- #1
Can somebody tell me the calaculations of this 2 transistor circuit?
- Thread starter michael1978
- Start date
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- Tags
- Circuit Transistor
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Discussion Overview
The discussion revolves around the calculations involved in a two-transistor circuit, specifically focusing on understanding how a current of 10mA is achieved. Participants explore various approaches to analyzing the circuit, including the relationships within bipolar junction transistors (BJTs) and the implications of specific voltage values.
Discussion Character
- Exploratory
- Technical explanation
- Homework-related
- Debate/contested
Main Points Raised
- Some participants inquire about the calculations for the circuit, expressing confusion over how the current of 10mA is derived.
- One participant suggests labeling the voltages at each node as a starting point for analysis.
- Another participant emphasizes the importance of understanding the relationships between the different ports of a BJT to solve the circuit.
- A later reply offers a hint regarding the base-emitter voltage of the 2N5401 Q6, suggesting that it is approximately 0.62V when it begins to turn on, which influences the current through a resistor in parallel.
- Some participants express frustration with the perceived difficulty of the problem and mention that they found answers in another forum, providing specific calculations related to the base-emitter voltage and current through the resistor.
- There is a discussion about the goal of the forum being to share knowledge rather than simply providing answers, with some participants advocating for a more engaged learning approach.
Areas of Agreement / Disagreement
Participants do not reach a consensus on the best approach to solve the problem, and there are competing views on how to assist the original poster in understanding the calculations.
Contextual Notes
Some assumptions about the circuit's operation and the specific values used in calculations are not fully explored, leaving room for uncertainty in the analysis presented.
