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198 Threads found on 12v 24v
finding it difficult to design clean 24v DC to 12v DC converter for 12v LCD TV's in big cars
if your input is 12v, and output is 24v, 20A...then your peak input current in the inductor could be as low as 45A or so. ILL SEND YOU BOOST SIM AND YOU CAN GET INTO IT. (sorry about capitals) - - - Updated - - - here, not your spec but youll get into it. iTS FRee ltspice sim - - -
I have a transformer of an old UPS Implying it steps up 12v (24v) to mains ACV. A clever designer might (for all we know) install more windings to step down mains AC to charge the battery pack. It will require a lot of testing, if you wish to figure out step up/down ratios, etc. Take ohm readings. Make a list of all
It does not seem likely that the unit would have a single 6V battery, delivering 750W. That's over 125 Amperes. When I opened up my UPS, I saw four 6V gel cells, in series. 24v total. Perhaps yours is similar? Can you open the cabinet and see whether you could hook up your 12v battery? Or perhaps it needs two. You may need to attach custom t
Hello, I would like to build a small symmetric PSU (<3A) for my projects. Space is limited so I am thinking of using a 24v laptop smpsu and connect at it's output this circuit to have a +/-12v symetric PSU. 1. In this configuration, will the opamp output ground be
Very sound advice from treez. It might be difficult finding a commercial power module with a wide enough input voltage range. Most are nominally 12v or 24v input, and probably will not reach far enough. These are not difficult to build and get going, but as treez suggests find a 1:1 transformer that will carry one amp average (required at 9v).
It is called power inverter. You can find a lot of options for automotive applications, with 12v or 24v.
I have a circuit that needs to "scale" the output current, but doing so with this circuit does not always work. The PFET will not turn OFF regardless. If I reduce the 24v rail down to a smaller value than VG (12v), it will shut off. I realize I probably screwed up this circuit, since the relationship of VGS will always keep this FET ON.. Ca
I am looking for a circuit design that will produce, from a 24vDC 2A regulated plug pack (SMPS wall wart), +/-10VDC rails with a virtual ground midway. Each rail needs to be capable of providing 1A continuous, or as close as practical. I would prefer not to build a switching supply, use two separate linked supplies, or (for safety reasons) const
Can I drive 12v coil relay with 24v power supply
I have a bunch of 24v dc fans I want to power from a marine battery at 12v for an rv. each fan draws 110ma I wired them in parallel, so my load is 440ma (I think) Now If I power this directly from the 12v, the fans run slow, so I bought: 150W DC-DC Boost Converter 10-32V to 12-35V Step Up Charger Po
Hi friends I am having 24v 200ma power supply i have to convert it into 12v 3amps supply how can i convert it if i am giving input of 24v 200ma to lm350 regulator it will convert 12v 3amps is this correct or what will be the best method to decrease the volt into 12v and increase current into (...)
hello, Could anyone help me, i'm curious, could you run an extension cable through a 12v DC innverter ( ) from a 28v power supply (4x Veh batteries setup series/parallel) without damaging the inverter. I'm not sure whether the inverter just takes what volts
Depends greatly on your heatsink thermal resistance how much current and heat rise to say 70'C I succesfully use 4S on 12v on AWG18 with 30AWG drops for Rs equalization of 0.1Ohm or 6S on 18 or 19V or 8S on 24v or 24S on 48V. So no loss on regulator and adjust supply drop with long wire suitable guage for 100% voltage matched between supply an
Hi guys, I have a flyback design taking 50V to 12v @ 1.25A, switching at 1MHz. The transformer has a LP of 66uH with 36T primary and 9T secondary (3.5 ratio). The switching waveform attached is the primary waveform. The primary ramps to over 100V, on the secondary side the the waveforms have large spikes. Any ideas where i have gone wrong with m
i need to make a power supply that generates +24v, +12v, -12v, +5V, +3.3V DC from 110/230VAC. I Have 0 experience in power supply design. Lets put questions one by one. 1. what type of supply i should go for? smps or linear power supply? and why?
Hello, What is the accepted standard commercial & industrial voltage bus level for solar panel outputs? Is it 12v or 24v, or something else? (That is, considering that that an 220VAC inverter is not used.)
Hi guys, I want to build a circuit of production counter display where when there is an output from a machine, it Wil produce a count signal n my display Wil start increment one. The machines are using PLC and different machine will produce different voltage of count signal. Some are 5vdc, 12vdc n 24vdc. For my display, I use a pic controller
Hi, I am following the circuit here I am using 12v instead of 24v. 115245 I have not connected a pic to pin A and B yet. Instead I am using a potentiometer. I ground pin A and then drive B with the pot for one direction and then alternate for another direction. T
Hi! I am converting 24v to 12v using a R-7812-0.5 converter, but I have some current sensitive components connected to the 12v circuit. So my question is will this converter always send 500mA, or is that dependent on the current consumption in the circuit? Maybe it?s a stupid question, but I am a software guy working on a school project, (...)