How does this multivibrator work?

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Discussion Overview

The discussion centers on the operation of a multivibrator circuit, specifically focusing on the behavior of a transistor in a common base configuration. Participants explore the conditions under which the transistor operates, particularly in response to input pulses.

Discussion Character

  • Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant expresses confusion about how the multivibrator operates, noting that the pulse is not applied to the base of the transistor.
  • Another participant clarifies that the transistor is configured in a common base arrangement, indicating that the input is applied at the emitter.
  • Several participants inquire about the effects of a pulse on the transistor, questioning whether it turns on and the nature of the bias (reverse or forward).
  • It is noted that when a negative pulse arrives at the emitter, its voltage is lower than that of the base, suggesting that the transistor becomes forward biased under these conditions.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the overall operation of the multivibrator or the implications of the pulse on the transistor's biasing. Multiple viewpoints regarding the behavior of the transistor remain present.

Contextual Notes

Some assumptions about the circuit configuration and the nature of the input pulses are not fully explored, and the discussion does not resolve the specifics of the transistor's behavior in all scenarios.

aspsrilanka
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How ths multivibrator works? I can't understand.Because its pulse not given to base of transistor.
 

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The transistor is in the common base configuration. In this configuration, the input is at the emmiter.
 


so what happened to the transistor when a pulse is coming.if it turn on ?(revers bias or forword bias)
 


aspsrilanka said:
so what happened to the transistor when a pulse is coming.if it turn on ?(revers bias or forword bias)
When a negative pulse arrives at the emitter, its voltage is lower than the base voltage, so the transistor is forward biased.
 

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