DOWNLOAD Harman Kardon MAS 100-110 (serv.man7) Service Manual ↓ Size: 3 MB | Pages: 57 in PDF or view online for FREE

Model
MAS 100-110 (serv.man7)
Pages
57
Size
3 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
mas-100-110-sm7.pdf
Date

Harman Kardon MAS 100-110 (serv.man7) Service Manual ▷ View online

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SHENZHEN TUOFENG
harman/kardon
MAS 100 / MAS 110 / MAS 1 Service Manual
Page 33 of 57
Product Specification
Power Factor Controller 
SG6961
© System General Corp. 
 
www.sg.com.tw  •  www.fairchildsemi.com  
Version 1.3.1 (IRO33.0028.B6) 
 
September 24, 2007 
FEATURES  
„  Boundary Mode PFC Controller 
„  Low Input Current THD 
„  Controlled On-Time PWM 
„  Zero-Current Detection 
„  Cycle-by-Cycle Current Limiting 
„  Leading-Edge Blanking Instead of RC Filtering 
„  Low Start-up Current (10µA Typical) 
„  Low Operating Current (4.5mA Typical) 
„  Feedback Open-Loop Protection 
„  Programmable Maximum On-Time  (MOT) 
„  Output Over-Voltage Clamping Protection 
„  Clamped Gate Output Voltage 16.5V 
APPLICATIONS 
„  Electric Lamp Ballasts 
„  AC-DC Switching Mode Power Converter 
„  Open-Frame Power Supplies and Power Adapters 
„  Flyback Power Converters with ZCS/ZVS 
DESCRIPTION 
The SG6961 is an 8-pin boundary mode PFC controller IC 
intended for controlling PFC pre-regulators. The SG6961 
provides a controlled on-time to regulate the output DC 
voltage and achieve natural power factor correction. The 
maximum on-time of the external switch is programmable 
to ensure safe operation during AC brownouts. An 
innovative multi-vector error amplifier is built in to 
provide rapid transient response and precise output 
voltage clamping. A built-in circuit disables the controller 
if the output feedback loop is opened. The start-up current 
is lower than 20µA and the operating current is under 
4.5mA. The supply voltage can be up to 20V, maximizing 
application flexibility.  
 
 
TYPICAL APPLICATION 
ZCD
MOT
GND
CS
GD
INV
COMP
VCC
SG6961
VAC
Vo
 
harman/kardon
MAS 100 / MAS 110 / MAS 1 Service Manual
Page 34 of 57
Product Specification
Power Factor Controller 
SG6961
© System General Corp. 
 
www.sg.com.tw  •  www.fairchildsemi.com  
Version 1.3.1 (IRO33.0028.B6) 
 
September 24, 2007 
MARKING DIAGRAMS                                            PIN CONFIGURATION 
ORDERING INFORMATION 
Part Number 
Pb-Free 
Package 
SG6961SZ 
 
8-Pin SOP  
SG6961DZ 
 
8-Pin DIP  
PIN DESCRIPTIONS 
Pin No. 
Symbol 
Description 
1 INV 
Inverting input of the error amplifier. INV is connected to the converter output via a resistive divider. This pin 
is also used for over-voltage clamping and open-loop feedback protection. 
2 COMP 
The output of the error amplifier. To create a precise clamping protection, a compensation network between 
this pin and GND is suggested. 
3 MOT 
A resistor from MOT to GND is used to determine the maximum on-time of the external power MOSFET. The 
maximum output power of the converter is a function of the maximum on-time. 
4 CS 
Input to the over-current protection comparator. When the sensed voltage across the sense resistor reaches 
the internal threshold (0.82V), the switch is turned off to activate cycle-by-cycle current limiting.  
5 ZCD 
Zero Current Detection. This pin is connected to an auxiliary winding via a resistor to detect the zero crossing 
of the switch current. When the zero crossing is detected, a new switching cycle is started. If it is connected 
to GND, the device is disabled. 
6 GND 
The power ground and signal ground. Placing a 0.1µF decoupling capacitor between the VCC
 
and GND pins 
is recommended. 
GD 
Totem-pole driver output to drive the external power MOSFET. The clamped gate output voltage is 16.5V. 
VCC 
Driver and control circuit supply voltage. 
T
: D=DIP, S=SOP
P : 
Z=Lead Free + ROHS 
Compatible 
     Null=regular package 
XXXXXXXX
: Wafer Lot 
Y
: Year; 
WW
: Week
 
V
: Assembly Location 
CS
MOT
VCC 
GD 
GND 
ZCD 
INV
COMP
SG6961TP
 
XXXXXXXXYWWV 
harman/kardon
MAS 100 / MAS 110 / MAS 1 Service Manual
Page 35 of 57
©2003 Fairchild Semiconductor Corporation
April 2003
IS
L9R1560P
F
2
ISL9R1560PF2  Rev. A1
ISL9R1560PF2
15A, 600V Stealth™ Diode
General  Description
The ISL9R1560PF2 is a Stealth™ diode optimized for 
low loss performance in high frequency hard switched 
applications. The Stealth™ family exhibits low reverse 
recovery current (I
RM(REC)
) and exceptionally soft 
recovery under typical operating conditions.
This device is intended for use as a free wheeling or 
boost diode in power supplies and other power 
switching applications. The low I
RM(REC)
 and short t
a
phase reduce loss in switching transistors. The soft 
recovery minimizes ringing, expanding the range of 
conditions under which the diode may be operated 
without the use of additional snubber circuitry. Consider 
using the Stealth™ diode with an SMPS IGBT to 
provide the most efficient and highest power density 
design at lower cost.
Formerly developmental type TA49410.
Features
• Soft Recovery . . . . . . . . . . . . . . . . . . . . . . t
b
/ t
a
 > 1.2
• Fast Recovery. . . . . . . . . . . . . . . . . . . . . . . t
rr
 < 30ns
• Operating Temperature. . . . . . . . . . . . . . . . . .  150
o
C
• Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . 600V
• Internally Isolated . . . . . . . . . . . . . . . . . . . . . . . .  1kV
• Avalanche Energy Rated
Applications
• Switch Mode Power Supplies
• Hard Switched PFC Boost Diode
• UPS Free Wheeling Diode
• Motor Drive FWD
• SMPS FWD
• Snubber Diode
Device Maximum Ratings
T
C
 = 25°C unless otherwise noted
Symbol
Parameter
Ratings
Units
V
RRM
Repetitive Peak Reverse Voltage
600
V
V
RWM
Working Peak Reverse Voltage
600
V
V
R
DC Blocking Voltage
600
V
I
F(AV)
Average Rectified Forward Current (T
C
 = 25
o
C)
15
A
I
FRM
Repetitive Peak Surge Current (20kHz Square Wave)
30
A
I
FSM
Nonrepetitive Peak Surge Current (Halfwave 1 Phase 60Hz)
200
A
P
D
Power Dissipation
30
W
E
AVL
Avalanche Energy (1A, 40mH)
20
mJ
T
J
, T
STG
Operating and Storage Temperature Range
-55 to 150
°C
T
L
Maximum Temperature for Soldering
Leads at 0.063in (1.6mm) from Case for 10s
300
°C
CAUTION: Stresses above those listed in “Device Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and 
operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
K
A
CATHODE
ANODE
TO-220F
Package
Symbol
harman/kardon
MAS 100 / MAS 110 / MAS 1 Service Manual
Page 36 of 57
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