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Fotofori robusti

Batterie

2-4 x NiMH
2-3 x Alcaline
1 x LiPO
1 x LiFePO
- http://hobbyking.com/hobbyking/store/__32562__Turnigy_nano_tech_2100mAh_2S1P_20C_LiFePo4_Transmitter_Pack_Futaba_T14SG_EU_warehouse_.html
- WINA 8ah http://shop.i-tecc.de/lifepo4-akku-wina-8ah-3-2v.html

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

http://www.cree.com/~/media/files/cree/led%20components%20and%20modules/xlamp/data%20and%20binning/xlamp7090xre.pdf

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

LENTI:

http://www.ebay.it/itm/RESTPOSTEN-LEDIL-Linse-C11917-SATU-O-fur-3-OSRAM-High-Power-LED-Oslon-SSL-80-/361191878955

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)

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

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

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
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

Regolatore LDO

http://www.ti.com/product/lp2980-n 50ma 2.1-V to 16-V Input http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=lp2980-n&fileType=pdf

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