Questions tagged [esr]

ESR is the "equivalent series resistance" of an electrical component (such as a capacitor or inductor) arising from non-idealities that are always present in the materials used in their construction.

9 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
2
votes
0answers
44 views

Supercapacitor as PMIC Storage Element

I'm currently trying to design a system that incorporates an ADP5092 which can use a supercapacitor as the storage element but I am also considering other similar PMIC chips so this is more for ...
2
votes
0answers
46 views

Strange Behaviour of Lipo Battery ESR during charging

I performed three charge tests on a single cell 190mAh Li-Po battery with Keithley Battery Simulator instrument. Charging started at 3V and stopped at 4.20V in all tests. After completing the three ...
1
vote
1answer
63 views

Capacitor ESR Calculation

I'm trying to perform esr calculations of this capacitor(1uF): https://alconelectronics.com/wp-content/uploads/2020/06/KP-6-JUNE-2019.pdf to do that I need to know dissipation factor and at the bottom ...
1
vote
1answer
104 views

State Space Average Model of Non-Ideal Buck Converter

I've been learning power electronics and am trying to design a dual-switch forward converter. One of the things I've been trying to do is derive the small-signal equivalent circuit of the non-ideal ...
1
vote
0answers
94 views

How to convert Ripple Current spec to ESR?

It used to be that vendors like Digikey gave a cap's ESR value and not ripple current. Nowadays, it seems more report only ripple current and not ESR. What gives with that? So what are we supposed to ...
1
vote
0answers
358 views

Supercapacitor ESR

I am trying to automate a method of testing the ESR of many super capacitors simultaneously. I have read that a good method of measuring the ESR of capacitors is to apply a square wave across the cap ...
0
votes
0answers
120 views

1117 voltage regularo ceramic caps

I have made a mistake and I do not have the space on my PCB to add two serial resistors. Is it OK to use only one for two caps? Simulation looks OK but it only the simulation
0
votes
0answers
110 views

Can a capacitor have high series resistance and low Q and why?

I measured with an LRC meter (Agilent 1731A) a capacitor at frequency \$1kHz\$, finding \$C=109.4 n F\$. Then I tried to measure the resistance and quality factor of the capacitor: here is what I got....
0
votes
0answers
279 views

Is the “dc impedance” and ESR the same thing?

In a super-capacitor, what is the DC Impedance? Is it the same as ESR (Equivalent Series Resistance)?