Homepage | Set Home | Add to Favorites
Member

Zhejiang Hengwei Technology Co., Ltd


Products
  • No Category
Search
 

Friends links

LRS-50W Switching Power Supply
Click image to view full size image
Product: Views:412LRS-50W Switching Power Supply 
Unit price: Negotiable
MOQ:
Quantity:
Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2019-04-23 08:35
  Inquiry
Details

LRS-50W Series Ultra Thin Single Switching Power Supply


Model

LRS-50-5

LRS-50-12

LRS-50-15

LRS-50-24

LRS-50-36

LRS-50-48

Output

DC voltage

5V

12V

15V

24V

36V

48V

Rated current

10A

4. 2A

3. 4A

2. 2A

1. 45A

1. 1A

Current range

0~10A

0~4. 2A

0~3. 4A

0~2. 2A

0~1. 45A

0~1. 1A

Rated power

50W

50. 4W

51W

52. 8W

52. 2W

52. 8W

Ripple & noise

100mVp-p

120mVp-p

120mVp-p

150mVp-p

200mVp-p

200mVp-p

DC voltage ADJ. range

±10%

±10%

±10%

±10%

±10%

±10%

Voltage tolerance Note. 3

±3%

±2%

±1%

±1%

±1%

±1%

Line regulation Note. 4

±0. 5%

±0. 5%

±0. 5%

±0. 5%

±0. 5%

±0. 5%

Load regulation Note. 5

±2%

±1%

±0. 5%

±0. 5%

±0. 5%

±0. 5%

Setup, rise, hold up time

800ms, 30ms, 30ms/ 230VAC (full load)

Input

Voltage range

90~264VAC,127~373VDC

Frequency range

47~63HZ

AC current

0. 95A/ 115VAC 0. 56A/ 230VAC

Inrush current

Cold start 45A/ 230VAC

Efficiency

83%

86%

87%

88%

89%

90%

Leakage current

<0. 75mA/ 240VAC

Protection

Overload

Rated output power 110%~150% start over load protection

Protection type: hiccup mode, auto-recovery after fault condition is removed

Over voltage

Rated output voltage 115%~135% Start over voltage protection

Protection type: hiccup mode, auto-recovery after fault condition is removed

Environment

Working temp, humidity

-30℃~+70℃ (Please refer to "derating curve")
20%~90% RH Non-condensing

Storage temp, humidity

-40℃~+85℃, 10%~95% RH non-condensing

Withstand vibration

10~500HZ, 2G 10min/1cycle, period for 60 minutes, each axes

Safety

Withstand voltage

I/P-O/P: 1. 5KVAC I/P-FG: 1. 5KVAC O/P-FG: 0. 5KVAC

Isolation resistance

I/P-O/P, I/P-FG, O/P-FG: 100M ohms/ 500VDC

Fit standard

Safety standards

Compliance to UL60950-1, TUV EN60950-1, GB4943

EMC emission

Compliance to EN55022 (CISPR22) Class A, GB9254 Class B, EN55014, EN61000-3-2, 3

EMC immunity

Compliance to EN61000-4-2, 3, 4, 5, 6, 8, 11, EN55024, EN61000-6-1

Others

Dimension

99*82*30mm (L*W*H)

Weight / packing

0. 21kg/ 60pcs/ 13. 6kg/ 0. 025m³/ 0. 88CUFT

MTBF

≥630K hrs min. MIL-HDBK-217F (25℃)

Note

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0. 1uf & 47uf parallel capacitor.
3. Tolerance: includes set up tolerance, line regulation and load regulation.


The unisolated converter is the simplest switched power structure, and its power conversion mode is "dc-dc" conversion. According to the type of voltage conversion, it is divided into three basic types: The structure of the Buck Chopper, Buck Chopper, and buck-boost Converter is very similar. Input, output, and ground converge at one point. Inductors are used for energy storage. The main difference between them lies in the connection mode of inductors. If inductors are placed at the output end of the circuit, it is a step-down chopper topology. An inductor placed at the input end of the circuit is a boost chopper topology. When the inductor is connected to the ground, it is a step-boost chopper topology. Due to the structure similarity, therefore tend to change these simple circuit topology of some components in the input polarity connection or change, can be another converter topology, such as a 12 v input, 5 v output buck chopper output can be the original grounding and from the ground in the new output for a 7 v input, - 5 v output of the buck - boost chopper.


By buck - boost chopper circuit, also spawned buck chopper circuit, Cuk, SEPIC and ZETA and other non isolated dc-dc transform circuit, the SEPIC converter and ZETA converter are Ć UK small reset of the converter. According to the load demand, the combination of basic boost chopper circuit and basic drop chopper circuit can form a compound chopper. For the same basic chopper circuit, a multi-phase chopper can be constructed to meet the higher stability and efficiency of the load on the power supply. In recent years, there has been a charge pump converter circuit which only USES capacitor as energy storage element. Another neutral point topology is used for power supply and active filter.


The efficiency of switching devices will decrease when the pulse duty ratio is very short. If higher values of voltage transformation are required, then isolated topology with transformer is required.


The following table provides an overview of non-isolated topology types. In the table, "D" is the duty ratio of the pulse triggered by the converter, and the value is between 0 and 1. The input voltage (V1) is assumed to be much larger than 0; If there is no input voltage, there is no output voltage (V2).


http://www.honwhim.com/

Inquiry