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UNISONIC TECHNOLOGIES CO., LTD
12W Adaptor Module Using UC3873
Subject
Key features:
●AC Input Full Range 90Vac~264Vac
●DC Output 5Vdc /2.4A
●Average Efficiency > 75 % Meet DoE level 5 Regulation 74.74%
●Standby power consumption <0.3W Meets DoE level 5 regulation
●OCP/OVP/OLP/SCP Protection
● Programmable OTP Highly secure
Revision History
Revise Date Version Reason/Issue
2013/12/10
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UC3873 / 12W / 5V_ 2.4A Demo Board Manual
2
12W Adaptor Module Using UC3873
Contents Index Page
1 Adaptor Module Specification 31.1. Input Characteristics 31.2. Output Characteristics 31.3. Performance Specifications 31.4. Protection Function 31.5. Environment 3
2 Adaptor Module Information 42.1. Schematic 42.2. BOM 4,52.3. Adaptor Module Snapshot 52.4. Transformer Design 62.4.1 Transformer Specification 62.4.2 Transformer Winding Data 6
3 Performance Evaluation 73.1. Input Characteristics 83.1.1 Full Load Efficiency 83.1.2 CEC Efficiency 8,93.1.3 Standby Power 103.1.3.1Hiccup Mode 103.1.3.2Normal Mode 103.2. Output Characteristics 113.2.1. Line Regulation & Load Regulation 113.2.2. Ripple & Noise 113.2.3. Overshoot & Undershoot 123.2.4. Dynamic Test 133.2.5. Time Sequence 13,14,153.3. Protection 153.3.1. Short Circuit Protection 153.3.2. Over Voltage Protection 153.3.3. Over Load Protection 163.3.4. Over Temperature Protection 163.3.5 Thermal Testing 16
3.4 EMI Test 173.4.1 Conduction EMI Test 173.4.1.1 AC110V/60Hz 173.4.1.1.1 Line1 173.4.1.1.2 Line2 183.4.1.2AC230V/50Hz 193.4.1.2.1 Line1 193.4.1.2.2 Line2 20
4 Other Important Waveforms 214.1.1 Vds;Ids;Vcc;Vfb waveform at No Load @90Vac/60Hz 214.1.2 Vds;Ids;Vcc;Vfb waveform at Full Load@90Vac/60Hz 214.1.3 Vds;Ids;Vcc;Vfb waveform at No Load@264Vac/50Hz 224.1.4 Vds;Ids;Vcc;Vfb waveform at Full Load@264Vac/50Hz 224.2. Waveform at Full Load, Operate Start/Normal/Output Short to Ground Tes 23
