基本特性数据/使用说明书
Basic Characteristics Data
Basic Characteristics Data
Model
Circuit method
Switching
frequency
[kHz]
Input
current
[A]
Rated
input fuse
Inrush
current
protection
DBS100A
Forward converter
370
1.10 *1
-
-
Material
Single
sided
Series/Parallel
operation availability
Double Series Parallel
sided operation operation
Aluminum
Yes
Yes
PCB/Pattern
Yes
DBS150A
Forward converter
370
1.59 *1
-
-
Aluminum
Yes
Yes
Yes
DBS200B
Forward converter
370
0.99 *1
-
-
Aluminum
Yes
Yes
Yes
DBS400B
Forward converter
370
1.72 *1
-
-
Aluminum
Yes
Yes
Yes
DBS700B
Forward converter
381
2.76 *1
-
-
Aluminum
Yes
Yes
Yes
*1 The value of input current is at rated input and rated load.
DBS
DBS
DBS-10
DBS_E.indd 10
15.6.19 11:42:18 AM
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1
Pin Connection
DBS-12
2
Connection for Standard Use
DBS-12
3
Wiring Input/Output Pin
DBS-12
4
5
6
3.1
Wiring input pin
DBS-12
3.2
Wiring output pin
DBS-13
Function
DBS-14
4.1
Overcurrent protection
DBS-14
4.2
Overvoltage protection
DBS-14
4.3
Thermal detection/Thermal protection
DBS-14
4.4
Inverter operation monitor
DBS-14
4.5
Remote ON/OFF
DBS-15
4.6
Remote sensing
DBS-15
4.7
Adjustable voltage range
DBS-16
4.8
Isolation
DBS-16
Series and Parallel Operation
DBS-17
5.1
Series operation
DBS-17
5.2
Parallel operation/Master-slave operation
DBS-17
5.3
N+1 redundant operation
DBS-17
Implementation Mounting Method
DBS
DBS-18
6.1
Mounting method
DBS-18
6.2
Stress onto the pins
DBS-18
6.3
Cleaning
DBS-18
6.4
Soldering
DBS-18
6.5
Derating
DBS-18
DBS-11
DBS
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2 Connection for
Standard Use
1 Pin Connection
Table 1.1 Pin connection and function
NO.
Pin Connection
-VIN
-DC input
RC1
Remote ON/OFF(Input side)
+VOUT
+DC output
-VOUT
-DC output
CB
Current balance
Reference: 4.5
VB
Voltage balance
4.6
TMP
Thermal detection signal
Fig.2.1 and external components in table2.1.
Adjustment of output voltage
+S
+Remote sensing
-S
-Remote sensing
IOG
Inverter operation monitor
AUX
Auxiliary power supply
FG
Mounting hole(FG)
-VIN
RC1
+VOUT
-VOUT
CB
VB
TMP
RC3
RC2
TRM
+S
-S
IOG
DBS
Avoid applying AC input directly.
It will damage the power supply.
nOperate with the conduction cooling(e.g. heat radiation from the
aluminum base plate to the attached heat sink).
Reference: 6.5
”Derating”
Heatsink
Reference
+S
F1
3.1 ”Wiring input pin”
4.5 ”Remote ON/OFF”
Cin
DC
Noise
input
filter
+VIN
+VOUT
-VIN
-VOUT
RC1 FG
3.2 ”Wiring output pin”
4.3 ”Thermal detection/Thermal protection”
4.5 ”Remote ON/OFF”
4.7 ”Adjustable voltage range”
4.6 ”Remote sensing”
4.4 ”Inverter operation monitor”
4.5 ”Remote ON/OFF”
FG
3.1 ”Wiring input pin”
TRM +S -S IOG AUX
Load
-S
Fig.2.1 Connection for standard use
5.2 ”Parallel operation/Master-slave operation”
AUX
+
Co
CY
CB VB TMP RC3 RC2
RC1
-VIN
”Remote ON/OFF”
”Remote sensing”
nThe DBS Series handles only the DC input.
