INSTRUCTION MANUAL
INDEX
PAGE 1. Evaluation Method 11. 測定回路 Measurement Circuits ・・・・・･･･････････････････････････････････････････ 3 (1) 静特性 、待機電力特性、通電ドリフト特性、その他特性Steady state, Standby power, Warm up voltage drift and Other characteristics (2) 入力サージ電流（突入電流）波形 Inrush current waveform
(3) 出力リップル、ノイズ波形 Output ripple and noise waveform (4) EMI特性 ElectroMagnetic Interference characteristics
12. 使用測定機器 List of equipment used ･･････････････････････････････････････････････ 5
2. Characteristics
21. 静特性 Steady state characteristics
(1) 入力・負荷・温度変動 Regulation line and load, Temperature drift ･････････････・･ 6 (2) 出力電圧・出力リップルノイズ電圧 対 入力電圧
Output voltage and Output ripple and noise voltage vs. Input voltage ・・・・・・･････････ 7 (3) 入力電流・効率 対 出力電流 Input current and Efficiency vs. Output current ･・・････ 9 (4) 効率 対 入力電圧 Efficiency vs. Input voltage ・・・・・・･･････････････・・･･･････････ 11 (5) 起動・遮断電圧特性 Start up and Drop out voltage characteristics ････････・・・・･････ 13 22. 待機電力特性 Standby power characteristics ･･･････・・・・・・・･････････････････････････ 15 23. 通電ドリフト特性 Warm up voltage drift characteristics ････････････････････････････････ 17 24. 過電流保護特性 Over current protection (OCP) characteristics ････････････････････････ 19 25. 出力立ち上がり・立ち下がり特性 Output rise and fall characteristics ･･･････････････････ 21 26. 過渡応答（負荷急変）特性 Dynamic load response characteristics ･････････････････････ 29 27. 入力サージ電流（突入電流）特性 Inrush current characteristics ･･･････････････････････ 30 28. 出力リップル、ノイズ波形 Output ripple and noise waveform ･････・・・・・････････････････ 31 29. EMI特性 ElectroMagnetic Interference characteristics ･･･・・･････････････････････････ 32
使用記号 Terminology used
定義 Definition
Vin ･････ 入力電圧 Input voltage Vo ･････ 出力電圧 Output voltage Vrc ･････ RC電圧 RC voltage Iin ･････ 入力電流 Input current Io ･････ 出力電流 Output current Ta ･････ 周囲温度 Ambient temperature f ･････ 周波数 Frequency
INSTRUCTION MANUAL
1. Evaluation Method
11. 測定回路 Measurement Circuits
(1) 静特性 、待機電力特性、通電ドリフト特性、その他特性
Steady state, Standby power, Warm up voltage drift and Other characteristics
(2) 入力サージ電流（突入電流）波形 Inrush current waveform
(3) 出力リップル、ノイズ電圧、波形 Output ripple and noise voltage and waveform
C1 : 47μF Electrolytic Capacitor C2 : 8000μF Electrolytic Capacitor
C3 : 3.3V,5V 22μF Ceramic Capacitor 20ºC≦Ta≦85ºC : 3.3V,5V 22μF ×2parallel Ceramic Capacitor 40ºC≦Ta＜20ºC : 12V,15V 22μF Ceramic Capacitor +Vin RC +Vout Vout Vin TRM CCG3048**S Vin Fuse 6.3A C1 Load Controlled temp. chamber
Current Probe +Vin RC +Vout Vout Vin TRM CCG3048**S Vin Fuse 6.3A C1 Load Controlled temp. chamber
R2 C4 C3 1.5m 50Ω Cable Oscilloscope Bandwidth:20MHz : 50mm +Vin RC +Vout Vout Vin TRM CCG3048**S 48VDC C2 Fuse 6.3A C1 Load R1
INSTRUCTION MANUAL
(4) EMI特性 ElectroMagnetic Interference characteristics (a) 雑音端子電圧(帰還ノイズ) Conducted Emission Noise
