S1T2418G01/D02
TONE RINGER WITH BRIDGE DIODE
APPLICATION CIRCUIT
R3
224
1uF, 250Vac
2.2K
R2
TIP
C2
10K
10K
8
6
5
S1T2418G01
KA2418B/28
7
S1T2418D02
Piezo
Vout
+
C3
10uF
1
2
3
4
1300W : 8W
RING
R1
12K
C1
100nF
Vs
3.22 ´ 104
R1(K)
5
7
1000
fH1 = ---------------------------- fH2 = --- × f1
fS = --------------------
C1(nF )
Device
S1T2418G01
S1T2418D02
Function
3.22 ´ 10 4
R1 (K)
2.66 ´ 104
R1(K)
f
H1
----------------------------
----------------------------
f
f
(R1 = 14kW)
(R1 = 14kW)
2300 + 300 (Hz)
1900 + 100 (Hz)
H1
H2
1700 + 300 (Hz)
1300 + 100 (Hz)
4