Remote ON/OFF(output side)
Pin Connection
nShort the following pins to turn on the power supply.
-VIN RC1, +VOUT +S, -VOUT -S
TRM
+VIN
DBS
nIn order to use the power supply, it is necessary to wire as shown in
+DC input
RC2
NO.
Function
+VIN
RC3
Instruction Manual
No.
1
2
3
4
5
6
Table 2.1 External components
Symbol
component
Reference
F1 Input fuse
3.1 (1) ”External fuse”
CY Primary decoupling capacitor 3.1 (2) ”Noise filter/
Decoupling capacitor”
Noise filter
Cin External capacitor on the input side 3.1 (3) ”External capacitor on the input side”
Co External capacitor on the output side 3.2 ”Wiring output pin”
Heatsink
6.5 ”Derating”
3 Wiring Input/Output Pin
-VOUT
3.1 Wiring input pin
+VIN
+VOUT
4-FG
Fig.1.1 Pin connection(bottom view)
(1) External fuse
nFuse is not built-in on input side. In order to protect the unit, install the normal blow type fuse on input side.
nWhen the input voltage from a front end unit is supplied to multiple units, install the normal blow type fuse in each unit.
Table 3.1 Recommended fuse(Normal-blow type)
Model
Rated current
DBS-12
DBS100A / 150A DBS200B DBS400B DBS700B
5A
3A
5A
10A
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Range of input voltage
(2) Noise filter/Decoupling capacitor
nInstall an external noise filter and a decoupling capacitor CY for
Input current [A]
low line-noise and for stable operation of the power supply.
nInstall a correspondence filter, if a noise standard meeting is required or if the surge voltage may be applied to the unit.
nInstall a primary decoupling capacitor CY, with more than 470pF,
Ip
near the input pins(within 50mm from the pins).
nWhen the total capacitance of the primary decoupling capacitor is
more than 8800pF, the nominal value in the specification may not
Input voltage [V]
be met by the Hi-Pot test between input and output.
Fig.3.2 Input current characteristics
In this case, it is that a capacitor should be installed between output and FG.
(5) Operation with AC input
nThe DBS series handles only for the DC input.
(3) External capacitor on the input side
nInstall an external capacitor Cin between +VIN and -VIN input pins
for low line-noise and for stable operation of the power supply.
A front end unit(AC/DC unit) is required when the DBS series is
operated with AC input.
DBS100A / 150A:more than 47 F
(6) Reverse input voltage protection
DBS200B:more than 0.1 F
nAvoid the reverse polarity input voltage. It will break the power
DBS400B / 700B:more than 0.33 F
supply.
nWhen the line impedance is high or the input voltage rise quickly
at start-up(less than 10 s), install a capacitor Cin between +VIN
It is possible to protect the unit from the reverse input voltage by
installing an external diode.
DC
and -VIN input pins(within 50mm from pins).
YES
DBS200B:more than 22 F
DBS
Load
DBS
Load
DBS
Load
DBS400B / 700B:more than 47 F
AC
NO
(4) Input voltage rang/Input current range
nThe specification of input ripple voltage is shown as below.
AC
Ripple voltage DBS100A / 150A:less than 10Vp-p
AC
/DC
YES
DBS200B / 400B / 700B:less than 20Vp-p
DBS
nMake sure that the voltage fluctuation, including the ripple voltFig.3.3 Use with AC input
age, will not exceed the input voltage range.
nUse a front end unit with enough power, considering the start-up
(a)
current Ip of this unit.
(b)
Ripple
voltage
DC IN
Input voltage range
Input voltage [V]
+VIN
-VIN
+VIN
DC IN
-VIN
Fig.3.4 Reverse input voltage protection
DBS
3.2 Wiring output pin
time
Fig.3.1 Input voltage ripple
t
nInstall an external capacitor Co between +VOUT and -VOUT pins
for stable operation of the power supply.