(b) 雑音電界強度(輻射ノイズ) Radiated Emission Noise
VCCI class A 対応アプリケーション VCCI class A application system
入力電源 Input Line
金属大地面 Metal Ground Plane
接地 Earth Spectrum Analyzer
EMI Test Receiver Pre Amp. D = 3m アンテナ Antenna アルミ板 Aluminum Plate 供試機器 D.U.T. 台 Stand H = 80cm 回転机 Turn table 電源コード Power Cord フィルター Filter C1 : 4.7μF Ceramic Capacitor C2 : 47μF Electrolytic Capacitor 供試機器 D.U.T. 電源コード
Power Cord Stand
H = 80cm
入力電源 Input Line
金属大地面 Metal Ground Plane 接地
Earth Spectrum Analyzer
EMI Test Receiver
アルミ板 Aluminum Plate D = 40cm D = 80 cm 擬似電源回路網 AMN 50Ω/50μH 台 フィルター Filter 垂直接地基準面 Vertical Ground Reference Plane (2m×2m) +Vin RC +Vout Vout Vin TRM CCG3048**S Vin C2 Fuse 6.3A C1 Load C5 C4 C3 L1
INSTRUCTION MANUAL
12. 使用測定機器 List of equipment used
EQUIPMENT USED MANUFACTURER MODEL NO. 1 DIGITAL STORAGE OSCILLOSCOPE YOKOGAWA ELECT. DL1740 / DL1740E 2 DIGITAL MULTIMETER AGILENT 34970A
3 CURRENT PROBE YOKOGAWA ELECT. 701932 4 CURRENT PROBE AGILENT N2774A 5 SHUNT RESISTER YOKOGAWA ELECT. 2215
6 DYNAMIC DUMMY LOAD TAKASAGO FK200L / FK600L
7 CVCF TAKASAGO AA2000XG
8 CVCF NF ES1000S / ES10000S
9 DC POWER SUPPLY TDKLambda Z+1008 10 CONTROLLED TEMP. CHAMBER ESPEC SU261 / SU641
11 ROHDE & SCHWARZ ESCI
12 PRE AMP. SONOMA 310N
13 AMN KIKUSUI KNW242C
14 ANTENNA SCHWARZBECK BBA9106/VHA9103 15 ANTENNA SCHWARZBECK UHALP9107
INSTRUCTION MANUAL
2.
Characteristics
21. 静特性 Steady state characteristics(1) 入力・負荷・温度変動 Regulation line and load, Temperature drift
3.3V
1. Regulation line and load Condition Ta : 25ºCIo \ Vin 18VDC 24VDC 48VDC 76VDC Line regulation 0% 3.303V 3.303V 3.303V 3.303V 0mV
50% 3.299V 3.299V 3.299V 3.298V 1mV 100% 3.295V 3.295V 3.295V 3.294V 1mV
8mV 8mV 8mV 9mV
0.242% 0.242% 0.242% 0.273%
2. Temperature drift Conditions Vin : 48 VDC
Io : 100 % Ta 40oC 25oC 85oC Temperature stability
Vo 3.279V 3.295V 3.289V 16mV 0.485%
5V
1. Regulation line and load Condition Ta : 25ºCIo \ Vin 18VDC 24VDC 48VDC 76VDC Line regulation 0% 5.012V 5.013V 5.013V 5.012V 1mV
50% 5.009V 5.010V 5.009V 5.009V 1mV 100% 5.006V 5.007V 5.006V 5.005V 2mV
6mV 6mV 7mV 7mV
0.120% 0.120% 0.140% 0.140%
2. Temperature drift Conditions Vin : 48 VDC
Io : 100 % Ta 40oC 25oC 85oC Temperature stability
Vo 4.975V 5.006V 5.006V 31mV 0.620%
12V
1. Regulation line and load Condition Ta : 25ºCIo \ Vin 18VDC 24VDC 48VDC 76VDC Line regulation 0% 12.111V 12.112V 12.112V 12.111V 1mV
50% 12.109V 12.110V 12.109V 12.106V 4mV 100% 12.108V 12.109V 12.108V 12.107V 2mV
3mV 3mV 4mV 5mV
0.025% 0.025% 0.033% 0.042%
2. Temperature drift Conditions Vin : 48 VDC
Io : 100 % Ta 40oC 25oC 85oC Temperature stability
Vo 12.069V 12.108V 12.115V 46mV 0.383%
15V
