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update errata

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Sebastien Bourdeauducq 2018-02-11 20:30:25 +08:00
parent dcb5321e82
commit 7b9594f81a
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hardware/errata.md
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@ -37,10 +37,10 @@ Rev 1
* review choice of filament flyback output diode * review choice of filament flyback output diode
* invert LED position so that the Ethernet LED is closest to the connector * invert LED position so that the Ethernet LED is closest to the connector
* invert polarity of LEDs (Ethernet LED polarity cannot be programmed) * invert polarity of LEDs (Ethernet LED polarity cannot be programmed)
* Meanwell DC/DC is coupling noise into pA input
* change D351 model to MBR1645 * change D351 model to MBR1645
* add snubber on D351 * add snubber on D351
* add heatsink (Seifert-KK633) to D351 * add heatsink (Seifert-KK633) to D351
* move D351 further away from transformer for heatsink clearance * move D351 further away from transformer for heatsink clearance
* add plated-through holes and pads for mounting rods of BNC connector * add plated-through holes and pads for mounting rods of BNC connector
* simplify FBI circuit, 2 ranges only (typ. 8mA and 45mA), remove diodes and neglect MOSFET leakage * simplify FBI circuit, 2 ranges only (typ. 8mA and 45mA), remove diodes and neglect MOSFET leakage
* to support different case designs, replace the holes on the connectors side with slots. One of the case designs requires holes whose center is at 11.5mm from the board edge.