4.2.1 Start up at Full Load Waveform from Top to Bottom :Vds; Ids;Transformer 23 Secondary Voltage.
4.2.2 Normal Full Load Waveform from Top to Bottom :Vds; Ids;Transformer 23 Secondary Voltage.
4.2.3 Output Short to Ground Waveform from Top to Bottom :Vds; Ids;Transform 24 Secondary Voltage.
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3
12W Adaptor Module Using UC3873
1. Adaptor Module Specification1.1. Input Characteristics● AC input voltage rating 100Vac ~ 240Vac● AC input voltage range 90Vac ~ 264Vac● AC input frequency range 47Hz ~ 63Hz● Input current 310mA (rms)max. @ 90Vac/60Hz
1.2. Output Characteristics● Output Voltage 5V● Output Tolerance < ±5%● Min. load current Approx.0 mA● Max. load current 2.4A
1.3. Performance Specifications● Maximum Output Power 12W● Standby Power < 0.3W@ 115Vac ~ 230Vac
( Meet DoE Level 5 Regulation. )● Average Efficiency >75% @ 115Vac ~ 230Vac
( Meet DoE Level 5 Regulation 74.74%)● Line Regulation >0.1%● Load Regulation(Cable End) <±5%● Ripple & Noise < 40mV● Hold up Time Minimum 10msec. @100Vac● Turn on Delay time Maximum 2 sec, @90Vac
1.4. Protection Function● Short Circuit Protection Shut down and auto recovery● Over Voltage Protection Shut down and auto recovery● Over Load Protection Shut down and auto recovery● Over Temperature Protection Shut down and auto recovery
1.5. Environment● Operation Temperature 0℃ to 40 ℃● Operation Humidity 20% to 90% R.H● Storage Temperature -40℃ to 60 ℃● Storage Humidity 0% to 90% R.H
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12W Adaptor Module Using UC3873
2. Adaptor Module Information2.1. Schematic
2.2. BOMNo. Quantity1 42 13 14 15 16 17 18 19 3
10 111 112 213 214 115 116 1
Capacitor, aluminum electrolytic, 10uF/50V, 105℃,±20%Capacitor, ceramic, 103pF/1000V, X7R, ±10%, SMD1206
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Diode, fast recovery, 1N4007, 1A/1000V
Capacitor, ceramic, 222pF/50V, X7R, ±10%, SMD0805C13Capacitor, Y1, 102pF/400V, 105℃,±20%
Diode, fast recovery, FR107, 1A/1000VDiode, fast recovery, US1D, 1A/200V, SMDDiode, dual Schottky, SB2040, 2*10A/100V, TO-220FD7
Capacitor, aluminum electrolytic, 470uF/16V, 105℃,±20%Capacitor, aluminum electrolytic, 220uF/16V, 105℃,±20%
Position
C3
C1C2
Description
Capacitor, aluminum electrolytic, 4.7uF/400V, 105℃,±20%Capacitor, aluminum electrolytic, 22uF/400V, 105℃,±20%
D1,D2,D3,D4
D5D6
C4C5,C12,C15C7
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Capacitor, ceramic, 104pF/50V, X7R, ±10%, SMD0805Capacitor, ceramic, 470pF/50V, X7R, ±10%, SMD1206Capacitor, ceramic, 103pF/50V, X7R, ±10%, SMD0805Capacitor, ceramic, 102pF/50V, X7R, ±10%, SMD1206
C14C8C9C10,C11
CY1
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12W Adaptor Module Using UC3873
17 118 119 220 121 222 323 124 225 126 127 128 129 Resistor, chip,22R, 1/8W,±5%, SMD080530 131 132 133 234 135 Resistor, chip,22R, 1/8W,±5%, SMD080536 137 138 139 140 141 142 343 1
: The Yellow color block means the parts that UTC can provide.
2.3. Adaptor Module Snapshot
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MOSFET,MOS power N-channel, 4N/60,4A/600V, TO-220FTransformer, 1.2mH ,1KHz, EE-22
Resistor, chip, 1K, 1/8W,±5%, SMD0805
R5
R14
Resistor, chip,680R, 1/8W,±5%, SMD0805Resistor, chip,22K, 1/8W,±1%, SMD0805
R6
R8R7,R13
R4
Resistor, chip, 0R, 1/8W,±5%, SMD0805Resistor, chip,51K, 1/8W,±5%, SMD0805