1. Regulation line and load Condition Ta : 25ºCIo \ Vin 18VDC 24VDC 48VDC 76VDC Line regulation 0% 15.116V 15.117V 15.118V 15.117V 2mV
50% 15.114V 15.115V 15.115V 15.112V 3mV 100% 15.113V 15.115V 15.114V 15.113V 2mV
3mV 2mV 4mV 5mV
0.020% 0.013% 0.027% 0.033%
2. Temperature drift Conditions Vin : 48 VDC
Io : 100 % Load regulation Load regulation 0.000% 0.030% 0.030% 0.020% 0.013% 0.020% 0.013% Load regulation Load regulation 0.020% 0.040% 0.008% 0.033% 0.017%
INSTRUCTION MANUAL
(2) 出力電圧・出力リップルノイズ電圧 対 入力電圧
Output voltage and Output ripple and noise voltage vs. Input voltage
Conditions Io : 100 % Ta : 40 ºC : 25 ºC : 85 ºC
3.3V
5V
0
20
40
60
80
4.7
4.8
4.9
5.0
5.1
10
20
30
40
50
60
70
80
O
ut
pu
t r
ip
pl
e
an
d
no
is
e
vo
lt
ag
e
(m
V
)
O
ut
pu
t v
ol
ta
ge
(
V
)
Input voltage (V)
Output voltage
Output ripple and noise voltage
0
20
40
60
80
3.0
3.1
3.2
3.3
3.4
10
20
30
40
50
60
70
80
O
ut
pu
t r
ip
pl
e
an
d
no
is
e
vo
lt
ag
e
(m
V
)
O
ut
pu
t v
ol
ta
ge
(
V
)
Input voltage (V)
Output voltage
INSTRUCTION MANUAL
(2) 出力電圧・出力リップルノイズ電圧 対 入力電圧
Output voltage and Output ripple and noise voltage vs. Input voltage
Conditions Io : 100 % Ta : 40 ºC : 25 ºC : 85 ºC
12V
15V
0
20
40
60
80
14.6
14.8
15.0
15.2
15.4
10
20
30
40
50
60
70
80
O
ut
pu
t r
ip
pl
e
an
d
no
is
e
vo
lt
ag
e
(m
V
)
O
ut
pu
t v
ol
ta
ge
(
V
)
Input voltage (V)
Output voltage
Output ripple and noise voltage
0
20
40
60
80
11.4
11.6
11.8
12.0
12.2
10
20
30
40
50
60
70
80
O
ut
pu
t r
ip
pl
e
an
d
no
is
e
vo
lt
ag
e
(m
V
)
O
ut
pu
t v
ol
ta
ge
(
V
)
Input voltage (V)
Output voltage
INSTRUCTION MANUAL
(3) 入力電流・効率 対 出力電流 Input current and Efficiency vs. Output current
Conditions Vin : 18 VDC : 24 VDC : 48 VDC : 76 VDC Ta : 25 ºC
3.3V
5V
40
50
60
70
80
90
100
0
1
2
3
0
20
40
60
80
100
E
ff
ic
ie
nc
y
(%
)
In
pu
t c
ur
re
nt
(
A
)
Output current (%)
Efficiency
Iin
(6A)
40
50
60
70
80
90
100
0
1
2
3
0
20
40
60
80
100
E
ff
ic
ie
nc
y
(%
)
In
pu
t c
ur
re
nt
(
A
)
Output current (%)
Efficiency
Iin
(7A)
INSTRUCTION MANUAL
(3) 入力電流・効率 対 出力電流 Input current and Efficiency vs. Output current
Conditions Vin : 18 VDC : 24 VDC : 48 VDC : 76 VDC Ta : 25 ºC
12V
15V
40
50
60
70
80
90
100
0
1
2
3
0
20
40
60
80
100
E
ff
ic
ie
nc
y
(%
)
In
pu
t c
ur
re
nt
(
A
)
Output current (%)
Efficiency
Iin
(2A)
40
50
60
70
80
90
100
0
1
2
3
0
20
40
60
80
100
E
ff
ic
ie
nc
y
(%
)
In
pu
t c
ur
re
nt
(
A
)
Output current (%)
Efficiency
Iin
(2.5A)
INSTRUCTION MANUAL
(4) 効率 対 入力電圧 Efficiency vs. Input voltage
Conditions Io : 50 % : 100 % Ta : 25 ºC
3.3V
5V
70
75
80
85
90
95
100
10
20
30
40
50
60
70
80
E
ff
ic
ie
nc
y
(%
)
Input voltage (V)
70
75
80
85
90
95
100
10
20
30
40
50
60
70
80
E
ff
ic
ie
nc
y
(%
)
Input voltage (V)
INSTRUCTION MANUAL
(4) 効率 対 入力電圧 Efficiency vs. Input voltage
Conditions Io : 50 % : 100 % Ta : 25 ºC
12V
15V
