINO · 18th June 2006, 11:48 AM

You mean this one ?

http://www.diyaudio.com/forums/showt...948#post793948

Well... at least everybody could read it now… not only you and Analog with your secret mail exchanges

classd4sure · 18th June 2006, 11:50 AM

Good job hunting that down

That's exactly the thread I had in mind.

TOINO · 18th June 2006, 08:34 PM

http://www.diyaudio.com/forums/showt...688#post793688

Wau! What a tread!

In http://www.diyaudio.com/forums/showt...328#post811328
Analogspiceman complains because has no inductor sense winding but this info is cleary visible on
the page 3 sch of the posted document.
Also on the picture of page 4 is easy to count the turns ratio 20:1.

As far as I understand, every body searches for a constant frequency solution…

What about the use of a PLL control referenced to a crystal oscillator?

One could control the reference of the comparator with the PLL and force a "constant" frequency!

Some thing like this: http://www.freepatentsonline.com/5160896.pdf
but with PLL instead of multiplier

Olivença é nossa!
Canas a concelho!

17th June 2006, 05:04 PM	#1
TOINO diyAudio Member Join Date: Oct 2004 Location: Coimbra	Hysteresis Controller with constant switching frequency This paper seems to be interesting: http://www.elkraft.ntnu.no/norpie/10...Papers/029.pdf

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18th June 2006, 08:37 AM	#2
classd4sure Account Disabled Join Date: Feb 2004	It was interesting the first time we'd seen it, and the second. Look for a thread by analogspiceman on this.

18th June 2006, 11:48 AM	#3
TOINO diyAudio Member Join Date: Oct 2004 Location: Coimbra	You mean this one ? http://www.diyaudio.com/forums/showt...948#post793948 Well... at least everybody could read it now… not only you and Analog with your secret mail exchanges

18th June 2006, 11:50 AM	#4
classd4sure Account Disabled Join Date: Feb 2004	Good job hunting that down That's exactly the thread I had in mind.

18th June 2006, 08:34 PM	#5
TOINO diyAudio Member Join Date: Oct 2004 Location: Coimbra	http://www.diyaudio.com/forums/showt...688#post793688 Wau! What a tread! In http://www.diyaudio.com/forums/showt...328#post811328 Analogspiceman complains because has no inductor sense winding but this info is cleary visible on the page 3 sch of the posted document. Also on the picture of page 4 is easy to count the turns ratio 20:1. As far as I understand, every body searches for a constant frequency solution… What about the use of a PLL control referenced to a crystal oscillator? One could control the reference of the comparator with the PLL and force a "constant" frequency! Some thing like this: http://www.freepatentsonline.com/5160896.pdf but with PLL instead of multiplier Olivença é nossa! Canas a concelho!

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