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LED_Fog_1

Did some more testing on Pepboys Fog LEDs. The Lithium battery supplies 3.4 volts and the regulator in the harness provides 5.7 volts. The regulator does not pulse to increase light output. Wayne looked at it and it is a non linear (linear = quiet) DC to DC buck regulator that is a switching regulator (switching = noisy). In this first scope pic DC = bright lines and hash is haze above and below = noise. Amplitude is ~ 600 to 800 milivolts.
Y9-02-22

Date: 02/22/2009
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Full size: 600x800
LED_Fog_1

Photo Properties

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Make Apple Model iPhone
Aperture Value f/2.8 Color Space sRGB
Date/Time Sun 22 Feb 2009 05:02:12 PM UTC GPS: Latitude 40.797333333333
GPS: Longitude 73.112166666667
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