70
75
80
85
90
95
100
10
20
30
40
50
60
70
80
E
ff
ic
ie
nc
y
(%
)
Input voltage (V)
70
75
80
85
90
95
100
10
20
30
40
50
60
70
80
E
ff
ic
ie
nc
y
(%
)
Input voltage (V)
INSTRUCTION MANUAL
(5) 起動・遮断電圧特性 Start up and Drop out voltage characteristics
Conditions Io : 100 % Conditions Io : 100 % Ta : 25 ºC Ta : 25 ºC
3.3V
3.3V
5V
5V
出力電圧 対 入力電圧 Output voltage vs. Input voltage
入力電流 対 入力電圧 Input current vs. Input voltage
0
1
2
3
4
5
6
10
12
14
16
18
20
22
O
ut
pu
t v
ol
ta
ge
(
V
)
Input voltage (V)
Input voltage range
0
1
2
3
10
12
14
16
18
20
22
In
pu
t c
ur
re
nt
(
A
)
Input voltage (V)
Input voltage range
0
1
2
3
4
10
12
14
16
18
20
22
O
ut
pu
t v
ol
ta
ge
(
V
)
Input voltage (V)
Input voltage range
0
1
2
3
10
12
14
16
18
20
22
In
pu
t c
ur
re
nt
(
A
)
Input voltage (V)
INSTRUCTION MANUAL
(5) 起動・遮断電圧特性 Start up and Drop out voltage characteristics
Conditions Io : 100 % Conditions Io : 100 % Ta : 25 ºC Ta : 25 ºC
12V
12V
15V
15V
出力電圧 対 入力電圧 Output voltage vs. Input voltage
入力電流 対 入力電圧 Input current vs. Input voltage
0
5
10
15
20
10
12
14
16
18
20
22
O
ut
pu
t v
ol
ta
ge
(
V
)
Input voltage (V)
Input voltage range
0
1
2
3
10
12
14
16
18
20
22
In
pu
t c
ur
re
nt
(
A
)
Input voltage (V)
Input voltage range
0
2
4
6
8
10
12
14
10
12
14
16
18
20
22
O
ut
pu
t v
ol
ta
ge
(
V
)
Input voltage (V)
Input voltage range
0
1
2
3
10
12
14
16
18
20
22
In
pu
t c
ur
re
nt
(
A
)
Input voltage (V)
INSTRUCTION MANUAL
22. 待機電力特性 Standby power characteristics
Condition Ta : 25 ºC
3.3V
5V
0.0
0.5
1.0
1.5
2.0
10
20
30
40
50
60
70
80
S
ta
nd
by
p
ow
er
(
W
)
Input voltage (V)
Io:0%
Remote Control:OFF
0.0
0.5
1.0
1.5
2.0
10
20
30
40
50
60
70
80
S
ta
nd
by
p
ow
er
(
W
)
Input voltage (V)
Io:0%
Remote Control:OFF
INSTRUCTION MANUAL
22. 待機電力特性 Standby power characteristics
Condition Ta : 25 ºC
12V
15V
0.0
0.5
1.0
1.5
2.0
10
20
30
40
50
60
70
80
S
ta
nd
by
p
ow
er
(
W
)
Input voltage (V)
Io:0%
Remote Control:OFF
0.0
0.5
1.0
1.5
2.0
10
20
30
40
50
60
70
80
S
ta
nd
by
p
ow
er
(
W
)
Input voltage (V)
Io:0%
Remote Control:OFF
INSTRUCTION MANUAL
23. 通電ドリフト特性 Warm up voltage drift characteristics
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
3.3V
5V
0.4
0.2
0.0
0.2
0.4
0
1
2
3
4
5
6
7
8
O
ut
pu
t v
ol
ta
ge
d
ri
ft
(
%
)
Time (hours)
0.4
0.2
0.0
0.2
0.4
0
1
2
3
4
5
6
7
8
O
ut
pu
t v
ol
ta
ge
d
ri
ft
(
%
)
Time (hours)
INSTRUCTION MANUAL
23. 通電ドリフト特性 Warm up voltage drift characteristics
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
12V
15V
0.4
0.2
0.0
0.2
0.4
0
1
2
3
4
5
6
7
8
O
ut
pu
t v
ol
ta
ge
d
ri
ft
(
%
)
Time (hours)
0.4
0.2
0.0
0.2
0.4
0
1
2
3
4
5
6
7
8
O
ut
pu
t v
ol
ta
ge
d
ri
ft
(
%
)
Time (hours)
INSTRUCTION MANUAL
24. 過電流保護特性 Over current protection (OCP) characteristics
