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3 Wiring Input/Output Pin

3.1 Wiring input pin

(1) External fuse

¡

Fuse is not built-in on input side. In order to protect the unit, install 
the normal-blow type fuse on input side.

¡

When 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

CHS12024

CHS30024

CHS40024

Rated current

15A

20A

40A

Model

CHS6048

CHS8048

CHS12048

Rated current

5A

7A

10A

Model

CHS20048/CHS30048 CHS38048/CHS40048 CHS50048/CHS70048

Rated current

15A

20A

30A

(2) External capacitor on the input side

¡

Install an external capacitor Cin, bVIN and -VIN input 
pins for low line-noise and for stable operation of the power sup-
ply.

   

Capacitance 

Refer to Table 2.1

   

Ta = -20 to +85

C

 Electrolytic or Ceramic capacitor

   

Ta = -40 to +85

C

 Ceramic capacitor

¡

Cin is within 50mm for pins.  Make sure that ripple current of Cin 
is less than its rating.

(3) Recommendation for noise-filter

¡

Install an external input filter as shown in Fig.3.1 in order to re-
duce conducted noise.  For details refer to our website technical 
data.

+

Load

+VIN

-VIN

RC

+

FG

DC

input

+VOUT

-VOUT

+S

-S

Fig.3.1 Recommended external input filter

(4) Reverse input voltage protection

¡

Avoid the reverse polarity input voltage.  It will damage the power 
supply.

  It is possible to protect the unit from the reverse input voltage by 

installing an external diode as shown in Fig.3.2.

+VIN

-VIN

DC IN

Fig.3.2 Reverse input voltage protection

2 Connection for Standard Use

¡

In order to use the power supply, it is necessary to wire as shown 
in Fig.2.1.

   

Reference : 3 ”Wiring Input/Output Pin”

   

 

8 ”Derating”

¡

Short the following pins to turn on the power supply.

 -VIN RC, +VOUT +S, -VOUT -S
   

Reference : 4.4 ”Remote ON/OFF”

   

 

4.5 ”Remote sensing”

¡

The CHS series handle only the DC input.

  Avoid applying AC input directly.
  It will damage the power supply.

Cin : External capacitor on the input side

Load

+VIN

Fuse

DC

input

Cin +

RC
-VIN

+VOUT

-VOUT

+S

-S

Fig.2.1 Connection for standard use

Table 2.1 Recommended External capacitor on the input side

Model

CHS12024

CHS30024

CHS40024

Cin

220 F or more

660 F or more

660 F or more

Model

CHS6048

CHS8048

CHS12048

CHS20048

Cin

66 F or more 33 F or more 47 F or more 100 F or more

Model CHS30048/CHS38048/CHS40048/CHS50048

CHS70048

Cin

200 F or more

400 F or more

CHS-31

DC-DC Converters Bus Converter.Power Module Type

Instruction Manual

Содержание CHS12024

Страница 1: ...e converter 180 1 glassfabricbase epoxyresin Multilayer Yes 2 CHS12048 Half bridge converter 200 1 glassfabricbase epoxyresin Multilayer Yes 2 CHS200 Full bridge converter 150 1 glassfabricbase epoxyr...

Страница 2: ...ing Input Output Pin CHS 31 3 1 Wiring input pin 3 2 Wiring output pin CHS 31 CHS 32 5 1 Series operation 5 2 Parallel operation 5 3 Redundancy operation CHS 35 CHS 35 CHS 36 6 1 Mounting method 6 2 A...

Страница 3: ...Pin Connection and function No Pin Connection Function CHS60 CHS80 CHS120 CHS200 CHS300 CHS380 CHS400 CHS500 CHS700 1 1 VIN DC input 2 2 RC Remote ON OFF 3 3 VIN DC input 4 5 0 VOUT DC output 5 6 S R...

Страница 4: ...al data Load VIN VIN RC FG DC input VOUT VOUT S S Fig 3 1 Recommended external input filter 4 Reverse input voltage protection Avoid the reverse polarity input voltage It will damage the power supply...

