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http://simplement.skoda.free.fr. C1 = 10 micF C2 = 100 micF R1 = 1kh 1% R2 = 1kh 1% P1 = 1kh R3 = 2.2h / 9W R4 = 2.2h / 9W. Présence clignos ou/et veilleuses. Masse. Relai au repos. Lt1083cp. R3. 3A. 12V. In. out. R4. Adj. C1. + -. C2. + -. R2. 3,3v. R1. 350mA

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slide1

http://simplement.skoda.free.fr

C1 = 10 micF

C2 = 100 micF

R1 = 1kh 1%

R2 = 1kh 1%

P1 = 1kh

R3 = 2.2h / 9W

R4 = 2.2h / 9W

Présence

clignos ou/et

veilleuses

Masse

Relai au repos

Lt1083cp

R3

3A

12V

In

out

R4

Adj

C1

+

-

C2

+

-

R2

3,3v

R1

350mA

par diode

P1

Masse

slide2

http://simplement.skoda.free.fr

C1 = 10 micF

C2 = 100 micF

R1 = 1kh 1%

R2 = 1kh 1%

P1 = 2.2kh

R3 = 0.33h / 9W

R4 = 1.5h / 9W

Régler P1 pour avoir 4,3v en sortie du régulateur,

ou 3,3v après R3 (relai au repos) tension nominale

de fonctionnement des Leds

R4 a été choisie

pour ½ puissance

des Leds

Présence

clignos ou/et

veilleuses

Masse

Vout= 1.25 (1+(R1+P))

Regu

R2

Relai présenté au repos

LT1083CP

7A max

3A

12V

In

Vout

R3

R4

Adj

Led

1w

6500k

C1

+

-

C2

+

-

R2

4,3v

*3,3v

R1

350mA

par diode

P1

Masse

* Relais au repos