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* input 2.5-5.5v -> 2.73A -> 1.24A | * input 2.5-5.5v -> 2.73A -> 1.24A | ||
* LM3410 http://www.ti.com/lit/ds/symlink/lm3410.pdf | * LM3410 http://www.ti.com/lit/ds/symlink/lm3410.pdf | ||
* R 0.24 Ohm -> 790ma, 0.27 -> 700ma, 0.28 -> 680ma | * R 0.24 Ohm -> 790ma, 0.27 -> 700ma, 0.28 -> 680ma, 0.56 -> 340ma, 0.50 -> 380ma | ||
* Cin 10V - 100uF | * Cin 10V - 100uF | ||
* Cout 25V - 4.7uF | * Cout 25V - 4.7uF | ||
Revision as of 00:19, 8 March 2015
Fotofori robusti
Batterie
- 2-4 x NiMH
- 2-3 x Alcaline
- 1 x LiPO
- 1 x LiFePO
limiti minimi
- Ni-Mh: 0.9 - x 2 = 1.8, x4 = 3.6
- 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
- MCE4WT-A2-0000-000JE7 4 chip, 700 ma max, 110', 3000 k, 320lm @ 350ma
- 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
- http://uk.rs-online.com/web/p/led-prototyping-boards/6675436/ SERIE
- https://www.led-tech.de/en/High-Power-Supply/Circuit-Boards/Star-PCB-for-Cree-MCE-E-Emitters--series-connection--LT-1498_106_111.html Serie
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
- http://www.linear.com/product/LT3593
- http://www.ti.com/lit/ds/symlink/tps61169.pdf 2.7-V to 5.5-V, 38v out, 1.2 A
induttore: (3.3⋅(10−3.3))/((0.3⋅0.7⋅(10/3.3))⋅1600000⋅7)
- http://www.ti.com/lit/an/slva372c/slva372c.pdf
- http://www.daycounter.com/Calculators/Switching-Converter-Calculator.phtml
- http://www.cooperindustries.com/content/dam/public/bussmann/Electronics/Resources/App%20Notes%20and%20Tech%20Info/Coiltronics/BUS_Elx_App_Notes_4031_Switching_Regulators.pdf
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
- http://www.onsemi.com/PowerSolutions/product.do?id=NCP3065
- http://ww1.microchip.com/downloads/en/AppNotes/01047a.pdf Buck-Boost LED Driver Using the PIC16F785 MCU
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 8pin 1pwm touch XLP http://ww1.microchip.com/downloads/en/DeviceDoc/41441B.pdf
- alternative:
- 6 pin: PIC10F322 2pwm, http://ww1.microchip.com/downloads/en/DeviceDoc/40001585B.pdf
- 8 pin: PIC12F1572 3pwm http://www.microchip.com/wwwproducts/Devices.aspx?product=PIC12F1572
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 | 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
Livello Batteria
- http://edeca.net/wp/electronics/measuring-pic-vdd-with-no-external-components-using-the-fvr/
- http://ww1.microchip.com/downloads/en/appnotes/01333a.pdf
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, 700ma:
- potenza: 3⋅3.25⋅0.7=6.825w
- input 2.5-5.5v -> 2.73A -> 1.24A
- LM3410 http://www.ti.com/lit/ds/symlink/lm3410.pdf
- R 0.24 Ohm -> 790ma, 0.27 -> 700ma, 0.28 -> 680ma, 0.56 -> 340ma, 0.50 -> 380ma
- 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:
- ZXSC38 http://diodes.com/datasheets/ZXSC380.pdf
- Duris S 5 http://www.osram-os.com/osram_os/en/products/product-catalog/leds-for-general-lighting/duris-s-5/gw_pslps1.cc/index.jsp
- L 100uH 0.5A