CA3059

Manufacturer Part NumberCA3059
DescriptionZERO VOLTAGE CROSSING SWITCH
ManufacturerIntersil
CA3059 datasheet
 


Specifications of CA3059

Rohs StatusRoHS non-compliant  
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50K
5W
5
R
P
2
SET
TEMP
14
100 F
CA3059
13
NTC
THERM-
8
ISTOR
7
120V
AC
1
9
60Hz
68K
1/2 W
TYPE
2N6975
FIGURE 12. CA3059 ON/OFF CONTROLLER WITH CON-
10K
8
1
10K
7
SENSOR
0.001 F
10K
“HIGH”
REFERENCE
7
DIFF.
(HR)
AMPL.
SIGNAL
8
INPUT
DIFF.
“LOW”
AMPL.
1
REFERENCE
(LR)
Application Note 6182
R
For applications that require complete elimination of half
L
cycling without the addition of hysteresis, the circuit shown in
3
12
6
Figure 13 may be employed. This circuit uses a CA3098E
integrated circuit programmable comparator with a zero-
MT
2
voltage switch. A block diagram of CA3098E is shown in
4
Figure 14. Because the CA3098E contains an integral
flip-flop, its output will be in either a “0” or “1” state.
G
MT
1
Consequently the zero-voltage switch cannot operate in the
linear mode, and spurious half cycling operation is
10
11
1N914
prevented. When the signal input voltage at terminal 8 of the
CA3098E is equal to or less than the “low” reference voltage
68K
1/2 W
(LR), current flows from the power supply through resistor R
SET
and R
, and a logic “0” is applied to terminal 13 of the
HYSTERESIS
MAX
2
zero-voltage switch. This condition turns off the triac. The
CW
1K , 1W
triac remains off until the signal input voltage rises to or
MIN
DELAYED
Q
OUTPUT
1
exceeds the “high” reference voltage (HR), thereby effecting
a change in the state of the flip-flop so that a logic “1” is
560
39K
1/2W
1/2 W
10 F
-
6
5
R
CA3098
3
47
R
2
4
15K
2
100 F
-
+
2
3
62K
9
10
11
FIGURE 13. SENSITIVE TEMPERATURE CONTROL
PROGRAMMABLE BIAS
2
CURRENT INPUT (I
FLIP-FLOP
SUMMER
(MEMORY)
CA3098E
COMPARATOR
7
TROLLED HYSTERESIS
5K
120V
LOAD
1
4W
60Hz
13
MT
2
5
4
CA3059
MT
1
G
8
7
6 V+
OUTPUT
)
BIAS
CURRENT
CONTROL
5
“SINK”
OUTPUT
DRIVER
OUTPUT
3
SUBSTRATE
4 V-
1