Capacitor on Bald Engineerhttps://www.baldengineer.com/tag/capacitorRecent content in Capacitor on Bald EngineerHugoen-USThu, 31 Mar 2022 02:42:52 +0000Measuring ESR with the PEAK ESR70 | Workbench Wednesdays Reviewhttps://www.baldengineer.com/esr70-measures-esr.htmlWed, 26 Jun 2019 14:50:45 +0000https://www.baldengineer.com/?post_type=link&p=7877There are three capacitor measurements you need to know how to make: capacitance, leakage current, and equivalent series resistance. Capacitance is easy to measure if you have a current limited supply or can use a resistor. Apply a voltage, then time how long it takes to charge up. You might need to use an oscilloscope or even an Arduino for the second part. Leakage current is the easiest of the three, apply a voltage (ideally through a resistor) for a few minutes, and then measure the current. ESR requires some special tricks. Since it is the resistance of the “wires” connecting to the capacitive element’s anode and code, you have to measure resistance without charging up the capacitor. (Otherwise, you get leakage.)

Measuring ESR with the PEAK ESR70 | Workbench Wednesdays Review

Surface Mount Rework Tools | Workbench Wednesdayshttps://www.baldengineer.com/surface-mount-rework-tools-workbench-wednesdays.htmlThu, 28 Mar 2019 03:21:42 +0000https://www.baldengineer.com/?post_type=link&p=7709In this element14 Workbench Wednesdays episode, I review tools provided by Weller which are suitable for surface mount soldering. Throughout the soldering series, I have been using mini-projects to see how the gear works. Making this particular video was special to me. The subject was a TI-85. Back when I was a kid, one of my first soldering projects was to replace a capacitor in the TI-85. At the time, all I knew is that the change would make it run faster. I didn’t know why I just knew it worked.

Surface Mount Rework Tools | Workbench Wednesdays

Resonant Frequency Calculatorhttps://www.baldengineer.com/resonant-frequency-calculator.htmlFri, 05 Oct 2012 09:06:40 +0000https://www.baldengineer.com/?p=1138When working with components like capacitors and inductors it is always helpful to know how to calculate a resonant frequency. This Resonant Frequency Calculator is an excellent resource because it allows for calculating for Frequency, Inductance, or Capacitance. Sometimes plugging in what you know is faster than working through some algebra. Check out the: Resonant Frequency Calculator.

Resonant Frequency Calculator