PWM Controller

Output duty cycle controlled with variable resistor connected to terminals.

External adjustment (variable resistor) control

Variable resistor

DC power supply

PWM signal

Variable resistor

DC power supply

PWM signal

(%)

20

40

60

80

4

0

3

1

2

5

100

9

8

6

7

10

Resistance

(k )

Resistance -

Output Duty Cycle Characteristics

Recommended total resistance: 10 k

Resistance taper: B (linear curve tting)

Output duty cycle controlled with the adjustment knob.

Internal adjustment (variable resistor) control

Output duty cycle controlled

with the adjustment knob (on the inner scale)

DC power supply

PWM signal

(%)

(%)

25

50

0

25

50

100

75

100

75

Inner scale reading with adjustment knob

Inner Scale Reading -

Output Duty Cycle Characteristics