Страница 5: ...Table 4 1 1 Specification of Remote ON OFF CHS80 CHS200 ON OFF logic Between RC and VIN Output voltage Standard Negative L level 0 0 8V or short ON H level 2 0 7 0V or open OFF Optional R Positive L...

Страница 6: ...Line drop should be less than 0 3V Voltage between VOUT and VOUT should remain within the output voltage adjustment range If the sensing patterns are short heavy current is drawn and the pattern may...

Страница 7: ...oltage becomes adjustable to decrease The external resistor RD is calculated by the following equation a Rated output voltage 10 15V RD 10 22 kW 5 11 b Rated output voltage 24V RD 2 kW 1 VOR VOD VOR V...

Страница 8: ...1 Series operation Series 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 curren...

Страница 9: ...should not exceed the temperature range shown in derating curve Avoid placing the DC input line pattern layout underneath the unit It will increase the line conducted noise Make sure to leave an ample...

Страница 10: ...nd VOUT shown in Fig 6 2 do not exceed the temperatures shown in Fig 6 3 If time or temperature of the reflow soldering goes beyond the conditions reliability of internal components may be compromised...

Страница 11: ...nd the power supply might be damaged if the vacuum pressure is too much to reseal 6 7 Stress to the product CHS series transformer core and choke coil core are attached by glue There is a possibility...

Страница 12: ...36 60V 4Others Vin 60 76V e CHS3804812 CHS3804812H Load factor 100 80 60 40 Temperature of measurement location C 40 20 0 20 0 20 40 60 120 100 80 3 2 1 4 2Option B Vin 60 76V 3Others Vin 36 60V 1Opti...

Страница 13: ...t location CHS200 Temperature measurement location Fig 8 2 5 Temperature measurement location CHS300 Temperature measurement location Fig 8 2 6 Temperature measurement location CHS380 Temperature meas...

Страница 14: ...Fig 8 3 Verify final design by actual temperature measurement Use the temperature measurement location as shown in Fig 8 2 1 to Fig 8 2 10 at 120C or less PWB 12 7mm Measurement point for ambient temp...

Страница 15: ...8 9 Load current vs ambient temperature CHS804812 Vin 48V 40 30 20 10 0 10 20 30 40 50 60 70 80 90 1 2 3 0 5 10 15 20 25 30 1convection cooling 0 2m s 21m s 32m s Load current A Ambient temperature C...

Страница 16: ...2m s Fig 8 21 Load current vs ambient temperature CHS3002415 Vin 24V 40 30 20 10 0 10 20 30 40 50 60 70 80 90 1 2 3 0 5 10 15 20 25 30 1convection cooling 0 2m s 21m s 32m s Load current A Ambient te...

Страница 17: ...ig 8 29 Load current vs ambient temperature CHS4002415 Vin 24V 0 4 8 12 16 20 24 28 32 40 30 20 10 0 10 20 30 40 50 60 70 80 90 1convection cooling 0 2m s 21m s 32m s 1 2 3 Load current A Ambient temp...

Страница 18: ...g 8 30 Load current vs ambient temperature CHS4002424 Vin 24V 40 30 20 10 0 10 20 30 40 50 60 70 80 90 Ambient temperature C 0 5 10 15 20 25 30 35 40 45 1convection cooling 0 2m s 21m s 32m s 1 2 3 Lo...

Страница 19: ...n a tray Fig 9 1 to Fig 9 3 Please order CHS60 S CHS80 S CHS120 S for tray type packaging Capacity of the tray is 15max In case of fractions the units are stored in numerical order Fig 9 1 Delivery pa...

Страница 20: ...y package information CHS120 Dimensions in mm Material Conductive PS 38 33 2 38 323 136 23 37 5 62 4 248 38 33 2 38 323 136 23 37 5 62 4 248 CHS 47 DC DC Converters Bus Converter Power Module Type Ins...

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