cowboy 发表于 2006-2-20 00:51

电筒驱动芯片

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<P><B><FONT face="Lucida Console" size=4>uFlex_std:</FONT></B></P>
<UL>
<LI><FONT face=Verdana>Constantcurrent regulator.</FONT>
<LI><FONT face=Verdana>Ships configured for 1W, 380mA current limit (mild over-drive) or for 5W, 750mA current limit (mild over-drive).</FONT>
<LI><FONT face=Verdana>New feature as of V1.00 of firmware allows the user to reconfigure (via the switch) for 1W or 5W at any time.</FONT>
<LI><FONT face=Verdana>Current limit set in firmware. 8 \'brightness\' levels - from &lt;10mA up to 380mA(1W) or 750mA (5W).</FONT>
<LI><FONT face=Verdana>Non-volatile storage of brightness level.</FONT>
<LI><FONT face=Verdana>Draws &lt;0.3mA when in \'sleep mode\'.</FONT>
<LI><FONT face=Verdana>&gt;85% efficiency.</FONT>
<LI><FONT face=Verdana>Can drive either a single 1W Luxeon or two series connected 1W Luxeons (from minimum of 8V input).</FONT>
<LI><FONT face=Verdana>Can drive either a single Luxeon III or two series connected Luxeon III\'s (from minimum of 8V input).</FONT>
<LI><FONT face=Verdana>Can drive a single 5W Luxeon.</FONT>
<LI><FONT face=Verdana>Operates from 3V to 20V.</FONT>
<LI><FONT face=Verdana>When the input voltage drops below the LED Vf the controller goes into direct drive mode.</FONT>
<LI><FONT face=Verdana>Protected against reverse polarity connection and output short circuit.</FONT>
<LI><FONT face=Verdana>Board is 1.6"x 1.25".</FONT> </LI></UL>
<P><B><FONT face="Lucida Console" size=4>uFlex_ovd:</FONT></B></P>
<UL>
<LI><FONT face=Verdana>Same features at uFlex_std except current limit.</FONT>
<LI><FONT face=Verdana>Ships configured for 1W 500mA current limit (over-drive) or for 5W, 1000mA current limit (over-drive).</FONT> </LI></UL>
<P><B><FONT face="Lucida Console" size=4>Custom uFlex (5 minimum order):</FONT></B></P>
<UL>
<LI>
<P align=left><FONT face=Verdana>User requested current limit - maximum 1000mA.</FONT> </P></LI></UL>
<P align=center><U><B><FONT face="Comic Sans MS" size=5></FONT></B></U></P>
<P><B><FONT face="Comic Sans MS" size=4>uFlex production boards (Sep 2003)</FONT></B></P>
<P align=left><FONT face=Verdana>Here\'s a picture of the front &amp; back of the uFlex PCB - 1.6" x 1.25". Yes, lots of them!</FONT> </P>

cowboy 发表于 2006-2-20 00:53

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<P><B><FONT face="Lucida Console" size=4>nFlex:</FONT></B></P>
<UL>
<LI><FONT face=Verdana>Constantcurrent regulator.</FONT>
<LI><FONT face=Verdana>Ships configured for 1W, 350mA current limit.</FONT>
<LI><FONT face=Verdana>User menu reconfigurable to 350/500/700 or 1000mA at any time.</FONT>
<LI><FONT face=Verdana>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. </FONT>
<LI><FONT face=Verdana>Non-volatile storage of brightness level.</FONT>
<LI><FONT face=Verdana>Draws &lt;0.2mA when in \'sleep mode\'.</FONT>
<LI><FONT face=Verdana>&gt;85% efficiency.</FONT>
<LI><FONT face=Verdana>Can drive either up to 16V of series connected Luxeons (from minimum input = (output voltage + 1.5V)).</FONT>
<LI><FONT face=Verdana>Operates from 4V to 24V.</FONT>
<LI><FONT face=Verdana>Protected against reverse polarity connection and output short circuit.</FONT>
<LI><FONT face=Verdana>Board is 1.1"x 0.8"</FONT> </LI></UL>
<P align=left><FONT face=Verdana>Here\'s a picture of the front &amp; back of an assembled nFlex - 1.1" x 0.8".</FONT> </P>

