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Oh, I'm sorry. I found the charging voltage range 1.4V to 1.6V in Wikipedia in reference to Panasonic NiMH manual and handbook. But upon checking the handbook, it did not mention specifically about the charging voltage. The chart shows the battery voltage when it is charging at specific state of...
Thanks BradtheRad, yeah I agree regarding the drop in battery voltage when the battery is taken off charge. Currently, I am trying to observe the characteristic of the battery by using a power supply to charge the battery. The upper limit current is set to 100mA and charging voltage is set to...
Thank you Klaus.
Yes I already searched it in the internet many times and all I was able to find regarding the charging voltage with given values is from Wikipedia which states that "Charging voltage is in the range of 1.4–1.6 V per cell." I also checked the reference of this data which is from...
Hello everyone. I am designing an energy harvesting system using indoor light as my source and a rechargeable 1.2V NiMH battery as my storage element. I would like to ask, what should be the range of my charging voltage for the 1.2V NiMH battery? Thank you so much.
I am designing an energy harvesting system with ring oscillator, non-overlapping clock, and tapered buffer. Shown below is the the clock results and tapered buffer results of the three corners TT, FF, and SS. I was just wondering what causes the poor peak voltages of the tapered buffer results...
Thanks for the response everyone. Now I understand that the linearity mentioned here is about the linear relationship of the control voltage and resultant frequency of the ring oscillator. Thanks for the help. :)
Hello all. I just want to ask the significance or meaning of the phrase "good linearity" or "great linearity" as an advantage for the design of a ring oscillator. I am reading a paper about a bootstrapped ring oscillator and it says that "the proposed ring oscillator provides great linearity...
Here's the paper I am referring to. ---->https://sci-hub.tw/10.1109/ISMS.2016.59
It is stated in the abstract of this paper that:
"The optimized rectifier achieves 83.3 % power conversion efficiency (PCE) at -16.3 dBm input power, with an input RF of 953 MHz and 0.6 V peak sinusoidal signal...
I have read a paper that states, "The optimized rectifier achieves 83.3 % power conversion efficiency (PCE) at -16.3 dBm input power, with an input RF of 953 MHz and 0.6 V peak sinusoidal signal." My question is, how did he get the value 0.6 V peak from the given input power of -16.3dBm?
I...
Hello all!
I wanna ask some help regarding the input signal of our Wi-Fi energy harvester. We are targeting to use both the 2.4GHz and 5GHz frequency, one at a time. This signal will be the input of our rectifier. My question is how are we going to generate the harvested input from the Wi-Fi...
I am currently working on the design of a differential-drive rectifier circuit which will be used to re-charge a NiMH rechargeable battery (button cell) particularly V150H of Varta battery.
Battery specifications...
Good day, all!
I am currently working on an RF energy harvesting system targeting the harvest of free energy from WiFi of frequency 2.4GHz and 5GHz as a project in our university. I am more familiar with doing an indoor light energy harvesting system rather than an RF energy harvester in which...
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