Recommended capacitance of Co is shown in Table 3.2.
nSelect the high frequency type capacitor. Output ripple and startup waveform may be influenced by ESR ESL of the capacitor
and the wiring impedance.
nInstall a capacitor Co near the output pins(within 100mm from the
pins).
DBS-13
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nWhen the output voltage drops at overcurrent, the average output
Table 3.2 Recommended capacitance Co [ F]
Model
Output voltage (V)
DBS100A
DBS150A
DBS200B
DBS400B
2200
6800
2200
4700
2200
4700
1000
2200
3.3
5
2200
7.5
12
1000
13.8
1000
15
1000
DBS700B
nThe overvoltage protection circuit is built-in. The DC input should
2200
470
28
The recovery time varies depending on input voltage and input
820
2200
820
2200
36
2200
48
1000
When using power supply at -20
tance becomes 3 times.
or less, the recommended capaci-
nThe specified ripple and ripple noise are measured by the method
introduced in Fig.3.5.
Measuring board
S
2200pF
VIN
DC
input
capacity.
Remarks:
Please note that devices inside the power supply might fail when
voltage more than rated output voltage is applied to output terminal of the power supply. This could happen when the customer
tests the overvoltage performance of the unit.
100mm
DBS100A/150A/200B/400B
FG
be shut down if overvoltage protection is in operation. The minimum interval of DC recycling for recovery is for 2 to 3 minutes( ).
2200
24
current is reduced by intermittent operation of power supply.
4.2 Overvoltage protection
2200
18
Instruction Manual
nThermal detection(TMP) and protection circuit are built-in.
VOUT
Cin
nWhen overheat is detected, thermal detection signal(TMP) turns
Co
RC1
4.3 Thermal detection/Thermal protection
0.
F
Load
”L” from ”H”.
TMP circuit is designed as shown in Fig.4.1, and specification is
VIN VOUT
shown as in Table 4.1.
2200pF
nWhen overheating continues after detecting the TMP signal, the
S
FG
output will be shut down by the thermal protection circuit.
Oscilloscope
BW:20MHz
When this function comes into effect, input voltage should be shut
off, and eliminate all possible causes of overheat condition and
DBS700B
DBS
FG
lower the temperature of the unit to the normal level.
100mm
Measuring board
S
4.4 Inverter operation monitor
2200pF
VIN
DC
input
VOUT
Cin
nBy using the inverter operation monitor(IOG), malfunction of the
Co
RC1
0.
F
Load
inverter can be monitored.
When inverter operation is in following mode
VIN VOUT
2200pF
FG
Oscilloscope
BW:100MHz
DBS
, IOG signal
IOG circuit is designed as shown in Fig.4.1 and specification is
S
R
or
turns ”H” from ”L” within 1 second.
1.5m 50
Coaxial Cable
C R=50
C=0.01 F
Fig.3.5 Method of Measuring Output Ripple and Ripple Noise
shown in Table 4.1.
Malfunction of inverter.
The output voltage drops by 60% or less of the rated voltage.
When output wattage is decreased radically to less than 10%
of rated wattage.
4 Function
4.1 Overcurrent protection
22k
6V typ
TMP
or
IOG
nOvercurrent protection is built-in and comes into effect at over
-S
105% of the rated current.
Overcurrent protection prevents the unit from short circuit and
overcurrent condition. The unit automatically recovers when the
fault condition is cleared.
DBS-14
Fig.4.1 TMP, IOG circuit
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Table 4.1 Specification of TMP, IOG
No.
