Duty Cycle is the ratio between duration of a pulse and the entire period of a (repeating) square wave, expressed in %.
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How do I calculate battery life allowing for duty cycle?
I have a battery rated at 2610mAh.
The device it's powering transmits to the network for 35ms during this time it uses 1.95mA of power. the rest of the time the device draws 0mA. I want to workout how ...
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120 views
What is my microcontroller power duty cycle?
Say I have a uC active for 1s every 100s, sleep otherwise. This will lead to 1% duty cycle.
But what if it is active ones every ten seconds, and once every 100 seconds, and then once every week? ...
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118 views
how to create a square wave with large duration and high duty cycle
For a "plant waterer circuit" I would like to add a safety feature that prevents watering for over ~3 minutes, and delays the next watering from occurring for ~12 hours.
Currently the circuit is ...
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175 views
Joule Thief - operation and the 'supercharged' version
I've made a joule thief, and it works fairly well, but not as well as I would like.
It's powering a 3.2v LED from a 1.2v battery, but it's very dim. I'm hoping increasing the voltage from the JT ...
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How to choose the right premble time, acknowledgement time as a percentage of total cycle time in X-MAC Protocol in 802.15.4
I am working on an analytic model for X-MAC, I came across some important duration and I am confused how to select them.
cycle_length = one complete cycle (per transmission) in ms
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205 views
What is a good rule of thumb for practical minimum design duty cycle for a PWM DC motor controller?
I am designing a drive that outputs an RPM of about ~350, with output torque of about ~10 mNm. I found a cheap motor that provides this torque (plus more for insurance), but the speed at rated voltage ...
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212 views
Regulate DC-Pump throughput
Does anybody know whether it is possible to easily regulate the throughput of a DC water pump? E.g. one you would use for your pond or indoor fountain.
I would like to avoid lowering the duty cycle ...
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274 views
How might I wire a split pi converter to transistors as to maximize output voltage?
I was looking into various dc-dc converter designs, and I was interested in the split pi converter.
As a start, I just want to maximize the output voltage. I know in theory, the output voltage could ...
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314 views
Measuring cpu load of interrupt routine
I have an isr that is updating a display at a fixed frequency. I would like to tune my routine to minimize overhead and keep as much cpu time as possible open for other processing, but I don't have ...
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1answer
408 views
Diode IFSM to duty cycle extrapolation?
I have a diode. It has a forward current rating of 40 mA. It has a surge current rating of 100 mA for t <= 10 usec. There is no mention of a duty cycle in the datasheet.
Is there a rule of ...