Resistor, chip,10R, 1/8W,±5%, SMD0805Resistor, chip,43R, 1/8W,±5%, SMD0805
Inductor, choke, 5uHResistor, chip, 1M5, 1/4W,±5%, SMD1206
L1
R11
L2R1,R2R3
R17
R9,R10
Fuse,2A/250V
R12
R15R16
R14
Resistor, chip, 2R, 1/4W,±5%, SMD1206
Resistor, chip, 100K, 1/8W,±5%, SMD0805
F1
R20
Q1T1IC2
J1,J2,J3
R18,R19
IC1IC3
PCB 35mmx50mmx1.6mm
Inductor, choke,1mH
IC, TL431 SOT-23IC, Opto-Coupler, PC-817B, DIP-8Jumper
Resistor, chip, 200K, 1/4W,±5%, SMD1206
Resistor, chip,330K, 1/8W,±5%, SMD0805
Resistor, chip, 820R, 1/8W,±5%, SMD0805
IC, PWM controller, UTC UC3873, SOT26
Resistor, chip,220R, 1/8W,±5%, SMD1206
Resistor, chip,2K2, 1/8W,±5%, SMD0805
50mm
35mm 25mm
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12W Adaptor Module Using UC3873
2.4. Transformer Design2.4.1. Transformer Specification
1) Bobbin: EE22 -10 Pin2) Core material : PC40 (TDK) or equivalent.3) Lm 8-9: 1.2mH,±10% (1KHz )
2.4.2. Transformer DiagramN5 EMI /Shielding Layer
10 3Ts Tape) ○ N1(NC-10)=0.4Φ X34Ts ○ 1T Tape
) ( 1● ● N1(9-NC)=0.4Φ X16Ts ○ 1T Tape
9● ) ( ● N6(6)= 0.2Φ X30Ts ○ 1T Tape) ( N4 ● N3(7-6)=0.2Φ X14Ts ○ 1T Tape) ( 5Ts ● N4(1-4)=0.5Φ X2 X 5Ts ○ 1T Tape
8● ) ( ○ N2(NC-9)=0.4Φ X16Ts ○ 1T Tape
( ● N2(8-NC)=0.4Φ X16Ts ○ 1T Tape
14Ts 7● ( ●N5(10)=0.2Φ X30Ts
○
) ( 4) Bottom
N6 EMI /Shielding LayerTransformer Winding DataLayer No. Start Finish
1 10 EMI /Shielding23 8 NC45 NC 96
89 7 61011 6 EMI /Shielding1213 9 NC1415 NC 1016
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Winding Material
N232Ts
N314Ts 6
TapeN2
N132Ts
0.2Φ 2 UEWTape
0.4Φ 2 UEWTapeN2
N1
Triple InsulatedWire 0.5Φ X 2
Tape 0.4Φ 2 UEW
Tape
Tape Tape
N5
TapeN1
Tape
N4
TapeN6
Tape
N3Tape
161
0.4Φ 2 UEWTape
Turns30116116
163
130
1
0.4Φ 2 UEWTape
0.2Φ 2 UEWTape
0.2Φ 2 UEW1
7 1 5 4
Tape
114
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12W Adaptor Module Using UC3873
3. Performance Evaluation This document presented here is to describe the Adaptor Module performance. The measuring data are tested at the 18AWG ;8 feet long wire cable end.
The Summarized Result :
Test Equipment:
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ChromaChroma
616026620263102
DPO30142000
PT-3S
TektronicsKeithleyOpex
1.AC Source2.Digital Power meter3.Electronic Load4.Digital Oscilloscope5.Multi-meter6.Thermal meter
Chroma
Over Voltage Protection Over Load Protection Over Temperature Protection
1. Input Characteristics
Item Vendor Model No:
Load Regulation(Cable End) Ripple & Nnoise Overshoot Ripple of DynamicTest3. Protection Short Circuit Protection
Shut Down and Auto Recovery
< 40mV< 5%
Shut Down and Auto Recovery
Item
Input Current (90V/60Hz, full load) Standby Power at No Load (230Vac/50Hz) Averaged Efficiency (@115/230Vac, 25%~100% Load by Cable En
Output Tolerance Line Regulation
±5%>0.1% ±2.6%
Test result
310mA168mw
380mVp-p
2. Output characteristics80.04% / 76.92%
Shut Down and Auto RecoveryShut Down and Auto Recovery
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12W Adaptor Module Using UC3873
3.1. Input Characteristics3.1.1 Full Load Efficiency :Table 1 Full Load Efficiency :
Input
90Vac/60Hz115Vac/60H230Vac/50H264Vac/50H
3.1.2 CEC Efficiency: Meet Level 5 Regulation 74.74%.Remark: BVO : PCB side measured 5V output. B.Eff :PCB side measured Efficiency. W.VO:Wire Cable side measured 5V Output. W.Eff: Wire cable side measured Efficiency.