cowboy 发表于 2006-2-20 00:55

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<P><FONT face="Lucida Console" size=4><B>D2DIM Driver (Shipping Aug 2005):</B></FONT></P>
<UL>
<LI><FONT face=Verdana>PWM dimming driver (Direct Drive). PWM frequency ~800Hz.</FONT>
<LI><FONT face=Verdana>Maximum input voltage 16V, nominal minimum input voltage 2.7V.</FONT>
<LI><FONT face=Verdana>Nominal 2.7V cutoff for protecting single li-ion cells from overdischarge. </FONT>
<LI><FONT face=Verdana>Maximum drive current 3.4A (70C ambient) or 4.2A (25C ambient).</FONT>
<LI><FONT face=Verdana>uController based design. </FONT>
<LI><FONT face=Verdana>Momentary action switch controls User Interface (UI).</FONT>
<LI><FONT face=Verdana>Choice of 2 UI\'s (user selectable).</FONT>
<LI><FONT face=Verdana>Draws ~50uA in sleep mode.</FONT>
<LI><FONT face=Verdana>Board is 0.840" in diameter.</FONT> </LI></UL>
<P><FONT face="Lucida Console" size=4></FONT></P>

cowboy 发表于 2006-2-20 00:57

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<P style7 style1 style7"><B><FONT face="Lucida Console" size=4>Fatman: Production boards Shipping </FONT></B></P>
<UL>
<LI><FONT face=Verdana>Constant current regulator.</FONT>
<LI><FONT face=Verdana>Boost topology (step up converter), must always have a load connected.</FONT>
<LI><FONT face=Verdana>Dimming capability via external potentiometer.</FONT>
<LI><FONT face=Verdana>Onboard trimpot to set maximum output current.</FONT>
<LI><FONT face=Verdana>0.80" diameter board, single sided components. 0.26" maximum thickness. </FONT>
<LI><FONT face=Verdana>High efficiency (typically 90% or better).</FONT>
<LI><FONT face=Verdana>2.7V - 12V input voltage.</FONT>
<LI><FONT face=Verdana>3V - 16V output voltage.</FONT>
<LI><FONT face=Verdana>Output current 1000mA (max), depends on input/output voltage differential.</FONT>
<LI><FONT face=Verdana>Capable of driving 1 or 2 series connected Luxeon 5W LEDs or 2 to 4 series connected Luxeon 1W or Luxeon 3 LEDs.</FONT> </LI></UL>

cowboy 发表于 2006-2-20 01:00

<P><BR>Dome/Maplight</P>
<P align=left><FONT face=Verdana>A LED dome module is constructed by mounting a 1W Luxeon Star to the back of a CC1W Driver board. The pins (left &amp; 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. </FONT></P>
<P align=left><FONT face=Verdana>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. </FONT></P>
<P align=center> </P>

cowboy 发表于 2006-2-20 01:01

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

YWROBOT 发表于 2006-2-20 01:11

飞长爱你 发表于 2006-2-20 02:18

weywey 发表于 2006-2-20 07:49

<FONT face=Verdana>
<P><B><FONT face="Lucida Console" size=4>uFlex_std:</FONT></B>Operates from 3V to 20V.</FONT></P><FONT face=Verdana>
<P><B><FONT face="Lucida Console" size=4>nFlex:</FONT></B>   Operates from 4V to 24V. </FONT></P>
<P><FONT face=Verdana> <STRONG><FONT face="Lucida Console" size=4>D2DIM </FONT></STRONG> 2.7V - 12V input voltage. </FONT></P>
<P><FONT face=Verdana> <STRONG><FONT face="Lucida Console" size=4>CC1W</FONT></STRONG>Operates from 4V to 30V.</FONT></P>
<P><FONT face=Verdana> 看来电池电压最少也是2.7V以上,没有1.5V或更低的规格.</FONT></P>
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