Product Brief
Microchip offers two DC/DC converter reference designs
Brian Fuller8/23/2010 7:30 PM EDT
Comment
smartchiku
colargol
Microchip reference design is very interesting and well done, especially for ...
Microchip Technology Inc. announced two new digitally controlled DC/DC converter reference designs with advanced, high-efficiency topologies to help designers optimize contrasting requirements in the design process, including efficiency, power density and cost.
Both the quarter brick DC/DC reference design and the DC/DC LLC converter reference design use Microchip’s 16-bit dsPIC33F GS series of digital-power digital signal controllers (video overview below) for fully digital control of the power-conversion and system-management functions.
Key features:
Quarter Brick DC/DC Converter Reference Design:
DC/DC LLC Converter Reference Design:
For more information, please visit: http://www.microchip.com/get/BRN2.
Late last month, Microchip released a new development board for its dsPIC33F and PIC24H microcontrollers.
Both the quarter brick DC/DC reference design and the DC/DC LLC converter reference design use Microchip’s 16-bit dsPIC33F GS series of digital-power digital signal controllers (video overview below) for fully digital control of the power-conversion and system-management functions.
Key features:
Quarter Brick DC/DC Converter Reference Design:
- Quarter Brick Size
- Phase Shift Full Bridge (PSFB) Topology
- 200W Output Power
- Input voltage 36-76 Vdc; output voltage 12V
- >93% efficiency
DC/DC LLC Converter Reference Design:
- LLC resonant topology
- 200W output power
- Input voltage 350-420 Vdc; output voltage 12V
- >95% efficiency
For more information, please visit: http://www.microchip.com/get/BRN2.
Late last month, Microchip released a new development board for its dsPIC33F and PIC24H microcontrollers.
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hm
8/24/2010 6:05 PM EDT
It looks Microchip has good potential market with digital controlled power conversion products. However, as user I may ask them to extend their approach further. If I compare their solutions with other products in market, I may suggest or request for more integration to provide SoC type solution. That is they should include other parts like PWM, feedback sense and even power switch on this chip or atleast package.
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wilber_xbox
8/26/2010 3:03 PM EDT
I am currently working to use high power buck DCDC converter for my application. The ones i could find were from TI. It is good to know that i can also look at Microchip's site. But i did not write this comment only to say that.
I am actually looking for a DCDC converter solution with minimum EMC issues [especially magnetic]. These converter use some kind of RLC-circuit to convert high voltage to low voltage at high frequencies. Which means that such a converter still produce EM field [just like transformer] but at higher frequencies [200-300kHz].
Does anyone know which type of DCDC converters should i look for? Any expert reading this comment? Please respond.
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colargol
9/9/2010 3:47 AM EDT
Microchip reference design is very interesting and well done, especially for analog designers that are still hesitating to step to digital.
Combined with the best of analog world and efficient power-trains, digital-control and power management are already today offering an un-precedent level of flexibility that ICT systems' architects have already implemented in several applications. For them, having the possibility to digitally monitor and control the power delivered to any part of their board give them an amazing level of flexibility to accurately manage board-power distribution with result to save energy and improve reliability.
I would like to suggest you guys to watch the new video Ericsson posted on You Tube, which gives a good picture of what is today available and let imagine what tomorrow will be.
Video can be seen at:
http://www.youtube.com/ericssonpowermodules
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smartchiku
8/8/2012 6:34 AM EDT
hello all
m trying to use small dc dc cnverters...
i/p voltage=385vdc
o/p voltage=12v,5v
freq=130khz
then how i can select the o/p capacitors in terms uF.. please help me out with formula..
please mail the info- deepak.chikane@gmail.com
have a nice day...
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