allennlowaton
Full Member level 5
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good day EDA fellows...
I got this PWM controller IC from a paper. From a figure below, there's a
one shot module after the oscillator. By the way, this oscillator utilizes a frequency spread technique. The oscillator produces a variable period with a fixed 50% duty cycle.
The paper said that the purpose of the one shot module is to rectify the duty cycle to a small value in order to avoid unexpected logic locking. I don't understand this statement. Please shed some light on this.
Below is the diagram of a one shot, I got from the other paper but the same author:
Below is the diagram of the PWM controller IC:
I got this PWM controller IC from a paper. From a figure below, there's a
one shot module after the oscillator. By the way, this oscillator utilizes a frequency spread technique. The oscillator produces a variable period with a fixed 50% duty cycle.
The paper said that the purpose of the one shot module is to rectify the duty cycle to a small value in order to avoid unexpected logic locking. I don't understand this statement. Please shed some light on this.
Below is the diagram of a one shot, I got from the other paper but the same author:
![19_1284650304.jpg](https://obrazki.elektroda.pl/19_1284650304.jpg)
Below is the diagram of the PWM controller IC:
![48_1284650423.jpg](https://obrazki.elektroda.pl/48_1284650423.jpg)