SpeLuce: Difference between revisions
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=== limiti minimi === | === limiti minimi === | ||
Ni-Mh: 0.9 | * Ni-Mh: 0.9 | ||
LiPo: 3.7 senza carico | * LiPo: 3.7 senza carico | ||
LiFePo: 2.5 senza carico | * LiFePo: 2.5 senza carico | ||
== LED == | == LED == |
Revision as of 17:38, 28 January 2015
Fotofori robusti
Batterie
- 2-4 x NiMH
- 2-3 x Alcaline
- 1 x LiPO
- 1 x LiFePO
limiti minimi
- Ni-Mh: 0.9
- LiPo: 3.7 senza carico
- LiFePo: 2.5 senza carico
LED
XLamp XM-L EasyWhite http://www.cree.com/LED-Components-and-Modules/Products/XLamp/Arrays-Directional/XLamp-XML-EasyWhite
- XREWHT-L1-0000-007E7 3000K, 67.2 lm @ 350 mA
- XREWHT-L1-0000-007F8 2900 K
Cree MC-E
4 chip, 700 ma, 110'
http://www.ledrise.com/files/cree%20mc-e.pdf http://www.ledrise.com/product_info.php?info=p655_Cree--MC-E-LED-J-bin-Warm-White-560lm-MCE4WT-A2-0000-000JE7-2cm-Star-PCB.html
LENTI:
Carclo 10193 http://www.carclo-optics.com/optic-10193?ledmanufacturer=cree&ledfamily=mc-e&opticfamily=20mm&beamangle=1%20to%2010%20degrees Carclo 10513
Ostar
LE CW E2B-MXNY-N3P5-I http://docs-europe.origin.electrocomponents.com/webdocs/0a05/0900766b80a0509b.pdf
Oslon
100 - 800 ma, 80', ok per luce prossimita'
http://www.osram-os.com/Graphics/XPic6/00082394_0.pdf/LCW%20CQ7P.CC.pdf 800ma, 80°
PCB
- http://www.led-mounting-bases.com/category.php?id_category=138
- http://www.ledlightforyou.com/News/en-New-OSLON-STAR-PCBs.php
- http://www.ledrise.com/product_info.php?info=p2479_Osram-Oslon-SSL--warmwhite--144lm-1x1-Square-PCB.html
LENTI:
Riflettori
http://www.fraensrl.com/images/Fraen_FRC_Datasheet.pdf
Regolatori
Step up
- http://www.linear.com/product/LTC3490
- http://www.microchip.com/wwwproducts/Devices.aspx?product=MCP1643
- http://www.ti.com/product/tps61085
- http://www.instructables.com/id/Make-a-microcontroller-based-boost-converter/?ALLSTEPS
- http://diodes.com/datasheets/ZXSC380.pdf semplicissimo, 200ma max, ok come emergenza
- http://www.ti.com/product/lm3410 2.5 - 6 v sot23 data sheet
buck
IRLML2502 http://www.irf.com/product-info/datasheets/data/irlml2502.pdf
- http://www.onsemi.com/pub/Collateral/TND388-D.PDF Effects of High Switching Frequency on Buck Regulators
- http://www.ti.com/litv/pdf/snva598 Driving LEDs: To Cap or Not to Cap
- http://ww1.microchip.com/downloads/en/appnotes/01427a.pdf AN1427 High-Efficiency Solutions for Portable LED Lighting
- http://ww1.microchip.com/downloads/en/appnotes/01047a.pdf AN1047 Buck-Boost LED Driver Using the PIC16F785 MCU
- http://www.ti.com/product/lm3405a 1A, 3-22 Vin SOT-6
Buck Boost
Current sensing
- http://ledsmagazine.com/features/10/10/15
- http://www.aosmd.com/res/application_notes/power-ics/PIC-007.pdf Selection of Three Locations of Current Sense Resistor in Buck Converter
Sincrono
- http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en560160 Efficiency Analysis of a Synchronous Buck Converter using Microsoft Office Excel-Based Loss Calculator
High Side Drivers
- http://www.linear.com/product/LTC1982 Micropower High Side Switch Controllers in SOT-23
Asincrono
- duty cycle
- up
- (3.3 ∕ 4.8) = 0.68
- down
- 0.31
- efficienza
- 0.31 ⋅ (0.385 ∕ 3.3) ≈ 0.03 di perdita sul diodo
- http://www.st.com/web/catalog/sense_power/FM64/CL1571/SC541/SS1617/PF64858 Low Drop Power Schottky Rectifier 1A/0.385vf
- http://www.st.com/web/catalog/sense_power/FM64/CL1571/SC541/SS1617/PF64876 2A/0.43vf
Diodi
- http://www.diodes.com/datasheets/BAT750.pdf SOT23 40V 750mA
- STPS3L60S 3A SCHOTTKY http://www.st.com/web/catalog/sense_power/FM64/CL1571/SC541/SS1617/PF64890?referrer=70071840
uC
pic12f1840 http://ww1.microchip.com/downloads/en/DeviceDoc/41441B.pdf
Mappa pin
Pin | Funzione | Nome | porta sul uC | I/O |
---|---|---|---|---|
1 | VDD | |||
2 | pwm_spot | P1A | RA5 | O |
3 | pwm_flood | P1B | RA4/AN3 | O |
4 | led/mclr | MCLR | RA3/MCLR | O |
5 | battery | RA2/AN2 | I | |
6 | sw_flood/cps_flood/ICSPCLK | RA1/AN1 | I | |
7 | sw_spot/cps_spot/ICSPDAT | RA0/AN0 | I | |
8 | Vss |
- http://www.element14.com/community/servlet/JiveServlet/downloadBody/27644-102-1-76820/01138A.pdf
- http://ww1.microchip.com/downloads/en/devicedoc/41214a.pdf PICmicro® CCP and ECCP Tips 'n Tricks
- http://www.epd-ee.eu/article/8346 10 LED Driver Problems Solved by the PIC12HV752 MCU
Capacitive Touch Sensing
http://ww1.microchip.com/downloads/en/AppNotes/00001334B.pdf Techniques for Robust Touch Sensing Design
- http://ww1.microchip.com/downloads/en/appnotes/01171c.pdf How To Use The Capacitive Sensing Module (CSM)
- http://ww1.microchip.com/downloads/en/AppNotes/01103a.pdf Software Handling for Capacitive Sensing
Prototipo
Boost 2.7-5.5V, 350mA:
- due led 350 ma serie
- LM3410 http://www.ti.com/lit/ds/symlink/lm3410.pdf
- D http://www.diodes.com/datasheets/BAT750.pdf SOT23 40V 750mA
- L 10uH 1.2A (http://uk.rs-online.com/web/p/wire-wound-surface-mount-inductors/0573652/ nel proto)
- R 0.56 Ohm
Boost 2.7-5.5V, 790ma:
- 1 x XLamp XM-L EasyWhite http://www.cree.com/LED-Components-and-Modules/Products/XLamp/Arrays-Directional/XLamp-XML-EasyWhite
- LM3410 http://www.ti.com/lit/ds/symlink/lm3410.pdf
- R 0.24 Ohm -> 790ma, 0.27 -> 700ma, 0.28 -> 680ma
- Cin 10V - 100uF
- Cout 25V - 4.7uF
- L 13R333C 33uH 1.8A
- STPS3L60S 3 SCHOTTKY http://www.st.com/web/catalog/sense_power/FM64/CL1571/SC541/SS1617/PF64890?referrer=70071840
Boost 0.8-6V, 100ma: