From aa54c194ff5e3fa2f42909f4eb5c27d1b1366dc4 Mon Sep 17 00:00:00 2001 From: jaseg Date: Sun, 19 Mar 2023 23:41:06 +0100 Subject: Make images on dark mode darker --- content/blog/multichannel-led-driver/index.rst | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) (limited to 'content/blog/multichannel-led-driver/index.rst') diff --git a/content/blog/multichannel-led-driver/index.rst b/content/blog/multichannel-led-driver/index.rst index 7de03d5..86fab72 100644 --- a/content/blog/multichannel-led-driver/index.rst +++ b/content/blog/multichannel-led-driver/index.rst @@ -376,15 +376,16 @@ the resulting brightness curve below. .. raw:: html -
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Calculated brightness curve for the uncorrected BCM setup. As you can see, at low setpoints the result is about as smooth as sandpaper, which is well in line with our observations. At high setpoints the offset gets swamped out and the nonlinearity in the low bits is not visible anymore.
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Brightness curve for the corrected BCM setup extrapolated using actual measurements. Looks as buttery @@ -392,7 +393,7 @@ the resulting brightness curve below.
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+ .. _BPW34: http://www.vishay.com/docs/81521/bpw34.pdf .. _MCP6002: http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf @@ -431,19 +432,20 @@ Conclusion .. raw:: html -
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A picture of the LED driver schematic
The LED driver schematic
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A picture of the LED driver PCB layout
The LED driver PCB layout
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+ Putting some thought into the control circuitry and software, you can easily control large numbers of channels of LEDs using extremely inexpensive driving hardware without any compromises on dynamic range. The design we settled on can -- cgit