11 Threads found on edaboard.com: Smps High Voltage Supply
A 20 kHz inverter can work with primary switching smps, but only if they have fast input rectifiers and no EMI filters effective in the 20 kHz range. Otherwise it can damage the connected device as mentioned by betwixt.
To avoid possible damage, it's safer to rectify the inverter output on board and supply high voltage (...)
Power Electronics :: 01-01-2017 04:55 :: FvM :: Replies: 7 :: Views: 412
how to get +5v and -5v dual power supply using single 24v and ground ( 24v smps)
Power Electronics :: 08-21-2016 15:12 :: raman00084 :: Replies: 2 :: Views: 306
It is easy to reduce noise say on 50mV smps ripple using LC filter to desired level combined with PSRR on chip.
CM and DM ferrite beads can also reduce ingress on high impedance inputs, if the layout causes crosstalk.
I have used smps for video amplifiers and AMLCD bias without noise effects, but with care.
In this case I stepped down 9V (...)
Analog Circuit Design :: 07-26-2016 07:16 :: SunnySkyguy :: Replies: 6 :: Views: 244
A very common type of power supply is called a Switched Mode Power supply (smps). If you wanted a mains to 28V power supply from the 230V mains,the input circuit would rectify your incoming AC, this would give, 230 X 1.4 ~ 325V DC. A high frequency switching circuit would run of this voltage (...)
Elementary Electronic Questions :: 03-19-2014 14:03 :: chuckey :: Replies: 1 :: Views: 502
Most problems occur in the horizontal deflection and power supply sections. The smps provides sometimes a means for safety shutdown if the horizontal output stage produce excessive high voltage or draw too much current.
-bad electrolytic capacitor in the supply line to horizontal driver (...)
Elementary Electronic Questions :: 02-20-2012 05:14 :: mister_rf :: Replies: 1 :: Views: 838
Please can i confirm that this is a viable method for TL431/opto smps regulation with output voltage of 36V......................................
(The TL431 is only good up to 36V)
Power Electronics :: 02-17-2011 21:35 :: eem2am :: Replies: 1 :: Views: 1389
Can a smps ferrite-core tranformer used in reverse? Eg. can a 230v/ 12v smps transformer used in reverse (assuming that the same switching frequency is used) to get 12v stepped up to 230v? as anyone try it out? Thanks.
Hobby Circuits and Small Projects Problems :: 07-30-2009 20:57 :: bongkk :: Replies: 3 :: Views: 2820
The high wattage of the resistor you've mentioned is choosen because of two reasons:
- the surge current is much higher than normal current during stable work of power supply and the resistor must withstand that current for shor period of time (it's usually no more that 100 ms)
- the maximum voltage the resistor is (...)
Analog Circuit Design :: 07-03-2008 07:12 :: kekon :: Replies: 1 :: Views: 979
I dont recommend you to design a high volatge circuit best on smps it can be dangerous work
Any how you can go and find a referance design for high voltage smps in ON- SEMI site
All the best
Professional Hardware and Electronics Design :: 06-07-2008 05:53 :: bobcat1 :: Replies: 3 :: Views: 2831
I want to design a smps with these specifications:
Input voltage: 3 phase 380V (Line to Line)
Output voltage: 10VDC to 100VDC
Output Current: 400A
Output Power: 40 kW (= 400A x 100V)
Efficiency: larger that 90% at Full Load (= 400A x 100V)
Any block diagram or idea?
Analog Circuit Design :: 06-04-2006 13:36 :: leotim :: Replies: 1 :: Views: 2395
The task is not as difficult as it seems. I have some experience with building flyback converters up to 150W so I would use flyback smps to power that LED matrix.
Analog Circuit Design :: 01-21-2005 12:56 :: kekon :: Replies: 14 :: Views: 7330