Riadenie hysterezy komparatora z MCU

[hobby@rq-elektronik.sk]

http://www.analog.com/library/analogDialogue/archives/33-08/adc/
"Conceptually, the flash architecture (illustrated in Figure 2) is quite
straightforward: a set of 2n-1 comparators are used to directly measure an
analog signal to a resolution of n bits. For a 4-bit flash ADC, the analog
input is fed into 15 comparators"


http://eceweb.uccs.edu/kalkur/Primer_flash.html
"For an N-bit flash A/D converter, it is required to have 2N comparators"

stale si myslim ze mam pravdu ja ;-)

ale uz to komplikujeme. potrebujem analogovo riadit prud cievkou a zaroven
mat trochu sancu ovplyvnovat rychlost spinania tranzistora, staci mi
hodnota "max" a "min". tie vygenerujem cez PWM z MCU a mam po starostiach.

p.rosko 

On Thu, 24 Apr 2008 15:26:30 +0200, "Jaroslav Lukesh" <lukesh@seznam.cz>
wrote:
> Mam pocit, ze vase uvaha neni spravna. Vhodne zapojenymi 4 komparatory 
> obsahnete 15 urovni. Podivejte se na vnitrni zapojeni FLASH AD
prevodniku.
> 
> ----- Original Message --