ffef1886d1
Improve layout
2020-11-27 23:23:40 +01:00
1375a5c914
Reannotate components
2020-11-27 22:26:34 +01:00
c932da7d41
First draft of v1.3 schematic and layout
2020-11-27 22:22:05 +01:00
a0e6691255
Schematic finished for v1.3
2020-11-23 18:05:27 +01:00
0137cfd489
Add solder jumper to bridge 3V3 digital supply filter
2020-11-17 19:12:09 +01:00
13ba733671
Merge branch 'master' into v1.3-dev
2020-11-17 19:08:11 +01:00
07e0ea3191
Change schematic for v1.3
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* Use DCDC buck converter for digital 3V3 supply.
* Add shielding for OPAmp section
* Change frontend amplifier to an instrumentation amplifier design
2020-11-17 18:59:20 +01:00
be3c30d734
Rescue symbol
2020-11-08 19:58:10 +01:00
e6905a50d2
remove onewire Temp sensor
2020-07-05 18:24:38 +02:00
b0ceb0adb7
Add 3d Models to repo
2020-07-05 18:17:55 +02:00
ff81a12896
Make 230V port wider and add eeprom for config
2020-04-14 21:23:59 +02:00
e18bc9558c
Add 3 model for ls
2020-04-14 21:23:14 +02:00
5aae90d02f
Add lightguide 3d models
2020-04-14 21:22:16 +02:00
ad76421309
Add attend micro sd 3d models
2020-04-14 21:22:02 +02:00
d6eaf980c9
Add current date and revision to schematic
2020-02-18 20:52:50 +01:00
bcc4ae3126
Add git url
2020-02-18 20:51:03 +01:00
6f93679416
Add vias to erath net
2020-02-18 20:45:31 +01:00
c35760c5dd
Export gerbers with tented vias
2020-02-18 20:40:21 +01:00
e60811b49b
add GND points near test points to get good ground connection
2020-02-18 20:37:26 +01:00
3629ac7581
layout improvements
2020-02-18 20:25:29 +01:00
9da3edbf16
Re-enumerate components. This finilizes draft version for V1.2
2020-02-18 20:19:59 +01:00
c7b61d2e06
remove selectable voltage level for level shifter on LCB bus. This does not work
2020-02-18 20:12:22 +01:00
adf0a2afb9
Improve ESD protection of DIGIO Pins
2020-02-17 20:40:35 +01:00
f1897d8342
Improve schematic and corresponding layout
2020-02-16 00:10:01 +01:00
a67ada8ddf
Rework stability compensation of opamp
2020-02-06 21:36:27 +01:00
20780781e9
Replace all MCP6V31U with MCP6V34. It's cheaper.
2020-02-06 19:49:54 +01:00
2ac81f1fed
Add shimatta_analog library for new opamp
2020-02-06 19:37:24 +01:00
daeb2a7721
Move vias to better locations: These vias have proven unfortunately placed for hand soldering
2020-02-05 22:12:31 +01:00
d894012b73
Re-annotate components
2020-02-05 18:58:36 +01:00
05981966dc
Merge branch 'master' of git.shimatta.de:pcb/reflow-oven-control-pcb
2020-02-05 18:37:28 +01:00
fa6782c21d
Prepare for v1.2
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* Remove voltage buffer Opamp after TL431PK because it may oscillate
* Replace TL431PK with TL431LI. Stabilized by very large capacitance (> 10uF)
* Add panic passives to differential amplifier in order to avoid oscillaton. Values as they are now should work.
* Remove external ADC. Tests with version v1.1 show that the precision of the STM's ADC is sufficient, (once all oscillations are damped by modifying the circuit)
* Power whole OpAmp circuit with 3.3 volts in order to eliminate the need for the clamping diode at the ADC pin. This diode showed a high reverse current over temperature, which affected the measurement.
2020-02-05 18:30:34 +01:00
7b0e516c1e
v1.2 gerber output
2020-01-12 16:09:39 +01:00
0bf2bfe5f0
generate gerbers fpr V1.2
2020-01-12 16:02:03 +01:00
561c984ba9
Finalize layout and make smaller component value changes
2020-01-12 16:00:29 +01:00
ae4c0afbf9
Improve layout, change color of B.Silk and improve schematic
2020-01-12 14:56:58 +01:00
103550b2da
Layout opamp changes. Remove INA126 and put in 3 standard opamps instead
2020-01-11 20:58:21 +01:00
dda1209659
Remove INA126 because it doesn't work in this configuration. Replace by old subtractor circuit
2020-01-11 20:22:02 +01:00
f895e84418
fix sym lib table and refill zones
2020-01-04 20:52:22 +01:00
3c9929bcd6
Finalize version v1.0
2020-01-03 21:26:29 +01:00
6806a29e54
Add solder jumpers for connection between Earth and GND
2020-01-03 20:39:53 +01:00
b529535ae8
Schematic: Re-annotate everything
2020-01-03 20:05:39 +01:00
4e5bc3bae7
Schmatic: Improve layout in schematic
2020-01-03 20:04:57 +01:00
ea05b0885b
Add references for components
2020-01-03 18:45:37 +01:00
6546664939
Revert "Schematic: Redo component annotations"
...
This reverts commit 458f3d9769
2020-01-03 18:42:32 +01:00
458f3d9769
Schematic: Redo component annotations
2020-01-03 18:38:16 +01:00
cff848f02f
Small fixes and improvements
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* Card detect pin used
* Fix SD card slot
* Improve routing and via placement
2020-01-03 18:34:21 +01:00
3bba68b615
Improve layout
2020-01-02 00:17:38 +01:00
2c4c15e72b
Replace custom opamp circuit with INA126 instrumentation amp
2020-01-02 00:08:09 +01:00
f415c9b838
Update transformer footprint
2019-12-29 23:40:30 +01:00
0559a624bc
Moved stuff
2019-12-27 21:36:56 +01:00
