IC Modeling

Device Modeling of OVPUsing PSpice

13OCT2014Bee Technologies IncTsuyoshi Horigome

OVP(Over Voltage Protection)VOUT端子電圧を監視し、 OVP電圧に達すると発振を停止する回路です。

Equivalent Circuit

IN+IN-

OUT+OUT-

E 1

if (V (O V P _ I N P U T_ P , O V P _ I N P U T_ M )>0 . 0 1 , 5 , 0 )E V A L U E

R 1

1 0

R 21 0 0 M E G

R 31 0 0 M E G

C 11 0 p

V 11 9 V d c

V 2

TD = 0

TF = 1 0 uP W = 1 0 nP E R = 2 0 . 0 1 u

V 1 = 0

TR = 1 0 u

V 2 = 2 5O V P _ I N P U T_ M

O V P _ I N P U T_ P

O V P _ O U TP U T

0

0

0 0 0

0

OVP

V

V

V

Simulation

Input

Output