CLM7660

CORPORATION

FIGURE 11. POSITIVE VOLTAGE CONVERSION

1

2

3

8

7

6

45

CLM7660

1

C

10

µF

+

+

10

µF

–

V

INPUT

1M

Ω

OUT

V

= –V

–

1J-50

FIGURE 13A. FIXED POWER SUPPLY OPERATION

OF CLM7106 A-D

+

V

1K-02

31

30

32

35

36

LCD

DRIVE

(–5V)

1

10

mF

CLM7660

2

4

5

3

+

26

10

mF

+

IN

V

+

V

IN LO

IN HI

COM

REF LO

REF IN

CLM7106

3-1/2 DIGIT

A-D

+5V

CA1004

8

FIGURE 12. SPLITTING A SUPPLY IN HALF

1

2

3

8

7

6

45

CLM7660

1K-01

50

µF

+

+

50

µF

50

µF

+

L1

R

L2

R

1M

Ω

+

V

OUT

V=

2

+

V

–

– V

–

V

100k

Ω

100k

Ω

FIGURE 13B. NEGATIVE POWER SUPPLY GENERATION FOR 3 1/2 DIGIT A-D

1K-03

31

30

32

35

36

LED

DRIVE

1

21

IN

V

IN LO

IN HI

COM

REF LO

REF IN

+5V

COMMON ANODE

LED DISPLAY

GND

35

4

2

CLM7660

8

+

V

+

26

–

V

+

CLM7107A

3-1/2 DIGIT

A-D