Pi(W) B.Vo(V) W.Vo(V) B.Eff(%) W.Eff(%) Pi(W) B.Vo(V) W.VO(V) B.Eff(%) W.Eff(%)
Table 3 CEC Efficiency :
Pi(W) B.Vo(V) W.Vo(V) BEff(%) W.Eff(%) Pi(W) B.Vo(V) W.Vo(V) B.Eff(%) W.Eff(%)
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75%(1.8A) 100%(2.4A)
80.04
11.12 5.13 4.94
11.36 5.13 4.94 81.29
83.04
77.32
14.89 4.87
5.13
Input Voltage25%(0.60A) 50%(1.2A)
80.75
4.14 5.13 5.07 74.35 73.48 5.00
Pin(W)
82.85
79.33
80.97
5.07 81.21 5.13 5.00
7.76
5.07 72.08
83.415
7.43
78.5
83.08
77.92 75.957.9 5.13
83.11
2.4
71.24
Table 2 CEC Efficiency :
11.11 5.13
5.13 5.00
5.00
82.686
81.12
5.13
3.79 5.13 80.26
5.13
4.94
79.96 14.76
82.08
79.19
5.13 77.764.87
82.798 78.6
4.87
81.916
4.8714.87
4.94
78.27
80.44
5.07 7.41
15.0377.46
5.13
5.13264Vac/50Hz 11.48
264Vac/50Hz
3.75
4.27
90Vac/60Hz
5.13
5.13
0.170.16
0.26 14.76
Io(A)
2.44.874.87 79.194.87
2.42.4
78.50
78.60
14.89
Irms(mA)
0.31
Eff(%)Vo(V)
115Vac/60Hz
230Vac/50Hz
77.764.87
Input Voltage
90Vac/60Hz
115Vac/60Hz
230Vac/50Hz
14.8715.03
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12W Adaptor Module Using UC3873
Table 4 CEC Average Efficiency :
Fig1 Wire End Efficiency VS Load
Fig 2 Board End Efficiency VS Load
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82.74
82.63
90Vac/60Hz
75.6078.09
B.Aver. Eff.(%)
80.04
76.9279.44
AverageW.Aver.Eff.(%)
80.19
115Vac/60Hz
Input Voltage
230Vac/50Hz
264Vac/50Hz
70.00 72.00 74.00 76.00 78.00 80.00 82.00 84.00
Boar
d Ef
ficie
ncy
( % )
Board End Efficiency VS Load
90Vac/60Hz
115Vac/60Hz
230Vac/50Hz
264Vac/50Hz
70.00 72.00 74.00 76.00 78.00 80.00 82.00
Wire
end
Effi
cien
cy (
% )
Wire End Efficiency VS Load
115Vac/60Hz
230Vac/50Hz
264Vac/50Hz
90Vac/60Hz
10
12W Adaptor Module Using UC38733.1.3 Standby power :There are two kinds of modes can be chosen; Hiccup mode and Normal
Hiccup Operation_ IC On Vcc Voltage is 13.5V. IC _OFF Vcc Voltage is 8.9
Fig. 3 Hiccup Operation
Table 5 Hiccup M ode S tandy P ower T est D ata List:
90Vac/60Hz115Vac/60Hz230Vac/50H264Vac/50H
3.1.3.2 Normal Mode Standyby Power
Table 6 Normal Mode Standyby PowerTest Data
90Vac/60Hz115Vac/60H230Vac/50H264Vac/50H
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Meet Level 6 < 0.1W
Meet Level 6 < 0.1W Meet Level 5 < 0.3W Meet Level 5 < 0.3W
InputVoltage
5.13
25Pin(mW) Vo(V)
Stand by powerRemark
192
4.63~5.07
4.72~5.084.94~5.06
InputVoltage
168
38108
103
143
Vo(V)
5.13
