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| author | David Phillips <david@yeah.nah.nz> | 2020-01-02 12:07:50 +1300 |
|---|---|---|
| committer | David Phillips <david@yeah.nah.nz> | 2020-01-02 12:07:50 +1300 |
| commit | 31b928bf45c3f432cdfbe4aaeabbb798bdb58402 (patch) | |
| tree | 26ce83dc27ba9cbe173de241ae5e72f9a13a0f62 | |
| parent | 295347cb01201de0d022414480819af9b9605c32 (diff) | |
| download | led-driver-31b928bf45c3f432cdfbe4aaeabbb798bdb58402.tar.xz | |
Bump to Version 1.1
| -rw-r--r-- | README.md | 5 | ||||
| -rw-r--r-- | led-driver.sch | 5 |
2 files changed, 7 insertions, 3 deletions
@@ -14,6 +14,11 @@ and let the magic smoke out of some components 😜 ## Version history +* **v1.1** (BOM change) + This version changes R2 so that the UVLO is programmed for 43 V turn-on. + This is to avoid over-driving the LEDs when the power supply voltage is + low enough to make the driver incapable of reaching the peak LED current, + which otherwise results in a raising of the average current. * **v1** First, and prototype, revision. Started design in 2017 and finally got around to getting boards manufactured in May 2019 after taking a long diff --git a/led-driver.sch b/led-driver.sch index ba69f40..5d63559 100644 --- a/led-driver.sch +++ b/led-driver.sch @@ -1,13 +1,12 @@ EESchema Schematic File Version 4 -LIBS:led-driver-cache -EELAYER 29 0 +EELAYER 30 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 1 Title "450 mA 17 W Constant Current LED Driver" Date "2017-09-07" -Rev "1" +Rev "1.1" Comp "David Phillips" Comment1 "" Comment2 "" |