Conditions Vin : 18 VDC Conditions Vin : 48 VDC : 24 VDC Ta : 40 ºC : 48 VDC 25 ºC : 76 VDC 85 ºC Ta : 25 ºC
3.3V
3.3V
5V
5V
入力電圧依存性 Input voltage dependence周囲温度依存性
Ambient temperature dependence
0
1
2
3
4
0
50
100
150
200
O
ut
pu
t v
ol
ta
ge
(
V
)
Output current (%)
0
1
2
3
4
0
50
100
150
200
O
ut
pu
t v
ol
ta
ge
(
V
)
Output current (%)
0
1
2
3
4
5
6
0
50
100
150
200
O
ut
pu
t v
ol
ta
ge
(
V
)
Output current (%)
0
1
2
3
4
5
6
0
50
100
150
200
O
ut
pu
t v
ol
ta
ge
(
V
)
Output current (%)
INSTRUCTION MANUAL
24. 過電流保護特性 Over current protection (OCP) characteristics
Conditions Vin : 18 VDC Conditions Vin : 48 VDC : 24 VDC Ta : 40 ºC : 48 VDC 25 ºC : 76 VDC 85 ºC Ta : 25 ºC
12V
12V
15V
15V
入力電圧依存性 Input voltage dependence周囲温度依存性
Ambient temperature dependence
0
2
4
6
8
10
12
14
0
50
100
150
200
O
ut
pu
t v
ol
ta
ge
(
V
)
Output current (%)
0
2
4
6
8
10
12
14
0
50
100
150
200
O
ut
pu
t v
ol
ta
ge
(
V
)
Output current (%)
0
5
10
15
20
0
50
100
150
200
O
ut
pu
t v
ol
ta
ge
(
V
)
Output current (%)
0
5
10
15
20
0
50
100
150
200
O
ut
pu
t v
ol
ta
ge
(
V
)
Output current (%)
INSTRUCTION MANUAL
25. 出力立ち上がり・立ち下がり特性 Output rise and fall characteristics
Conditions Vin : 48 VDC Io : 0 % Ta : 25 ºC
3.3V
5V
Vin : 20V/DIV Vo : 1V/DIV Vin : 20V/DIV Vo : 1V/DIV
50ms/DIV 2s/DIV
Vin : 20V/DIV Vo : 2V/DIV Vin : 20V/DIV Vo : 2V/DIV
50ms/DIV 2s/DIV Vo → Vin → GND → GND → Vo → Vin → GND → GND →
INSTRUCTION MANUAL
25. 出力立ち上がり・立ち下がり特性 Output rise and fall characteristics
Conditions Vin : 48 VDC Io : 0 % Ta : 25 ºC
12V
15V
Vin : 20V/DIV Vo : 5V/DIV Vin : 20V/DIV Vo : 5V/DIV
50ms/DIV 2s/DIV
Vin : 20V/DIV Vo : 5V/DIV Vin : 20V/DIV Vo : 5V/DIV
50ms/DIV 2s/DIV Vo → Vin → GND → GND → Vo → Vin → GND → GND →
INSTRUCTION MANUAL
25. 出力立ち上がり・立ち下がり特性 Output rise and fall characteristics
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
3.3V
5V
Vin : 20V/DIV Vo : 1V/DIV Vin : 20V/DIV Vo : 1V/DIV
50ms/DIV 1ms/DIV
Vin : 20V/DIV Vo : 2V/DIV Vin : 20V/DIV Vo : 2V/DIV
50ms/DIV 1ms/DIV Vo → Vin → GND → GND → Vo → Vin → GND → GND →
INSTRUCTION MANUAL
25. 出力立ち上がり・立ち下がり特性 Output rise and fall characteristics
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
12V
15V
Vin : 20V/DIV Vo : 5V/DIV Vin : 20V/DIV Vo : 5V/DIV
50ms/DIV 1ms/DIV
Vin : 20V/DIV Vo : 5V/DIV Vin : 20V/DIV Vo : 5V/DIV
50ms/DIV 1ms/DIV Vo → Vin → GND → GND → Vo → Vin → GND → GND →
INSTRUCTION MANUAL
25. 出力立ち上がり・立ち下がり特性 (リモートON/OFFコントロール時) Output rise and fall characteristics with REMOTE ON/OFF CONTROL
Conditions Vin : 48 VDC Io : 0 % Ta : 25 ºC
3.3V
5V
Vrc : 5V/DIV Vo : 1V/DIV Vrc : 5V/DIV Vo : 1V/DIV
50ms/DIV 2s/DIV
Vrc : 5V/DIV Vo : 2V/DIV Vrc : 5V/DIV Vo : 2V/DIV
50ms/DIV 2s/DIV Vo → Vrc → GND → GND → Vo → Vrc → GND → GND →
INSTRUCTION MANUAL
