DC-DC Converters with Burst Mode Technique

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The discussion focuses on the design of a DC-DC converter aimed at maintaining a constant output voltage through a feedback loop. The user implemented a Burst Mode technique to compare the output voltage with a reference voltage, generating an error signal for further processing. However, the circuit is not producing the expected pulse output from the comparator, only showing the error signal. Suggestions include addressing potential issues with the load floating relative to the feedback network and adding a ground on R1 to stabilize the circuit. The user seeks further advice to resolve the pulse output issue and achieve their design goal.
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Hello Everyone,

I am working on DC-DC converters. The actual approach of my circuit is that to maintained the output voltage remains constant for both line and load regulation. So that, I added the feedback loop of my circuit from the load resistor. To maintained the constant output voltage, I used (Bust Mode technique) to compare with two signals which are output voltage and reference voltage, after comparing both signal the comparator gives error signal. After that, another comparator compares with the generated error signal and pulse signal which should give the pulse of comparator output to the transistor. But, its not giving the pulse still its showing the error signal only. So, what should I have to do to achieve my goal.

Below I have attached the circuit image. So, please see the circuit image and give me the suggestions.
 

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I think the load is floating (well, 1Gohm anyway) relative to the feedback network. Try adding a ground on R1.
 
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