Created
July 21, 2020 14:22
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A simple python script to calculate voltages and currents when using voltage divider bias. Can be useful when trying to find the DC Load Line. Here, I went with hardcoding the values, as passing by arguments can be difficult in unfortunate times.
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| #0.7 for Silicon and 0.3 for Germanium diodes | |
| vbe=0.7 | |
| vcc= | |
| vbb= | |
| re= | |
| rc= | |
| rb= #*10**3 | |
| #put rb=0, if rb isn't there. same for all | |
| b= | |
| #beta ^^ | |
| #r1=100 | |
| #r2=25 | |
| #rth=r1*r2/(r1+r2) | |
| #eth=r2*vcc/(r1+r2) | |
| #vbb=eth | |
| ib=(vbb-vbe)/(rb+(b+1)*re) | |
| ic=ib*b | |
| ie=ib+ic | |
| vce=vcc-ic*(rc+re) | |
| vce2=vcc-ie*(rc+re) | |
| print("ib =", ib, "\nic=",ic, "\nvce (with ic) = ",vce,"\nvce (with ie) = ", vce2) |
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