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+--- Thread: (42S) P-N Junction Diode Polarization (solver program) (/thread-15998.html)
(42S) P-N Junction Diode Polarization (solver program) - Luigi Vampa - 12-02-2020 06:37 PM
This is a solver program to calculate the polarization voltage of a p-n junction diode by means of a resistor. You can get the polarization current from Shockley's equation that you can find in MOHPC forum too.
VCC: supply voltage (Volts).
IS: saturation current (Amps). Typ. 1E-9 for Silicon.
VD: diode voltage (Volts). Typ. 0.7 is a good start point.
N: quality factor (n=1 ideal diode, 1<n<2 real diodes).
T: temperature (Kelvin).
R: resistor (Ohms)
00 { 86-Byte Prgm }
01 LBL "DIOD"
02 MVAR "VCC"
03 MVAR "IS"
04 MVAR "VD"
05 MVAR "N"
06 MVAR "T"
07 MVAR "R"
08 RCL "VCC"
09 1.60218ᴇ-19
10 RCL× "VD"
11 1.38064852ᴇ-23
12 ÷
13 RCL÷ "N"
14 RCL÷ "T"
15 E↑X-1
16 RCL× "IS"
17 RCL× "R"
18 -
19 RCL- "VD"
20 .END.
PS: step 15 now includes the proper E↑X-1 thanks to Valentín.
RE: (42S) P-N Junction Diode Polarization (solver program) - Valentin Albillo - 12-02-2020 08:54 PM
Hi, Luigi:
Just a quick note: these 3 steps:
15 E↑X
16 1
17 -
can be replaced by the single step:
15 E↑X-1
Regards.
V.
RE: (42S) P-N Junction Diode Polarization (solver program) - Luigi Vampa - 12-02-2020 08:55 PM
(12-02-2020 08:54 PM)Valentin Albillo Wrote:
Hi, Luigi:
Just a quick note: these 3 steps:
15 E↑X
16 1
17 -
can be replaced by the single step:
15 E↑X-1
Regards.
V.
¡Gracias maestro!