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59 Threads found on Dcdc Converter
Hi, You can buy any isolating dcdc converter 24V --> 15V/2A and connect the +output to the -input. Or do you want to build it on your own? Then: Switch mode IC manufacturers help you to find the right IC with their selectiin guides. One of many examples: Klaus
Here's a picture with the vias. Is it too much? 128406 I expressed myself incorrectly, the load is meant to be switched. The dcdc converter will stay on. I forgot to mention, the switching frequency will be 500kHz. I added the big capacitor because the datasheet states: "A minimum of 20uf/A load current should be used
Hi, There are a lot of step up / boost dcdc converter chips that run with 2.7V or less. Also there are capacitive voltage doubler / voltage inverter circuits. Like MAX1044.. If you have access to the other side of the RS232 (PC), then you maybe can use those (control line) levels to generate the RS232 supply voltage. But this is a low cost solu
I have a 400 watt boost DC-DC converter that. Input voltage: DC 6V~40V Input current: 15A (max) Output voltage: DC 8V~80V Output current: 0 ~ 9.99A. I want to replace the mosfet with a little higher ID ratting, just to help with heat. The current mosfet is an knock off of SPP80N10L. The issue I'm having is I don't know enough abouts RDS on to
Hi, Going to use Cadence SpectreRF to check dcdc buck converter AC characteristic (gain margin, phase margin, crossover frequency). Any reference? or Tutorial to use SpectreRF for dcdc? I think I have to use PAC (periodic AC) analysis in spectreRF analysis setting but I have no idea how to create dcdc testbench and (...)
Hi All, I am designing power supply and having dcdc converter module in it. My question is How should I connect power supply ground to chassis ground. Can I use a ferrite bead between power ground and chassis ground. Other any other better way of doing this Regards Satish
Hallo, Maybe this is a simple question but I want to be sure. I want to design a common mode filter for the input stage of a dcdc converter (200w input). I follow this application where they suggest the filter in figure 1. The input o
Hi, I designed a boost dcdc converter 11V to 19V @3A load in CCM and a voltage mode type 3 copensator. I get this step response from simulation. Is it ok or should I redesigned my compensator? Steady state response is ok, but I am worried about transient response. Should it be without oscillations? 113040
Hi all, I measured boost converter with kikusui electronic load. And when I draw 2A with elec. load, my dcdc oscillates. But when I draw 2A with resistor (real resistor), my converter operates stable. Then what is the difference between electronic load and real resistor? of course, IN/OUT condition and load current condition is (...)
Hello members, I have some doubts on how to define the requirements for certain analog simulation models. Supposing you have to require a Boost dcdc converter simulation model which shall provide the Output voltage with a given maximum error. How would you define the error and which is the value that can be considered acceptable? Thanks
Hello everyone I'm collecting ideas, plans, projects, tutorials, appliction notes etc ... to make a dcdc block which I give the specific in figure below 103917 I'd like to be able to adjust the maximum current. Could you help me advising for example pwm controller to be used (Texas, Linear, ...), the method by whic
I've seen some design in this forum for a dc-dc boost converter for Nixie tubes running at 180V. Though all designs I've seen are running from 9V DC supply and more... This week I came across this item on ebay, and it looks like it is using a LT dcdc converter chip and a MOSFET packaged in SOP-8, delivering up to 5W at 5V DC input: w
Hi, I will try to explain my problem first. I am trying to simulate a flyback dcdc converter with the following spec, Vin-min = 80V, Vin-max = 122V, Vout=58V, Iout = 6A. I am using a calculation to define the parameters of the transformer mainly. I followed the following steps, 1. Pin = Pout/eff 2. Iav-min = Pin/Vin-min and Iav-max = Pi
If you are using a switched type dcdc converter to convert 12V to 5V you can theoretically get 5V at 5A. Max Power input = 12Vx3A = 36W. Max Power output = 5Vx5A = 25W. You cannot use a linear converter since the 12V adaptor cannot handle more than 3A.
Hi all, I would like to design a circuit to monitor the supply voltage of a board. Suppose that is 50Volts, I wish I had reported variations of + / -5% of the latter. The circuit for reading shold be composed by the microcontroller + AD connected trough spi interface and feed by dcdc converter for various voltage (50Volts --->|||--->3,5,15
Hi everyone, I tried to make every terminal voltage looks perfect though changing Cp1 and Cp2 during simulation,but question comes that for both Mnp3, the Vd and Vs are not synchoronous ,which will cause the Vsd to have a strike. 82059 I tried to remove cp5 rp5..but still didn't work Please help me?!! [ATTACH
Hi everyone, I tried to make every terminal voltage looks perfect though changing Cp1 and Cp2 during simulation,but question comes that for both Mnp3, the Vd and Vs are not synchoronous ,which will cause the Vsd to have a strike. 8206182062 I tried to remove cp5 rp5..but still didn't work
Hi - I have a synchronous voltage mode boost converter design using the TI TPS43000 that is giving me headaches. Its stability seems to be fairly load dependent, which doesn't make a lot of sense to me. With my current compensation network, it oscillates at low loads, but not high loads. Can anybody suggest why the load current is affecting my stab
For my dcdc BUCK converter: Vin=3.6V Vout=1.2V Iout=150mV Vripple<50mV f=1MHZ I caculated : L=8uH C=0.25uF R=8Ω Problem: Now the output voltage of the switches :-34.8mV-3.55V. But the Il and Ic have the wrong waveforms.(pig.1)(y=Il,r=Ic,b=Ir) And Ir Vr increase too(pig 2),no ripple. After 2 period,Ir=2mA and Vc=0.88V What le
A voltage mode dcdc converter, need to know the slew rate of error amplifer, assume the compensation cap of the error amplifer is C1 and C2, the sawtooth voltage range is 2V. How to calculate the slew rate of error amplifer? thanks.