Looking for transformerless ac-dc power module for 30W

Hi,

I am looking for off-the shelf ac-dc power module which should be transformerless and 30W support. Does Monolithic have solution for this?..Please suggest

Thanks and Reagrds,
Muthu

Hi Muthu:
Welcome to the MPS Forum. The maximum power we can support is 10W for a transformer-less ACDC power converter. The part is MP175. For higher than 10W you will need to use a transformer. What is the main reason that you do not want to use a transformer? What are the output voltage and currents?

Hi,

Thanks for the prompt reply…

Actually, we are looking for certified module solution…Do u have any ac-dc module solution for 30W (5V 6A) and for 8-10W (5V 2A) transformerless application ?

Thanks and Regards,
Muthu

You look for an non isolated application? This is, what transformerless implies. Mains AC to 5V 6A out will require a 100uH 6A inductor and a 500V+ 6A+ switch. Both are prohibitive large and expensive compared to a transformer based solution. The efficiency will be lower too, because of large AC losses. So what is the reason, that you look for a transformerless solution for this output current level?

Hi Muthu:

Also if you can share the final application with us that will help too. Compliance to what certification are you looking for in the module ? What is the timeline of your project ?