Cant oscillate sine wave from bubba oscillator

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SUMMARY

The discussion centers on the inability to oscillate a sine wave using the "bubba" oscillator in pSpice. Key advice includes ensuring correct power supply pin connections, specifically noting that for TL084 and LM348 op-amps, pin 4 serves as Vcc, which differs from the typical Vee configuration in dual op-amps. This distinction is crucial for proper circuit functionality.

PREREQUISITES
  • Understanding of operational amplifier configurations, specifically TL084 and LM348.
  • Familiarity with pSpice simulation software.
  • Knowledge of power supply pin assignments in op-amps.
  • Basic concepts of sine wave oscillation in electronic circuits.
NEXT STEPS
  • Research the differences between Vcc and Vee in various op-amp models.
  • Learn how to configure a "bubba" oscillator in pSpice for sine wave generation.
  • Explore troubleshooting techniques for oscillation issues in electronic circuits.
  • Study the characteristics and applications of TL084 and LM348 op-amps.
USEFUL FOR

Electronics engineers, students learning about oscillators, and anyone working with pSpice simulations who needs to troubleshoot sine wave generation issues.

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Cant oscillate sine wave from "bubba" oscillator

hey
i can't oscillate sine wave from "bubba" oscillator using pSpice.
see the following attachment.
can u please help me?
 

Attachments

  • bubba_prtscr.jpg
    bubba_prtscr.jpg
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Make sure that you have your power supply pins right. TL084's and LM348's use pin 4 as Vcc, which is a little confusing when you used to pin 4 being used for Vee on all of the dual op amp parts.

- Mike
 


Mike_In_Plano said:
Make sure that you have your power supply pins right. TL084's and LM348's use pin 4 as Vcc, which is a little confusing when you used to pin 4 being used for Vee on all of the dual op amp parts.

- Mike

What is the diffrenace between Vcc and Vee?
the pins are proper connected as u can see in the attachment.

thank you,
Liran
 

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