Item
(a)
TMP
IOG
Normal operation ”H”
Normal operation ”L”
Overheat detection ”L”
Malfunction of inverter ”H”
(b)
2.2k
AUX
150
RC3
1
Function
2
Base pin
-S
RC2
3
Level voltage ”L”
0.5Vmax at 5mA
OFF
4
Level voltage ”H”
5V typ
5
Maximum sink current
10mA max
6
Maximum applicable voltage
35V max
12V
typ
Instruction Manual
12V
typ
(c)
2.2k
AUX
150
RC3
POWER
ON
-S
12V
typ
2.2k
AUX
150
RC3 POWER
ON OFF
RC2
POWER
OFF ON
RC2
-S
-S
Fig.4.3 RC2 RC3 connection example
4.5 Remote ON/OFF
nMake sure that sink current of output side remote ON/OFF circuit
nRemote ON/OFF circuit is built-in on both side of input(RC1) and
should be less than 12mA.
output(RC2 RC3).
Output can be controlled by either circuit.
(3) Auxiliary power supply for remote ON/OFF(AUX)
nAUX is built in for operating the output side remote ON/OFF
(1) Input side remote ON/OFF(RC1)
(RC2 RC3).
nThe ground pin of input side remote ON/OFF circuit is ”-VIN” pin.
If AUX is not used for RC2 RC3, AUX can be used for IOG or
Between RC1 and -VIN: Output voltage is ON at ”Low” level or
TMP signal output by opto coupler.
nShort protection resistance(2.2k ) is built in.
short circuit(0 - 1.0V).
Between RC1 and -VIN: Output voltage is OFF at ”High” level or
Output voltage decreases as the output current increases.
open circuit(3.5 - 7.0V).
(AUX voltage at open circuit: 15V max)
When RC1 is ”Low” level, fan out current is 0.3mA typ. When Vcc
is applied, use 3.5
Vcc
4.6 Remote sensing
7V.
When remote ON/OFF function is not used, please short between
(1) When the remote sensing function is not in use
RC1 and -VIN.
nWhen the remote sensing function is not in use, it is necessary to
nWhen the DPA DPF series(Power factor & harmonic corrector
module) is used as a front end unit, connect between RC1 pin
and PR pin on DPA(between RC1 pin and ENA pin on DPF) for
confirm that pins are shorted between +S & +VOUT and between
-S & -VOUT.
nWire between +S & +VOUT and between -S & -VOUT as short as
possible.
the start-up timing of the DBS200B/400B/700B control.
Loop wiring should be avoided.
This power supply might become unstable by the noise coming
Vcc
DBS
from poor wiring.
Rc
RC1
(2) When the remote sensing function is in use
or
-VIN
Transistor
nTwisted-pair wire or shield wire should be used for sensing wire.
or
IC
Relay
nThick wire should be used for wiring between the power supply
and a load.
Fig.4.2 RC1 connection example
Line drop should be less than 0.5V.
Voltage between +VOUT and -VOUT should remain within the out-
(2) Output side remote ON/OFF(RC2 RC3)
put voltage adjustment range.
nIf the sensing patterns are short, heavy-current is drawn and the
Table 4.2 Specification of output side remote ON/OFF(RC2 RC3)
No.
RC2 RC3
Item
1
Wiring method
Fig.4.3 (a)
Fig.4.3 (b)
Fig.4.3 (c)
2
Function
3
Base pin
4
Power ON
Open
(0.1mA max)
Short
(0.5V max)
5
Power OFF
Short
(3mA min)
Open
(0.1mA max)
Power ON ”H” Power ON ”H” Power ON ”L”
RC2
-S
pattern may be damaged.
The pattern disconnection can be prevented by installing the protection parts as close as a load.
-S and RC2
DBS-15
DBS
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Table 4.3 Recommended value of external potentiometer & resistor
No. Adjustable range [%] Number of unit
+S
+VOUT
OUT
Single
1
+
Co
5
2
Load
-VOUT
Fig.4.4 Connection when the remote sensing is not in use
36k
1k
36k
2 sets
5k
3 sets
6
R2
24k
Single
10
5
Short at pin root
5k
3 sets
4
R1
75k
2 sets
3
-S
External parts value [ ]
VR1
18k
910
12k
(2) Adjusting method by applying external voltage
Wire as close as possible
nBy applying the voltage externally at TRM, output voltage become
adjustable.