25. 出力立ち上がり・立ち下がり特性 (リモートON/OFFコントロール時) Output rise and fall characteristics with REMOTE ON/OFF CONTROL
Conditions Vin : 48 VDC Io : 0 % Ta : 25 ºC
12V
15V
Vrc : 5V/DIV Vo : 5V/DIV Vrc : 5V/DIV Vo : 5V/DIV
50ms/DIV 2s/DIV
Vrc : 5V/DIV Vo : 5V/DIV Vrc : 5V/DIV Vo : 5V/DIV
50ms/DIV 2s/DIV Vo → Vrc → GND → GND → Vo → Vrc → GND → GND →
INSTRUCTION MANUAL
25. 出力立ち上がり・立ち下がり特性 (リモートON/OFFコントロール時) Output rise and fall characteristics with REMOTE ON/OFF CONTROL
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
3.3V
5V
Vrc : 5V/DIV Vo : 1V/DIV Vrc : 5V/DIV Vo : 1V/DIV
50ms/DIV 500μs/DIV
Vrc : 5V/DIV Vo : 2V/DIV Vrc : 5V/DIV Vo : 2V/DIV
50ms/DIV 500μs/DIV Vo → Vrc → GND → GND → Vo → Vrc → GND → GND →
INSTRUCTION MANUAL
25. 出力立ち上がり・立ち下がり特性 (リモートON/OFFコントロール時) Output rise and fall characteristics with REMOTE ON/OFF CONTROL
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
12V
15V
Vrc : 5V/DIV Vo : 5V/DIV Vrc : 5V/DIV Vo : 5V/DIV
50ms/DIV 500μs/DIV
Vrc : 5V/DIV Vo : 5V/DIV Vrc : 5V/DIV Vo : 5V/DIV
50ms/DIV 500μs/DIV Vo → Vrc → GND → GND → Vo → Vrc → GND → GND →
INSTRUCTION MANUAL
26. 過渡応答（負荷急変）特性 Dynamic load response characteristics
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
3.3V
5V
12V
15V
Vo → Io → GND → Vo → Io → GND → Io : 50% ⇔ 100% f = 1kHz Io : 5A/DIV Vo : 0.5V/DIV Load current tr = tf = 100μs 200μs/DIV Load current tr = tf = 100μs 200μs/DIV Io : 50% ⇔ 100% f = 1kHz Io : 2A/DIV Vo : 0.5V/DIV Vo → Io → GND → Vo → Io → GND → Load current tr = tf = 100μs 200μs/DIV Io : 50% ⇔ 100% f = 1kHz Io : 5A/DIV Vo : 0.5V/DIV 200μs/DIV Io : 50% ⇔ 100% f = 1kHz Io : 2A/DIV Vo : 0.5V/DIV Load current tr = tf = 100μsINSTRUCTION MANUAL
27. 入力サージ電流（突入電流）特性 Inrush current characteristics
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
5V
Vin : 20V/DIV Iin : 100A/DIV 10μs/DIV
Iin →
Vin → GND →
INSTRUCTION MANUAL
28. 出力リップル、ノイズ波形 Output ripple and noise waveform
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
3.3V
5V
12V
15V
10mV/DIV 2μs/DIV 10mV/DIV 2μs/DIV
INSTRUCTION MANUAL
29. EMI特性 ElectroMagnetic Interference characteristics (a) 雑音端子電圧 (帰還ノイズ) Conducted Emission Noise
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
3.3V
5V
Vin
+Vin
+Vin
Vin
INSTRUCTION MANUAL
29. EMI特性 ElectroMagnetic Interference characteristics (a) 雑音端子電圧 (帰還ノイズ) Conducted Emission Noise
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
12V
15V
Vin
+Vin
+Vin
Vin
INSTRUCTION MANUAL
29. EMI特性 ElectroMagnetic Interference characteristics (b) 雑音電界強度 (輻射ノイズ) Radiated Emission Noise
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
3.3V
5V
VERTICAL
HORIZONTAL
HORIZONTAL
VERTICAL
INSTRUCTION MANUAL
29. EMI特性 ElectroMagnetic Interference characteristics (b) 雑音電界強度 (輻射ノイズ) Radiated Emission Noise
Conditions Vin : 48 VDC Io : 100 % Ta : 25 ºC
