tea1124 ETC-unknow, tea1124 Datasheet - Page 3

• Manufacturer Part Number: tea1124
• Description: Zero Voltage Switch With Fixed Ramp
• Manufacturer: ETC-unknow

TELEFUNKEN Semiconductors
Rev. A1, 24-May-96
Period
1. The time required for one complete cycle of a regular.
2. The tune between two consecutive transients of the
Comparator
The comparison of set value and measured value is
carried out via the two comparator inputs Pin 1 and Pin 2.
Here Pin 2 is the inverting input and has a circuit pro-
tecting it against interference spikes. Figure 5 shows the
protective circuit of the comparator. Pin 1 is the non-
inverting input.
repeating signal, function, or series of emends.
pointer or indicating means of an electrical indicating
instrument in the same disdain the rest position.
Something called periodic fine.
GND
1
6
2
Figure 5. Protective circuit of the comparator
Z
GND
–V
R
R
x
y
S
2
6
1
4
150 k
T
50 k
R
W
W
Figure 4. Principle diagram – Generation and evaluation of ramp
Protection
+
generator
–
Current sink
D/A converter
Ramp
95 11412
A
+
D
–
ripple counter
4 stage
2
2
2
2
3
2
1
0
Firing Pulse Width (Figures 6, 7)
It depends on the latching current as well as on the load
current of the used triacs.
t
Firing pulse width is specified through the zero cross over
identification which can be influenced by the sync.
resistance.
R
where
t
whereas I
p
p
(40 ms)
sync
[s]
Period
20 ms
[s] = required ignition pulse width
TEA1024/ TEA1124
+
[
W
]
4
V
P W = Power load
f 1/s = Mains frequency
+
L
3
Divider
p
M
(1:4)
A = Latching current of the triac
1:2
V
f
V = Mains voltage, effective
M
arcsin
2 sin
I
2.5
L
P
2
3
95 11411
V
w
10
M
2
7
–5
Sync (50 Hz)
t
p
– 0.6
–1.4
3 (8)
10
3