Solder Station Plus
temperature control and DVM in one unit
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Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
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Extra info / Update
Suitable for use with 12 V / 30 W (max.) soldering irons.
Temperature control using PWM.
Power supplied from a low-cost 12 V /3.33 A mains adapter.
Two DC voltage measurement inputs.
Measurement ranges: 0 to 10 V (channel 1), 0 to 40 V (channel 2)
Displays supply voltage.
Microcontroller PIC18F4520 with flash memory
LC display 2 lines of 24 characters (with HD44780 controller)
Software calibration of measurement channels.
Components
The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.
Component list
R1,R7,R10 = 1kOhm
R2 = SIL array 4x10kOhm (5 pins)
R3,R4,R8 = 1MOhm
R5 = 100kOhm
R6 = 10kOhm
R9 = 2.2kOhm
P1 = 10kOhm multiturn preset, vertical, top adjustment, e.g. Bourns type 3266X-1-103LF
Capacitors
C1,C2 = 100µF 35V radial
C3,C4,C5 = 100nF
Semiconductors
D1,D2 = zener diode 5.1V 0.5W
T1 = FDD8445 (Fairchild, N-channel MOSFET, 40V, 5A, 8.7mOhm)
IC1 = 7805
IC2 = PIC18F4520-I/P, programmed, Elektor Shop # 090022-41
Miscellaneous
S1–S4 = pushbutton, single contact, e.g. Multimec 3FTL6 with cap 1D09
K1 = 14-way IDC connector for flatcable
LCD module, 2x24 characters (5.55mm height), 118x36x14 mm, e.g. Powertip PC2402LRS-AWA-B-Q (Farnell # 1671511) with connector and flatcable.
40-way DIL socket (for IC2)
X1 = 4MHz ceramic resonator, 3-pin
1 M3x5 screw with nut (for mounting IC1)
2 M3x20 screw with nuts (for LCD mounting)
2 plastic spacers, 15mm length (for LCD mounting)
12V / 30W soldering iron simple version without temperature sensor
PCB no. 090022-1 [1]
Main Features
Suitable for use with 12 V / 30 W (max.) soldering irons.
Temperature control using PWM.
Power supplied from a low-cost 12 V /3.33 A mains adapter.
Two DC voltage measurement inputs.
Measurement ranges: 0 to 10 V (channel 1), 0 to 40 V (channel 2)
Displays supply voltage.
Microcontroller PIC18F4520 with flash memory
LC display 2 lines of 24 characters (with HD44780 controller)
Software calibration of measurement channels.
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