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Server lader

ep092·server_lader

Server lader PCB layout, top view — open source AVR/Arduino board by ep092

About the Server lader PCB

Server lader is an open source AVR/Arduino PCB design by ep092, published on GitHub. It is a 2-layer board measuring 100 × 80 mm, with 75 components from 44 distinct parts.

Its main chip is the ATMEGA168PA-A, from the AVR/Arduino family. Other key parts include the DAC8560, ACS758, LTV-356T, ADUM3441 and RD-0512D. By type, the board carries 27 capacitors, 21 resistors, 12 connectors, 9 ICs, 2 diodes and 1 crystal.

It belongs with the displays & leds designs in this gallery.

From the project

Umbau eines ESP120 zu einem Ladegerät

Es existieren Messwerte für 3 Sollwertspannungen:

61V 35,4 kOhm (-1,5V am Poti) 60V 42,5 kOhm (-1,3V am Poti) * 59V 51,6 kOhm (-1,1V am Poti)

Dazu ist es notwendig einen zusätzlichen Widerstand parallel zu den bereits vorhandenen auf einer der Platinen einzulöten. Es handelt sich um einen SMD-Widerstand in Bauform 0805 mit dem Wert "473" also 47 kOhm, der direkt neben einem SMD-Bauteil im Gehäuse SOT-223-3 liegt. Im Ordner "Bilder" ist die Stelle zu sehen, wo der Widerstand eingelötet werden muss.

Main components on the Server lader

ATMEGA168PA-ADAC8560ACS758LTV-356TADUM3441RD-0512DTPS7A4901OPA827LM4040

Server lader bill of materials (BOM)

75 components, 44 distinct parts.

QtyPartRefs
1
ATMEGA168PA-A
IC1
1
DAC8560
IC2
1
ACS758
U1
1
LTV-356T
U2
1
ADUM3441
U3
1
RD-0512D
U4
1
TPS7A4901
U5
1
OPA827
U6
1
LM4040
U7
1
RESONATEUR
Y1
1
5V_Vbatt
P1
2
DISPLAY_STECKER
P2, P10
1
CONN_02X03
P3
1
I2C
P4
1
IP+
P5
1
IP-
P6
1
UART
P7
1
CONN_01X01
P8
1
Drehrad
P9
1
on/off
P11
Show 24 more
QtyPartRefs
1
A_regulation_out
P12
1
EA_DOG-M
DISP1
1
FUSE
F1
1
SPEAKER
SP1
1
ZENER 5,6V
D1
1
LED
D2
16
100nF
C1, C2, C3, C4, C6, C7, C8, C9 +8
4
1uF
C5, C10, C14, C24
2
10uF
C17, C21
2
10nF
C18, C19
1
C_comp
C20
1
100nF
C25
1
C
C26
6
1k
R1, R6, R8, R11, R20, R21
1
200R
R2
3
R
R3, R9, R10
2
20k
R4, R5
1
15k
R7
1
R_G2
R12
1
R_G1
R13
1
33k
R14
2
10k
R15, R17
1
R_FB
R16
2
4,7k
R18, R19

Server lader design files

The KiCad project lives in the ep092/server_lader repository on GitHub; these links point at the commit this page was built from.

Server lader: common questions

What microcontroller does the Server lader use?

The Server lader is built around the ATMEGA168PA-A, from the AVR/Arduino family.

How big is the Server lader PCB?

The Server lader measures 100 × 80 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Server lader?

75 components, from 44 distinct parts. The full bill of materials is listed on this page.

Where can I download the Server lader design files?

From the ep092/server_lader repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Server lader design in my own project?

The repository has no license, so all rights stay with ep092. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Server lader without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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