Contact Us
Find out more about service
Contact us

Power Supply / Charger

Power Supply / Charger


Power supply products are widely used as necessary accessories of other devices. HTW, has been focused on the testing and certification services in an early time, and we were certified as an IECEE CBTL. All these ensure our efficiency and accurate testing capability.


Testing We Offer

Testing

Safety test

EMC test

Energy efficiency test

Battery test

ERP, CEC, DOE, NRcan, MPES, CECP,DOE, CEC test

Photo biological safety of lamps and lamp systems

We are able to provide debugging solutions for product improvement


Power Supply & Charger We Test To 


Switching power supply

inverter power supply

AC regulated power supply

DC regulated power supply

DC / DC power supply

communication power supply

module power supply

variable frequency power supply

UPS power supply

EPS emergency power supply

purification power supply

PC power supply

rectifier power supply

network power supply

power operation power supply

customized power supply

heating power supply

welding power supply / arc power supply

electroplating power supply

adapter power supply

linear power supply

etc.


Standards We Test To 

Country / Area

Safety

Electromagnetic compatibility (EMC)

IEC report

IEC 60950-1

IEC 60065

IEC 62368-1:2014

IEC 62368-1:2018

CISPR 32, CISPR 35

IEC 61000-3-2, IEC 61000-3-3

Europe

EN 62368-1:2014+A11/2017

EN IEC 62368-1:2020+A11:2020

EN55032, EN55035, EN55024, EN61000-3-2,  EN61000-3-3

United States

UL 62368-1:2014

UL 62368-1:2019

FCC Part 15B

Canada

CAN/CSA C22.2 No. 62368-1 -14

CSA C22.2 No. 62368-1:19


ICES-003

Japan

J60950-1 (H29)

J60065 ( H26 )

J62368-1 (H30)

J55013 (H22), J55022 (H22), J55032 (H29) ,

Australia

AS / NZS 60950-1

AS / NZS 60065

AS / NZS 62368-1:2018

AS / NZS CISPR 32

China

GB4943.1

GB8898

GB / T 9254, GB 17625.1, GB / T 17625.2, GB / T 17618, GB / T 13837, GB / T 9383

others

Email us, for more information 

sales@htwlab.com



Your Benefits At A Glance:

  1. Expert partnership-HTW has extensive experience in all types of devices and regulatory requirements across markets. 

  2. Reduce time to global markets-With our in-depth insight of global product quality and regulatory requirements, HTW optimises your costs and minimises time-to-market.

  3. Single source testing solution-Together with our wealth of knowledge in complex regulations globally, HTW provides a complete suite of testing solutions according to your needs.

  4. Complete qualifications-Testing costs are lower than other labs.


We're Here for You

We're based in China but regularly work with clients globally. We will get back to you in 1 working day.


Our Business Hours: 

8.30am - 5.00pm in CST (UTC/GMT+08:00) Monday - Friday 


Email:

sales@htwlab.com

Kindly tell us ‘how did you hear about us’.

HTW Testing and Certification Solutions.

Certification Services We Offer

Certification

International CB 

EU CE

Germany GS , TUV 

America UL, ETL, FCC 

Canada  CSA, IC

China CCC

Korea  KC

Japan  PSE

Australia  SAA, RCM

Taiwan BSMI

Singapore CPS,IMDA

Malaysia SIRM

Other Global certifications 

Experience in Testing Process

1. The reason of radiation test failed

There are many reasons for EMC radiation tests failed according to the standard, such as interface filtering, cable design, grounding, shielding etc.  Generally speaking, it is the problem of PCB design. For TCB, a multilayer board is a recommended choice, as it can reduce impedance. The circuit on the PCB board is required to be straight and short.


2. The problems of product information

Label, Schematic, User manual, CDF/BOM, PCB layout

HTW Qualifications

ISO 17025, CMA, CNAS , IEC CBTL, US UL, A2LA, FCC, TIMCO, CEC, DOE, Germany TUV, EMCC, Japan VCCI, Norway DNV, NEMKO, UK ITS, Canada IC, Hong Kong EMSD and other qualifications have been obtained.

Testing We Support

Test items (Safety)

Input Current Test

Label Wiping Test

Energy Level Test

SELV Test

Current-Limiting Circuit Test (LCC)

Power-Limiting Test (LPS)

Ground Continuity Test

Temperature And Humidity Test

Drop

Impact And Other Mechanical Stress Tests 

Ball Pressure Test

Normal Temperature Rise Test

Touch Voltage

Touch Current Test

Withstand Voltage Insulation Test

Abnormal Test

Component Failure Test, etc.

 

Test items (EMC)

Conduction Test

Radiation Test

Harmonics Test

Voltage Fluctuations And Flicker Test

Static Electricity Test

RS Test

EFT Test

Surge Test

CS Test

Power Frequency Magnetic Field Test

Voltage Sag Test, etc.

 

Test Items (others)

1. For external power supply:

ERP, CEC, DOE, NRcan, MPES, China Energy efficiency

2. For battery charger:

DOE, CEC

 

62471:  Photobiological safety of lamps and lamp systems

62471-5: Photobiological safety of lamps and lamp systems – Image projectors

60825-1: Equipment classification and requirements

Service Procedure

1. Provide us with product pictures, product brochures/manuals

2. Determine your needs(test report purpose/ test itmes/ standards)

3. Receive the testing/compliance service proposal and quotation 

4. Sign contract and make payment

5.Send samples (please contact us for address info.)

6.Informed project opening and test TAT(turn around time) via email

7.Testing 

8.Draft report for your confirmation

9. Formal reports endorsed by ILAC - CNAS (electronic version) 

10.Sample Discard or Return

Contact Us
First name*
Last Name*
Job title
Company name
Email address*
Phone number
Message*
HTW Lab
Product Testing and Certification

Call: 86-0755-26748009

Email: sales@htwlab.com


"Communicate with our experts to determine your needs and we will provide you with an evaluation, proposal and quotation"

Address: 1/F, Bldg5, Hongfa Hi-tech Industrial Park, Tianliao, Guangming, Shenzhen City, Guangdong Province, P.R. China 

ISO/IEC 17025 Accredited. 
CNAS.

ILAC.
GLP Laboratory.
CMA.
A2LA.

CBTL.