Nemam osc,a umegju vremenu ovo sam procitao na nekom forumu za ovaj problem konkretno za moji model auta posto ovo im je neka mana mnogi se zale da im crkavaju regulatori...
Neki covek postavio link seme za pwm(mrtav link nemogu da otvorim) i neko se javio, nesto objasnjava i ovo sam zapazio
With the use of the NTE2389 and a "large" heatsink, it almost works! The ref ckt's input drive level is wired to the 50K pot that when adjusted, constantly reconfigures the "2/3Vcc" and "1/3Vcc" levels required to get the correct PWM output.
Unfortunately, the drive voltage from climate control module, N22, is just a DC voltage so the input drive voltage requires some 'modification'.
So this ckt actually is more complicated than the "darlington" transistor version since there's more parts required. However, if properly configured, it would NOT have the "offset" problem, which is good news. However, Q1's power dissipation can not be ignored so you still have to properly heat sink that transistor (FET).
Po ovo kaze da je cist dc napon...
Jel postoji neki drug nacin da testiram to...ili ako vec moze da uradim semu sto je poslao Paganko pa da javim rezultate?
[Ovu poruku je menjao MARK123 dana 30.06.2011. u 02:12 GMT+1]
MARK123