Pin(mW)142 5.13
CH2 5V Output waveform
4.90~5.11
5.13
3.1.3.1 Hiccup mode: The R1 resistor change 10 ohm to 390 ohm,then the module will go to Hiccup
Stand by power
Remark
Meet Level 5 <0.3W
11
12W Adaptor Module Using UC3873
3.2 Output Characteristics3.2.1 Line Regulation & Load RegulationTable 7 Line Regulation & Load Regulation
90Vac/60Hz115Vac/60H230Vac/50H264Vac/50HLineRegulation%
3.2.2 Ripple & NoiseTable 8 Ripple & Noise
90Vac/60Hz115Vac/60H180Vac/50H264Vac/50H
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RemarkFull Load
9.216.427
—
— 18.8
Fig.6 264Vac/50Hz@ No Load
5.20
Load
4.87
5.00
LoadRegulation%Half Load
5.13
No Load (V)
5.13 4.875.00
InputVoltage No. Load
>0.1%
InputVoltage
5.205.205.205.13
5.00 4.875.00
—
Fig 6
22.6
28.4 22.8
Fig.7 264Vac/50Hz@Full Load
Fig 7
Fig.4 90Vac/60Hz@ No Load Fig.5 90Vac/60Hz@Full Load
—
31.4
RemarkFull Load
Ripple & Noise(mV)
4.87
Fig 4 Fig 5
5.13±2.6%
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12W Adaptor Module Using UC3873
Table 9 Ripple & Noise
Fig.8 90Vac / 60Hz, Overshoot @ No Load
Fig.10 264Vac / 60Hz, Overshoot @ Full Load
Fig.12 264Vac/60Hz, Undershoot @ Full Load
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Undershoot
Full LoadOvershoot
Input Voltage RemarkData (%)Over shoot / Undershoot
3.2.3 Overshoot
No Load
4.10
No Load
Fig.9Undershoot
UndershootOvershoot
OverShoot
Fig.11 90Vac/60Hz,Under shoot @ Full Load
264Vac/50Hz 0
—
90Vac/60Hz
Full Load
Fig. 11Fig. 8
—
Fig.10Fig.12
4.68
4.68
Fig.9 90Vac / 60Hz, Overshoot @ Full Load
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12W Adaptor Module Using UC3873
3.2.4 Dynamic Test
Table 10 Dynamic Test
3.2.5 Time SequenceTable 11 Time Sequence
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264Vac/50Hz
The test current set Hi Level current is 2.4A ; and the Low Level set to 1.2A.
90Vac/60Hz
360RemarkInput Voltage
90Vac/60Hz344
Fig. 13 90Vac / 60Hz Dynamic Test
264Vac/50Hz
Output (mV)Fig.13
Hold-UpTime240Vac/50Hz
Fig. 17
CH4 Current Probe Waveform CH4 Current Probe Waveform
Turn on Delay Time
Meas. DataInput VoltageItem
2.56ms (Full Load)2.40ms (Full Load)
114ms (Full Load)
Fig.14
240Vac/50Hz 3.52ms (Full Load)Falling Time
100Vac/60Hz
12.80ms (Full Load)240Vac/50Hz
Fig.21Fig. 22
Fig. 16
Fig. 14 264Vac / 50Hz Dynamic Test
0.60s (Full Load)1.64s (Full Load)
The Hi;Low level switching time is set to 50ms each.
