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Re: Latching Relay Drivers
No, that's bistable. -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, ?a critter that can be killed but can't be tamed.
By Roy J. Tellason, Sr. · #99282 ·
Re: aliexpress freq counters views
well i orderd one along with some esp32 blue pill boards to make a coil winder with,will see when they get here,aliexpress say delivery should be on dec 5th.
By paul larner · #99281 ·
Re: Light from semiconductor junctions
i have had a few glass diodes light up briefly in the past when overloading them,does that count?.
By paul larner · #99280 ·
my new psu
Hi all, I have just brought this psu, https://www.ebay.co.uk/itm/186801000648 its o-30v 0-1a,its made of discrete components with no ic's, its transfo has a center tap then +50v,+40v/-50v+-40v taps
By paul larner · #99279 ·
Added photo album my psu #photo-notice
paul larner <quadzillatech@...> added the photo album my psu ( /g/electronics101/album?id=299190 ) : my psu pics
By Group Notification <noreply@...> · #99278 ·
Re: Latching Relay Drivers
A point that I didn't address in my earlier reply. You've gotta do *something* with those set and reset pins. A power on reset signal would probably be a good thing to add to your design. That can
By Roy J. Tellason, Sr. · #99277 ·
Re: Latching Relay Drivers
I can see how easy it would be to make a relay latch, but how would you get it to release? -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this
By Roy J. Tellason, Sr. · #99276 ·
Re: Latching Relay Drivers
That's why he specified "debounced"... -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, ?a critter that can be killed but
By Roy J. Tellason, Sr. · #99275 ·
Re: Latching Relay Drivers
That'll work, also a Type D FF, if you tie the D input to the Not-Q output. Whether high input will trigger it or not depends on the part, they can work either way, check the datasheet (have a
By Roy J. Tellason, Sr. · #99274 ·
Re: Slow cycling LED 'flasher' for model trains
On Friday 29 November 2024 07:35:28 pm wn4isx via groups.io wrote: > We've had several requests over the last few years for LED flashers for model train enthusiasts. One problem with most LED flashers
By Roy J. Tellason, Sr. · #99273 ·
Re: Light from semiconductor junctions
On Friday 29 November 2024 07:24:12 pm wn4isx via groups.io wrote: > This will be my last post on non-LED semiconductors emitting light. > > First, all of the forward biased semiconductors I tested
By Roy J. Tellason, Sr. · #99272 ·
Re: Latching Relay Drivers
It's sounds like you're trying for an electronic solution to a simple series of 16 "pulse ON, pulse OFF" latching relays? Where a relay is turned on with an "ON" pulse, then stays ON until it receives
By Terry · #99271 ·
Re: Latching Relay Drivers
I guess these are electronic latching circuits for driving a relay - not physical latching relays.? You can get latching relays that use no electronics.? I never used one. You are correct.? JK
By Andy · #99270 ·
Re: Latching Relay Drivers
It is not what you asked for, but if your relay has extra contacts you can wire it up to be latching and releasing with a separate line. Bertho
By Bertho · #99269 ·
Re: Latching Relay Drivers
So not SET and RESET lines but a single TOGGLE line? That is tricky since you may get ringing or noise on the line. Use separate lines if possible. Everything else, USN2308 etc, sounds
By Bob Smith · #99268 ·
Latching Relay Drivers
Been playing with various chinese-originated latching relay solutions from Amazon. Most are 'overly optimistic' about capabilities. Very 'overly optimistic'. Otherwise the rest have issues operating
By SheldonD · #99267 ·
Slow cycling LED 'flasher' for model trains
We've had several requests over the last few years for LED flashers for model train enthusiasts. One problem with most LED flashers is the go from full off to full on whereas old style caboose, water
By wn4isx <wn4isx@...> · #99266 ·
Light from semiconductor junctions
This will be my last post on non-LED semiconductors emitting light. First, all of the forward biased semiconductors I tested emitted light. The glass cased silicon diodes were the easiest to verify,
By wn4isx <wn4isx@...> · #99265 ·
Re: aliexpress freq counters views
Something to think about..... -------------------------------------------- Practices of Science: Precision vs.
By wn4isx <wn4isx@...> · #99264 ·
Re: aliexpress freq counters views
Sometimes having lots of digits can be helpful, even when it does not mean precision accuracy.? Then it is up to the user of the instrument to interpret it correctly. For example, when making