How does a PWM duty cycle transform voltage?

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Pulse Width Modulation (PWM) duty cycle is crucial in switched-mode power supplies (SMPS), particularly in boost converters, as it regulates the output voltage by controlling the average power delivered to the load. The duty cycle determines the ratio of on-time to off-time of the switching signal, influencing the energy transferred to the inductor and thus the voltage increase. Oscillation in PWM contributes to voltage transformation by allowing the inductor to store energy during the on phase and release it during the off phase, effectively stepping up the voltage. For further reading, the Wikipedia article on switched-mode power supplies provides valuable insights and references. Understanding these concepts is essential for optimizing boost converter performance.
davidcowling
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I need to find out how a certain pulse width modulation duty cycle is used in SMPS power supplies (specifically a boost converter).

Also, how does the oscillation contribute to a voltage transformation? (step up)

Any pointers to some articles are welcome
 
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davidcowling said:
I need to find out how a certain pulse width modulation duty cycle is used in SMPS power supplies (specifically a boost converter).

Also, how does the oscillation contribute to a voltage transformation? (step up)

Any pointers to some articles are welcome

Wikipedia's article is pretty useful, and they list lots of good reference pointers at the end:

http://en.wikipedia.org/wiki/Switched-mode_power_supply

.
 
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