RemarkFig. 15
Fig. 18Fig. 19Fig. 20
Rise Time
100Vac/60Hz
100Vac/60Hz240Vac/50Hz
2.56ms (Full Load)
100Vac/60Hz
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12W Adaptor Module Using UC3873
Fig. 16 264Vac/50Hz, Full load Turn-on Delay TCH1=AC Input, CH2=Vout
CH1=AC Input, CH2=Vout
Fig. 19 100Vac/60Hz,Full Load Rising Time Fig.20 240Vac/50Hz,Full load Rising Tim
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Fig. 15 90Vac/60Hz, Full Load Turn-on Delay Time
Fig.18 240Vac / 50Hz,Full Load Hold-Up TimeFig. 17 100Vac / 60Hz, Full Load Hold-UpTimeCH1=AC Input, CH2=Vout
CH1=AC Input, CH2=Vout
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12W Adaptor Module Using UC3873
Fig. 21 100Vac/60Hz Full load FallingTime
3.3 Protection
Table 12 Short Circuit Protection
3.3.2. Over Voltage Protection (OVP) When Over Voltage Protectioncondition is removed and the power automatically recoverTable 13 OVP
Fig 23. 90Vac/60Hz OVP (Full Load) CH1:Vcc,CH2: Ouput 5V
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264Vac/50Hz
Input Voltage
Short Circuit Protection
PASS
Vcc 25.6V(Full Load)
Fig 24 264Vac/50Hz OVP (Full load)
264Vac/50Hz90Vac/60Hz
PASS
RemarkFig. 23
Input Voltage90Vac/60Hz
CH1:Vcc,CH2: Ouput 5V
Fig. 22 240Vac/50Hz Full load Falling Time
Fig. 24
Over VoltageP t ti
3.3.1 Short Circuit Protection When short the output voltage ,and no parts are damaged.Once Short Circuit condition is removed and the power should recover automatically .
Vcc 25.6V(Full Load)
16
12W Adaptor Module Using UC3873
When over load condition is removed and the power automatically recover.
Table 14 OLP
3.3.4 Programmable Over Temperature Protection
Until the voltage goes above the 1 Volt, and the module will recover automatically.
Tested at Room temperature 35℃ in Plastic ABS Case.
Table 16 Thermal TestingInput
Voltage90Vac/60Hz115Vac/60H230Vac/50H264Vac/50H
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230Vac/50Hz
172Vac/50Hz
3.61
264Vac/50Hz
150156
3.3.3 Over load Protection
Over %
154
3.3.3.1 Over load Protection
3.74
OLP(A)90Vac/60Hz
155153
3.72
Input Voltage
115Vac/60Hz
3.693.71
Remark
5V OutputCurrent 2.4 A
101℃98℃
66℃ 76℃ 87℃86℃
264Vac/50Hz 1.05
64℃ 75℃ 85℃97℃97℃
69℃ 81℃ 88℃68℃ 79℃
3.3.4 Thermal Testing
UC3873 MOSFET Transformer Schottky
(Case Dimension 61mmX35mmX120mm).
The pin3 voltage is under 1 Volt threshold,then the module will shut down Latch.
Input Voltage OTP Threshold (V)115Vac/60Hz 1
RemarkTable 15 OTP
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12W Adaptor Module Using UC3873
3.4 EMI Test 3.4.1 Conduction EMI Test 3.4.1.1 AC115V/60Hz3.4.1.1.1 Line1
Fig 25Limit : CISPR_B_00M_QP
Power : AC 115V/60Hz
Probe : ENV216_L1 - Line1
Table 17 Quasi Peak
ItemFreque
nc y(MHz)
CorrectFactor(dB)
Reading Level(dBuV)
Measure Level(dBuV)
Margin(dB)
Limit(dBuV)
Detector
Type1 0.190 9.698 43.130 52.828 -12.029 64.857 QUASI
