|
|
|||||||
| Daily banter For everything, and anything that doesnt fit in elsewhere |
|
|
Thread Tools | Display Modes |
|
#34
27th April 2016, 01:03 PM
|
||||
|
||||
A latching relay is a good idea.
You can actually make most regular relays latch simply by using the relay to power itself through it's own contacts. Unlatching is a little more complicated this way if you need a toggle action since you need to break the latch circuit somehow. However it will unlatch, and remain unlatched by default, when powered off.  You can also buy relays with a mechanical latch mechanism, which usually employ permanent magnets. They have the advantage that they require no hold-current but they're pretty rare: https://en.wikipedia.org/wiki/Relay#Latching_relay
__________________
Mark ------------------------------------------------------ 2002 FE S8 Ebony Black Pearl ------------------------------------------------------  ------------------------------------------------------ Cars Owned: The Tesla Era: 2020 Model S Performance Ludicrous+ (present) (Black, with all black premium interior and carbon fibre décor, 21" sonic carbon twin turbine wheels and FSD capability) The Audi Era: '97 A8 4.2 (Ming Blue) --> '96 A8 4.2 QS (Dark Green) --> '02 FE S8 (present) The Citroen Era: '84 BX 1.6 RS --> '89 BX 1.9 DTR Turbo --> '94 XM 2.0L Turbo --> '96 XM 2.0L Turbo Exclusive --> '00 Xantia Activa 2.0L Turbo The Banger Era: '76 1.2L Lada VAZ-2101 (Ruski Fiat 124) --> '80 1.7L Morris Ital HL, finished in Ermine White and Rust 
|
|
|
Threaded Mode