EMC improvement - MR16 LED power supply

We are looking for somebody who will able to find EMC problems and improve our design.

Specification of our design:

power supply: nominal 12VAC/50Hz-10kHz

power sources:

- toroidal transformer

- pulse electronic transformer for halogen (0-50W)

output current: 500mA

output voltage: about 11VDC (High-Power LED x 3 in serial connection)

operating temperature: from 0*C upto +85*C

IC: LM3402MM

topology: step-down

applicable EMC standards:

EN55022 (RF emission)

EN55015 (conducted emission) -> tested whole system: LED lamp + toroidal transformer 230VAC/12VAC

EN61000 (burst, surge, transients, magnetic filed, etc)

We have problem with RF- and conducted emissions (above the limits). EN61000 we did not test yet.

We need:

- corrected documentation of our power supply (under Altium Designer)

- EMC test report for corrected prototype power supply PCBs

Final full payment only.

Evner: Elektrisk Ingeniørarbejde, Elektronik, PCB Layout

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Om arbejdsgiveren:
( 29 bedømmelser ) Jawor, Poland

Projekt ID: #946643

5 freelancers are bidding on average $910 for this job


not problem with thisa design

$500 USD in 2 dage
(16 bedømmelser)

See details in MB.

$699 USD in 20 dage
(15 bedømmelser)

Please see your PMB for details.

$600 USD in 15 dage
(6 bedømmelser)

I am an Layout PCB Engineer located in Mexico with a very good experience in PCB design, shematics, Bill materials, gerber files. My refereces is products of consum and equipament audio,medical,supply power

$750 USD in 15 dage
(1 bedømmelse)

We have extensive experience in lighting industry design to meet the high efficiency conversion and energy saving market needs. We have highly sophisticated equipments to carry out the project in a more successful way Flere

$2000 USD in 25 dage
(0 bedømmelser)