PEAK2 0.460 9.711 40.010 49.721 -7.422 57.143 QUASI
PEAK3 1.388 9.763 40.230 49.993 -6.007 56.000 QUASI
PEAK4 2.654 9.810 36.020 45.830 -10.170 56.000 QUASI
PEAK5 23.712 9.981 40.740 50.721 -9.279 60.000 QUASI
PEAK
Table 18 Average
ItemFrequen
cy(MHz)
CorrectFactor(dB)
ReadingLevel
(dBuV)
MeasureLevel
(dBuV)
Margin(dB)
Limit(dBuV)
DetectorType
1 0.190 9.698 25.240 34.938 -19.919 54.857 AVERAGE
2 0.460 9.711 26.810 36.521 -10.622 47.143 AVERAGE
3 1.388 9.763 24.340 34.103 -11.897 46.000 AVERAGE
4 2.654 9.810 25.980 35.790 -10.210 46.000 AVERAGE
5 23.712 9.981 29.900 39.881 -10.119 50.000 AVERAGE
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18
12W Adaptor Module Using UC3873
3.4.1.1.2 Line2
Fig 26Limit : CISPR_B_00M_QP
Power : AC 115V/60Hz
Probe : ENV216 - Line2
Table 19 Quasi PeakItem Freque
ncy(MHz)
CorrectFactor(dB)
Reading Level(dBuV)
Measure Level(dBuV)
Margin(dB)
Limit(dBuV)
Detector Type
1 0.865 9.719 38.080 47.799 -8.201 56.000 QUASIPEAK
2 1.325 9.740 39.460 49.200 -6.800 56.000 QUASIPEAK
3 1.791 9.771 38.120 47.891 -8.109 56.000 QUASIPEAK
4 3.111 9.800 39.370 49.170 -6.830 56.000 QUASIPEAK
5 5.824 9.830 36.050 45.880 -14.120 60.000 QUASIPEAK
6 23.315 10.104 39.810 49.914 -10.086 60.000 QUASIPEAK
Table 20 AverageItem Freque
ncy(MHz)
CorrectFactor(dB)
Reading Level(dBuV)
Measure Level(dBuV)
Margin(dB)
Limit(dBuV)
Detector Type
1 0.865 9.719 27.530 37.249 -8.751 46.000 AVERAGE
2 1.325 9.740 25.570 35.310 -10.690 46.000 AVERAGE
3 1.791 9.771 27.050 36.821 -9.179 46.000 AVERAGE
4 3.111 9.800 26.980 36.780 -9.220 46.000 AVERAGE
5 5.824 9.830 26.090 35.920 -14.080 50.000 AVERAGE
6 23.315 10.104 29.120 39.224 -10.776 50.000 AVERAGE
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19
12W Adaptor Module Using UC3873
3.4.1.2 AC230V/50Hz3.4.1.2.1 Line1
Fig 27Limit : CISPR_B_00M_QP
Power : AC 230V/50Hz
Probe : ENV216_L1 - Line1
Table 21 Quasi PeakItem Freque
ncy(MHz)
CorrectFactor(dB)
Reading Level(dBuV)
Measure Level(dBuV)
Margin(dB)
Limit(dBuV)
Detector Type
1 0.248 9.701 40.870 50.571 -12.629 63.200 QUASIPEAK
2 0.554 9.715 43.830 53.545 -2.455 56.000 QUASIPEAK
3 0.662 9.720 45.400 55.120 -0.880 56.000 QUASIPEAK
4 1.130 9.741 44.540 54.281 -1.719 56.000 QUASIPEAK
5 2.119 9.806 40.640 50.446 -5.554 56.000 QUASIPEAK
Table 22 AverageItem Freque
ncy(MHz)
CorrectFactor(dB)
Reading Level(dBuV)
Measure Level(dBuV)
Margin(dB)
Limit(dBuV)
Detector Type
1 0.248 9.701 28.620 38.321 -14.879 53.200 AVERAGE
2 0.554 9.715 29.590 39.305 -6.695 46.000 AVERAGE
3 0.662 9.720 31.690 41.410 -4.590 46.000 AVERAGE
4 1.130 9.741 31.390 41.131 -4.869 46.000 AVERAGE
5 2.119 9.806 27.040 36.846 -9.154 46.000 AVERAGE
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20
12W Adaptor Module Using UC3873
3.4.1.2.1 Line 2
Fig 28Limit : CISPR_B_00M_QP
Power : AC 230V/50Hz
Probe : ENV216_Line2
Table 24 Quasi PeakItem Freque
ncy(MHz)
CorrectFactor(dB)
