Punto De Operacion BJT

Fixed Bias Circuit

 Assemble the following circuit

Measure the voltage and current following the circuit, then replace the transistor BC547C 2N2222 by, and then measure circuit voltages and currents.

0.656 V 0.692 V

9.122 V 3.375 V

9.122 V 3.375 V

0.026 mA 0.026 mA

0.021 A 0.021 A

0.021 A 0.021 A

Bringing a lit match to the transistor during 5 seconds while measuring the voltage VCE and IC and record the current value, then change the 2N2222 transistor for

The BC547C and re-measure the voltages and circuit currents.

2N2222 BC547C

VCE

IC

Issuer stabilized Circuit

 Assemble the following circuit

Measure the voltage and current following the circuit, then replace the transistor BC547C 2N2222 by, and then measure circuit voltages and currents.

1.639 V 3.218 V

9.491 V 5.515 V

9.491 V 5.515 V

0.026 mA 0.026 mA

0.021 A 0.21 A

0.021 A 0.21 A

Bringing a lit match to the transistor during 5 seconds while measuring the voltage VCE and IC and record the current value, then change the 2N2222 transistor for The BC547C and re-measure the voltages and circuit currents.

2N2222 BC547C

VCE

IC

Voltage divider circuit

 Assemble the following circuit

Measure the voltage and current following the circuit, then replace the transistor BC547C 2N2222 by, and then measure circuit voltages and currents.

2.397 V 2.431V

7.636 V 7.508 V

7.636 V 7.508 V

2.553 mA 2.553 mA

0.023 A 0.023A

0.023 A 0.023A

Bringing a lit match to the transistor during 5 seconds while measuring the voltage VCE and IC and record the current value, then change the 2N2222 transistor for The BC547C and re-measure the voltages and circuit currents.

2N2222 BC547C

VCE

IC

Voltage divider circuit with transistor PNP

 Assemble the following circuit

Measure voltages and currents following the circuit.

BC557C

VB

VC

VCE

IB

IC

IE

Theoretical analysis.

Perform theoretical analysis of all previous circuits. Changes to their respective transistor.

fixed bias circuit

stabilized emitter circuit

voltage divider circuit

SIMULATED ANALYSIS

Perform simulated in Pspice analysis of all previous circuits. With their respective changes transistor.

fixed bias circuit

stabilized

...