电筒驱动芯片

cowboy · 发表于 2006-2-20 00:51

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电筒驱动芯片

uFlex_std:
<UL>
<LI>Constant current regulator.
<LI>Ships configured for 1W, 380mA current limit (mild over-drive) or for 5W, 750mA current limit (mild over-drive).
<LI>New feature as of V1.00 of firmware allows the user to reconfigure (via the switch) for 1W or 5W at any time.
<LI>Current limit set in firmware. 8 \'brightness\' levels - from <10mA up to 380mA (1W) or 750mA (5W).
<LI>Non-volatile storage of brightness level.
<LI>Draws <0.3mA when in \'sleep mode\'.
<LI>>85% efficiency.
<LI>Can drive either a single 1W Luxeon or two series connected 1W Luxeons (from minimum of 8V input).
<LI>Can drive either a single Luxeon III or two series connected Luxeon III\'s (from minimum of 8V input).
<LI>Can drive a single 5W Luxeon.
<LI>Operates from 3V to 20V.
<LI>When the input voltage drops below the LED Vf the controller goes into direct drive mode.
<LI>Protected against reverse polarity connection and output short circuit.
<LI>Board is 1.6" x 1.25". </LI></UL>
uFlex_ovd:
<UL>
<LI>Same features at uFlex_std except current limit.
<LI>Ships configured for 1W 500mA current limit (over-drive) or for 5W, 1000mA current limit (over-drive). </LI></UL>
Custom uFlex (5 minimum order):
<UL>
<LI>
User requested current limit - maximum 1000mA. </LI></UL>

uFlex production boards (Sep 2003)
Here\'s a picture of the front & back of the uFlex PCB - 1.6" x 1.25". Yes, lots of them!

cowboy · 发表于 2006-2-20 00:53

电筒驱动芯片

nFlex:
<UL>
<LI>Constant current regulator.
<LI>Ships configured for 1W, 350mA current limit.
<LI>User menu reconfigurable to 350/500/700 or 1000mA at any time.
<LI>Current limit set in firmware. Can be ordered either with Fixed lighting (UIF version, 8 \'brightness\' level) firmware or Flashlight (UIP, 5 \'brightness level) firmware. Refer to nFlex technical section for downloadable PDF manuals. 
<LI>Non-volatile storage of brightness level.
<LI>Draws <0.2mA when in \'sleep mode\'.
<LI>>85% efficiency.
<LI>Can drive either up to 16V of series connected Luxeons (from minimum input = (output voltage + 1.5V)).
<LI>Operates from 4V to 24V.
<LI>Protected against reverse polarity connection and output short circuit.
<LI>Board is 1.1" x 0.8" </LI></UL>
Here\'s a picture of the front & back of an assembled nFlex - 1.1" x 0.8".

cowboy · 发表于 2006-2-20 00:55

电筒驱动芯片

D2DIM Driver (Shipping Aug 2005):
<UL>
<LI>PWM dimming driver (Direct Drive). PWM frequency ~800Hz.
<LI>Maximum input voltage 16V, nominal minimum input voltage 2.7V.
<LI>Nominal 2.7V cutoff for protecting single li-ion cells from overdischarge. 
<LI>Maximum drive current 3.4A (70C ambient) or 4.2A (25C ambient).
<LI>uController based design. 
<LI>Momentary action switch controls User Interface (UI).
<LI>Choice of 2 UI\'s (user selectable).
<LI>Draws ~50uA in sleep mode.
<LI>Board is 0.840" in diameter. </LI></UL>

cowboy · 发表于 2006-2-20 00:57

电筒驱动芯片

Fatman: Production boards Shipping 
<UL>
<LI>Constant current regulator.
<LI>Boost topology (step up converter), must always have a load connected.
<LI>Dimming capability via external potentiometer.
<LI>Onboard trimpot to set maximum output current.
<LI>0.80" diameter board, single sided components. 0.26" maximum thickness. 
<LI>High efficiency (typically 90% or better).
<LI>2.7V - 12V input voltage.
<LI>3V - 16V output voltage.
<LI>Output current 1000mA (max), depends on input/output voltage differential.
<LI>Capable of driving 1 or 2 series connected Luxeon 5W LEDs or 2 to 4 series connected Luxeon 1W or Luxeon 3 LEDs. </LI></UL>

cowboy · 发表于 2006-2-20 01:00

电筒驱动芯片

Dome/Maplight
A LED dome module is constructed by mounting a 1W Luxeon Star to the back of a CC1W Driver board. The pins (left & right sides) are to allow the light to plug into the Dome receptacles of most vehicles that use a standard 1 1/4" festoon bulb. 
See the Installation section for pictures showing how the dome module installs. Pictures of the maplight module (80 series Land Cruiser specific) can be seen there as well.

cowboy · 发表于 2006-2-20 01:01

电筒驱动芯片

CC1W Driver:
<UL>
<LI>Constant current regulator. 350mA current limit. Current limit set by a single resistor (max 500mA).
<LI>Can drive either a single 1W Luxeon or two series connected 1W Luxeons (from minimum of 8V input).
<LI>Operates from 4V to 30V. Draws about 120mA from 12.8V to drive a single 1W Luxeon, draws about 200mA from 12.8V to drive two series connected 1W Luxeons.
<LI>Maximum output voltage 16V. 
<LI>Protected against reverse polarity connection and output short circuit.
<LI>Regulator requires about 1V over the total LED Vf to maintain regulation, current drops when out of regulation.
<LI>Board is 1" x 0.8" </LI></UL>
CC5W Driver:
<UL>
<LI>Constant current regulator. 700mA or 1000mA (specify) current limit. Current limit set by a single resistor (max 1000mA).
<LI>Can drive up to 3 series connected Luxeon III\'s (high voltage output capacitor) or up to 2 series connected Luxeon 5W LEDs. 
<LI>Operates up to 30V.
<LI>Maximum output voltage 16V. 
<LI>Protected against reverse polarity connection and output short circuit.
<LI>Regulator requires about 1V over the total LED Vf to maintain regulation, current drops when out of regulation.
<LI>Board is 1" x 0.8" </LI></UL>

YWROBOT · 发表于 2006-2-20 01:11

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飞长爱你 · 发表于 2006-2-20 02:18

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weywey · 发表于 2006-2-20 07:49

uFlex_std:Operates from 3V to 20V.
nFlex: Operates from 4V to 24V. 
 D2DIM 2.7V - 12V input voltage. 
 CC1W Operates from 4V to 30V. 
 看来电池电压最少也是2.7V以上,没有1.5V或更低的规格.

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