+S
nOutput voltage is calculated by the following equation.
+VOUT
+
Co
OUT
(Output voltage)
Load
-VOUT
= (Applied voltage externally)
(Rated output voltage)
-S
nThe output adjustment range for DBS700B is shown in Fig.4.7.
4.7 Adjustable voltage range
nOutput voltage is adjustable by the external potentiometer or by
applied voltage externally.
Output Voltage [%]
Fig.4.5 Connection when the remote sensing is in use
The adjustable range is 60 - 110% of the rated output voltage.
nWhen the output voltage adjustment is used, note that the
DBS
105
100
60
0
0
250
200V
Input Voltage [V]
Fig.4.7 DBS700B Output Voltage Adjustment Range
overvoltage protection circuit operates when the output voltage
4.8 Isolation
sets too high.
nFor a receiving inspection, such as Hi-Pot test, gradually in-
(1) Adjusting method by external resistor
crease(decrease) the voltage for a start(shut down). Avoid using
nBy connecting the external potentiometer(VR1) and resistors(R1,
Hi-Pot tester with the timer because it may generate voltage a
R2), output voltage becomes adjustable, as shown in Fig.4.6, recommended external parts are shown in Table 4.3.
nThe wiring to the potentiometer should be as short as possible.
The temperature coefficient becomes worse, depending on the
type of a resistor and potentiometer. Following parts are recommended for the power supply.
Resistor
Metal film type, coefficient of less than 100ppm/
Potentiometer Cermet type, coefficient of less than 300ppm/
nWhen the output voltage adjustment is not used, open the TRM
DBS
110
pin and VB pin respectively.
+VOUT
+S
VB
Control Amp.
of rated
voltage
-
RA
15k
+
RB
10k
Reference
voltage 2.5V
TRM R1
-S
-VOUT
Fig.4.6 Output voltage control circuit
DBS-16
R2
VR1
few times higher than the applied voltage, at ON/OFF of a timer.
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5 Series and Parallel
Operation
Instruction Manual
+VOUT
+S
VB
TRM
CB
-S
R2
R1
VR1
+
Load
Co
-VOUT
5.1 Series operation
The output voltage rises
nSeries operation is available by connecting the outputs of two or
more power supplies, as shown below. Output current in series connection should be lower than the lowest rated current in each unit.
+VOUT
+S
VB
TRM
CB
-S
when VR1 is adjusted
for the resistance
+
Co
between
and
to
lower.
-VOUT
(a)
Power
supply
Load
+VOUT
+S
VB
TRM
CB
-S
Power
supply
+
Co
-VOUT
(b)
Fig.5.2 Examples of parallel operation
Load
Power
supply
nWhen output voltage adjustment is not in use. TRM wiring, R1,
R2 and VR are not necessary.
Load
nThick wire should be used for wiring between the power supply
Power
supply
and load, and line drop should be less than 0.3V.
nWhen the output-line impedance is high, the power supply is become unstable.
Fig.5.1 Examples of series operation
Use same length and thickness(width) wire(pattern) for the current balance improvement.
5.2 Parallel operation/Master-slave operation
nParallel operation is available by connecting the units as shown in
Fig.5.2.
nAs variance of output current drew from each power supply is
maximum 10%, the total output current must not exceed the
value determined by the following equation.
(number of unit)
nWhen the number of the units in parallel operation increases, input
DBS
current increases. Adequate wiring design for input circuitry such as
circuit pattern, wiring and current for equipment is required.
nConnect the sensing line and the power line by one point after
connecting each power supply’s sensing pins(+S, -S). In multiple
operation, sensing wires should be connected between each
units for the muster connection to a load.
(Output current in parallel operation)
=(the rated current per unit)
nConnect each input pin for the lowest possible impedance.
0.9
When the number of units in parallel operation increases, input
current increase at the same time. Adequate wiring design for input circuitry is required, such as circuit pattern, wiring and current
capacity for equipment.
