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
PWM duty cycle refers to the percentage of time that a pulse width modulated (PWM) signal is in the "on" state versus the "off" state. It is often represented as a decimal or percentage, with 0% indicating the signal is always off and 100% indicating the signal is always on.
The PWM duty cycle determines the average voltage output of the signal. When the duty cycle is high, the average voltage output will be closer to the maximum voltage, and when the duty cycle is low, the average voltage output will be closer to the minimum voltage.
Yes, PWM duty cycle can transform voltage by changing the average voltage output of the signal. This allows for precise control of the output voltage, making PWM an effective method for regulating power in electronic devices.
The frequency of a PWM signal does not directly affect the voltage transformation, but it can impact the overall performance. A higher frequency allows for faster switching between the "on" and "off" states, resulting in a more precise control of the output voltage.
PWM duty cycle is commonly used in applications that require precise control of voltage, such as motor control, power inverters, and LED dimming. It is also used in digital-to-analog converters and audio amplifiers.