Fairchild FPS Series, Руководство по конструкции

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www.fairchildsemi.com/fps
FPS
™
Design Guide
Examples of Typical Application Circuits
85V-265VAC input
Lp = 1200uH 94/9/2 EF13 (on Vogt Fi324 core)
9V/100mA output
fsw=134kHz
1 2
VCC
5
DRAIN
7
VSTR
8
GND
1
GND
2
GND
3
VFB
4
3
1
4
5
6
1
2
3
4
CONN1
B2P3-VH
FS1
230V/250mA
R201
100R
0.125W
R105
10R
0.125W
R202
470R
0.125W
D201
EGP10D
R100
L100
C100
10uF
400V C101
10uF
400V
C103
4.7uF
63V C104
47uF
50V
+
L101
IC1
FSD210M
D105
FDLL4148
T1
EF13 VOGT 6PIN
+
R101
Q1
BC847B
D202
BZX84C9
0.35W C201
220uF
25V
+
D103
P6KE150A
Pm = 600W
D102
UF4007
+
CONN2
B4B-XH-A
D101
1N4007
This compact non-isolated flyback solution draws less than 100mW standby power over the whole input voltage range. This example
shows a 9V output system. Here the FSD210 is powered from an auxiliary winding rather than directly from the high voltage bus.
For output voltages of 12V and over, the device may be powered directly from the output winding. A low cost Zener diode circuit
provides the regulation reference.
• Less than 100mW standby power
– Ideal for applications permanently connected to an AC supply
• Overload protection circuit distinguishes between temporary and permanent overload
– Device does not shut down during load surge conditions
– Inherent short circuit protection
• Frequency modulation reduces EMI reduction circuitry
– Low cost, compact solution possible
Fairchild Devices Description
FSD210M Fairchild Power Switch (0.3A/134kHz)
P6KE150A Transient Voltage Suppressor (600W/150V)
EGP10D Fast Recovery Diode (1A/200V)
BZX84C9 Zener Diode (9V)
UF4007 Fast Recovery Diode (1A/1000V)
1N4007 General Purpose Diode (1A/1000V)
FDLL4148 General Purpose Diode (10mA/100V)
BC847B General Purpose Transistor
1W Power Supply with Less Than 100mW Standby Power
Typical Application – Small home or factory automation appliances