AN3432

Photocurrent production basics of silicon solar cells

Doc ID 019041 Rev 1

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Figure 4.

Hot spot phenomenon

There is no risk of hot spot while:

Equation 7

To eliminate the hot spot phenomenon, a dedicated circuit should bypass the partially

shaded module and eventually it should maintain the operation of the other PV modules

creating a path for their current.

V

cell

I(V)

V G

-Vs

R Load

1000W/m²

Voltage (V)

-Vs

Shadowed cell

characteristics

I(V)

V G

(n-1) V oc_u

(n-1) illuminated

cell characteristics

-Vc

Hot spot

0

)

(

·

·

·

)

(

)

(

V

I

V

P

V

I

V

P

V

I

R

V

V

c

c

s

s

Load

s

G

=

=

=

-

c

s

P

P

<