resistance

8
! !" # ! Ω $% # &’ × = # ( & ) " Ω. # & $" $*

Upload: edidjo-darwin

Post on 04-Dec-2015

212 views

Category:

Documents


0 download

DESCRIPTION

les résistances

TRANSCRIPT

!

!"

# !Ω

$ % #&' ×= # (&

)" Ω.

#

&

$ "

$*

%*

' '%

+ '

, '

-!

.'/012%

.'/01

'

) /

×=

$03 %

'

-

45Ω%03+.'/01

( /- '

4-!

!

) & *

'

6

= &78.'9)

"%*

6 ×= / ×= 7.'891

%.'891

!ΩΩΩΩ!"#

/+-!

!

= &74:) ** $,

*%/.)

"%*

/ ×= 7.'4:1 $!ΩΩΩΩ!"# "

#74/(

&78.)

";

";#74/(

$,

&7/.)

#$,74'0(

$ "

$,'# $,

%/.)'

$ !

+×=

= 6

"70/0Ω "709.Ω'

&"

< =#& "'

×=

6

= "7>..Ω

>..Ω

-"78?.Ω'

, % %*

, -

×=+

= >4'.88>9

88#74/(#7>'?0(

$ / /4

+= '

#74/(740.)

%%&

# * @

#+ "/'2%@A4..-"/

# +

+

U

R1=47KΩΩΩΩ

R2=33KΩ Ω Ω Ω US

/4

/

+

×=

@

#

#

$B C A4DΩ' E F% % (

*G 4.'

*H* '

)* G +

( '

C&

//..Ω4.5Ω.

'

( )

D C

R1 R2 R3 R4 R >8/4

44444

+++=

R1 R2 R3 R4 R >8/4 +++=

, #

$ *

+

!

!

$ +* %

*% ("'$

+*

.Ω'<

*'

( %

< - !

%** *!

%** *!

'

U

R Tension de seuil

R (ΩΩΩΩ) R (ΩΩΩΩ)

ΘΘΘΘ (°C) θθθθ (°C)

Coefficient positif Coefficient négatif

("

$ '

**' *

'

,

" D+

Ω