AN3288 datasheet(16/27 Pages) STMICROELECTRONICS

Motore di ricerca datesheet componenti elettronici

AN3288 Scheda tecnica(PDF) 16 Page - STMicroelectronics

Il numero della parte	AN3288

Spiegazioni elettronici	The purpose of this application note is to provide an accurate description

PDF	27 Pages

Scroll/Zoom	100%

Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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16 / 27 page

Special features

AN3288

16/27

Doc ID 18011 Rev 2

Figure 12.

Direction-defining state machine block diagram

The following is the code enabling this feature:

/* the direction identification algorithm starts above and below the

activation thresholds */

if((acc< activ_neg)||(acc> activ_pos))

{

area += (acc);

/* defining of 2 saturation values (positive and negative)

if(area>satur_pos) area= satur_pos;

else if(area<satur_neg) area= satur_neg;

}

if(area>0)

/* if area >0 --> "FORWARD" direction */

state = ACTUATE_FORWARD;

else if(area<0)

/* if area <0 --> "REVERSE" direction */

state = ACTUATE_REVERSE;

else

state = WAIT;

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