HardLabs

Mains 18V TEC

scular-HCC·DualLaserPDHDriver·Laser_Driver_v4/Mains_18V_TEC/Mains_18V_TEC.kicad_pcb

Mains 18V TEC PCB layout, top view — open source board by scular-HCC

About the Mains 18V TEC PCB

Mains 18V TEC is an open source PCB design by scular-HCC, published on GitHub under the Custom license license. It is a 2-layer board measuring 160 × 100 mm, with 88 components from 37 distinct parts.

Other key parts include the LM4051AIM3-ADJ/NOPB. By type, the board carries 31 resistors, 28 capacitors, 10 transistors, 8 diodes, 6 connectors and 2 ICs.

It belongs with the test & measurement designs in this gallery.

From the project

Dual laster Pound-Dreaver-Hall driver setup. 1550 nm DFBs. Q=10^-5. Less than 20 GHz difference

A precision two-channel controller for 1550 nm DFB butterfly lasers — a differential optical thermometer built as a 3U Eurocard instrument.

Each channel provides low-noise constant-current laser drive, a bipolar linear TEC temperature controller, RF frequency modulation, and a synchronous-demodulation Pound–Drever–Hall lock that holds the laser to the side of an optical resonance. Lasers A and B lock to their own fringe of a shared reference cavity; the beat frequency between them, Δν = S·(TB − TA) with S ≈ 2 GHz/K, is a ratiometric measurement in which slow common-mode drift cancels.

Mains 18V TEC, from the project README
From the project README

Main components on the Mains 18V TEC

LM4051AIM3-ADJ/NOPB

Mains 18V TEC bill of materials (BOM)

88 components, 37 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
LM4051AIM3-ADJ/NOPB
Texas Instruments
U11, U12
2
IRF540NPBF
Infineon
Q1, Q3
2
IRF9540NPBF
Infineon
Q2, Q4
1
MMBT2907
Q5
1
MMBT2222
Q6
2
MJL21193
Q_PNP_MJL21193
onsemi
Q7, Q8
2
MJL21194
Q_NPN MJL21194
onsemi
Q9, Q10
5
Screw_Terminal_01x03
J1, J2, J3, J4, J5
1
374144-E
DIN41612_M_3x8+8_Power_Male
TE Connectivity (Erni)
J6
2
1N4148
D_CP1, D_CP2
1
Ametherm SL22 10005
Ametherm
TH1
1
GBU4M
D1
4
1N4742A
D2, D3, D8, D9
1
GBU1506
D7
2
1N4148W
D10, D11
4
470nF
C1, C2, C42, C43
2
2200uF 50V
C3, C4
2
1000uF 50V
C5, C6
6
2.2 uF
C7, C8, C44, C45, C52, C53
6
UPW1E332MHD
3300uF (UPW1E332MHD)
Nichicon
C34, C35, C36, C37, C38, C39
Show 17 more
QtyPartRefs
4
1000uF 25V
C40, C41, C48, C49
2
2200uF 35V
C46, C47
1
1000 uF C_out+
C50
1
1000 uF C_out-
C51
1
1k
R1
2
15
R2, R3
4
1M
R4, R5, R22, R23
4
100k
R6, R7, R26, R27
1
4.75 2W
R8
1
4.75, 2+W
R9
2
15R
R20, R21
2
15k
R24, R31
2
60.4k
R25, R30
2
1.5k Bias
R28, R29
4
0.1R
R34, R35, R36, R37
2
1k bleed resistor
R38, R39
4
RC0805FR-0710RL
10R base-stopper
YAGEO
R40, R41, R42, R43

Mains 18V TEC design files

The KiCad project lives in the scular-HCC/DualLaserPDHDriver repository on GitHub; these links point at the commit this page was built from.

Mains 18V TEC: common questions

How big is the Mains 18V TEC PCB?

The Mains 18V TEC measures 160 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mains 18V TEC?

88 components, from 37 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Mains 18V TEC design files?

From the scular-HCC/DualLaserPDHDriver repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Mains 18V TEC design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

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