| Electronics > Beginners |
| Searching for a component that increases resistance with voltage |
| << < (3/4) > >> |
| grifftech:
incandecent lamp |
| ArthurDent:
Technically a relay that pulls in at the voltage of interest and disconnects the load across a set of N.C. contacts would work. The problem is this trip point is probably a little broad and finding a relay to match the criteria will not be easy. A series resistor, which adds a second component, could adjust it somewhat . Once the relay pulls in it will hold until the input voltage drops to a much lower value so you'd have hysteresis. |
| FriedMule:
First, I am a noob so please bare with me but there is an optocoupler that do the exactly opposite of what you want, but maybe you could get the optocoupler to control a digital potentymeter? opamp here: https://www.onsemi.com/pub/Collateral/H11F3M-D.pdf |
| soldar:
--- Quote from: grifftech on August 30, 2019, 03:54:13 pm ---incandecent lamp --- End quote --- Indecent lamp can. :) |
| Kilrah:
Until it pops :) |
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