tag:blogger.com,1999:blog-4429789698339059066.post2617279287525399101..comments2024-02-27T06:59:55.973-08:00Comments on Yuriy's Toys: Battery Backup For DRO InterfaceYuriyhttp://www.blogger.com/profile/11394499166280606198noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-4429789698339059066.post-2013859952789557062017-02-12T15:37:28.098-08:002017-02-12T15:37:28.098-08:00Yes. You don't want to power the whole board a...Yes. You don't want to power the whole board and you definitely don't want to accidentally charge the battery.Yuriyhttps://www.blogger.com/profile/11394499166280606198noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-72849570502908945062017-02-12T15:22:39.988-08:002017-02-12T15:22:39.988-08:00Ok never mind, I think I see the reason, is it to ...Ok never mind, I think I see the reason, is it to prevent the battery from backflowing into the board?Anonymoushttps://www.blogger.com/profile/10009491443751334792noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-49947294760122967112017-02-12T15:20:31.115-08:002017-02-12T15:20:31.115-08:00Hi Yuriy,
I just finally got my project assembled ...Hi Yuriy,<br />I just finally got my project assembled and I am installing this battery set up now. Just curious, is it necessary to have two diodes? As I look at the set up it looks as though the diode that prohibits backflow to the battery is the only one that is necessary. Am I seeing this incorrectly? Thanks again for all the great information!<br />JamesAnonymoushttps://www.blogger.com/profile/10009491443751334792noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-3275815917225913712016-02-28T16:59:39.441-08:002016-02-28T16:59:39.441-08:00Any diode should work but Schottky would be better...Any diode should work but Schottky would be better since it has lower voltage drop.<br />If there is flow to the batteries, they can (and probably will) explode, even if they are rechargeable.Yuriyhttps://www.blogger.com/profile/11394499166280606198noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-64584410401951281482016-02-28T06:55:08.980-08:002016-02-28T06:55:08.980-08:00Can you please suggest a diode for d1 or will any ...Can you please suggest a diode for d1 or will any diode work? if it is to charge is there not a need for power to flow into the battery's? with standard diode in d1 no flow to battery i understand about the rechargeable needing to use 3 batteries<br /><br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-67100419297796172962014-03-14T01:49:30.938-07:002014-03-14T01:49:30.938-07:00Hi Yuriy,
great project!
I'm about to put this...Hi Yuriy,<br />great project!<br />I'm about to put this together and was looking for the MSP Launchpad. I found a Launchpad with MSP-EXP430G2, this one: http://www.watterott.com/de/MSP430-LaunchPad-MSP-EXP430G2<br />Would that work?<br />Cheers,<br />AlexAlex Weberhttps://www.blogger.com/profile/03882309409659374302noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-68466943661318610292014-03-03T18:54:11.803-08:002014-03-03T18:54:11.803-08:00Zach,
Three batteries will amount to about 3.6V; t...Zach,<br />Three batteries will amount to about 3.6V; the regulator will output 3.3V. If you use the same two diodes, the batteries will be powering the whole unit until they discharge below 3.3V. If you use a diode with 1.2V dropout from the batteries and one with 0.6V dropout for the regulator, the final voltages will be 2.4V and 2.6V respectively.<br />Does this make sense?<br />Regards <br />Yuriy Yuriyhttps://www.blogger.com/profile/11394499166280606198noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-67642512587625426522014-03-03T11:32:00.665-08:002014-03-03T11:32:00.665-08:00Yuriy,
First and foremost, thank you for putting t...Yuriy,<br />First and foremost, thank you for putting this project together, it has helped me tremendously. Secondly, I have a question regarding the statement: "Side note, if you wish to use rechargeable batteries, you'll need to use three cells, since they are rated at 1.2 when fully charged. Additionally, use standard (not Schottky) diode in D1 position." What specifications do you recommend for the diode at D1 when used in that capacity? <br />Thanks,<br />Zach<br /><br />Zachnoreply@blogger.com