Reading Level(dBuV)
Measure Level(dBuV)
Margin(dB)
Limit(dBuV)
DetectorType
1 0.196 9.678 39.830 49.508 -15.178 64.686 QUASIPEAK
2 0.658 9.699 38.770 48.469 -7.531 56.000 QUASIPEAK
3 1.123 9.731 48.100 57.831 1.831 56.000 QUASIPEAK
Table 25 AverageItem Freque
ncy(MHz)
CorrectFactor(dB)
Reading Level(dBuV)
Measure Level(dBuV)
Margin(dB)
Limit(dBuV)
Detector Type
1 0.196 9.678 23.120 32.798 -21.888 54.686 AVERAGE
2 0.658 9.699 23.380 33.079 -12.921 46.000 AVERAGE
3 1.123 9.731 29.480 39.211 -6.789 46.000 AVERAGE
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21
12W Adaptor Module Using UC3873
4. Other Important Waveforms4.1.1. Waveform from Top to Bottom :Vds;Ids;Vcc;Vfb@90Vac/60Hz, No Load Measuring Data:Vds=212Vp-p; Ids=350mAp-p;Vcc=14.4V;Vfb=1.28V; Frequency:25.77KHz
(Time Base 40uS)
4.1.2. Waveform from Top to Bottom :Vds;Ids;Vcc;Vfb @90Vac/60Hz,Full Load Measuring Data:Vds=288Vp-p; Ids=680mAp-p;Vcc=19.6V;Vfb=4.3V; Frequency:62.11KHz
Fig. 31 Vds;Ids;Vcc;Vfb @90Vac/50Hz,Full Load
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Fig.29 V90Vac/60Hz, No Load Fig.30 90Vac/60Hz, No Load No entering busrt mode (Time base 10ms)
22
12W Adaptor Module Using UC3873
4.1.3. Waveform from Top to Bottom :Vds;Ids;Vcc;Vfb@264Vac/50Hz,No Load Measuring Data:Vds=470p-p; Ids=170mAp-p;Vcc=12.80V;Vfb=1.40V; Frequency:21.93KHz
4.1.4 Waveform fromTop to Bottom :Vds;Ids;Vcc;Vfb@ 264Vac/50Hz, Full Load Measuring Data:Vds=540Vp-p; Ids=640mAp-p;Vcc=21.20V;Vfb=3.70V; Frequency:60.24KHz
Fig.34 Vds;Ids;Vcc;Vfb 264Vac/50Hz, Full Load
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Fig.32 264Vac/50Hz, No load (Time Base 40uS) . Fig 33 264Vac/50Hz, No load (Time base 10m Entering Burst Mode: Burst group freq. 74Hz Entering Burst Mode: Burst Freq.:21.93KHz
23
12W Adaptor Module Using UC3873
4.2. Waveform at Full Load, Operating Start / Normal / Output Short to Ground . Table 26 Measuring Data at Full Load, Operating Start/ Normal / Output Short Test.
Vds(p-p) Ids(mA) Vsecondary Remark520 650 34.4 Fig 29540 640 37.2 Fig 30520 780 38 Fig 31
Fig.35 264Vac / 50Hz,Start up at Full load. Vds;Ids;Transformer Secondary Voltage
Fig.36 264Vac / 50Hz,Normal Full Load. Vds;Ids;Transformer Secondary Voltage
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Input voltage
4.2.1. Start up at Full Load Waveform from Top to Bottom :Vds;Ids;Transformer
4.2.2. Normal Full Load Waveform from Top to Bottom :Vds; Ids;Transformer Secondary Voltage.
Short at full load 264V/50HZ
Test ItemStart at full load 264V/50HZ Normal at full load 264V/50HZ
24
12W Adaptor Module Using UC3873
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4.2.3 Output Short to Ground Waveform from Top to Bottom :Vds;Ids;Transformer
Fig.37 264Vac / 50Hz, Output Short to Ground at Full Load. Vds;Ids;Transformer Secondary Voltage
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