SMPS Power Supplies Industry News



Power Supply Discussion Threads
DC/DC converter, 7kW, 24 V DC in/560 V DC out. 
Hi,

Does anyone have a converter meeting the following specs in their product range. Any advice on companies who might be able to provide this converter is also much appreciated.

DC/DC converter, 7 kW, input: 24 V DC battery (app. 20-30V), output: 560 V DC +/- 5%.
Parallel connection of two or more units is accepted.
 
hberg 
1/27/2012 
 
DSP Based Inverter 

I am a powerelectronics design engineer having 16 years experience in design and development. We have field tested designs on all range of UPS inverter smps etc. The designs use most power full digital signal processor. We have designs with three different dsp processors
Analog Devices, Freescale and Texas Instruments. If any one wanted technology transfer contact green 
Shainajkumar 
1/27/2012 
 
audio whistle from SMPS transformer 

Hi. How many of you have encountered the audio whistle comming from transformer & filter inductor of switching power supplies that they have designed. What do you do to remove this audio noise. As an example I think I would use varnish in the windings for that.

I also think that if pwm chip is forced to give clock every cycle and in low duty cycle for less current  
Azeem 
1/23/2012 
 
Free Design Files 

If you are a Power Electronics professional you might be interested to get free access to SMPS Design - Expert System (http://www.SMPS.com/Design/).

Rrequest "Login" access by emailing us at SMPS@SMPS.com. You must be a qualified power supply designer, working for a reputable company and sending an email from a verifiable company domain name.

Visit us often f 
SMPS Editor 
1/23/2012 
 
Liquid to remove varnish from transformer 

Hi. which liquid to use to remove hard material "varnish" from ferrite core and bobbin without damaging them. by the way do you call this hard material "varnish" or something else?
 
Azeem 
12/21/2011 
 
MS degree in SMPS from Germany 

Hi
which university in Germany is suitable for MS degree and with specialization in Switch Mode Power Supplies, SMPS. Please also mention the degree title that they award for it (for example MS power engineering, MS electronics, MS electrical etc). The course should be taught in English. I have searched through DAAD at http://www.study-in.de/en/ but not found till now a 
Azeem 
11/29/2011 
 
Double diode current rating 

Hi
Suppose we have to design for a 10A output from half bridge converter. We normally use high frequency double diode as rectifier with centre tape secondary. Does we need a 5A+5A (i.e. 5A per diode) double diode for that or a 10A+10A (i.e. 10A per diode) double diode
 
Azeem 
11/25/2011 

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