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344 Threads found on edaboard.com: Switching Regulator
can i connect lm2576 in series ?? I have 27 volt supply,i need 24V,12V and 5V can i connect 3 lm2576 in series like 1st one gives me 24v, which feeds 2nd lm2576 and gives me 12V and so on...
hi all, am confused whether to use an linear regulator or a switching regulator. my input is an 24v power supply from an smps , my output reguirements are 5v 100ma max. am confused whether to go with a linear or a switching regulator as linear regulators dissipate more heat , but the (...)
Both of those diodes are intended to be used as rectifiers, not switching diodes. Thus, switching time is an irrelevant parameter. You need to look for switching diodes.
But i want output current was 50A. That's a huge current, maybe you want 50mA ?? There are many buck/boost converters (linear and switching regulator) which you can find on
I would make a guess at it being an NJW4132. It's the right shape, a switching regulator and seems to have the pins wired appropriately. The only potential problem is it should have survived 12V at it's input, unless it was fed 12V AC of course! Brian.
Hi there, I was trying to figure out what are pros and cons of powering an ADC directly off of a switching regulator. This application report from TI, SLYT366A, seems to be quite helpful. However, there was a paragraph there that made me a bit confused. On the page 5, it talks about
I see that you decided to build your own discrete SMPS controller. Which is supplied by a 4 volt regulator. Which means that at M1's gate, you'll have a driving voltage of about 3 volts.....Will M1 be fully enhanced with such a low gate drive? Also, you don't mention switching frequency. But if you are switching above 100 Khz, X17's slew (...)
Supplying the LED driver from linear voltage regulator is a bad idea in terms of efficiency. TPS61500 has 18 V input range, so it can be operated from 12V input as well. It sounds that switcher input peak current is exceeding 7805 current limit. If a 47 ?F capacitor solves the problem, it's a reasonable solution. I presume there will be still sw
Any regular power supply with 110-250V range will handle this.
Hi, Many switchin regulatur IC manufacturers have interactive selection guides on their internet sites. Use them. It's difficult to recommend "the one" out of thousands switching regulators without knowing details about your application. Klaus
I want to design a DC/DC converter Power supply, and I am choosing between MOSFET and BJT on which to use for switching circuit. I have seen DC/DC converter switching IC that uses MOSFET/BJT for its switching part, which do you should I use? the one with MOSFET switch or BJT switch?
Your circuit looks like a parallel resonant converter without the secondary. Also, i do not see any primary current sensing. Your circuit also reminds me of a fluorescent ballast driver, but where the fluorescent tube would be, you have an inductor. But then again your controller is fixed frequency , and some variability of switching frequency is
switching supplies in TV's often go into a hick-up mode for protection if there is an excessive load due to a fault somewhere.
How can this power supply possibly work. It is called a Stacked switching regulator. It is an non isolated topology that uses 208 V 3 phase for an input and an output of 3.3 KW, 330 VDC at 10A. It's claim to fame is that most of the power passes directly through from the 3 phase rectified line to the output. The regulation is handled by a sma
Hi all, I am working on improving electric installation on older type KTM motorbike, and there is this nasty permanent magnet alternator giving out AC ranging from 20V up to 70V depending on RPM. The idea is to make switching step down regulator that takes this type of input and give out 13.8V for charging just regular Pb accu and running other a
Beadboard is OK for linear regulators, but this is a switching regulator & need very careful PCB design. You can't expect to get output from a switching regulator with this lengthy wires & connections. The inductor position & schottky diode positions are most important to make this circuit to working. Even (...)
I can't help with the required laser power although 300mW sounds rather weak to me. The driver IC should work fine though as long as the current is < 1A. Take care with the other components, that kind of switching regulator is fairly critical of the type of inductor and capacitors you use. If you folow the data sheet exactly it should work well an
Hi, How can i calculate the maximum switching frequency of mosfet irfz44 from the datasheet.
If your application doesn't need 5V, it would be more appropriate to convert to 3.3V in the first level, particularly if you plan to use linear regulators. You should have a rough idea about the current consumption of each power net, e.g. by using the Altera power estimation tool, to decide if linear regulator are accpectable. Starting from a
Hello Guys! I am wondering if there is one SUPER switching power supply regulator which is able to provide in one chip: 1.2, 1.8, 2.5 and 3.3V from an input voltage of 24v?? If this is not so. Can anyone tell me a reference power supply low noise module (and not overheat also) to supply a cyclone IV FPGA? Thanks