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  1. #1
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    comparator for oscillator circuit

    Hi guys,
    This below figure shows the topology of comparator between Vref=0.5V and Vramp which is sawtooth signal with the peak value also 0.5V. How are they compared to create the square signal in the output?
    Please, help me :)
    Thanks
    Click image for larger version. 

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  2. #2
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    Re: comparator for oscillator circuit

    This below figure shows the topology of comparator.
    No, there's no comparator in this circuit. The square wave is driven to node Q by voltage source V1, Qb voltage is generated by the inverter M7/M8.


    Q and Qb are driving the differential ramp generator.



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