PartyProfs - Circuit Song
Germany needs more engineers in circuit design! To motivate students for circuit design and to summarise the key properties of the three basis circuits, Prof. Ellinger, and his two students Andres Seidel and Felix Schwarze (the PARTYPROFs) from the Chair for Circuit Design and Network Theory have composed the “Circuit Song”.
There are three important circuits: 1. Common-source, 2. Common-gate and 3. Common-drain each of them having three parameters: A. Transfer function (voltage gain), B. Input impedance, and C. Output impedance. In the following table, the corresponding 3 × 3 knowledge matrix is illustrated. This knowledge matrix is summarised in the song text shown below.
| Configuration | Common Source | Common Gate | Common Drain |
|---|---|---|---|
| Input impedance |
Large capacitance ≈ 1/jwCgs + CMiller |
Small, resistive ≈ 1/gm |
Capacitive |
| Output impedance | High | Capacitive |
Small, resistive ≈ 1/gm |
| Voltage gain |
Large and negative ≈ -gm RL |
Large and positive ≈ gm RL |
≤ 1 |
The three basic transistor circuitries.
Together with 120 students (from more than 10 nations), the PARTYPROFs have produced the Circuit Song Video which was published on Youtube. In 6 months the video was watched more than 50 000 times. There were many articles in newspapers (e.g. the Bildzeitung 1). The song was played several times on radio stations (e.g. MDR jump). Prof. Elinger was invited to TV shows to talk about circuit design and the circuit song (e.g. for the MDR Friday afternoon show “MDR um 4”, 2).
PartyProfs - The Circuit Song © PartyProfs
|
Refrain - you will be a star! Strophe 1- Common Source |
Strophe 2- Common Gate Strophe 3- Common Drain |