the_doc735 Posted January 11, 2019 Share Posted January 11, 2019 ....Is a lipo battery with all the benefits of graphene technology (added), a superior power supply to SMPS? Cheers! Link to comment
Popular Post Hauser Posted January 11, 2019 Popular Post Share Posted January 11, 2019 If you are interested in battery power supplies, Lifepo4 A123 batteries have been considered favourably. There is currently a group buy on DIYaudio for a supply designed by Iancanada. Suggest you apply some research to that thread. Martin. jabbr and the_doc735 2 Link to comment
marce Posted January 11, 2019 Share Posted January 11, 2019 Are there readily available graphene batteries yet.... Link to comment
the_doc735 Posted January 11, 2019 Author Share Posted January 11, 2019 2 hours ago, marce said: Are there readily available graphene batteries yet.... yes Link to comment
the_doc735 Posted January 11, 2019 Author Share Posted January 11, 2019 4 hours ago, marce said: Are there readily available graphene batteries yet.... https://hobbyking.com/en_us/catalogsearch/result/?cat=&q=graphene Link to comment
Ralf11 Posted January 11, 2019 Share Posted January 11, 2019 Here is a link that may allow some of the more gullible here to filter thru the BS. https://www.graphene-info.com/graphene-batteries the_doc735 1 Link to comment
Popular Post mansr Posted January 11, 2019 Popular Post Share Posted January 11, 2019 Regardless of battery technology, you're going to need a regulator which will dominate the characteristics of the power supply. tmtomh, lucretius and the_doc735 2 1 Link to comment
tims Posted January 11, 2019 Share Posted January 11, 2019 8 minutes ago, mansr said: Regardless of battery technology, you're going to need a regulator which will dominate the characteristics of the power supply. Not with this design: https://www.diyaudio.com/forums/power-supplies/327105-develop-ultra-capacitor-power-supply-lifepo4-battery-power-supply.html#post5540295 the_doc735 1 Link to comment
Popular Post mansr Posted January 11, 2019 Popular Post Share Posted January 11, 2019 10 minutes ago, tims said: Not with this design: https://www.diyaudio.com/forums/power-supplies/327105-develop-ultra-capacitor-power-supply-lifepo4-battery-power-supply.html#post5540295 Batteries don't supply a constant voltage. Most circuits require a constant supply voltage. Ergo, a regulator is required. lucretius and the_doc735 1 1 Link to comment
marce Posted January 11, 2019 Share Posted January 11, 2019 7 hours ago, the_doc735 said: yes Nope, the question was rhetorical. Those batteries are not graphene batteries. the_doc735 1 Link to comment
Popular Post marce Posted January 11, 2019 Popular Post Share Posted January 11, 2019 8 minutes ago, mansr said: Batteries don't supply a constant voltage. Most circuits require a constant supply voltage. Ergo, a regulator is required. I have been shot down many times for mentioning this... The voltage drop as they discharge is always forgotten, as well as noise. lucretius, phosphorein and tmtomh 3 Link to comment
Ralf11 Posted January 11, 2019 Share Posted January 11, 2019 I always used a higher voltage battery than needed and regulated it down... not for audio use tho. the_doc735 1 Link to comment
Popular Post mansr Posted January 12, 2019 Popular Post Share Posted January 12, 2019 21 minutes ago, Ralf11 said: I always used a higher voltage battery than needed and regulated it down... not for audio use tho. Is there any other way? marce, the_doc735, phosphorein and 1 other 3 1 Link to comment
Superdad Posted January 12, 2019 Share Posted January 12, 2019 5 hours ago, Ralf11 said: Here is a link that may allow some of the more gullible here to filter thru the BS. https://www.graphene-info.com/graphene-batteries Well I've been following graphene supercapacitor development for a couple of years, but now there is some development of hemp-enhanced supercapacitors which might outperform graphene: https://www.graphene-info.com/hemp-based-electrodes-outperform-graphene-ones Maybe the hemp ones will be more "mellow." the_doc735 1 UpTone Audio LLC Link to comment
rickca Posted January 12, 2019 Share Posted January 12, 2019 13 minutes ago, Superdad said: now there is some development of hemp-enhanced supercapacitors which might outperform graphene So good they ought to be illegal. the_doc735 1 Pareto Audio AMD 7700 Server --> Berkeley Alpha USB --> Jeff Rowland Aeris --> Jeff Rowland 625 S2 --> Focal Utopia 3 Diablos with 2 x Focal Electra SW 1000 BE subs i7-6700K/Windows 10 --> EVGA Nu Audio Card --> Focal CMS50's Link to comment
