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Engineering Test Report Design of 20V/5A @100W notebook Adapter with TEA2016+TEA1995
Features :
• This product is a PFC+LLC controller combo , it offers extra functions and several operation settings for flexible
power supply design ;
• PFC valley/zero voltage switching for minimum switching losses (NXP patented) ;
• Excellent no-load system input power (<75mW) ;
• LLC and PFC burst mode soft start/stop for audible noise reductior ;
• Complete System and Output Protections (SCP, OPP, OCP, OVP, OTP) . 16-April-2019, Rev-1
(WPI-Shenzhen)
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1 1. Power Supply Specification
Description Symbol Min Typ Max Units Comment/Conditions
Input
Voltage Vin 90 264 V
Frequency fLINE 47 50/60 63 Hz
No-load Input Power Pin 75 mW
Output
Output Voltage (20V) Vout 19 20 21 V Measured at the End of Cable
Output Current (20V) Iout 5 A
Output Ripple Voltage (20V) Vripple 150 mVp-p
Conducted EMI Margin 6 dB CISPR22B/EN55022 class B
Efficiency η 90 % 115 and 230V AC （Full Load）
Ambient Temprature Tamb 0 40 ℃ Free convection,sea level
Surge Teat 1 KV Differential Mode:2Ω
ESD(Air Discharge) 15 KV On each output terminals；+/—
Safety Designed to meet IEC950，UL1950 Class Ⅱ
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1 2. Schematic
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1 3.1 Circuit board
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1
3.2 Circuit board
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1 4. BOM
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1 5. PFC Inductance Information
ELECTRICAL SPECIFICATIONS:
1. Primary Inductance (Lp) = 200uH±7% @100KHz
2. Electrical Strength = 3KV, 50/60Hz,1Min
SCHEMATIC
MATERIALS:
1. Core : RM8 (Ferrite Material TDK PC95 or equivalent,
Ae=64mm^2)
2. Bobbin : RM8 (6pin).
3. Magnet Wires (Pri) : Type 2-UEW
FINISHED :
1. Varnish the assembly completely
BOTTOM TOP
2T Tape
5
N1 2UEW 0.01 mmx40
35Ts –
Primary (Clockwise)
3
N1
N1=35Ts
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1 5.1 Transformer Information
ELECTRICAL SPECIFICATIONS:
1. Primary Inductance (Lp) = 500uH±7% @100KHz
2. Primary Leakage Inductance 50uH±7%
3. Electrical Strength = 3KV, 50/60Hz,1Min
SCHEMATIC
MATERIALS:
1. Core : RM10 (Ferrite Material TDK PC95 or equivalent,
Ae=97mm^2)
2. Bobbin : RM10 (6pin).
3. Magnet Wires (Pri) : Type 2-UEW
FINISHED :
1. Varnish the assembly completely
BOTTOM TOP
2T Tape
1T Tape
1
V+
V-
N2
N1 2UEW 0.6 mmx1
29Ts –
Primary (Clockwise)
N4 2UEW 0.2 mmx1
3Ts –
Primary (Clockwise)
2
4
6
N1
N4
1Ts Tape
N2 2UEW 0.01 mmx100C
3Ts – Secondary
(Clockwise)
N3 2UEW 0.01 mmx100C
3Ts – Secondary
(Clockwise)
Double winding wound
simultaneously（双线并绕）
5
N5
Np:Ns:Nvcc=29:3:3
N3
V-
N4 2UEW 0.2 mmx1
3Ts –
Primary (Clockwise)
1T Tape
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1
6.1 Regulation & Efficiency Measurement (20V)
* Note: Output voltage is measured at USB end. (Set HVDCP Output to 20V)
Vin (Vac)
Pin (W)
Vout On PCB（V）
Iout （A）
PF Pout (W)
η （%）
Load （%）
90
30.13 20.34 1.26 97.25 25.63 85.06 25
57.63 20.34 2.512 98.1 51.09 89.3 50
85.6 20.33 3.763 98.3 76.52 89.39 75
114.2 20.33 5.015 99.23 101.93 89.26 100
115
30.14 20.34 1.26 96.17 25.63 85.02 25
57.21 20.34 2.512 97.4 51.09 89.3 50
84.5 20.33 3.763 98.18 76.52 90.56 75
112.1 20.33 5.015 98.35 101.93 90.93 100
230
29.87 20.34 1.26 80.4 25.63 85.81 25
56.4 20.34 2.512 89.39 51.09 90.55 50
83.2 20.33 3.763 91.8 76.52 91.9 75
