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Every week I add here a little story about a circuit conflict (circuits, like people in society, may interact - e.g. oppose each other). I number and date these ideas consecutively as they have appeared in my mind; then, I arrange the conflicts systematically of circuit evolution - passive > transistor > op-amp etc.
In order to know more about the conflict described, copy the circuit name from the table below, paste it in the subject field, add additional questions in the message body and e-mail me. Your e-mail will not be automatically answered; I will prepare every e-mail answer especially for you revealing the circuit conflict in a catchy and exciting manner. Thus you will get unusual and original explanations of the circuit operation that you have never seen before!
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| Number/Week | Subject | Circuit Conflicts |
|---|---|---|
| Voltage Conflicts | ||
|
Conflict 1 September 27, 2004 |
Capacitive differentiator | There is a conflict between two voltage sources in a capacitive differenciator: the input voltage source attacks the capacitor acting as a voltage source. Is this conflict harmful or useful? How do we present graphically this phenomenon? |
|
Conflict 2 October 04, 2004 |
Diode peak detector | There is a potential conflict between two voltage sources in a diode peak detector: the input voltage source attacks the capacitor acting as a voltage source. Is this conflict harmful or useful? |
|
Conflict 3 October 11, 2004 |
Sample & hold circuit | There is a potential conflict between two voltage sources in a sample & hold circuit: the input voltage source attacks the capacitor acting as a voltage source. Is this conflict harmful or useful? |
|
Conflict 4 October 18, 2004 |
Common-base amplifier | There is a conflict between two voltage sources in a common-base amplifier: the input voltage source attacks the output of the emitter follower. Is this conflict harmful or useful? How do we present graphically this phenomenon? Where is the output of the circuit? |
|
Conflict 11 December 06, 2004 |
Parallel connected (zener) diodes | If we connect two or more(zener)diodes with different zener voltages in parallel, a conflict between them arises; each diode strive to establish its own zener voltage. |
|
Conflict 12 December 13, 2004 |
Parallel connected LEDs | If we connect two or moreLEDswith different forward voltages (e.g. red and green diodes) in parallel, a conflict between them arises; the red diode extinguishes the green one. Why? How do we do use this phenomenon? |
|
October 25, 2004 |
Emitter-coupled amplifier | There is a conflict between two voltage sources in a common-base amplifier: the output of an emitter follower attacks the output of another emitter follower. Is this conflict harmful or useful? How do we present graphically this phenomenon? Where is the output(s) of the circuit? |
|
Conflict 6 November 01, 2004 |
Transistor differential amplifier | There is a dramatic conflict between two voltage sources in a transistor differential amplifier: the outputs of two emitter followers attack each other. Is this conflict harmful or useful? How do we present graphically this phenomenon? Where is the output(s) of the circuit? |
|
Conflict 15 January 03, 2005 |
Op-amp inverting amplifier | There is a moderate conflict between two voltage sources in a op-amp inverting amplifier: the input voltage source and the op-amp output oppose each other. Is this conflict harmful or useful? How do we present graphically this phenomenon? |
|
Conflict 13 December 20, 2004 |
Parallel connected voltage sources (generalization) | In general, there is a dramatic conflict between two parallel connected voltage sources; they attack each other striving to establish the voltages desired. Is this conflict harmful or useful? How do we present graphically this phenomenon? |
| Current Conflicts | ||
|
Conflict 7 November 08, 2004 |
Inductive differentiator | There is a conflict between two current sources in an inductive differenciator: the input current source attacks the inductor acting as a current source. Is this conflict harmful or useful? How do we present graphically this phenomenon? |
|
Conflict 8 November 15, 2004 |
Transistor amplifier with dynamic load | There is a conflict between two current sources in a transistor amplifier with dynamic load: the output of the first transistor attacks the output of the second transistor (dynamic load). Is this conflict harmful or useful? How do we present graphically this phenomenon? Where is the output of the circuit? |
|
Conflict 9 November 22, 2004 |
Transistor amplifier with dynamic load controlled | There is a dramatic conflict between two current sources in a transistor amplifier with dynamic load controlled: the output of the first transistor attacks the output of the second transistor (dynamic load controlled). Is this conflict harmful or useful? How do we present graphically this phenomenon? Where is the output of the circuit? |
|
Conflict 10 November 29, 2004 |
CMOS inverter | There is a dramatic conflict between two current sources in a CMOS inverter: the output of the first transistor attacks the output of the second transistor (dynamic load controlled). Is this conflict harmful or useful? How do we present graphically this phenomenon? Where is the output of the circuit? |
|
Conflict 14 December 27, 2004 |
Series connected current sources (generalization) | In general, there is a dramatic conflict between two series connected current sources; they attack each other striving to establish the currents desired. Is this conflict harmful or useful? How do we present graphically this phenomenon? |
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Last updated January 31, 2005