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how to test Single P-Channel HEXFET Power MOSFET " IRF9520 " ? thanks

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danishdeshmuk

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how to test Single P-Channel HEXFET Power MOSFET " IRF9520 " ?

thanks
 

Short instructions on how to test mosfets with parallel diode

Test_MOSFET_1.3.jpg
Test_MOSFET_2.3.jpg
Test_MOSFET_3.3.jpg
in pict. 3/3
capacitor has change-over switch for charging C
and connect charge to gate.
Test switch for dicharging C and Cgs
 

Instructions in post #2 sheet 1/3 are included with diode and diode test .
( sheet 1/3 middle pict. , DVM show 0.4...0.8 "diode voltage drop" )

If Mosfet don`t have parallel diode , DVM show infinite resistance
between D - S with both meter polarity , when G - S is connected with resistance
 
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what the difference between the charging & discharging of capacitor Vs. charging & discharging of cell (or batteries) ?
 

Capacitor vs. Battery

Capacitor:
* store energy in an electric field.
* charge stored in a capacitor is proportional to the potential difference between the two plates
* is charged by applying a voltage across the terminals which causes positive and negative charges
* inner resistance is near infinite.
* far lower energy density (compared to battery)
* near instant charge and discharge
* very good at storing charge for short time periods
* manufacturable in nearly any voltage
* charge/discharge cycles near infinite

Battery:
* store electrical energy into chemical energy .
* chemical reaction results in a potential difference between the two terminals
* energy is stored with chemical reactions
* inner resistance is small.
* high energy density (compared to capacitor)
* limited charge/discharge current depending on chemistry and design
* slower-but-steady flow of charge
* voltage determined by chemistry
* limited number of charge/discharge cycles (mostly chemistry dependent)

SuperCap_LiIon_batt.png
 
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