Power Supplies Manufacturers

QLA20A series built-in bare board open frame power supply 20Watts

The QLA20A Power supply is with easy installation . Input / Output could insert terminals  (VH3.96-3A2/VH3.96-4A and Retainable hole welding wire is used.

  • Model:

    QLA10A
  • Input Voltage:

    85-264V AC or 110-370V DC.
  • Working Mode:

    AC-DC
  • Size:

    8.65*4.55*2.2cm
  • Power:

    20W
  • High Isolation with Voltage:

    3000VAC
Products description

Product features

1.The product is with easy installation . Input / Output could insert terminals  (VH3.96-3A2/VH3.96-4A and Retainable hole welding wire is used.

2.Fixed mounting holes are arranged at the four corners to prevent from power failure due to movement/vibration .The straight length of the fixed holes is 3.2mm.

3. Iternational Universalinput voltage: 85-264V AC or 110-370V DC .

4.High efficiency, high power density, low output ripple noise, dual channel output, high precision of control circuit output voltage (+5V).

5.High isolation between input and output.

6.Over current protection , short circuit protection and temperature protection .

7.The output has built-in double LC-pi filter without external filter circuit .

8. Three years of quality assurance

Item 

Condition

Common models of this series we have (we can customize any products with different output voltage and current

or other requirements according to customer’s requirements )

DLA20A-0512DLA20A-0524
1 、Input Features
AC Input(VAC)85-264VAC
DC Input(VDC)110-370VDC
Frequency Range(Hz)47-63Hz
Input Current(A)1/ 115VAC   0.5/230VAC
Surge current(A)Cold Boot:20A/230VAC
Efficiency(TYP .)84%85%
Stand-by power consumption(mW)≤ 1W/230VAC
2 、Output Features
Output Voltage(VDC)5V+ 12V5V+24V
Output voltage accuracyMain circuit:± 1% ,Subcircuit :± 10%
Rated current(ADC)2A1A2A0.5A
Rated power(W)20W20W
Ripple&Noise(mv

p-p)

Rated input

voltage , 20MHz

bandwidth

VO1 Main Circuit:5V-50mV
VO2 Subcircuit: 12V/24V- 100mV
Linear adjustment rateFull-load± 1%
Load regulation10- 100% load±3%
Start up and rise timeFull-load2000ms ,30ms/ 115VAC    1000ms ,30ms/230VAC
Retention

time(ms)

Full-load16ms/ 115VAC  50ms/230VAC
Overload

protection

Rated input voltage115%- 150% of the rated output power
Protection mode: hiccup mode, auto-response after removal of abnormal
Short-circuit protectionRated input voltageAutomatic recovery after long-term short circuit
Over-current protection≥ 1. 1 times Io
Start delay

time(ms)

 

Vin :230VAC

500ms
Power-off

protection

time(ms)

20ms
3 、General Features
Working      temperature(C)/-30-70C
Working    humidity(RH)/20-90%RH ,non-condensing
temperature

coefficient

/±0.02%/C
Storage temperature and humidity-40~+85C 10-95%RH
Switching frequency(KHz)20-65KHz
Isolation     voltage(VAC)Input-to-output,  test lasted 60s ,≤

5mA

 

3000VAC

Insulation     resistance(MΩ)Input-to-output,

500VDC

100MΩ
Leakage    current(mA)500VDCInput to output      ≤ 1mA/RMS
MTBF@25C215000h
Safety level/Adaptation :CLASS B
Vibration

resistance

/10—500Hz 2G 10 minutes/cycle . 60 minutes each for X, Y and Z.
Electro-magnetic compatibility/Adaptation :EN55022(CISPR22) Class B  EN61000-3-2-3
 

 

 

Remarks

1. Except for special instructions , the parameters of this specification are measured at 230VAC input, rated load and 25C.

2. Measurement of ripple and noise: Using a  12” twisted pair, and the terminal has two capacitors , 0. 1uF and 10uF in parallel . Measured at 20MHz bandwidth .

3.Accuracy: Including errors, linear adjustment rate and load adjustment rate .

4. The power supply should be regarded as part of the components in the system, and electro-magnetic compatibility related confirmation should be carried out with the terminal equipment .

5. Reduced output is required under low input voltage . Please refer to the reduction graph.

Product Packaging and Pin Definition Diagram

Product selection and Notes:

1.Please refer to the specifications in detail for selection and use, otherwise the reliability of power supply will    not be guaranteed .

2.All parameters of this specification are measured according to the internal standards of our company.

3.It is suggested that the load power of the power supply should not exceed 80% of the rated power of the power supply.

4.With multi-output power supply, each output circuit must be loaded and used at the same time according to the corresponding ratio .

5.Our company can provide customized products .

6.We reserve the right to change specifications without prior notice .

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