av2030 AVIC, av2030 Datasheet - Page 12

• Manufacturer Part Number: av2030
• Description: Linear Integrated Circuit
• Manufacturer: AVIC

@vic
variations with and without load. The UTC2030(Vsmax=44V) is particularly suitable for substitution of the standard
IC power amplifiers(with Vsmax=36V) for more reliable applications.
An example, using a simple full-wave rectifier followed by a capacitor filter, is shown in the table and in the diagram
of Fig.27.
taking into account the power to supply in signal peaks. They are not only a small percentage of the total music
signal, with consequently large overdimensioning of the circuit.
Even if with a regulated supply higher output power can be obtained(Vs is constant in all working conditions),the
additional cost and power dissipation do not usually justify its use. using non-regulated supplies, there are fewer
designee restriction. In fact, when signal peaks are present, the capacitor filter acts as a flywheel supplying the
required energy.
in case than for the case of regulated supplied, with space saving and cost reduction.

It is essential to take into account all the working conditions, in particular mains fluctuations and supply voltage
A regulated supply is not usually used for the power output stages because of its dimensioning must be done
In average conditions, the continuous power supplied is lower. The music power/continuous power ratio is greater
Mains(220V)
AV2030
+20%
+15%
+10%
-10%
-15%
-20%
ü
Vo(V)
36
34
32
30
28
0
0.4
Secondary Voltage
0.8
28.8V
27.6V
26.4V
21.6V
20.4V
19.2V
24V
1.2
1.6
Ripple
LINEAR INTEGRATED CIRCUIT
Vout
2.0
Io(A)
Fig.27 DC characteristics of
50W non-regulated supply
36.2V
32.4V
30.6V
28.8V
43.2V
41.4V
39.6V
Io=0
Ripple
(Vp-p)
4
2
0

220V
DC Output Voltage(Vo)
Io=0.1A
40.3V
38.5V
31.5V
29.8V
35V
42V
28V
3300 PF
Vo
Io=1A
37.5V
35.8V
34.2V
27.8V
24.3
31V
26V
QW-R107-004,B