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1_2_3_Belasteter_Spannungsteiler_mit_Poti

FE

feslehrer

·

Created Sep 23, 2026

·

Updated Oct 20, 2026

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Schematic preview for 1_2_3_Belasteter_Spannungsteiler_mit_Poti
Details

Components

3

Schematic

Yes

Simulation

Transient analysis

Copies

Not copied yet

Tags
imported-circuit

About this circuit

Imported circuit. 8 import warning(s) were generated.

Circuit notes

Berechnung eines belasteten Spannungsteilers mit Ersatzschaltbild (ESB)

lin. Gleichungssystem mit 3 Unbekannten:

Es gelte: k = 25% = 0,25

  1. ↻ 1: 0 = -U1 - U2 + I1 · RP · (1-k) + I2 · RP · k
    ⇒ (U1+U2)/RP = I1 · (1-k) + I2 · k
  2. ↻ 2: ⇒ U2 = I2 · RP · k - I3 · RL
  3. Knoten: ⇒ 0 = I1 - I2 - I3

Lösung:

  1. 2,4 mA = I1 · 0,75 + I2 · 0,25
  2. 12V = I2 · 2,5 kΩ - I3 · 14.7 kΩ
  3. 0 = I1 - I2 - I3
    ⇒ I1 = 2.31 mA; I2 = 2.67 mA; I3 = -0.362 mA
    ⇒ Ua = I3 · RL = -5,32 V

Components used

Components used
3 components
NameManufacturerMPNCountType

DC Voltage Source

Generic

—

4

Official

Resistor

Generic

—

4

Official

Potentiometer

Generic

—

1

Official

SPICE netlist

* **************************************************
* Generated from CircuitSim Schematic
**************************************************
* net label +12V joins +12V::component:node-3:B +12V::node:stub-22
* net label -12V joins -12V::component:node-3:A -12V::node:stub-24
R_RL N8 0 14.7K Resistor_1d9c8cf9a__R_RL temp=27
R_RLast N12 0 14.7K Resistor_1d9c8cf9a__R_RLast temp=27
R_Ro N9 N6 7.50k Resistor_1d9c8cf9a__R_Ro temp=27
R_Rp_A N5 N12 'max(1m,10.0k*25.0/100)'
R_Rp_B N12 N4 'max(1m,10.0k*(100-25.0)/100)'
R_Ru N10 N7 2.50k Resistor_1d9c8cf9a__R_Ru temp=27
V_U1 N6 0 dc 12 ac 0 0 distof1 0 0 distof2 0 0
V_U2 0 N7 dc 12 ac 0 0 distof1 0 0 distof2 0 0
V_V1 N4 0 dc 12 ac 0 0 distof1 0 0 distof2 0 0
V_V2 0 N5 dc 12 ac 0 0 distof1 0 0 distof2 0 0
E_Ua1 Ua1 0 N12 0 1
E_Ua2 Ua2 0 N8 0 1
V_I1 N9 N11 0
V_I2 N11 N10 0
V_I3 N11 N8 0

**************************************************
* Models and supporting definitions follow
**************************************************
.model Resistor_1d9c8cf9a__R_RL r(tc1=0 tc2=0 tnom=27)
.model Resistor_1d9c8cf9a__R_RLast r(tc1=0 tc2=0 tnom=27)
.model Resistor_1d9c8cf9a__R_Ro r(tc1=0 tc2=0 tnom=27)
.model Resistor_1d9c8cf9a__R_Ru r(tc1=0 tc2=0 tnom=27)

**************************************************
* Simulation settings
**************************************************
.options rshunt=1e12
.tran 20u 1e-3 0 20u
.save V(Ua2) V(Ua1) I(V_I1) I(V_I2) I(V_I3)
.end

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