Difference between revisions of "Power"
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==DC Supply== | |||
The AXIOM Beta | ===DC Supply=== | ||
The AXIOM Beta developer kits ship with 5V DC power supply. | |||
AXIOM Beta takes two 5V inputs (1x Microzed, 1x rest of electronics) and together draws 4A max, power consumption depends on operation and is in the 10-20 W range typically. | AXIOM Beta takes two 5V inputs (1x Microzed, 1x rest of electronics) and together draws 4A max, power consumption depends on operation and is in the 10-20 W range typically. | ||
==Batteries== | |||
With batteries | |||
===DC/DC Converter=== | |||
Two 5V 2.5A output converters should be suitable. | |||
For batteries both isolated as well as non-isolated DC converters are suitable. | |||
https://octopart.com/search?q=171050601 would be an option. | |||
===Active Battery Mount=== | |||
[[File:Axiom-beta-concept-enlosure-02 - above.png| 400px]] | |||
Battery mount for NP-F970/F750/F550 batteries to power the AXIOM Beta. Includes power usage and capacity monitoring to estimate remaining charge and time remaining. | |||
'''InfoLithium Protocol''' | |||
Proprietary protocol from Sony that exchanges metadata between batteries and devices. Expected data inside the protocol includes: charge cycles, battery ID, remaining total capacity, remaining current capacity, etc. Only official Sony batteries incorporate this protocol, cheap replacement parts don't and some Pro Sony cameras refuse operation with batteries without InfoLithium communication. | |||
Decrypting this protocol could give us more insight into the battery but is not essential as we can measure the discharge curve and estimate remaining capacity rather accurately that way. | |||
'''Hacking References''' | |||
* http://randybuildsthings.wordpress.com/2013/02/25/sony-infolithium-m-teardown/ | |||
* http://www.dpreview.com/forums/post/4296759 | |||
===Batteries=== | |||
With batteries the conveniences are being able to: | |||
*measure power consumption (AXIOM Beta does that already) | *measure power consumption (AXIOM Beta does that already) | ||
| Line 11: | Line 46: | ||
*set low voltage warning level | *set low voltage warning level | ||
===Sony NP-F*00=== | An external battery needs to provide two clean and accurate 5V supplies rated at 2 Amps or more. We have witnessed a battery that could not provide the required peak currents and resulted in visible horizontal "wave" noise artifacts being visible in the image of the Beta. | ||
[[File:Sony_NPF970_1308575013000_352125.jpg | | |||
For connecting the Beta to dual USB power supplies a custom-built cable is required: | |||
[[File:Dual-USB-Power-cable-01.jpg| 1150px]] | |||
'''Components List:''' | |||
<pre style="white-space: pre-wrap"> | |||
1x Molex 87439-0500 Pico Spox 5pin Housing | |||
4x Molex 87421-0000 Pico Spox Crimp Terminal AWG24 | |||
4x 19x36AWG - 45x40AWG 24AWG Flexible Cable | |||
2x CNC Tech 1002-024-01300 CONN USB A TYPE SOLDER ASSY | |||
2x CNC-Tech 1001-027-BL-01000 CONN HOOD USB A MALE BLACK | |||
CNC-Tech 1001-026-BE-01000 CONN HOOD USB A MALE BEIGE | |||
</pre> | |||
We have successfully tested the following USB battery packs with the [[AXIOM Beta]] so far: | |||
https://www.amazon.de/Anker-PowerCore-20100mAh-Externer-Akku/dp/B00VJT3IUA/ | |||
When evaluating a new battery/power supply we recommend using two USB power meters between camera and battery: https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Delectronics&field-keywords=usb+current+meter | |||
====Sony NP-F*00==== | |||
[[File:Sony_NPF970_1308575013000_352125.jpg | 200px| thumb | 200px]] | |||
* Dimensions: 70 x 38.5 x Depth mm (depth varies with capacity). | |||
* Voltage: 7.2 - 7.4V | |||
* Capacity: 2600mAh (~20Wh) - 6600mAh (~48Wh) | |||
3D Model: [https://cad.onshape.com/documents/378fdc7cb1bbff982219eee3/w/09323a194f01c81168e0369a/e/45714b1530f14e92fe5f37b5 OnShape] | |||
On Labs: [https://lab.apertus.org/T736 Battery System] | |||
---- | |||
[[Category:AXIOM Beta]] | |||
[[category: Power]] | |||
[[category: Batteries]] | |||
[[Category:Hardware]] | |||
[[category: Research Pending]] | |||
Latest revision as of 12:50, 2 May 2020
1 DC Supply
The AXIOM Beta developer kits ship with 5V DC power supply.
AXIOM Beta takes two 5V inputs (1x Microzed, 1x rest of electronics) and together draws 4A max, power consumption depends on operation and is in the 10-20 W range typically.
2 DC/DC Converter
Two 5V 2.5A output converters should be suitable.
For batteries both isolated as well as non-isolated DC converters are suitable.
https://octopart.com/search?q=171050601 would be an option.
3 Active Battery Mount
Battery mount for NP-F970/F750/F550 batteries to power the AXIOM Beta. Includes power usage and capacity monitoring to estimate remaining charge and time remaining.
InfoLithium Protocol
Proprietary protocol from Sony that exchanges metadata between batteries and devices. Expected data inside the protocol includes: charge cycles, battery ID, remaining total capacity, remaining current capacity, etc. Only official Sony batteries incorporate this protocol, cheap replacement parts don't and some Pro Sony cameras refuse operation with batteries without InfoLithium communication.
Decrypting this protocol could give us more insight into the battery but is not essential as we can measure the discharge curve and estimate remaining capacity rather accurately that way.
Hacking References
- http://randybuildsthings.wordpress.com/2013/02/25/sony-infolithium-m-teardown/
- http://www.dpreview.com/forums/post/4296759
4 Batteries
With batteries the conveniences are being able to:
- measure power consumption (AXIOM Beta does that already)
- estimate time left for operation (AXIOM Beta measures voltages - it still requires an algorithmn that turns the discharge curve into a time estimate)
- set low voltage warning level
An external battery needs to provide two clean and accurate 5V supplies rated at 2 Amps or more. We have witnessed a battery that could not provide the required peak currents and resulted in visible horizontal "wave" noise artifacts being visible in the image of the Beta.
For connecting the Beta to dual USB power supplies a custom-built cable is required:
Components List:
1x Molex 87439-0500 Pico Spox 5pin Housing
4x Molex 87421-0000 Pico Spox Crimp Terminal AWG24
4x 19x36AWG - 45x40AWG 24AWG Flexible Cable
2x CNC Tech 1002-024-01300 CONN USB A TYPE SOLDER ASSY
2x CNC-Tech 1001-027-BL-01000 CONN HOOD USB A MALE BLACK
CNC-Tech 1001-026-BE-01000 CONN HOOD USB A MALE BEIGE
We have successfully tested the following USB battery packs with the AXIOM Beta so far:
https://www.amazon.de/Anker-PowerCore-20100mAh-Externer-Akku/dp/B00VJT3IUA/
When evaluating a new battery/power supply we recommend using two USB power meters between camera and battery: https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Delectronics&field-keywords=usb+current+meter
4.1 Sony NP-F*00
- Dimensions: 70 x 38.5 x Depth mm (depth varies with capacity).
- Voltage: 7.2 - 7.4V
- Capacity: 2600mAh (~20Wh) - 6600mAh (~48Wh)
3D Model: OnShape
On Labs: Battery System