Daccord Posted January 12, 2019 Share Posted January 12, 2019 1 minute ago, rickca said: So good they ought to be illegal. Link to comment
Ralf11 Posted January 12, 2019 Share Posted January 12, 2019 2 hours ago, mansr said: Is there any other way? Yes, bigger batteries PeterSt 1 Link to comment
PeterSt Posted January 12, 2019 Share Posted January 12, 2019 3 hours ago, Ralf11 said: not for audio use tho. Lush^3-e Lush^2 Blaxius^2.5 Ethernet^3 HDMI^2 XLR^2 XXHighEnd (developer) Phasure NOS1 24/768 Async USB DAC (manufacturer) Phasure Mach III Audio PC with Linear PSU (manufacturer) Orelino & Orelo MKII Speakers (designer/supplier) Link to comment
Tomslin Posted January 12, 2019 Share Posted January 12, 2019 11 hours ago, mansr said: Batteries don't supply a constant voltage. Most circuits require a constant supply voltage. Ergo, a regulator is required. It’s a generalization. “Batteries don’t supply a constant voltage”, yes. "Requirements for most circuits", yes, but for most devices, no. Therefore, most devices such as usb cards, ethernet cards, ddc, dac etc, can be powered with a voltage in a wider range than as stated as supply voltage. Batteries with voltages that falls within this range therefore work well without a regulator. The reason is that most devices already have built-in regulators, also applies to all motherboards. the_doc735 1 Link to comment
Popular Post mansr Posted January 12, 2019 Popular Post Share Posted January 12, 2019 2 hours ago, Tomslin said: It’s a generalization. “Batteries don’t supply a constant voltage”, yes. "Requirements for most circuits", yes, but for most devices, no. Therefore, most devices such as usb cards, ethernet cards, ddc, dac etc, can be powered with a voltage in a wider range than as stated as supply voltage. Batteries with voltages that falls within this range therefore work well without a regulator. The reason is that most devices already have built-in regulators, also applies to all motherboards. You're not making a lot of sense. A regulator internal to the powered device is still a regulator and will be what determines the quality of power supplied to the main circuitry. 4est and the_doc735 1 1 Link to comment
Tomslin Posted January 12, 2019 Share Posted January 12, 2019 29 minutes ago, mansr said: You're not making a lot of sense. A regulator internal to the powered device is still a regulator and will be what determines the quality of power supplied to the main circuitry. Yes it’s true. It's often these internal regulators determine the quality of a particular device. But a battery without a regulator can actually be better power supply for a device than the same with one. And provide better SQ. That's the difference I wanted to present. the_doc735 1 Link to comment
sandyk Posted January 12, 2019 Share Posted January 12, 2019 With careful design of the voltage regulator, you should be able to regulate the battery voltage down to the required voltage, then into the appropriate number of series connected UltraCaps instead of normal electrolytic capacitors. the_doc735 1 How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file. PROFILE UPDATED 13-11-2020 Link to comment
the_doc735 Posted January 13, 2019 Author Share Posted January 13, 2019 On 1/11/2019 at 9:29 AM, Hauser said: If you are interested in battery power supplies, Lifepo4 A123 batteries have been considered favourably. There is currently a group buy on DIYaudio for a supply designed by Iancanada. Suggest you apply some research to that thread. Martin. I didn't ask about Lifepo4 A123 batteries, I asked about graphene? Link to comment
the_doc735 Posted January 13, 2019 Author Share Posted January 13, 2019 On 1/11/2019 at 8:39 PM, Ralf11 said: Here is a link that may allow some of the more gullible here to filter thru the BS. https://www.graphene-info.com/graphene-batteries massive article! - thanks for the history lesson! Good info mate! However, what I asked was graphene VS smps power production comparisons? Link to comment
the_doc735 Posted January 13, 2019 Author Share Posted January 13, 2019 On 1/11/2019 at 10:17 PM, mansr said: Regardless of battery technology, you're going to need a regulator which will dominate the characteristics of the power supply. Batteries don't supply a constant voltage. Most circuits require a constant supply voltage. Ergo, a regulator is required. Including this? https://www.diyaudio.com/forums/power-supplies/327105-develop-ultra-capacitor-power-supply-lifepo4-battery-power-supply.html#post5540295 ??? Link to comment
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