In parallel operation, the maximum operative number of units is 11.
nOutput current should be 10% or more of the total of the rated output current in parallel operation. If less than 10%, the IOG signal
might become unstable, and output voltage slightly increasing
(max5%).
nIOG signal might be unstable for one second when the units are
turned on in parallel operation.
5.3 N+1 redundant operation
nIt is possible to set N+1 redundant operation for improving reliability of power supply system.
nPurpose of redundant operation is to ensure stable operation in
the event of single power supply failure.
Since extra power supply is reserved for the failure condition, so
total power of redundant operation is equal to N-1.
DBS-17
DBS
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6 Implementation
Mounting Method
A
nThe unit can be mounted in any direction. When two or more
A
B part
Less than
9.8N(1kgf)
Less than
29.4N(3kgf)
Less than
9.8N(1kgf)
Less than 9.8N(1kgf)
Less than 29.4N(3kgf)
power supplies are used side by side, position them with proper
intervals to allow enough air ventilation. Aluminum base plate tem-
B
A part
Less than
29.4N(3kgf)
6.1 Mounting method
Instruction Manual
Fig.6.2 Stress onto the pins
perature around each power supply should not exceed the tem-
6.3 Cleaning
perature range shown in derating curve.
nClean the product with a brush. Prevent liquid from getting into
nAvoid placing the DC input line pattern lay out underneath the
unit, it will increase the line conducted noise. Make sure to leave
an ample distance between the line pattern lay out and the unit.
the product.
Do not soak the product into liquid.
nDo not stick solvent to a name plate or a resin case.
Also avoid placing the DC output line pattern underneath the unit
(If solvent sticks to a name plate or a resin case, it will cause to
because it may increase the output noise. Lay out the pattern
change the color of the case or to fade letters on name plate
away from the unit.
away.)
nHigh-frequency noise radiates directly from the unit to the atmo-
nAfter cleaning, dry them enough.
sphere. Therefore, design the shield pattern on the printed circuit
6.4 Soldering
board and connect its one to FG.
nFlow soldering
The shield pattern prevents noise radiation.
nSoldering iron
Shield pattern
RC1
-VIN
+VIN
-VOUT
Shield pattern
+VOUT
: 260
less than 15 seconds.
DC IN/DC OUT/RC1 : 450
less than 5 seconds.
Signal pins
less than 3 seconds(less than 20w).
: 350
6.5 Derating
nUse with the conduction cooling(e.g. heat radiation by conduction
from the aluminum base plate to the attached heat sink).
Fig.6.3 shows the derating curve based on the aluminum base
DBS
plate temperature. In the hatched area, the specification of ripple
Fig.6.1 Shield pattern lay out(bottom view)
6.2 Stress onto the pins
nWhen too much stress is applied to the pins of the power supply,
the internal connection may be weakened.
and ripple noise is different from other areas.
nIt is necessary to note thermal fatigue life by power cycle.
Please reduce the temperature fluctuation range as much as possible when the up and down of temperature are frequently generated.
Contact for more information on cooling methods.
As shown in Fig.6.2 avoid applying stress of more than 29.4N(3kgf)
100
the signal pins(B part).
DBS
nThe pins are soldered on PCB internally, therefore, do not pull or
bend them with abnormal forces.
nMounting hole diameter of PCB should be 3.5mm to reduce the
stress onto the pins.
nFix the unit on PCB(fixing fittings) by screws to reduce the stress onto
the pins. Be sure to mount the unit first, then solder the unit.
Load factor [%]
on the input pins/output pins(A part) and more than 9.8N(1kgf) to
DBS100,150,200,400
50
DBS700B12,24,28
DBS700B36,48
0
-20
-10
0
10
20
30
40
50
60
Fig.6.3 Derating curve
DBS-18
70
80 85 90
Aluminum base plate temperature Tc [ ]
Tc
Measuring point
100
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