109.8 20.33 5.015 92.8 101.93 92.83 100
264
29.65 20.34 1.26 73.14 25.63 86.44 25
56.25 20.34 2.512 83.86 51.09 90.83 50
82.9 20.33 3.763 88.4 76.52 86.43 75
109.45 20.33 5.015 90.86 101.93 93.13 100
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1 7. Output Ripple
VIN=90Vac No Load
VIN=264Vac No Load
VIN=90Vac Full Load
VIN=264Vac Full Load
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1 8 DLR Load Response ( 10mS/10mS)
CH1: Output Voltage, 2V/Div CH2: Output Current, 2A/Div
CH1: Output Voltage, 2V/Div CH4: Output Current, 2A/Div
Test Conditions: 1. AC input = 90VAC 2. Load range: 0A-5A-0A 3. Frequency: 50Hz(10ms/10ms) 4. Slew rate: 50mA/uS
Test Conditions: 1. AC input = 264VAC 2. Load range: 0A-5A-0A 3. Frequency: 50Hz(10ms/10ms) 4. Slew rate: 50mA/uS
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1 8.1 Output startup waveform
Test conditions: • Output at No-Load and Full-Load
No LOAD V:4.2V/div t: 10ms/div
Full LOAD V:4.2V/div t: 4ms/div
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1 8.2 Output Shutdown waveform
Test conditions: • Output at Full-Load
90Vac V:4.2V/div t: 4ms/div
264Vac V:4.2V/div t: 4ms/div
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1
9. PFC MOS Maximum Invers Voltage
Test Condition: VIN=90VAC, Full-Load , Startup and Normal , RESULT: PIV= 478V
PFC MOS of specification : K31A60W @17A/600V (Q1)
Stratup Normal
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1
9. PFC MOS Maximum Invers Voltage
Test Condition: VIN=264VAC, Full-Load , Startup and Normal , RESULT: PIV= 442V
PFC MOS of specification : K31A60W @17A/600V (Q1)
Stratup Normal
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1
10 PFC Diode Maximum Invers Voltage
Test Condition: VIN=90VAC, Full-Load , Startup and Normal , RESULT: PIV= 428V
PFC Diode of specification : ES5J @5A/600V (D2)
Stratup Normal
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1
11. PFC Diode Maximum Invers Voltage
Test Condition: VIN=264VAC, Full-Load , Startup and Normal , RESULT: PIV= 428V
PFC Diode of specification : ES5J @5A/600V (D2)
Stratup Normal
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1
10. LLC High MOS Maximum Invers Voltage
Test Condition: VIN=264VAC, Full-Load , Startup and Normal , RESULT: PIV= 438V
PFC MOS of specification : STD14NM50N @14A/500V (Q2)
Stratup Normal
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1
11 LLC LOW MOS Maximum Invers Voltage
Test Condition: VIN=264VAC, Full-Load , Startup and Normal , RESULT: PIV= 438V
LLC MOS of specification : STD14NM50N @14A/500V (Q3)
Stratup Normal
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1
12 SR LOW MOS Maximum Invers Voltage
Test Condition: VIN=264VAC, Full-Load , Startup and Normal , RESULT: PIV= 53.8V
LLC MOS of specification : TPH4R50ANH @60A/100V (Q4)
Stratup Normal
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1
13 SR MOS Maximum Invers Voltage
Test Condition: VIN=264VAC, Full-Load , Startup and Normal , RESULT: PIV= 53.8V
LLC MOS of specification : TPH4R50ANH @60A/100V (Q5)
Stratup Normal
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1 14.1 Conducted EMI (Output Float, CR, 230Vac)
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1 14.2 Conducted EMI (Output Float, CR, 120Vac)
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1
15.2 Radiated EMI PK & AV (Output Floating, CR, @230Vac)
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Engineering Report 20V/5A @100W notebook Adapter; -Rev-1
THANKS
