Forum Post: LM5046 Used in Current Fed Phase Shift Full Bridge DC Dc Converter
Can Someone give an example of LM5046 Used in Current Fed Phase Shift Full Bridge DC Dc Converter .Specs:Input Voltage 12VOutput Voltage 400VDCThanksMahesh
View ArticleForum Post: RE: TPS61042 CTRL enable Ton time
Thanks for the reply Leonard. The datasheet we were viewing was version SLVS441B. I can see that the spec was updated in version SLVS441C to 50uS so we should be all set.
View ArticleForum Post: RE: bq2002T Fast Charge Management IC has premature charge...
Alan, thank you very much!!! It's amazing how obvious something can seem after someone else points it out. As an engineer with almost 50 years experience in analog signal conditioning and temperature...
View ArticleForum Post: TLE2426, virtural ground current, virtural ground current buffers
Continuing from my recent post: To eliminate noise and distortion in my audio circuit, I am convinced the solution boils down to two things, head room and ground current. I am extremely leary of...
View ArticleForum Post: RE: BQ2084 seal/unseal problem
hi, could you be so kind to forward me this procedure too!!! thank youjohn_burrows8@hotmail.co.uk
View ArticleForum Post: RE: TPS60212 3.3v Charge Pump - Losing Voltage With Currents...
You'll need to double check with a scope, but you might be having either of these issues:Large parasitics from breakout board are causing issues with this high frequency switching power supply. You...
View ArticleForum Post: Problem with TPS2419 when using 3.3V single input , Which...
Hi we are using the TPS2419 Oring controller .Application is to switch 3.3V between main and Emergency 3.3V supplys , so 2 Nos TPS2419 with individual FET used and final output is shorted as given in...
View ArticleForum Post: RE: tps62170 ripple voltage
I forget to attache the waveform in last step.the blue wave is the output of the regulator. yellow has nothing to do with the regulator. I guess it is working in power save mode. how can I reduce the...
View ArticleForum Post: problem about UCD9222's VID
Hi all,In C6678 EVM schematics, I found that one channel of the UCD9222 connected C6678's VID pins. This channel will control the UCD7242 to output the scaled voltage.The other channel of UCD9222 must...
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Forum Post: RE: minimum on-time of TPS54528?
it is 150 nsec typ as you know. I answered your main concern in an email already:If you look at figure 10, you will see that the effective switching frequency decreases as low duty cycles force the ON...
View ArticleForum Post: bq24630 as UPS power path switch
Hi,I'm designing an uninterruptible power supply with 4x LiFePO4 cells and bq24630 as the battery charger.My systems runs on 24V and so, there will be a step-up circuit/block to boost the battery...
View ArticleForum Post: RE: BQ76PL536 - problem with sleep current consumption
Thanks Roger,I managed to solve the problem. After shutting down my main power supply. the pullup of CS\ was not working anymore, resulting in a low-level on CS\.Now, with CS\ pulled high, the devices...
View ArticleForum Post: lm338 boost?
Can the lm338 be used to build a boost circuit with a few capasitors and resistors?It says it can handle up to 12A for a short time, what is a short time? A few seconds or less?Last, can a trimmer of...
View ArticleForum Post: RE: UCD3138 Getting Started & Sample Code
dlydon@ryjenelectronics.co.uk. Thank You for the quick response. Regards Darren
View ArticleForum Post: Resistor current limiting on LM2734X (or any step-down regulator)
Hi,For regulatory issues our design requires a resistor and fuse to limit the amount of current that is able to be pulled from a small 6V SLA battery. This can't be changed.What I would like to know...
View ArticleForum Post: Battery monitor gauge for voltage bus lines in embedded system
For one of our upcoming project, we have a battery pack consisting of 12 Energizer L91(Lithium /Iron disulphide AA Battery). We divide this battery pack into three sets of 2 ,5 and 5. In order to have...
View ArticleForum Post: RE: Output problem of TPS78601
Hi Gianluca,Thank you for your feedback. We will be sure to consider your comments to make the input voltage range more clear for the customer. Since your application does not violate the abs max...
View ArticleForum Post: RE: Adjustable Hi voltage buck converter (LM5019)
Hi Eli,LM5019 has no duty cycle limitation as such. But it has a minimum off time which effiectively limits the duty cycle to a maximum value. Is the output always tracking the input voltage or you can...
View ArticleForum Post: RE: Large output ripple in TPS63020 LED driver simulation
I know this is an old post, but I was wondering if anyone got this to work. I have a working solution, at least in simulation form that seems to solve the oscillation problem quite well. I would like...
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