could you charge a capacitor with a hall voltage - Page 1
Forum section: electronics / beginners

author: robowaffe
author_rank: Regular Contributor
timestamp: July 18, 2023, 04:00:15 pm
content: Its only a tiny amount going into the capacitor.U could ideally, but would capacitors leak more than the hall voltage going into them - so it has no effect?

author: tggzzz
author_rank: Super Contributor
timestamp: July 19, 2023, 03:46:45 pm
content: Quote from: robowaffe on July 18, 2023, 04:00:15 pmBefore anyone bothers to reply, consider another of his replies in a thread where he is the OPQuote from: robowaffe on July 19, 2023, 03:37:28 pm

author: Gyro
author_rank: Super Contributor
timestamp: July 19, 2023, 04:14:57 pm
content: This guy sounds familiar, wasn't it something to do with resistors or capacitors with gain?EDIT: Capernicus?

author: TimFox
author_rank: Super Contributor
timestamp: July 19, 2023, 04:22:37 pm
content: And what would a leakage voltage be?What type of capacitor is used in the experiment?Electrolytic, vacuum, mica, polypropylene?"Was ist Überfluss des Herzens für ein Ding?" -- Martin Luther, 1530

author: Terry Bites
author_rank: Super Contributor
timestamp: July 19, 2023, 04:55:18 pm
content: The hall voltage is a charge held in the semiconductor crystal, its already a capacitor!

author: TimFox
author_rank: Super Contributor
timestamp: July 19, 2023, 05:35:26 pm
content: You can get a Hall-effect voltage in a polycrystalline or amorphous metallic conductor: under the influence of an external magnetic field applied perpendicular to the direction of the current flow, there will be a force on the charge carriers perpendicular to both vectorsBandJthat is measurable as a potential difference between two contacts "left and right" of the current direction on the appropriate edge of the conductor.

author: eugene
author_rank: Frequent Contributor
timestamp: July 19, 2023, 07:06:18 pm
content: Quote from: robowaffe on July 18, 2023, 04:00:15 pmWhy not try it and see what happens? Assuming you have a Hall sensor, a capacitor, and a DMM it should be a pretty easy experiment.

author: Gyro
author_rank: Super Contributor
timestamp: July 19, 2023, 07:24:46 pm
content: All you need to know!...https://www.eevblog.com/forum/beginners/rusting-diodes-on-your-pcb/

author: BillyO
author_rank: Super Contributor
timestamp: July 20, 2023, 08:21:06 pm
content: I vote for the banning of robowaffe.

author: DavidAlfa
author_rank: Super Contributor
timestamp: July 20, 2023, 08:28:23 pm
content: Not a problem with magneto-resistive Schottky caps, but Fet-A-Nyle hall sensors are much better.

author: TimFox
author_rank: Super Contributor
timestamp: July 20, 2023, 08:41:32 pm
content: In real life, a Hall-effect sensor connected to an external capacitor, with magnetic field and current applied in the normal fashion, will charge up the capacitor until the voltage across the terminals counteracts the Hall voltage.In college physics lab, we measured the Hall effect by using a potentiometer and galvanometer to cancel the Hall voltage.(A nice thing about the Hall effect is that it allows one to determine the polarity of the charge carriers in the sample: negative for normal metals, positive for holes in doped semiconductors.)