What is Duty cycle?
The fraction of each period during which a periodic pulse signal is high. In PWM it sets the average power.
Field: Embedded Systems & Firmware
Duty cycle in the explanations
An ideal buck converter outputs input voltage × duty cycle: 12 V × 0.25 = 3 V.
In an ideal step-down chopper (buck converter) with an inpu…The duty cycle is the fraction of each period during which the output is high: 250 ÷ 1000 = 25%.
A PWM signal has a period of 1000 counts, with the output h…A T flip-flop (T = 1) toggles on every clock edge, so its output completes one cycle every two clocks—half the clock frequency—with an exactly 50% duty cycle.
A T flip-flop whose output toggles on every clock edge prod…
Questions that mention Duty cycle (6)
- In an ideal step-down chopper (buck converter) with an input voltage of 12 V and a switch duty cycle of 0.25, what is the output voltage?
- A PWM signal has a period of 1000 counts, with the output high (1) for 250 counts of each period. What is the duty cycle?
- A T flip-flop whose output toggles on every clock edge produces an output at what multiple of the clock frequency?
- When a microcontroller produces an analog voltage by passing a PWM signal through a low-pass filter, what determines the output voltage?
- Which DC-DC converter outputs a DC voltage higher than its input?
- What is an advantage of pulsed plasma, which etches while switching the RF power on and off?
Related terms
Pulse-width modulation (PWM) Microcontroller Flip-flop PLL (phase-locked loop) DC-DC converter Plasma Radical Baud rate Bootloader Brown-out detection