CY0175 75V 20A DC DC switching power supply

Item

Project

Technical Specifications

Unit

Note

1.1.1

Input Voltage

42～58

Vdc

1.1.2

Input Voltage Range

-

Vac

1.1.3

AC Input Voltage Frequency

-

Hz

1.1.4

Inrush Starting Current

-

A

Vin=220Vac,Cold

1.1.5

Max Input Current

30

A

Vin=220Vac

1.1.6

Efficiency

≥98%

Vin=220Vac，Rated load

1.2

Output Requirements

Item

Project

Technical Specifications

Unit

Note

1.2.1

Output Voltage

75

Vdc

1.2.2

Output Voltage Range

40-75

Vdc

1.2.3

Load Output Current

20

A

1.2.4

Output minimum current

0

A

1.2.5

stabilized voltage precision

±0.6%

1.2.6

Power

1200

W

1.2.7

Ripple & Noise

≤200

mVp-p

Vin=220Vac

Limiting bandwidth 20MHz, load end 0.1 F & 10 F capacitors.

1.2.8

ON/OFF overshoot amplitude

±5%

1.2.9

Dynamic

Response

Overshoot amplitude

±5%  

25%－50%－25% or 50%－75%－50%  load changes

Recovery time

△t≤200

µS

1.2.10

Voltage Regulation

1％

1.2.11

Load Regulation

1％

1.2.12

Start Time

≤3

mS

Vin=220Vac，Rated load

1.2.13

Hold up Time

≥10

mS

Vin=220Vac，Rated load

Input under-voltage protection

Under-voltage point

Vac

38

/

After a fault is rectified, the system automatically resets.

Restore point

/

/

41.5

Backlash

2

/

/

Output over-voltage protection

Over-voltage point

Vac

/

/

62

After a fault is rectified, the system automatically resets.

Restore point

/

/

59

Backlash

2

/

/

V

/

/

Vout+2.5V

After a fault is rectified, the system automatically resets.

Output short circuit protection

(Yes)

After a fault is rectified, the system automatically resets.

Over temperature protection

(Yes)105℃

When the internal temperature of the coil is＞105℃ per 30 sec., the output power is reduced by 3.125% from the existing base to 0. When the temperature is less than105℃ per 60 sec., the output power is increased by 3.125% from the existing base to the rated power.

Battery reverse connection protection

(Yes)

The battery is connected inversely and the power supply does not turn on

Communication interruption

(Yes)

The charger will automatically shut down if no master command is received within 20S.

Charging timeout

(Yes)

Charge continuously for more than 4 hours, power off.

NTC fault

(Yes)

NTC fault

1) When the temperature is less than -30℃ (NTC open circuit ), to be shutdown lasts more than 5 min.

2) Temperature >125℃ (NTC short circuit ),shutdown in 15sec.

2.1

Electrical strength

Input &

Output

3000Vac(4240Vdc)/10mA/1min（No case）

No arcing, No breakdown

Input&earth connection

1500Vac(2120Vdc)/10mA/1min

Output&earth connection

500Vac(700Vdc)/10mA/1min

4.1

Working TEMP.

-25～+60

℃

Typical value 25℃

4.2

Storage TEMP.

-25～+85

℃

Typical value 25℃

4.3

Working Humidity

10%～95% (RH)

4.4

Storage Humidity

5%～95% (RH)

4.5

Altitude 

≤3000

m

working proper

4.6

Cooling mode

Natural cooling

5.1

High temperature  working

+60℃ 8hrs

Standard（Small batch could be produced）

5.2

Low Temperature  working

-25℃ 8hrs

Standard（Small batch could be produced）

5.3

High temperature  storage

+70℃ 24hrs

Standard（Small batch could be produced）

5.4

Low temperature  storage

-25℃ 24hrs

Standard（Small batch could be produced）

5.5

 Steady-state damp heat test  

Standard（Small batch could be produced）

5.6

High-low temperature cycling test

Standard（Small batch could be produced）

6.1

Dimension

163 ×87×49 ±1

mm

(L×W×H)

6.2

Installation Dimension

Refer to the figure 1

6.3

Output connecting terminal

refer to the figure1

6.4

Package

24pcs/carton(separated with knife clip)

XHD2.5-2*2P

CANH

CAN+

CANL

CAN-

CANH

CAN+

CANL

CAN-

XHD2.5-2*2P

485A

485+

485B

485-

485A1

Standby485+

485B1

Standby485-

KV636-7.62-2P

VIN-

Input negative

VIN+

Input positive

KV636-7.62-2P

BAT-

Battery negative

BAT+

Battery positive

4-Coding switch

16-bit address code switch