Mini UPS 500mA/2-3sec

Do you have a question? Post it now! No Registration Necessary

Translate This Thread From French to

Threaded View
Bonjour,




sauvegardes sans soucis.






soleil (accus sensibles ?).

franssoa

Re: Mini UPS 500mA/2-3sec
Quoted text here. Click to load it



Quoted text here. Click to load it


Si oui, alors sa consommation est certainement beaucoup plus

fournie par un condensateur. Dans ce cas il suffit juste d'une

  


Re: Mini UPS 500mA/2-3sec

Quoted text here. Click to load it


Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it


super condensateur -> step up vers 3.3v ? Mais je n'y connais rien en  
super condo, et je surfe sur le net pour en apprendre un peu plus :-)

franssoa

Re: Mini UPS 500mA/2-3sec
Quoted text here. Click to load it



Quoted text here. Click to load it



Quoted text here. Click to load it



J'ai la flemme de me taper la doc ... l'ESP8266 est un Tx wireless,
est-ce que ta 'sauvegarde' s'effectue par une transmission HF ?





Autant utiliser directement un condo qui supporte ces 3,3V par exemple :
http://tinyurl.com/lwgvgmc
  


Re: Mini UPS 500mA/2-3sec

Quoted text here. Click to load it



Quoted text here. Click to load it

Quoted text here. Click to load it


Quoted text here. Click to load it



L'ESP8266 et un Tx Wifi + un microcontrolleur, que l'on trouve sur un  










suivi de conso...

Quoted text here. Click to load it

Quoted text here. Click to load it


franssoa

Re: Mini UPS 500mA/2-3sec
Quoted text here. Click to load it















Quoted text here. Click to load it



  


Re: Mini UPS 500mA/2-3sec

Quoted text here. Click to load it






Quoted text here. Click to load it







suppose (mais je n'ai pas encore pu tester) que l'on peut couper le wifi  
avant et donc faire chuter d'autant la conso.

franssoa

Re: Mini UPS 500mA/2-3sec




Quoted text here. Click to load it


http://123d.circuits.io/circuits/667242-micro-ups-for-memory-backup




tension critique.



franssoa

Re: Mini UPS 500mA/2-3sec





Quoted text here. Click to load it


Quoted text here. Click to load it



Quoted text here. Click to load it

Quoted text here. Click to load it
Faite des calculs votre montage n'accepte aucune chute de tension du condo.



du genre:
http://www.ebay.fr/itm/1pc-DC-DC-3A-Buck-Converter-Adjustable-Step-Down-Power-Supply-Module-LM2596-IDXX-/281634292132?pt=LH_DefaultDomain_71&hash=item4192b641a4
Avec se montage vous pouvez accepter une chute de tension d'une dizaine  
de volts.

Des calculs:
3,3V et 0,5 A pendant 2s =>3,3 joules.

Si U10%V => condo=3.3*2/100=>66mF

Re: Mini UPS 500mA/2-3sec
Quoted text here. Click to load it

Quoted text here. Click to load it













Ca se tient.




le contact, et qu'il est temps de couper le wifi et faire un backup ?


  


Re: Mini UPS 500mA/2-3sec

Quoted text here. Click to load it


Quoted text here. Click to load it


Quoted text here. Click to load it


Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it


Quoted text here. Click to load it

Je doute:
Au hasard si lm3940
Input Voltage Range: 4.5V to 5.5 V
http://www.ti.com/lit/ds/symlink/lm3940.pdf

Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it


Quoted text here. Click to load it


Re: Mini UPS 500mA/2-3sec




Quoted text here. Click to load it


Quoted text here. Click to load it


Quoted text here. Click to load it

Quoted text here. Click to load it







http://www.ebay.com/itm/171724112380




Quoted text here. Click to load it

AMS1117-3.3 : 0 ? I OUT ? 1A , 4.75V ? V IN ? 12V

Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it



OK, j'aurais pu voir.

franssoa

Re: Mini UPS 500mA/2-3sec





Quoted text here. Click to load it


Quoted text here. Click to load it


Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it






Quoted text here. Click to load it

Quoted text here. Click to load it




obtenir du 5.5V pour pouvoir utiliser votre supercapa.



http://123d.circuits.io/circuits/667242-micro-ups-for-memory-backup




Re: Mini UPS 500mA/2-3sec






Quoted text here. Click to load it


Quoted text here. Click to load it





Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it





que les condos ne tirent trop sur l'alim qui les chargent.


Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it


naturellement...

Quoted text here. Click to load it

Quoted text here. Click to load it



coupure du contact.

Re: Mini UPS 500mA/2-3sec







Quoted text here. Click to load it


Quoted text here. Click to load it




Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it





Quoted text here. Click to load it







Input voltage: 0.9-5V DC MAIS ICI 5V en sortie
http://www.ebay.fr/itm/Mini-PFM-Controle-DC-DC-0-9V-5V-USB-5V-DC-Boost-Step-up-Power-Supply-Module-/361021579471?pt=FR_YO_MaisonJardin_Bricolage_ElectroniqueComposants&hash=item540e9020cf
@+


Re: Mini UPS 500mA/2-3sec





Quoted text here. Click to load it
du genre
http://www.aliexpress.com/item/USB-Solar-Step-up-Boost-Adjustable-Power-Supply-Module-2PCS/598339466.html


Re: Mini UPS 500mA/2-3sec


Quoted text here. Click to load it



Quoted text here. Click to load it





tester pour le savoir.

Re: Mini UPS 500mA/2-3sec



Quoted text here. Click to load it



Quoted text here. Click to load it





Quoted text here. Click to load it



charge sur les deux condo maintenant.

Re: Mini UPS 500mA/2-3sec




Quoted text here. Click to load it



Quoted text here. Click to load it





Quoted text here. Click to load it



Quoted text here. Click to load it
Faite des calculs mais un  seul condo de 5V et 1 Farad
A la louche
Energie => 1/2*1*3*3= 9 W.s donc largement suffisant pour votre application

Re: Mini UPS 500mA/2-3sec



Quoted text here. Click to load it



Quoted text here. Click to load it




Quoted text here. Click to load it

d'une alimentation "Step-up Boost".

http://www.chireux.fr/mp/cours/electronique/Chap4.pdf



Site Timeline