lab 2 ea

Broasca Sorin-Sebastian 8314Elementeredresoare

1.. Cu ajutorulmontajului se ridic experimental caracteristiciledirecte UI pentrudiodele de peplac, completndtabelulurmtor, care vacuprindetensiunilemsurate la cureniiindicai:

I=Tip1mA2mA5mA10mA20mA50mA100mA200mA500mA

Ge0.0860.1090.1450.1760.2100.2560.3050.3550.466

Si0.5580.5940.6410.6760.7120.7170.7770.8190.881

Sch0.1300.1480.2340.2530.2730.2900.3220.3480.400

2. Se determincaracteristicile inverse ale diodelor de peplac, cu ajutorulmontajului E=Tip5V10V15V20V25V30V

Ge78uA83uA86uA87.8uA90uA91.8uA

Si000000

Sch1.5uA1.9uA2.4uA2.9uA3.5uA4.4uA

4. Pentrudioda KS 1160 se vadeterminarezistenadinamicansens direct, caraport al diferenelor finite tensiune/ curent:

I=Tip50mA100Ma200mA500mA1000mA2000mA

KS11600.60V0.645V0.676V0.749V0.781V0.851V

[k]=Rezistenatdinamica KS 1160 : 894.932 k

Circuite de redresare

Reostat X4-X6 0-190ohm

1.RedresaremonolaternantaD1 in serie cu reostatul

2.Redresaremonoalternantacu filtraj capacitive S4

3.Redresor in punte fig 4.3 S1-S2

4.Redresor in punte cu filtraj S1-S2-S3

5.Redresor cu dublare de tensiune S4-S5